lng绝缘箱装配视频(lng装卸操作视频)

1. lng装卸操作视频

一、竣工验收检查

建设项目是否经过消防验收合格。

二、消防安全管理检查

1.是否落实站区现场火源管理，是否存在加油加气区内吸烟、营业期间动用明火等违规现象，辅助服务区内是否存在新增明火或散发火花地点，设在加油加气区内的站房内是否存在明火设备。

2.是否严格落实动火审批制度，因设备检修等情况必须动用明火时是否停止加油加气作业，并采取提前清理置换罐体、管道油气、清除可燃物等可靠安全措施。

3.是否在站区内设置了“严禁烟火”等醒目的消防安全标识，加油加气区与辅助服务区之间是否设有明显界线标识。

4.是否按照操作规程进行卸油、加油（气）等作业。

5.是否在操作中落实防静电措施。

6.是否对现场开展防火巡查检查，及时发现并处置“跑、冒、滴、漏”现象。

7.是否按要求定期对消防设施器材和防静电装置进行检查、维修、保养，固定消防设施是否按要求每年至少进行一次全面检测。

8.是否定期对防静电接地装置进行检测。

9.是否按要求委托有相应资质的防雷装置检测机构对防雷设施进行定期检测，查阅检测报告结论是否为合格。

10.可燃气体浓度探测装置的报警阈值是否每年由当地质量技术监督部门进行检定，并查阅检定证书。

11.是否结合站内具体情况（针对储罐区、加油加气区、压缩机、站房等不同部位起火的情况）制定了灭火和应急疏散预案。

二、建筑防火检查

（一）平面布局检查

1.站内的储罐、加油机和液化石油气、压缩天然气工艺设施等部位，与站外建、构筑物的防火间距是否存在变化。

2.站内各建筑和设施的状态是否改变。

3.加油加气作业区内是否存在违规设置住宿、餐饮、商场（不含经营食品、饮料、润滑油、汽车配件等小商品的便利店）和娱乐等设施的现象，辅助服务区内的服务设施是否与加油加气作业区保持足够防火间距。

4.是否存在超量储存的现象。

5.站区内是否违规采用沥青路面。

6.站内是否存在违规种植的油性植物，液化石油气加气站内是否违规种植有树木和易造成可燃气体积聚的其他植物。

7.加油加气作业区内，是否有“明火地点”或“散发火花地点”。

（二）防火分隔检查

1.小型内燃发电机组的废气排出口是否安装有阻火器，排烟管口至各爆炸危险区域边界的水平距离是否符合以下规定：当排烟口高出地面4.5m以下时，不应小于5m；当排烟口高出地面4.5m及以上时，不应小于3m。

2.加油加气站内是否按规定采用明沟排水，围墙处设置的水封装置是否正常。

3.位于爆炸危险区域内的操作井、排水井的防渗漏和防火花发生的措施是否到位。

4.站房与餐厅、汽车服务、锅炉房、厨房、员工宿舍、司机休息室等设施之间是否以无门窗洞口的实体防火墙分隔。

5.站内的锅护房、厨房等有明火设备的房间与工艺设备之间的距离符合防火间距的规定但≤25m时，其朝向加油加气作业区的外墙是否为无门窗洞口的实体防火墙。

6.加油站内的工艺管道除必须露出地面的以外，是否均已埋地敷设。当采用管沟敷设时，管沟是否用中性沙子或细土填满、填实。

（三）电气防爆、防雷、防静电措施检查

1.检查站内罩棚、泵房、压缩机间、营业室等部位设置的事故照明是否正常。

2.爆炸危险区域内电器设备选型、电气线路敷设是否符合防爆要求。

3.储罐（瓶组）防雷防静电接地是否完好，接地点是否不少于2处。

4.埋地储罐与量油孔、通气管、放散管及阻火器、油罐车御油用的卸油软管、油气回收软管与两端快速接头等附件相互间的电气连接是否良好。

5.油品和液化石油气卸车场地，是否设置接地装置、跨接线及静电接地仪。

6.爆炸危险区域内的油、气管道上的法兰、胶管两端的金属线跨接是否保持完好。

7.当采用电缆沟敷设电缆时，加油加气作业区内的电缆沟内是否充沙填实，电缆是否违规与油品、气体管道以及热力管道敷设在同一沟内。

三、消防设施器材检查

1.检查LPG、LNG加气站及合建站设置的固定消防给水系统。

2.检查加油站的灭火器材配备。

3.检查配置的灭火器型号是否与使用环境相符；检查灭火用沙子是否保持干燥，有无结块、冰冻现象。

4.检查加气站、加油加气合建站内设置有LPG设备、LNG设备的场所和设置有CNG设备(包括罐、瓶、泵、压缩机等)的房间内、罩棚下是否按要求设置可燃气体检测器，报警功能是否正常，配备的不间断电源是否正常。

四、重点部位检查

（一）加油加气作业区

1.加油机、加气机是否违规设置在室内。

2.加气枪加气软管上是否设有拉断阀。

3.自助加油站是否设置了加油油气回收系统和视频监控系统，加油机是否设置了释放静电装置和紧急停机开关。

4.加气机附近是否设有防撞柱(栏)；加气机附近安装的可燃气体探测器是否完好、正常。

5.液化石油气加气机的液相管道上是否设置能自行关闭的事故切断阀或过流阀。

6.液化石油气加气机附近是否设置有紧急切断按钮或装置。

7.压缩天然气加气机安全限压装置是否正常。

8.加油加气机内部电器选型和电气线路敷设是否符合防爆要求，防静电等电位连接和接地装置是否完好。

9.加油(气)软管是否存在软管老化、管内导静电铜丝断裂等情况。

10.现场是否存在“跑冒滴漏”现象。

11.站内紧急切断系统功能是否正常。

（二）油罐区

1.检查油罐通气管管口阻火器是否完好。

2.检查汽油罐与柴油罐是否分开设通气管，是否高出地面不小于4m，通气管公称直径是否大于50mm。

3.当采用卸油油气回收系统和加油油气回收系统时，汽油罐通气管口是否安装了机械呼吸阀。

4.检查油罐车卸油是否采用密闭卸油方式,密闭卸油管道的各操作接口处，是否设有快速接头及闷盖和明显标识。

5.油罐液位计的高液位报警及自动停止进油功能是否正常。

6.卸油时用的卸油连通软管、油气回收连通软管，是否采用导静电耐油软管或内附金属丝（网）的橡胶软管，软管有无老化、管内导致静电铜丝断裂等情况。

（三）站房内锅炉间

1.设置在站房内的锅炉间是否用耐火极限不低于3h的隔墙与其他房间隔开。

2.燃煤锅炉烟囱出口是否高出屋顶2m及以上，是否采取防止火星外逸的有效措施。

3.采暖用燃气热水器是否设有排烟系统和熄火保护等安全装置。

2. lng卸车流程图

液化气也就是我们家里用的天然气，这种其实是需要经过一定的工艺和流程才能够得到的，天然气在液化过程中得到净化变得无色无味、无毒，不仅有利于环境保护，而且可以节省成本，下面来带您了解天然液化气是如何生产的。

工艺流程图如下：

从原料气开始到进入储罐和装车系统，生产LNG大概历经七个步骤。

第一步，原料气进入过滤分离器，进一步分离脱除夹带的液滴和固体颗粒物。

第二步，原料气经过计量后进入胺接触塔，通过与胺液充分接触，脱除原料气中的酸性气体。

第三步，脱除酸性后的天然气进入分子筛干燥器，脱除上游胺装置未能脱除的水分和低分子量的硫醇。

第四步，脱水合格后的天然气进入脱汞床，脱除原料气中可能含有的微量汞。

第五步，通过实时分析原料气，脱酸、脱水、脱汞后指标合格的原料气进入氨预冷器，与液氨进行充分换热，对原料气进行初步预冷。

第六步，预冷后的天然气进入重烃洗涤系统，脱除原料气中C5以上的重组分子后进入冷箱，再与混合冷剂充分换热，逐步冷却至-160℃后离开冷箱。

第七步，LNG进入输送管线，最终进入LNG储罐。

在生产液化天然气中所涉及到的工艺有：

（1）单一制冷液化工艺

这种液化工艺也被叫作阶式制冷液化工艺或串级液化工艺，该工艺的使用主要应用到一定的制冷剂，比如甲烷、乙烯或者丙烷等 除此之外，还需要低温度环境，处理后的温度将会一次达到零下30度、零下90度、零下150度左右，在冷却剂与超低温的双重作用下天然气便会冷却转换成液化的天然气。

2) 膨胀制冷液化工艺

这种液化工艺是一种不采用制冷剂的液化工艺，该工艺的特点是天然气原料气经压缩后再经节流后温度下降从而实现部分液化，先利用压缩机对于气态的天然气进行加工，加工以后，再对天然气进行冷却，冷却以后，利用膨胀机器对于冷却后的天然气进行膨胀处理，进而使得天然气得到液化。

由于经过液化处理过的天然气更加适合运输和储存，而且可以保证液化天然气处于制冷状态，直到它被还原为气态。当液化天然气被升温还原为它的自然状态时，天然气就可通过管线输往家庭用户、发电厂和工业用户。

3. lng装液操作视频

下载抖音上的视频然后发送到soul上面就好了。

首先我们需要打开抖音，然后把你想要发送到这个软件上的抖音视频给下载下来，下载成功以后你再打开你想要发送的这一个软件，点击打开这个软件以后，你点击发布瞬间你就可以发布你想要发布的视频了，当然如果你是要发布给个人的话，那你就点进和他的对话框按加号，并且按图片按钮，然后把相关视频打勾发送即可。

4. lng槽车卸车视频讲解

换车的下口可装车操作时，他是有一个型号一样的卡套，把他拧转卡住

5. lng装卸车视频

lng是液化天然气，属于易燃液体。温度极低，可达零下162℃。所以在卸车过程中，操作人员除穿防静电服之外，在个人防护方面还必须穿戴好防护镜，低温手套，安全帽及安全鞋，以防止万一lng泄露之后，低温液体溅落在裸露的皮肤上，造成严重冻伤。

6. lng装车操作流程视频

音标是学习英语的第一步，想要学好音标需要认识音标、会读音标，这样以后才能认识单词。在学习音标前，我们要先知道国际音标有48个，元音有20个，辅音有28个，元音又分为单元音和双元音，单元音有12个，双元音有8个。

音标数目

在上表中，我们可以看到音标有48个，现在我们常说的国际音标也是48个。

可以点击下面链接学习音标。

《【48个英语音标示范读音-哔哩哔哩】 https://b23.tv/mt9vVaK》

元音部分

辅音部分

音标的分类

最实用的分类方式是：元音=长元音+短元音+双元音；辅音=清辅音+浊辅音。

英语一共有48个国际音标，包括20个元音，28个辅音。

20个元音包括5个长元音：/i:/、/ɜ:/、/u:/、/a:/、/ɔ:/；

7个短元音：[i] [ə] [ɔ] [u] [ʌ] [e] [æ]；

8个双元音：/eɪ、/aɪ/、/ɔɪ/、/ɪə/、/eə/、/ʊə/、/əʊ/、/aʊ/；

注意：

1、长元音顾名思义就是发的音比较长而饱满；短元音则发的音比较短而急；

2、双元音就是两个单元音拼在一起，成为组合音。双元音发音的特点是前面的单元音发音长，后面的发音比较短。

28个辅音包括：轻辅音/p/ /t/ /k/ /f/ /θ/ /s/ /ʃ/ /ts/ /tʃ/ /tr/ /h/

浊辅音 /b/ /d/ /g/ /v/ /ð/ /z/ /ʒ/ /dz/ /dʒ/ /dr/ /r/

鼻音 /m/ /n/ /ŋ/

半元音 /j/ /w/

边音 /ǀ/

发音技巧

长元音

点击这个视频学习长元音发音。《【元音音标（长元音）-哔哩哔哩】 https://b23.tv/xz9mOz3》

5个长元音/i:/、/ɜ:/、/u:/、/a:/、/ɔ:/发音技巧。

（1）/i:/发音技巧：

发音时舌尖抵下齿，口形扁平。在发音的时候要尽量拉长，就像古人喝醉酒以后吟诗的感觉。

单词举例：bee [biː] n. 蜜蜂；see [siː] v. 看见，参看

（2）/ɜ:/发音技巧：

/ɜ:/是长元音，近似于北京腔的“儿”话音，如“花儿”的“儿”。发好这个音，关键在于卷舌！

单词举例：shirt [ʃə:t] n. 衬衫,男士衬衫；nurse [nə:s] n. 护士,保姆

（3）/u:/发音技巧

发这个音时双唇用力向前突出，有点像拉长了音说“乌”，但要注意，“乌”的口形较扁。

单词举例：moon [mu:n] n. 月球,月亮；room [ruːm] n. 房间,空间

（4）/a:/发音技巧

发音时口张大，双唇稍收圆。发音时可以照着镜子，说“啊”，看看嘴巴张得够不够大，记得要将嘴巴尽量张大。

单词举例：ask [a:sk] v. 问,询问； far [fa:r] adj. 远的

（5）/ɔ:/发音技巧

发这个音时，双唇稍稍收圆，并向前突出，发音接近于汉语“嗷”。这是个长元音，记住：长元音一定要拉长，发出来才好听。

单词举例：door [dɔ:r] n. 门； short [ʃɔ:t] adj. 短的

短元音

点击这个视频学习短元音发音。《【【英语音标7个短元音/ʌ/ /ɒ/ /ə/ /ɪ/ /ʊ/ /e/ /æ/怎么读？】-哔哩哔哩】 https://b23.tv/fo9Bd5E》

7个短元音：/i/、/ə/、 /ɔ/、/u/、/ʌ/、/e/、/æ/

（1）/i/发音技巧

它是个短元音，发音要短促而轻快。

单词举例：big [bɪɡ] adj. 大的,庞大的；Fit [fit] v. 合身,适合于

（2）/ə/发音技巧

发音时舌身平放，双唇扁平。发这个音时不用卷舌。

单词举例：teacher [ˈtiːtʃə] n. 老师,教师； mother [ˈmʌðə] n. 母亲

（3）/ɔ/ 发音技巧

这是一个短元音，发音一定要短，发音比/ɔ:/短一些，双唇稍稍收圆，并向前突出。

单词举例：dog [dɔg] n.狗,家伙；hot [hɔt] adj. 热的,辣的

（4）/u/ 发音技巧

发音时双唇收圆，稍突出。就像发汉语中的“乌”，但没发完就给打断了一样。

单词举例：book [bʊk] n. 书,卷；cook [kʊk] vt. 烹调,煮

（5）/ʌ/ 发音技巧

发音时舌尖和舌端两侧轻触下齿，唇形稍扁，开口度较大。这个发音有点像发“啊”音时突然被谁卡住了脖子的感觉。

单词举例：brother['brʌðə(r)] n. 哥哥，弟弟；mother [ˈmʌðə] n. 母亲

（6）/e/发音技巧

发音时舌尖抵下齿，舌前部稍抬起，上下嘴张开的角度大约呈“45度”，同时发出声音。

单词举例：leg [leg] v. n. 腿,支柱； desk [desk] n. 书桌

（7）/æ/发音技巧

发音时，双唇向两边平伸，张开嘴，嘴唇放松逐渐压低舌头7和下颚，尽可能夸张。

单词举例：bad [bæd] ：adj. 坏的,不好的；cat [kæt] ：n. 猫，猫科动物

双元音

点击这个视频学习双元音发音。《【【英语基础】英语国际音标-8个双元音的发音-哔哩哔哩】 https://b23.tv/VQsPDdl》

8个双元音发音技巧：/eɪ/、/aɪ/、/ɔɪ/、/ɪə/、/eə/、/ʊə/、/əʊ/、/aʊ/

（1）/eɪ/发音技巧

该音是个双元音，发音时双唇稍扁，口形从半开到合。类似于英文字母“A”。

单词举例：say[sei] v.说；delay[diˈlei] n. 延迟 

（2）/aɪ/发音技巧

发此音的关键是要把/a/音发足，接近于英文字母中的“I”。

单词举例：ice  [ais] n. 冰，雪糕；side [said] n. 面，边

（3）/ɔɪ/发音技巧

发音时双唇从圆到扁，口形从开到合。接近于汉语发音“奥一”。

单词举例：oil  [ɔil] n. 油，石油；noise [nɔɪz] n. 噪音，嘈杂声

（4）/ɪə/发音技巧

发声时，由第一个音[i]向[ə]集中，接近于汉语发音“一呃”。

单词举例：fear   [fɪər] ：n. 害怕，可能性；dear   [dɪər] ：adj. 亲爱的

（5）/eə/发音技巧

接近于汉语发音“哎呃”。

单词举例：bear  [bɛə] ：n. 熊；wear  [wɛə] ：vt. 穿着

（6）/ʊə/发音技巧

第一个是“短乌音”/u/，第二个是/ə/。类似于汉语发音“屋呃”。

单词举例：sure [ʃʊər] adj. 确信的，确实的；pure  [pjʊər] adj. 纯的； 单纯的

（7）/əʊ/发音技巧

舌位由半低到高，口形由半开到小。接近于汉语发音“呃屋”。

单词举例： flow  [fləu] ：vi. 流；glow   [ɡləʊ] ：vi. 发光，灼热

（8）/aʊ/发音技巧

由第一个音向第二个音滑动，接近于汉语发音“啊屋”。

单词举例：cow [kaʊ] n. 奶牛，乳牛；hour [aʊər] n. 小时，钟头

辅音

点击这个视频学习辅音发音。《【英语音标（辅音部分），发音规则与技巧！美式发音，地道口语！清辅音，浊辅音！初级，零基础，欢迎新手！-哔哩哔哩】 https://b23.tv/dCgZVAA》

11个清辅音 /p/ /t/ /k/ /f/ /θ/ /s/ /ʃ/ /ts/ /tʃ/ /tr/ /h/

11个浊辅音 /b/ /d/ /g/ /v/ /ð/ /z/ /ʒ/ /dz/ /dʒ/ /dr/ /r/

注意：

清辅音：发音时送气，声带不颤动（颤不颤用手放在喉咙上就知道了）

浊辅音：发音时不送气(拿张纸放在嘴前，纸没有被吹开)，声带颤动。

（1）/p/ /b/谐音分别为“普”、“卜”，都省去韵母成分

发音方法：/p/是清辅音，声带不振动；/b/是浊辅音，声带振动。

单词举例：/p/：pen [pen] n.钢笔；pin [pin] n.大头针

/b/：bike [baik] n.自行车；beg [beg] v.乞求

（2）/t/ /d/分别谐音“特”、“得”。

发音方法：/t/是清辅音，声带不振动；/d/是浊辅音，声带振动。

单词举例：/t/ ：ten [ten] num； test [test] n. 试验, 考验

/d/： student [ˈstudnt]  n.学生； date  [deɪt] n.日期、日子、约见时间 v.注明日期、写上日期

（3）/k/ /g/分别谐音“可”、“嗝”。

发音方法：发音时舌后部隆起紧贴软颚，憋住气，然后突然分开，气流送出口腔，形成爆破音。/k/是清辅音，声带不要振动；/g/是浊辅音，声带需要振动。

单词举例：/k/ ：kite [kait] n. 风筝；cake [keɪk] n. 蛋糕

/g/： glove [ɡlʌv] n. 手套；girl [ɡə:l] n. 女孩

（4）/f/ /v/

/f/谐音“府”，/v/就是北方人把W读成V那种感觉。

发音方法：发音前，上齿咬住下嘴唇，然后使气流由唇齿间的缝隙中通过，从而引起摩擦。

/f/是清辅音，发音时声带不震动；/v/是浊辅音，发音时声带振动。

单词举例：/f/：flower ['flaʊər] n. 花；fly [flai] vi.飞, 飞行

/v/：love [lʌv] v. 爱；seven [ˈsevən] num. 七

(5)/θ/ /ð/ 牙齿轻咬舌尖发出的音

发音方法：发音时，舌尖微微伸出，置于上下门齿之间，舌尖和下齿之间的气流通道非常窄小，气流从舌齿间的窄缝中通过。/θ/是清辅音，发音时声带不振动；/ð/是浊辅音，发音时声带振动。

单词举例：/θ/：three [θri:] num. 三； throw [θrəʊ] vi. 投掷

/ð/：this [ðɪs] pron. 这,这个，这里； mother [ˈmʌðə(r)] n. 母亲

(6)/s/ 谐音“丝”，/z/“zi”

发音方法：发音时舌端靠近齿龈，气流由舌端齿龈间送出。/s/是清辅音，声带不振动；/z/是浊浦音，声带振动。

单词举例：/s/：school [sku:l] n. 学校，学院；bus [bʌs] n. 公共汽车

/z/：please [pli:z] int.请；zoo [zu:] n.动物园

(7)/ts/ /dz/分别谐音“次”、“自”

发音方法：舌端先贴住上齿龈，堵住气流，气流送出口腔。/ts/是清辅音，声带不振动，/dz/是浊辅音，声带振动。

单词举例：/ts/：cats [kæts] n. 猫( cat的名词复数 )；hats [hæts] n. 帽子( hat的名词复数 )

/dz/：hands [hændz] n.手；lands [lændz] n.陆地

(8)/tr/ /dr/分别谐音“戳”、“捉”

发音方法：舌尖贴齿龈后部，气流冲破阻碍发出短促的/t/后立即发/r/。/tr/是清辅音，声带不振动；/dr/是浊辅音，声带振动。

单词举例：/tr/ : tree [tri:] n. 树，木料；try [traɪ] vt.& vi. 试图

/dr/：dress [dres] n.连衣裙；drink [drɪŋk] v.喝酒

(9)/∫/ /ʒ/分别谐音“诗”、“日”

发音方法：/∫/是清辅音，声带不振动；/ʒ/是浊辅音，声带振动。

单词举例：/∫/：English [ˈɪŋglɪʃ] adj. 英格兰的； 英国的；rubbish [ˈrʌbɪʃ] n. 垃圾；

/ʒ/：pleasure [ˈpleʒə] n.快乐，愉快；casual [ˈkæʒuəl] adj意外的，偶然的

（10）/t∫/ /dʒ/分别谐音“吃”、“之”

发音方法：发音时舌身抬高，舌端抵上齿龈后部，气流通过时发出破擦音。/t∫/是清辅音，声带不振动；/dʒ/是浊辅音，声带振动。

单词举例：/t∫/： chalk [tʃɔ:k] n. 粉笔；chair [tʃeər] n. 椅子

/dʒ/：page [peɪdʒ] n.页 ；age [eɪdʒ] n.年龄

(11)/h/ /r/分别谐音“呵”、“若”，省去韵母成分。

发音方法：

发/h/这个音时，嘴半开，气流从口腔不受阻碍而出，声带不振动，清辅音。

发/r/这个音时，舌端上卷，靠近上齿龈附近，嘴唇张开并保持略圆状态，气流从口腔涌出，声带振动，属于浊辅音。

单词举例: /h/： hair [heə(r)] n.头发；hate [heɪt] v.恨，厌恶

/r/： sorry ['sɒrɪ] v.对不起 ；write [raɪt] v.写

鼻音

点击这个视频学习鼻音发音。《【（21）鼻音 m n ŋ | 英语音标发音口型示范 | 美式发音-哔哩哔哩】 https://b23.tv/8P1jfXx》

(1)/m/谐音“恩”

发音方法：双唇紧闭，软腭下垂，气流从鼻腔发出，声带震动。闭口音。

单词举例：major [ˈmeɪdʒə(r)] adj.主要的；time [taɪm] n.时间

(2)/n/谐音“呢”

发音方法：舌尖顶住上齿龈，形成阻碍，气流从鼻腔发出，同时声带震动，开口音。

单词举例：nice [naɪc] adj.漂亮的；funny [ˈfʌni] adj.有趣的

(3)/ŋ/谐音“英”，省去声母部分

发音方法：发音时气流从鼻腔涌出，声带振动。

单词举例： think [θɪŋk] v.想；angel [ˈeɪndʒl] n.天使

边音

点击这个视频学习边音发音。《【真正的国际音标-边音 Lateral-哔哩哔哩】 https://b23.tv/G9C7X9F》

/l/谐音“里”

发音方法：舌尖顶住上齿龈，发音时气流从舌面的两侧通过，声带保持震动，属于浊辅音。

单词举例：light [laɪt] n.光线 ；ball [bɔ:l] n.球

半元音

点击这个视频学习半元音发音。《【BBC英语 其他辅音 半元音'w'的发音 与'v'的区别 国际音标发音｜Pronunciation Tips 34 - Other Consonant-哔哩哔哩】 https://b23.tv/fC2pYDl》

/j/谐音“耶”

发音方法：发音时声带震动，气流口腔发出。浊辅音，发音口型类似/ i/.

单词举例：ye [jes] adv.是的；young [jʌŋ] adj.年轻的

/w/谐音“屋”

发音方法：嘴唇张开到刚好可以含住一根吸管的程度，并向前微噘起，但上齿不能接触下唇,立刻滑向其后的元音。

单词举例：wish [wɪʃ] ：v. 希望； which [wɪtʃ] ：pron. 哪一个

学习步骤

抄写

抄写音标，并了解音标特点。

对音标的基本认知

1、区别长短音带“：”的音标发音相对较长不带“：”的音标发音相对较短。

2、区别清辅音和浊辅音核心区别：清辅音声带不震动，浊辅音声带振动。

模仿练习

找合适的视频学习学习跟读。例如b站上《【赖世雄48个英语音标朗读示范，美音英音对照版-哔哩哔哩】 【https://b23.tv/sHYQFZ3】》、《【李咏梅老师英语（音标部分）——最牛的初中英语老师！没有之一！李咏梅国际音标 （完整版发音篇）-哔哩哔哩】 https://b23.tv/U1pmjNE》、《【纯正英式发音】这是BBC出品的到现在为止最棒的英语发音教程（完整版）-哔哩哔哩】 https://b23.tv/gZzDKl5》，以上几个视频都非常不错，详细讲解每个音标的读法。注意视频一定至少跟读5遍，才能确保你的学习效果。

也可以通过下面这个视频观察发音口型的变化。

《【48个英语音标示范读音-哔哩哔哩】 https://b23.tv/mt9vVaK》

1、模仿练习，学习国际音标的发音，要注意观察老师的口型，观察发音部位的变化，主动模仿发音，初学可以对着镜子模仿练习，特别是元音发音的舌位高低，口腔开口度大小与音色关系十分密切，可以通过镜子观察口型上的区别，观察舌尖、舌面、舌叶的活动情况，比如u和o、i和e、e和ε等等，掌握准确口腔开口度，对于准确发音具有非常重要的意义。

2、听音训练:学习国际音标需要认识48个音标，通过反反复复的听力练习，达到强化记忆。听音训练，如果有条件，可以多听老师朗读音标，也可以使用录音带反复听音，本课件中的每个音素，都可以循环倾听，强化记忆。

3、多动口，动口是加强实践的关键和核心，听音也好，模仿也好，比较也好，最终要归结到自己发音这一目标上来，所以勤动口是掌握国际音标发音的关键。俗话说，"三天不写手生，三天不念口生"，说的就是要加强动手动口能力的培养。因此学习国际音标，要时时加强语音训练，勤动口，反复实践练习，在实践中比较，在实践中体会差别，做到熟能生巧，这样自然就掌握国际音标的发音了。

重点音标讲解

单元音

[i:] =“一”

[ɪ]：[ɪ]开口要比[i:]稍大，注意比较两图口型。

[e] 嘴张45°，[æ]嘴张90°

[ɜ:r] [ər]=“二”

[ə]=额（不卷舌）

[ʌ]：开口比“啊”略小

[ɑ:r]=卷舌的“啊”

[ɑ] =“啊”

[ɔ] =开口稍大的“哦”

[ɔ:r]=卷舌的“哦”

[u:]核心：双唇由半开微突，过渡到合嘴圆唇

[ʊ] 发成噘嘴的[ə],气流向外。

双元音

双元音较简单，大多数可进行类比，注意双元音的重音在第一个音标，即前一个音读的稍重，后一个音读的较轻。

[eɪ]=“A”

[aɪ]=“I”

[əʊ]=“O”

[ɔɪ]=“哦一”

[ɪə]=ear

[eə]=air

[ʊə]=“乌尔”

辅音

大部分辅音跟“汉语拼音”都有相似之处，直接看视频模仿即可，这里只讲解易错发音。

爆破音：

[t] [p] [k] 不要读成[tə] [pə] [kə] 注意：它们声带不震动

摩擦音：

[f][v] 咬唇音，注意上齿咬下唇

[θ][ð]

上下齿轻咬舌头，发音时能看到你的舌头露出

[ʃ]=不发音的“诗” [ʒ]= “日”

[r]=撅嘴＋卷舌的“热” [h]=不发音＋舌头平放的“喝”

鼻音

[m] 合嘴

[n] 舌前部抵住上颚

[ŋ] 嘴巴张开

舌侧音[l]

元音前：跟拼音“l”发音一致元音后：发“l”的前半段

半元音

[j] “也”

[w] =圆唇噘嘴的“我”

破擦音

[tʃ]= 不发声的“吃”

[dʒ]= “居”

[ts]=不发声的“次”

[dz]=“子”

[tr] 先发“t”，在发“r”，最后结合在一起

[dr] 同上

词汇拼读

1、规划拼读任务，拿出单词书或课本词汇表，找只含1~2个音节的单词拼读，20个为一组，每天练习3组，当然如果有时间，多进行几组也OK，加强效果。后期难度逐渐加大。

2、输入法识别词汇，每拼读一个词汇，都对着X飞输入法的语音识别功能朗读，看能否被输入法识别出单词，用机器来检测是否读的准确。

3、听词汇跟读，不管输入法识别出单词，还是没识别出单词，都要查手机字典，来听一遍听力，并跟读，模仿语调和轻重读音。

例如：Cash driver apartment money breakfast lawyer agency

学习计划

1、国际音标，一共48个，每天学4个，12天学完，元音和辅音每天各学习两个。

2、学完以后结合和音标相关的单词，每天坚持读一个小时，第二天要把第一天的一块儿读，第三天要把前两天的一块儿读，依次类推，坚持学完所有的音标，就可以读字典上任何一个单词。

3、长期坚持下去，会发现其实很多字母和音标有着关联，比如ph都发音标f的音，字母u发尖a的音，类似的规律，当大家坚持下来以后会发现很多，同时你甚至可以听到单词的发音就能把单词拼出来，直接就把背单词的问题解决了，音标会读，单词会读，单词会背，听力当然也不再是问题。自己总结出来的规律说明真的学会了，同时自己得出来的结论要比老师直接告诉你印象更深刻，同时最重要的是用起来更容易。

注意事项

1、了解发音要领，模仿老师口型

学习语音，一定要注意口型，并仔细揣摩每个音标的发音要领，特别是相似音标的发音区别。

零基础学员不要以为盯着老师的口型就好了，其实发音很多都是内部器官看不到的， 所以需要老师正确的发音示范，跟着老师一起读，然后再加上老师给的一些技巧，继续跟读，老师感觉哪有问题，再帮着纠正，这样一系列过程才是练成标准发音的秘籍。

2、 单词拼读实战，一对一纠正错误

养成一口纯正口语最重要的还是练习练习再练习，单词拼读实战训练，巩固你的发音。不断读，不断纠正，训练单个音标到训练多个单词，在学习语音的过程中，再掌握一些基础的词汇。

3、辩音练习，纠正错误，掌握发音规律

训练难度会随着课程的深入不断加强，但还是训练相同的内容，一节课很多类似的训练内容。音标中很多类似的发音，将相似音放在一起对比再练习，舌头和耳朵在这很重要。

%3Chowto_content%3E[{"type":"paragraph","attrs":{"is_abstract":true},"children":[{"type":"text","text":"音标是学习英语的第一步，想要学好音标需要认识音标、会读音标，这样以后才能认识单词。在学习音标前，我们要先知道国际音标有48个，元音有20个，辅音有28个，元音又分为单元音和双元音，单元音有12个，双元音有8个。","id":""}],"text":"","id":"X0ayd2WScoy4M6xsFVmcneA8n8f"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"音标数目","id":""}],"text":"","id":"XGMMdqqKGoIkyGxmsOVcclDvnFd"},{"type":"paragraph","children":[{"type":"text","text":"在上表中，我们可以看到音标有48个，现在我们常说的国际音标也是48个。","id":""}],"text":"","id":"AESAdWCuQoQUiuxmQkVcGNVXnbe"},{"type":"paragraph","children":[{"type":"text","text":"可以点击下面链接学习音标。","id":""}],"text":"","id":"E20kdWCCso4ykCx45GjcqgWynqa"},{"type":"paragraph","children":[{"type":"text","text":"《【48个英语音标示范读音-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/mt9vVaK"},"children":[{"type":"text","text":"https://b23.tv/mt9vVaK","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"AqckdkO2SoWKyoxQJlCcXjKcn4f"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"元音部分","id":""}],"text":"","id":"MsOsda4UyoA0yUx4xP6czKClnJg"},{"type":"image","attrs":{"height":345,"note":[{"type":"text","text":"元音部分","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/a663fdb6f1284e47acca44c09060b0a2","width":694},"text":"","id":"AEKudCk2So0cmMxCAIeceBvxnjf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"辅音部分","id":""}],"text":"","id":"KisEdmSmgogIwoxC4ZMcG3QknLe"},{"type":"image","attrs":{"height":601,"note":[{"type":"text","text":"辅音部分","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/7467dcbf994549a5a6381df079b4301f","width":561},"text":"","id":"PAIEdU6suogWcexSCXRc664TnUf"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"音标的分类","id":""}],"text":"","id":"YouadwUQwosyeyxasemc2PIHnjb"},{"type":"paragraph","children":[{"type":"text","text":"最实用的分类方式是：元音=长元音+短元音+双元音；辅音=清辅音+浊辅音。","id":""}],"text":"","id":"IwWMdM0y4okSc6xUXz8cZOKMnWg"},{"type":"paragraph","children":[{"type":"text","text":"英语一共有48个国际音标，包括20个元音，28个辅音。","id":""}],"text":"","id":"ZEYEdomcAoIWSIx0gs6ctJvEnHg"},{"type":"paragraph","children":[{"type":"text","text":"20个元音包括5个长元音：/i:/、/ɜ:/、/u:/、/a:/、/ɔ:/；","id":""}],"text":"","id":"TOEMdsCmEo8wmuxy9sgchI0Dncu"},{"type":"paragraph","children":[{"type":"text","text":"7个短元音：[i] [ə] [ɔ] [u] [ʌ] [e] [æ]；","id":""}],"text":"","id":"JSgsdwwsWoc2i8xcLMycBbyfnae"},{"type":"paragraph","children":[{"type":"text","text":"8个双元音：/eɪ、/aɪ/、/ɔɪ/、/ɪə/、/eə/、/ʊə/、/əʊ/、/aʊ/；","id":""}],"text":"","id":"FEqydSEaYoYgAExG0OJcpQCinVe"},{"type":"paragraph","children":[{"type":"text","text":"注意：","id":""}],"text":"","id":"QgMudGYi4ooOcUxmocWcCoCEn1I"},{"type":"paragraph","children":[{"type":"text","text":"1、长元音顾名思义就是发的音比较长而饱满；短元音则发的音比较短而急；","id":""}],"text":"","id":"CUm2dg0ayooas8xw7mKc1LHmnHb"},{"type":"paragraph","children":[{"type":"text","text":"2、双元音就是两个单元音拼在一起，成为组合音。双元音发音的特点是前面的单元音发音长，后面的发音比较短。","id":""}],"text":"","id":"L6kydWcCEosSoGx4YDdcStKNnRb"},{"type":"paragraph","children":[{"type":"text","text":"28个辅音包括：轻辅音/p/ /t/ /k/ /f/ /θ/ /s/ /ʃ/ /ts/ /tʃ/ /tr/ /h/","id":""}],"text":"","id":"AIKwdykA4ogsCMxghM8cwNI2ndd"},{"type":"paragraph","children":[{"type":"text","text":"浊辅音 /b/ /d/ /g/ /v/ /ð/ /z/ /ʒ/ /dz/ /dʒ/ /dr/ /r/","id":""}],"text":"","id":"EKwedeuCIoQOQOxsPGjcKnRinVe"},{"type":"paragraph","children":[{"type":"text","text":"鼻音 /m/ /n/ /ŋ/","id":""}],"text":"","id":"NsCOdg4ACo2C8cxYDOvc9jprnMe"},{"type":"paragraph","children":[{"type":"text","text":"半元音 /j/ /w/","id":""}],"text":"","id":"YgEed6IysogkMcxCm9rcZCI9nMc"},{"type":"paragraph","children":[{"type":"text","text":"边音 /ǀ/","id":""}],"text":"","id":"UkYUdw6iMoqSiqxwvFGcq3HTnTb"},{"type":"image","attrs":{"height":551,"note":[{"type":"text","text":"音标的分类","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6872a8bb79f14f40989a6ed6bc41be7a","width":720},"text":"","id":"C4qGduOAkoiWuQx0ixicZGvqnPh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"发音技巧","id":""}],"text":"","id":"VYc4dsOwco02wAxAp27chauenkc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"长元音","id":""}],"text":"","id":"MI8CdGMgmoi24ox6Isuc2rBwnSg"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习长元音发音。《【元音音标（长元音）-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/xz9mOz3"},"children":[{"type":"text","text":"https://b23.tv/xz9mOz3","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"AmiUdgiYaoo2m8xCLThcfQzVnob"},{"type":"paragraph","children":[{"type":"text","text":"5个长元音/i:/、/ɜ:/、/u:/、/a:/、/ɔ:/发音技巧。","id":""}],"text":"","id":"FKwydmY08oE4Esxsthgc7bG6ngf"},{"type":"paragraph","children":[{"type":"text","text":"（1）/i:/发音技巧：","id":""}],"text":"","id":"JICedKKGioa2S6xOb2IcdXk7n31"},{"type":"paragraph","children":[{"type":"text","text":"发音时舌尖抵下齿，口形扁平。在发音的时候要尽量拉长，就像古人喝醉酒以后吟诗的感觉。","id":""}],"text":"","id":"PuU6dGQ4goEwuyx0SHAcyATXnRh"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：bee [biː] n. 蜜蜂；see [siː] v. 看见，参看","id":""}],"text":"","id":"HoymdmuGiocUiExgVgicDvQJn2b"},{"type":"image","attrs":{"height":306,"note":[{"type":"text","text":"长元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/11401e7cc5bc444dbe441c1675fed41f","width":451},"text":"","id":"Jwu8dI462oaeoYx2YiTciWTqnvE"},{"type":"paragraph","children":[{"type":"text","text":"（2）/ɜ:/发音技巧：","id":""}],"text":"","id":"Ts2qdA6SgoseSMxKkuqcBll6nug"},{"type":"paragraph","children":[{"type":"text","text":"/ɜ:/是长元音，近似于北京腔的“儿”话音，如“花儿”的“儿”。发好这个音，关键在于卷舌！","id":""}],"text":"","id":"OYYudyQECoAUWCxAXCXcpSQNnwb"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：shirt [ʃə:t] n. 衬衫,男士衬衫；nurse [nə:s] n. 护士,保姆","id":""}],"text":"","id":"COSGdekU0o4gUuxMXnMcC6pCn2c"},{"type":"image","attrs":{"height":377,"note":[{"type":"text","text":"长元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/623ec09f755c4250bf94380ee9544915","width":562},"text":"","id":"FCiYdGaciomUW2xG0SicnSgFnLd"},{"type":"paragraph","children":[{"type":"text","text":"（3）/u:/发音技巧","id":""}],"text":"","id":"PWOIdEuS2o0WmaxWew6cVNb0nEf"},{"type":"paragraph","children":[{"type":"text","text":"发这个音时双唇用力向前突出，有点像拉长了音说“乌”，但要注意，“乌”的口形较扁。","id":""}],"text":"","id":"KGkEdI2kMos20Ox2r4qcCFyXnnc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：moon [mu:n] n. 月球,月亮；room [ruːm] n. 房间,空间","id":""}],"text":"","id":"Esasd8QoioyssQxkPtKc5kBmnJc"},{"type":"image","attrs":{"height":301,"note":[{"type":"text","text":"长元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/fe82dde826ae4239afa4b48ffe8b0c42","width":453},"text":"","id":"RKWId4Ca4og0QexmwWYcZ2TOnAg"},{"type":"paragraph","children":[{"type":"text","text":"（4）/a:/发音技巧","id":""}],"text":"","id":"TAmEdomGco0mmmxMBcic5uLqnaf"},{"type":"paragraph","children":[{"type":"text","text":"发音时口张大，双唇稍收圆。发音时可以照着镜子，说“啊”，看看嘴巴张得够不够大，记得要将嘴巴尽量张大。","id":""}],"text":"","id":"TSYadWSEcooYEQxIUAjct9vnnFJ"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：ask [a:sk] v. 问,询问； far [fa:r] adj. 远的","id":""}],"text":"","id":"YAQsdCAoGosGOqxQt5octrTLnYc"},{"type":"image","attrs":{"height":273,"note":[{"type":"text","text":"长元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/025ef979d9624dbc88706798e493e87b","width":454},"text":"","id":"JsAodyMG4oaAWUx0eNaclgPRnU7"},{"type":"paragraph","children":[{"type":"text","text":"（5）/ɔ:/发音技巧","id":""}],"text":"","id":"VyMWdKGuYouWEGxCWxVch2RmnXg"},{"type":"paragraph","children":[{"type":"text","text":"发这个音时，双唇稍稍收圆，并向前突出，发音接近于汉语“嗷”。这是个长元音，记住：长元音一定要拉长，发出来才好听。","id":""}],"text":"","id":"MgM2dcYGCo46QcxQbwMc94Nynih"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：door [dɔ:r] n. 门； short [ʃɔ:t] adj. 短的","id":""}],"text":"","id":"LgscdccICoGgwaxKaJWc1SyKnIh"},{"type":"image","attrs":{"height":276,"note":[{"type":"text","text":"长元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/d7a38edc116f4856b5a9593f720e724d","width":450},"text":"","id":"Ho4YdSGgcoUyQqxmgKhctGE7nkd"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"短元音","id":""}],"text":"","id":"G0wOd0uowoAm6exEjRdcgKeDnJd"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习短元音发音。《【【英语音标7个短元音/ʌ/ /ɒ/ /ə/ /ɪ/ /ʊ/ /e/ /æ/怎么读？】-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/fo9Bd5E"},"children":[{"type":"text","text":"https://b23.tv/fo9Bd5E","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"WUQIdyWAoo6YMexciCLc5g4mnfx"},{"type":"paragraph","children":[{"type":"text","text":"7个短元音：/i/、/ə/、 /ɔ/、/u/、/ʌ/、/e/、/æ/","id":""}],"text":"","id":"JQe8de0WgoW4WIxIf6EcSf5Jn8g"},{"type":"paragraph","children":[{"type":"text","text":"（1）/i/发音技巧","id":""}],"text":"","id":"OeiSdAac6oeg4QxICt4cMrZ1ngb"},{"type":"paragraph","children":[{"type":"text","text":"它是个短元音，发音要短促而轻快。","id":""}],"text":"","id":"KyOcdmKcYo2yg0xc9CLchnc0nFg"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：big [bɪɡ] adj. 大的,庞大的；Fit [fit] v. 合身,适合于","id":""}],"text":"","id":"Peq6dMSKAoKMiex85ZpcCHMwn8c"},{"type":"image","attrs":{"height":282,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/7490f86fa2e840c7822c7a8652cc3b59","width":454},"text":"","id":"Jg8qd0SAGoaqQYxWG62cTGd0nJc"},{"type":"paragraph","children":[{"type":"text","text":"（2）/ə/发音技巧","id":""}],"text":"","id":"Yi4gdOOSwoqi4ixUPCxcr7dTn8N"},{"type":"paragraph","children":[{"type":"text","text":"发音时舌身平放，双唇扁平。发这个音时不用卷舌。","id":""}],"text":"","id":"QSWGdgm2wokq4uxaoSxc9pQNnAc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：teacher [ˈtiːtʃə] n. 老师,教师； mother [ˈmʌðə] n. 母亲","id":""}],"text":"","id":"N600dqWCioIGAexsDGtcikolnSc"},{"type":"image","attrs":{"height":285,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/fc5b84b799c543ba81a17ef6447d69b3","width":451},"text":"","id":"Zicodsi0aoGSMcxMFmhcGojin4b"},{"type":"paragraph","children":[{"type":"text","text":"（3）/ɔ","id":""},{"type":"text","marks":[{"type":"strong"}],"text":"/ ","id":""},{"type":"text","text":"发音技巧","id":""}],"text":"","id":"Cwu6dsy0ioSIoQxQ3McctItdnoc"},{"type":"paragraph","children":[{"type":"text","text":"这是一个短元音，发音一定要短，发音比/ɔ:/短一些，双唇稍稍收圆，并向前突出。","id":""}],"text":"","id":"B40SdEqGeommYaxUVmkcbAFunof"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：dog [dɔg] n.狗,家伙；hot [hɔt] adj. 热的,辣的","id":""}],"text":"","id":"E6OQdeMYeo8kqAxQFP0cUzhtnQf"},{"type":"paragraph","children":[{"type":"text","text":"（4）/u/ 发音技巧","id":""}],"text":"","id":"MkEMdeuwcoUMQMx2jfDcSL1Lnle"},{"type":"paragraph","children":[{"type":"text","text":"发音时双唇收圆，稍突出。就像发汉语中的“乌”，但没发完就给打断了一样。","id":""}],"text":"","id":"NUQadG2AOoyQiqxovbfcN5hMnSg"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：book [bʊk] n. 书,卷；cook [kʊk] vt. 烹调,煮","id":""}],"text":"","id":"XiW4dUI0WoeWYaxmgclczYA7nSc"},{"type":"image","attrs":{"height":318,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/a926c1aa6d5d4ce79c0d19c2159ce98e","width":454},"text":"","id":"QGcAdYE6MomYUMxuiFcciKOwnKf"},{"type":"paragraph","children":[{"type":"text","text":"（5）/ʌ/ 发音技巧","id":""}],"text":"","id":"QemKd0uQoogOGqx0yTfccRfnnVf"},{"type":"paragraph","children":[{"type":"text","text":"发音时舌尖和舌端两侧轻触下齿，唇形稍扁，开口度较大。这个发音有点像发“啊”音时突然被谁卡住了脖子的感觉。","id":""}],"text":"","id":"RQgydeee4ogWwyxgJKecse67nsf"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：brother['brʌðə(r)] n. 哥哥，弟弟；mother [ˈmʌðə] n. 母亲","id":""}],"text":"","id":"W8i8des8kowCQaxCkeRcyQO0nMc"},{"type":"image","attrs":{"height":282,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/1518aaa5800744e6bc885be81174da0d","width":458},"text":"","id":"WMWQdCSuEoUWmExgHZKcmgz1nhb"},{"type":"paragraph","children":[{"type":"text","text":"（6）/e/发音技巧","id":""}],"text":"","id":"HqQmdo8KCoky4ex6tkXch12DnFb"},{"type":"paragraph","children":[{"type":"text","text":"发音时舌尖抵下齿，舌前部稍抬起，上下嘴张开的角度大约呈“45度”，同时发出声音。","id":""}],"text":"","id":"HESCdsQuMo60Eox6PwLcFLN7nkc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：leg [leg] v. n. 腿,支柱； desk [desk] n. 书桌","id":""}],"text":"","id":"UMEmdEuiQoOm8IxWKmhchZ3dnqc"},{"type":"image","attrs":{"height":302,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/b3fa4d978e4b447488f631be293165b8","width":451},"text":"","id":"HCSudscUeo2WQexw5h8cEy3znSe"},{"type":"paragraph","children":[{"type":"text","text":"（7）/æ/发音技巧","id":""}],"text":"","id":"FIIOdWuQsoIIwCx4gLAcOprtnje"},{"type":"paragraph","children":[{"type":"text","text":"发音时，双唇向两边平伸，张开嘴，嘴唇放松逐渐压低舌头7和下颚，尽可能夸张。","id":""}],"text":"","id":"ZSsydKw6AoE0QuxERwUcI26KnUh"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：bad [bæd] ：adj. 坏的,不好的；cat [kæt] ：n. 猫，猫科动物","id":""}],"text":"","id":"SUkcdksC2osc46xkfiqcMmwtnqe"},{"type":"image","attrs":{"height":286,"note":[{"type":"text","text":"短元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/13ef5be403e1446dab200bb2319308db","width":455},"text":"","id":"RyKKdYucIoyoaExSGXwcBg0wnGh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"双元音","id":""}],"text":"","id":"EaaodueAEo268SxMxKfcNGngnFf"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习双元音发音。《【【英语基础】英语国际音标-8个双元音的发音-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/VQsPDdl"},"children":[{"type":"text","text":"https://b23.tv/VQsPDdl","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"BsecdiMMYoke62xG0Lkcik9snKc"},{"type":"paragraph","children":[{"type":"text","text":"8个双元音发音技巧：/eɪ/、/aɪ/、/ɔɪ/、/ɪə/、/eə/、/ʊə/、/əʊ/、/aʊ/","id":""}],"text":"","id":"UUoSdueMqoIYkAxgdQTcnBxBnXg"},{"type":"paragraph","children":[{"type":"text","text":"（1）/eɪ/发音技巧","id":""}],"text":"","id":"SyYCdiUwooQQuKxUDZccsKHLnfg"},{"type":"paragraph","children":[{"type":"text","text":"该音是个双元音，发音时双唇稍扁，口形从半开到合。类似于英文字母“A”。","id":""}],"text":"","id":"ZKEwdAkUGoA4iIxpX5EcLq3KnrH"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：say[sei] v.说；delay[diˈlei] n. 延迟 ","id":""}],"text":"","id":"CIIgdCuUeooCKwxmEuZcCv12nGe"},{"type":"image","attrs":{"height":265,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/5dfd6e9e53684a9598530475e2d96126","width":457},"text":"","id":"OsecdEcOyomEsExG25jccuksnHg"},{"type":"paragraph","children":[{"type":"text","text":"（2）/aɪ/发音技巧","id":""}],"text":"","id":"KwScdKWUuo4koyx8zIlcnspPnKc"},{"type":"paragraph","children":[{"type":"text","text":"发此音的关键是要把/a/音发足，接近于英文字母中的“I”。","id":""}],"text":"","id":"UguSdq8McoMegMxgrkfc5oKfn5b"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：ice  [ais] n. 冰，雪糕；side [said] n. 面，边","id":""}],"text":"","id":"HIYQdm4KkocmioxVAXPcjTFInvy"},{"type":"image","attrs":{"height":303,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/1fac52f81d3e43b4ad93559d84c6e4fd","width":452},"text":"","id":"GW2id2oWuoywqex6iJZcG5KXnWh"},{"type":"paragraph","children":[{"type":"text","text":"（3）/ɔɪ/发音技巧","id":""}],"text":"","id":"AOWIdIc8moigIixsbHIckhi8n5G"},{"type":"paragraph","children":[{"type":"text","text":"发音时双唇从圆到扁，口形从开到合。接近于汉语发音“奥一”","id":""},{"type":"text","marks":[{"type":"strong"}],"text":"。","id":""}],"text":"","id":"FSw4ducquoQKMuxMtIScMy4wnWd"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：oil  [ɔil] n. 油，石油；noise [nɔɪz] n. 噪音，嘈杂声","id":""}],"text":"","id":"LW2od6qk0oqyU4x8qOAczdchnCc"},{"type":"image","attrs":{"height":302,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/9307e1ed689946e9bd14a681c5b78d92","width":448},"text":"","id":"WMKUd2wgKoIQ6uxQbA9cgGWindd"},{"type":"paragraph","children":[{"type":"text","text":"（4）/ɪə/发音技巧","id":""}],"text":"","id":"Cae2duCEsoem4yxA3tvc0cmdnCf"},{"type":"paragraph","children":[{"type":"text","text":"发声时，由第一个音[i]向[ə]集中，接近于汉语发音“一呃”。","id":""}],"text":"","id":"C68Md8ms8ociOqxWGiVcBAMJnEe"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：fear   [fɪər] ：n. 害怕，可能性；dear   [dɪər] ：adj. 亲爱的","id":""}],"text":"","id":"Eawkdmem6owIQYxisRVcS3Ljnce"},{"type":"image","attrs":{"height":306,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/4aecdc72dc8d4a52a355153570863ecb","width":449},"text":"","id":"UQCadEEogosc0cxCAiZcP9D0nme"},{"type":"paragraph","children":[{"type":"text","text":"（5）/eə/发音技巧","id":""}],"text":"","id":"Es8ydgUYyoW0UGx0u3PcNSMZnzc"},{"type":"paragraph","children":[{"type":"text","text":"接近于汉语发音“哎呃”。","id":""}],"text":"","id":"I42OdKEEso2AYKxwDFhc15xGnPh"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：bear  [bɛə] ：n. 熊；wear  [wɛə] ：vt. 穿着","id":""}],"text":"","id":"Mi4GdQ4cooIqGGxWszQcP7P6nUb"},{"type":"image","attrs":{"height":301,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/80a62f63b71d441fab8b7b937db156b5","width":455},"text":"","id":"WKgEdmMEeooMAGxraS2cKlFNnzp"},{"type":"paragraph","children":[{"type":"text","text":"（6）/ʊə/发音技巧","id":""}],"text":"","id":"JYs6des4GosOg2xWIw7c5U11nBc"},{"type":"paragraph","children":[{"type":"text","text":"第一个是“短乌音”/u/，第二个是/ə/。类似于汉语发音“屋呃”。","id":""}],"text":"","id":"Qgsgdw2qgoa6WSx2zPjcHHBLnSf"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：sure [ʃʊər] adj. 确信的，确实的；pure  [pjʊər] adj. 纯的； 单纯的","id":""}],"text":"","id":"IqQidGY8uou04vxQr5ucq8izn2T"},{"type":"image","attrs":{"height":338,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/c63377faff584578850c4f931e0964a4","width":500},"text":"","id":"G2Uod4AO2oA0yuxOgbYcsRAUnbg"},{"type":"paragraph","children":[{"type":"text","text":"（7）/əʊ/发音技巧","id":""}],"text":"","id":"AKMadGucOoaaGIxQFbicoXY5n6b"},{"type":"paragraph","children":[{"type":"text","text":"舌位由半低到高，口形由半开到小。接近于汉语发音“呃屋”。","id":""}],"text":"","id":"KkSUdWMwwo4CE8xKwmhcnBqwnyc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例： flow  [fləu] ：vi. 流；glow   [ɡləʊ] ：vi. 发光，灼热","id":""}],"text":"","id":"BKa0dKw0qoIKk2xYZC6cRR28n5b"},{"type":"image","attrs":{"height":305,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/02a605adae3540e89ce2893523886858","width":451},"text":"","id":"NM2wdK6S2oeIQYxCgOxcYt4snue"},{"type":"paragraph","children":[{"type":"text","text":"（8）/aʊ/发音技巧","id":""}],"text":"","id":"V4eedMomYoYYUUx8kmacWlySn9b"},{"type":"paragraph","children":[{"type":"text","text":"由第一个音向第二个音滑动，接近于汉语发音“啊屋”。","id":""}],"text":"","id":"Kuy8dSgWgoKKG0xlGmGcJFU1nm7"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：cow [kaʊ] n. 奶牛，乳牛；hour [aʊər] n. 小时，钟头","id":""}],"text":"","id":"EG88doWaio0GUwx0M5Yc3mtvnwb"},{"type":"image","attrs":{"height":336,"note":[{"type":"text","text":"双元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/1955882da7c54a7d936a2a26325b2b9c","width":500},"text":"","id":"V04od2GkKokq6WxuazbctmCGnmh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"辅音","id":""}],"text":"","id":"PiwcdwQISoMwgsx0yFucrIYUnih"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习辅音发音。《【英语音标（辅音部分），发音规则与技巧！美式发音，地道口语！清辅音，浊辅音！初级，零基础，欢迎新手！-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/dCgZVAA"},"children":[{"type":"text","text":"https://b23.tv/dCgZVAA","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"DAMod2AYQoGwMYxmm7pcZVEgnRd"},{"type":"paragraph","children":[{"type":"text","text":"11个清辅音 /p/ /t/ /k/ /f/ /θ/ /s/ /ʃ/ /ts/ /tʃ/ /tr/ /h/","id":""}],"text":"","id":"JY04deUyUo4SOIx00V9cNrjgn2e"},{"type":"paragraph","children":[{"type":"text","text":"11个浊辅音 /b/ /d/ /g/ /v/ /ð/ /z/ /ʒ/ /dz/ /dʒ/ /dr/ /r/","id":""}],"text":"","id":"Aya6dI06WoYGm0xgFG8cd2RWnVd"},{"type":"paragraph","children":[{"type":"text","text":"注意：","id":""}],"text":"","id":"DCAKdYKa6o6CskxSKjOcMmqYnxe"},{"type":"paragraph","children":[{"type":"text","text":"清辅音：发音时送气，声带不颤动（颤不颤用手放在喉咙上就知道了）","id":""}],"text":"","id":"V4c8d0oaKoiiasxSJbIc3Phpn8z"},{"type":"paragraph","children":[{"type":"text","text":"浊辅音：发音时不送气(拿张纸放在嘴前，纸没有被吹开)，声带颤动。","id":""}],"text":"","id":"C6msd8Wsao4MCox3aGXchxhTnit"},{"type":"paragraph","children":[{"type":"text","text":"（1）/p/ /b/谐音分别为“普”、“卜”，都省去韵母成分","id":""}],"text":"","id":"WqgqdeYCwoquUGxIpR6cp8i9n6b"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：/p/是清辅音，声带不振动；/b/是浊辅音，声带振动。","id":""}],"text":"","id":"Q2iUduAywo0QcsxAPIvcauRYn1e"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/p/：pen [pen] n.钢笔；pin [pin] n.大头针","id":""}],"text":"","id":"I6YGdymweowsukxi0Chcjet4nbe"},{"type":"paragraph","children":[{"type":"text","text":"/b/：bike [baik] n.自行车；beg [beg] v.乞求","id":""}],"text":"","id":"IukEd2acUomqsix61ZlcYRZgntc"},{"type":"imageList","children":[{"type":"image","attrs":{"height":291,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/606b063e5abc4abda1a64a5bcd15ed33","width":453},"text":"","id":"GAAodsy42oGcEOxqesecgGainDg"},{"type":"image","attrs":{"height":279,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/62b2c2ff83cd446e913fc3894b60f5ed","width":453},"text":"","id":"LocqdA2WqoWwOmx4iqoc1Co1nzd"}],"text":"","id":"OUu0dw0IUoCAoKxWuwQcERpSn2g"},{"type":"paragraph","children":[{"type":"text","text":"（2）/t/ /d/分别谐音“特”、“得”。","id":""}],"text":"","id":"OUu0dw0IUoCAoKxWuwQcERpSn2g"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：/t/是清辅音，声带不振动；/d/是浊辅音，声带振动。","id":""}],"text":"","id":"WqgudmymyoWeMyxG4qAcXd5Nn3f"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/t/ ：ten [ten] num； test [test] n. 试验, 考验","id":""}],"text":"","id":"CmCsdscSUougQExs3LHcC6Yvnxc"},{"type":"paragraph","children":[{"type":"text","text":"/d/： student [ˈstudnt]  n.学生； date  [deɪt] n.日期、日子、约见时间 v.注明日期、写上日期","id":""}],"text":"","id":"QEwYdeUuqoceaWxmGpgcCQRAnaf"},{"type":"imageList","children":[{"type":"image","attrs":{"height":285,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/a42294e34f854b1db31a0c38ef37302c","width":450},"text":"","id":"Q8KYdagoIo4k20x8FBYcKkY5ng9"},{"type":"image","attrs":{"height":303,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/904cd5e38687477288a3126fcc4f1018","width":454},"text":"","id":"EOGSdg44io6MwMxwFg2cxsvAnPf"}],"text":"","id":"DQQedqwyMooIEkxIKJIcVruHnlb"},{"type":"paragraph","children":[{"type":"text","text":"（3）/k/ /g/分别谐音“可”、“嗝”。","id":""}],"text":"","id":"DQQedqwyMooIEkxIKJIcVruHnlb"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时舌后部隆起紧贴软颚，憋住气，然后突然分开，气流送出口腔，形成爆破音。/k/是清辅音，声带不要振动；/g/是浊辅音，声带需要振动。","id":""}],"text":"","id":"CiO0dy8SCoiem2xKge6ccUbyn7e"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/k/ ：kite [kait] n. 风筝；cake [keɪk] n. 蛋糕","id":""}],"text":"","id":"FUQodyeyyoWuQAx2JGYcZNT1nqd"},{"type":"paragraph","children":[{"type":"text","text":"/g/： glove [ɡlʌv] n. 手套；girl [ɡə:l] n. 女孩","id":""}],"text":"","id":"AQIOdQAAIoSki6xy8ITcIpXtnmh"},{"type":"imageList","children":[{"type":"image","attrs":{"height":305,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/14d7ac9a6f4f404893f06bdabb1aa226","width":490},"text":"","id":"Emi6dSeEKo2WoixmcDrcz6VHnU6"},{"type":"image","attrs":{"height":304,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/06964c4beb5c4fce98d2def6ba8ebbca","width":493},"text":"","id":"DYMkdcSk4oSS0AxYncocwbmfnZc"}],"text":"","id":"DySedIAYgoKsywxoVI4cNSDinKe"},{"type":"paragraph","children":[{"type":"text","text":"（4）/f/ /v/","id":""}],"text":"","id":"DySedIAYgoKsywxoVI4cNSDinKe"},{"type":"paragraph","children":[{"type":"text","text":"/f/谐音“府”，/v/就是北方人把W读成V那种感觉。","id":""}],"text":"","id":"ISoKdAUgYoGIyExI5y6cPFHfnPh"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音前，上齿咬住下嘴唇，然后使气流由唇齿间的缝隙中通过，从而引起摩擦。","id":""}],"text":"","id":"RM62de2eqoAkcixAxO3c7o2nn2b"},{"type":"paragraph","children":[{"type":"text","text":"/f/是清辅音，发音时声带不震动；/v/是浊辅音，发音时声带振动。","id":""}],"text":"","id":"AGkSdk02UoUYoqx87ogcwnwpnPf"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/f/：flower ['flaʊər] n. 花；fly [flai] vi.飞, 飞行","id":""}],"text":"","id":"DmI8dMaAyocKYixCAJOcvEDznmb"},{"type":"paragraph","children":[{"type":"text","text":"/v/：love [lʌv] v. 爱；seven [ˈsevən] num. 七","id":""}],"text":"","id":"CaQOdgSIQogyCOxO4sGcBbGqnkg"},{"type":"imageList","children":[{"type":"image","attrs":{"height":307,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8ce3c52756514e448ddc1d518e55ecdf","width":450},"text":"","id":"Pam6duQkAoyQ6Oxq6dwcgin7nTe"},{"type":"image","attrs":{"height":307,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/0d517eafc9904db59404a654d6aabfd9","width":499},"text":"","id":"A6ugd446kocAo6xgNYQcDw1hnId"}],"text":"","id":"XICgdYG6eowkcoxiK6zcQDIVn3f"},{"type":"paragraph","children":[{"type":"text","text":"(5)/θ/ /ð/ 牙齿轻咬舌尖发出的音","id":""}],"text":"","id":"XICgdYG6eowkcoxiK6zcQDIVn3f"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时，舌尖微微伸出，置于上下门齿之间，舌尖和下齿之间的气流通道非常窄小，气流从舌齿间的窄缝中通过。/θ/是清辅音，发音时声带不振动；/ð/是浊辅音，发音时声带振动。","id":""}],"text":"","id":"XmG0de0CookKwKxgJVJctctcnbc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/θ/：three [θri:] num. 三； throw [θrəʊ] vi. 投掷","id":""}],"text":"","id":"BQUadqEywoMcs2xEtzIc5zkmnfb"},{"type":"paragraph","children":[{"type":"text","text":"/ð/：this [ðɪs] pron. 这,这个，这里； mother [ˈmʌðə(r)] n. 母亲","id":""}],"text":"","id":"NGMedc0I2oEIOEx6qDWc6Ca4nwg"},{"type":"imageList","children":[{"type":"image","attrs":{"height":430,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/50168da9a42b477395fa447a59aadf00","width":640},"text":"","id":"TS0MdAOiIoWak2x4Fr2cXJLRneg"},{"type":"image","attrs":{"height":250,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/fe852c5bda9443b4b98bcb1ed73950ab","width":456},"text":"","id":"Y6o6dYI68oOO4ixYzmUcUdwlnHg"}],"text":"","id":"MCEgdOoEkoUE2qxAtnfcviE7nSg"},{"type":"paragraph","children":[{"type":"text","text":"(6)/s/ 谐音“丝”，/z/“zi”","id":""}],"text":"","id":"MCEgdOoEkoUE2qxAtnfcviE7nSg"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时舌端靠近齿龈，气流由舌端齿龈间送出。/s/是清辅音，声带不振动；/z/是浊浦音，声带振动。","id":""}],"text":"","id":"MiYMdEsIcom0uoxgfRFcbXodnAg"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/s/：school [sku:l] n. 学校，学院；bus [bʌs] n. 公共汽车","id":""}],"text":"","id":"WO6kd6cMWoAM02xGkWKc7Bunnnc"},{"type":"paragraph","children":[{"type":"text","text":"/z/：please [pli:z] int.请；zoo [zu:] n.动物园","id":""}],"text":"","id":"IgmKdaGiooyg8ExgVM2cEGJAnoh"},{"type":"imageList","children":[{"type":"image","attrs":{"height":271,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/9a735a6fd556430899e72f213603429c","width":453},"text":"","id":"IYIEdaM6co0Mo6xsd9CcEcfGnrf"},{"type":"image","attrs":{"height":217,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/cbd3bbe2132a47e09a970ca158685fd7","width":454},"text":"","id":"S6C8duMs0omqiKxkfZncVmJSnIb"}],"text":"","id":"RKu4dWEeIo4Og6xqiP7cXVdwnKb"},{"type":"paragraph","children":[{"type":"text","text":"(7)/ts/ /dz/分别谐音“次”、“自”","id":""}],"text":"","id":"RKu4dWEeIo4Og6xqiP7cXVdwnKb"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：舌端先贴住上齿龈，堵住气流，气流送出口腔。/ts/是清辅音，声带不振动，/dz/是浊辅音，声带振动。","id":""}],"text":"","id":"Wu2AdkuSioKeekxGWiWcUNN1nFf"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/ts/：cats [kæts] n. 猫( cat的名词复数 )；hats [hæts] n. 帽子( hat的名词复数 ) ","id":""}],"text":"","id":"DOksdQsWUoKGA2xETz0chmFantf"},{"type":"paragraph","children":[{"type":"text","text":"/dz/：hands [hændz] n.手；lands [lændz] n.陆地","id":""}],"text":"","id":"CMmSdKgc0oK828xcVxeci6yGnOg"},{"type":"imageList","children":[{"type":"image","attrs":{"height":289,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8fdc13488fbc4d59a98f9f0713aefe7c","width":450},"text":"","id":"P8KydWaQYo8qWUxQppkc4qdhngb"},{"type":"image","attrs":{"height":276,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/7c7a93711b0e46cc83a527c60d527179","width":451},"text":"","id":"PkmQd6QMeoIcCIxoQSfcvdqVnmb"}],"text":"","id":"Ng8qda44kouo0UxWAN2cpPcpnkb"},{"type":"paragraph","children":[{"type":"text","text":"(8)/tr/ /dr/分别谐音“戳”、“捉”","id":""}],"text":"","id":"Ng8qda44kouo0UxWAN2cpPcpnkb"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：舌尖贴齿龈后部，气流冲破阻碍发出短促的/t/后立即发/r/。/tr/是清辅音，声带不振动；/dr/是浊辅音，声带振动。","id":""}],"text":"","id":"GSKsdMQi0o82OexWotqcSV0KnVc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/tr/ : tree [tri:] n. 树，木料；try [traɪ] vt.\u0026 vi. 试图 ","id":""}],"text":"","id":"GGkKdsqAqo0C8WxqIJucE48Anzb"},{"type":"paragraph","children":[{"type":"text","text":"/dr/：dress [dres] n.连衣裙；drink [drɪŋk] v.喝酒","id":""}],"text":"","id":"HcYWdO6moomiWCxi6X3c322tnUe"},{"type":"imageList","children":[{"type":"image","attrs":{"height":306,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8cd7b6ea3573404d915c2b39fdd668ad","width":454},"text":"","id":"Vg4UdMsoWosWm6xmPRjcCCNMnyQ"},{"type":"image","attrs":{"height":296,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/700de1de8f2b402893d73b6fd25b5342","width":452},"text":"","id":"OsM4dSIkIouswGxiw7LcHHrMnjb"}],"text":"","id":"JSaEd8UAsoau4axA33tcPSTUnLe"},{"type":"paragraph","children":[{"type":"text","text":"(9)/∫/ /ʒ/分别谐音“诗”、“日”","id":""}],"text":"","id":"JSaEd8UAsoau4axA33tcPSTUnLe"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：/∫/是清辅音，声带不振动；/ʒ/是浊辅音，声带振动。","id":""}],"text":"","id":"PKmAda0ceooIAExiq07crsVtnid"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/∫/：English [ˈɪŋglɪʃ] adj. 英格兰的； 英国的；rubbish [ˈrʌbɪʃ] n. 垃圾；","id":""}],"text":"","id":"FGIidicIkoCGCKxKo0PcQBYlnhd"},{"type":"paragraph","children":[{"type":"text","text":"/ʒ/：pleasure [ˈpleʒə] n.快乐，愉快；casual [ˈkæʒuəl] adj意外的，偶然的","id":""}],"text":"","id":"MwwIdAKiooqy2Cxak94c5PDbnGg"},{"type":"imageList","children":[{"type":"image","attrs":{"height":285,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8f332b0d40c74d34ae86cb1fa3ca05e7","width":454},"text":"","id":"DwsYdMccsog0iYxISsfcHUVinNH"},{"type":"image","attrs":{"height":228,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f540e592612a4386a861f7ad67e4073c","width":453},"text":"","id":"ISiYdkQoGoGQe0xKa7JcQsU3n3d"}],"text":"","id":"SMc2d28g4oE0muxS4CIcteUNn3b"},{"type":"paragraph","children":[{"type":"text","text":"（10）/t∫/ /dʒ/分别谐音“吃”、“之”","id":""}],"text":"","id":"SMc2d28g4oE0muxS4CIcteUNn3b"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时舌身抬高，舌端抵上齿龈后部，气流通过时发出破擦音。/t∫/是清辅音，声带不振动；/dʒ/是浊辅音，声带振动。","id":""}],"text":"","id":"U0gWdO4iMoCAaoxYfM3cC5m6n7b"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：/t∫/： chalk [tʃɔ:k] n. 粉笔；chair [tʃeər] n. 椅子","id":""}],"text":"","id":"NK0ydWy0SoseSyxGoJMcJWW5nLd"},{"type":"paragraph","children":[{"type":"text","text":"/dʒ/：page [peɪdʒ] n.页 ；age [eɪdʒ] n.年龄","id":""}],"text":"","id":"OEesduWwUowgWuxm4gJcL9gGnuc"},{"type":"imageList","children":[{"type":"image","attrs":{"height":277,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/8b628a6b1e514fe0b391ed64c1367954","width":454},"text":"","id":"V86EdgUKGoouEOxqclNcNjX5nCh"},{"type":"image","attrs":{"height":267,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6d921b622ffa4a38a273f436986ea872","width":445},"text":"","id":"VIo0dGc4yoCimMxU5WBcTgQNnSb"}],"text":"","id":"E0eYdWCA2oa2Q8xADQhcjsCsnVh"},{"type":"paragraph","children":[{"type":"text","text":"(11)/h/ /r/分别谐音“呵”、“若”，省去韵母成分。","id":""}],"text":"","id":"E0eYdWCA2oa2Q8xADQhcjsCsnVh"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：","id":""}],"text":"","id":"M04md204koiKaQxcjQPccMzznXf"},{"type":"paragraph","children":[{"type":"text","text":"发/h/这个音时，嘴半开，气流从口腔不受阻碍而出，声带不振动，清辅音。","id":""}],"text":"","id":"K6Kidis8moccGAxjkUjcGKHMncS"},{"type":"paragraph","children":[{"type":"text","text":"发/r/这个音时，舌端上卷，靠近上齿龈附近，嘴唇张开并保持略圆状态，气流从口腔涌出，声带振动，属于浊辅音。","id":""}],"text":"","id":"Skk8dmsmoog2KwxWIvucX2Yvnyh"},{"type":"paragraph","children":[{"type":"text","text":"单词举例: /h/： hair [heə(r)] n.头发；hate [heɪt] v.恨，厌恶","id":""}],"text":"","id":"FeIKdecMEoOEEsxC2MDcxzKenug"},{"type":"paragraph","children":[{"type":"text","text":"/r/： sorry ['sɒrɪ] v.对不起 ；write [raɪt] v.写","id":""}],"text":"","id":"AmKEdA6O2oMuaCxQ3hLc0Vauneh"},{"type":"imageList","children":[{"type":"image","attrs":{"height":285,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/ae68233a2f1f4e0bae1ada1aafa601b2","width":455},"text":"","id":"B2IgdUQ0AoYG6wxYVJccq7VMnag"},{"type":"image","attrs":{"height":690,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/b5bc0da8fe7f4de1b056a6e261a0535d","width":1024},"text":"","id":"FoGadAwoIoQ8iux6WegcTMzCnlb"}],"text":"","id":"Tgm6dmyKQoWAASxyMtHcwHwxnwf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"鼻音","id":""}],"text":"","id":"Tgm6dmyKQoWAASxyMtHcwHwxnwf"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习鼻音发音。《【（21）鼻音 m n ŋ | 英语音标发音口型示范 | 美式发音-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/8P1jfXx"},"children":[{"type":"text","text":"https://b23.tv/8P1jfXx","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"QsmOdYKyAoKyYgxct1YcwrFxnof"},{"type":"paragraph","children":[{"type":"text","text":"(1)/m/谐音“恩”","id":""}],"text":"","id":"GAAmd86QgomQgmxaa0LcUWtJn8c"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：双唇紧闭，软腭下垂，气流从鼻腔发出，声带震动。闭口音。","id":""}],"text":"","id":"Ws8udoA2soaccyxaUb3cYEJCnkf"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：major [ˈmeɪdʒə(r)] adj.主要的；time [taɪm] n.时间","id":""}],"text":"","id":"NGuudoKUeogKgKxS8ZUcakUsnYg"},{"type":"image","attrs":{"height":275,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f85c67957ccc46bdaa291f21c4945bbf","width":453},"text":"","id":"JSAAdM6wSo6uSUxQzE5cb42LnQd"},{"type":"paragraph","children":[{"type":"text","text":"(2)/n/谐音“呢”","id":""}],"text":"","id":"MsCId8QaAou0OwxCavicqQUSnLh"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：舌尖顶住上齿龈，形成阻碍，气流从鼻腔发出，同时声带震动，开口音。","id":""}],"text":"","id":"E2GAdKKSGoCuWIxQdrXctfW6nvh"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：nice [naɪc] adj.漂亮的；funny [ˈfʌni] adj.有趣的","id":""}],"text":"","id":"MysCdSuOeoeK8ixaugKcDN72nUf"},{"type":"image","attrs":{"height":302,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/cf6bbf9b230c4ba385b68bf46687dc48","width":449},"text":"","id":"IKM0duY8Go6u4CxkBlucRm0XnPh"},{"type":"paragraph","children":[{"type":"text","text":"(3)/ŋ/谐音“英”，省去声母部分","id":""}],"text":"","id":"WcoodGMkwoI2YGxIP4ucIJsAnRC"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时气流从鼻腔涌出，声带振动。","id":""}],"text":"","id":"UWcSd6OUCoq0a8xAV9sc88PznPg"},{"type":"paragraph","children":[{"type":"text","text":"单词举例： think [θɪŋk] v.想；angel [ˈeɪndʒl] n.天使","id":""}],"text":"","id":"I6YIdO2o0o8w2Ax5e5RcRshSnn9"},{"type":"image","attrs":{"height":281,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/9be0385b2e8b48298d7c1f70fbddcfcd","width":453},"text":"","id":"Ng62d6MoOo82sUx6k4VcQMB9nYf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"边音","id":""}],"text":"","id":"HuSIdwyEkoMIqCxotU0cFfxbnNb"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习边音发音。《【真正的国际音标-边音 Lateral-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/G9C7X9F"},"children":[{"type":"text","text":"https://b23.tv/G9C7X9F","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"C8uCdoCuco8aeGxkXIScGUjtnme"},{"type":"paragraph","children":[{"type":"text","text":"/l/谐音“里”","id":""}],"text":"","id":"EkeKdas6eoQ8msxawD1cdzE7n6f"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：舌尖顶住上齿龈，发音时气流从舌面的两侧通过，声带保持震动，属于浊辅音。","id":""}],"text":"","id":"RIWkd0eeuoiCGqx6rikckQCtnld"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：light [laɪt] n.光线 ；ball [bɔ:l] n.球","id":""}],"text":"","id":"CuIodIW6goAcIExgblmcWFXXnah"},{"type":"image","attrs":{"height":260,"note":[{"type":"text","text":"边音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/c8a9eb0ff3c3438e80e649b07a85be15","width":456},"text":"","id":"MoWedis4SokU8cxGSwecIsV7nTh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"半元音","id":""}],"text":"","id":"FOUWdOmoioWWUOxSKvHcytrEnig"},{"type":"paragraph","children":[{"type":"text","text":"点击这个视频学习半元音发音。《【BBC英语 其他辅音 半元音'w'的发音 与'v'的区别 国际音标发音｜Pronunciation Tips 34 - Other Consonant-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/fC2pYDl"},"children":[{"type":"text","text":"https://b23.tv/fC2pYDl","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"I8yIdi2Ego4uoyxmUgXcTisJn0c"},{"type":"paragraph","children":[{"type":"text","text":"/j/谐音“耶”","id":""}],"text":"","id":"J2ScdIcYUouWkWxiojWcdJ1KnJh"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：发音时声带震动，气流口腔发出。浊辅音，发音口型类似/ i/.","id":""}],"text":"","id":"QmQMd4CA2o0cWYxeKdicdK2bn7c"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：ye [jes] adv.是的；young [jʌŋ] adj.年轻的","id":""}],"text":"","id":"KEWidUWoGoamgQxmw03cCYVqnkd"},{"type":"image","attrs":{"height":275,"note":[{"type":"text","text":"半元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/225dc1955f054974a842c952f4f410d4","width":454},"text":"","id":"ZQasdYIoqosm46xOoZPcbpW9nPd"},{"type":"paragraph","children":[{"type":"text","text":"/w/谐音“屋”","id":""}],"text":"","id":"M0oudgMQGoOYKQxobhpceOocnjg"},{"type":"paragraph","children":[{"type":"text","text":"发音方法：嘴唇张开到刚好可以含住一根吸管的程度，并向前微噘起，但上齿不能接触下唇,立刻滑向其后的元音。","id":""}],"text":"","id":"E6sYdKOuGoG2eWxMV8gc1I5Lngc"},{"type":"paragraph","children":[{"type":"text","text":"单词举例：wish [wɪʃ] ：v. 希望； which [wɪtʃ] ：pron. 哪一个","id":""}],"text":"","id":"N8yMd808YogkeYxS8Bzcw8AnnZe"},{"type":"image","attrs":{"height":299,"note":[{"type":"text","text":"半元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/752d066e3d624ac5a0a385ff5a02f131","width":453},"text":"","id":"A2EAdkoKaoKUE8xCUKAcaFHvnrh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"学习步骤","id":""}],"text":"","id":"KGmUduwi2o4WWcxW8UAcAtf6nsh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"抄写","id":""}],"text":"","id":"CyQmdY0woowyiWxQtzSct7zAn95"},{"type":"paragraph","children":[{"type":"text","text":"抄写音标，并了解音标特点。","id":""}],"text":"","id":"OKeud2iiGoSqEAxWbELcjRpgnqb"},{"type":"paragraph","children":[{"type":"text","text":"对音标的基本认知","id":""}],"text":"","id":"RaimdAOiYoEG8SxSmf2ceFeonGc"},{"type":"paragraph","children":[{"type":"text","text":"1、区别长短音带“：”的音标发音相对较长不带“：”的音标发音相对较短。","id":""}],"text":"","id":"Z2ScdmyGqomYqaxyqkdcLdq3nhL"},{"type":"paragraph","children":[{"type":"text","text":"2、区别清辅音和浊辅音核心区别：清辅音声带不震动，浊辅音声带振动。","id":""}],"text":"","id":"NYY8dyIYwo8OyAxcjYfcWTgKn3f"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"模仿练习","id":""}],"text":"","id":"V8YAdU2MgoEgOGxKAYHckkUAn0e"},{"type":"paragraph","children":[{"type":"text","text":"找合适的视频学习学习跟读。例如b站上《【赖世雄48个英语音标朗读示范，美音英音对照版-哔哩哔哩】 【","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/sHYQFZ3"},"children":[{"type":"text","text":"https://b23.tv/sHYQFZ3","id":""}],"text":"","id":""},{"type":"text","text":"】》、《【李咏梅老师英语（音标部分）——最牛的初中英语老师！没有之一！李咏梅国际音标 （完整版发音篇）-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/U1pmjNE"},"children":[{"type":"text","text":"https://b23.tv/U1pmjNE","id":""}],"text":"","id":""},{"type":"text","text":"》、《【纯正英式发音】这是BBC出品的到现在为止最棒的英语发音教程（完整版）-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/gZzDKl5"},"children":[{"type":"text","text":"https://b23.tv/gZzDKl5","id":""}],"text":"","id":""},{"type":"text","text":"》，以上几个视频都非常不错，详细讲解每个音标的读法。","id":""},{"type":"text","text":"注意视频一定至少跟读5遍，才能确保你的学习效果。","id":""}],"text":"","id":"KS4ydK4S6oiIQmxu0vncRSQHnMd"},{"type":"paragraph","children":[{"type":"text","text":"也可以通过下面这个视频观察发音口型的变化。","id":""}],"text":"","id":"IuCAd8Eeao4kYCxCirecwybinKd"},{"type":"paragraph","children":[{"type":"text","text":"《【48个英语音标示范读音-哔哩哔哩】 ","id":""},{"type":"external_link","attrs":{"url":"https://b23.tv/mt9vVaK"},"children":[{"type":"text","text":"https://b23.tv/mt9vVaK","id":""}],"text":"","id":""},{"type":"text","text":"》","id":""}],"text":"","id":"CMmAd4gewoQWIUxKQ07cNUeEnPb"},{"type":"paragraph","children":[{"type":"text","text":"1、模仿练习，学习国际音标的发音，要注意观察老师的口型，观察发音部位的变化，主动模仿发音，初学可以对着镜子模仿练习，特别是元音发音的舌位高低，口腔开口度大小与音色关系十分密切，可以通过镜子观察口型上的区别，观察舌尖、舌面、舌叶的活动情况，比如u和o、i和e、e和ε等等，掌握准确口腔开口度，对于准确发音具有非常重要的意义。","id":""}],"text":"","id":"XcymdwOWCo6CIGxa2tecRpqyncd"},{"type":"paragraph","children":[{"type":"text","text":"2、听音训练:学习国际音标需要认识48个音标，通过反反复复的听力练习，达到强化记忆。听音训练，如果有条件，可以多听老师朗读音标，也可以使用录音带反复听音，本课件中的每个音素，都可以循环倾听，强化记忆。","id":""}],"text":"","id":"N242dAYGAoY4MIxCel4c7gT7nOd"},{"type":"paragraph","children":[{"type":"text","text":"3、多动口，动口是加强实践的关键和核心，听音也好，模仿也好，比较也好，最终要归结到自己发音这一目标上来，所以勤动口是掌握国际音标发音的关键。俗话说，\"三天不写手生，三天不念口生\"，说的就是要加强动手动口能力的培养。因此学习国际音标，要时时加强语音训练，勤动口，反复实践练习，在实践中比较，在实践中体会差别，做到熟能生巧，这样自然就掌握国际音标的发音了。","id":""}],"text":"","id":"C8AGdQweWo6Eq4xwZQpcAzqTnGg"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"重点音标讲解","id":""}],"text":"","id":"NYgkdUaewoSIquxc48NcmqD7nQy"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"单元音","id":""}],"text":"","id":"YW4wdUskoocOAwxuatBcuFsWn1d"},{"type":"paragraph","children":[{"type":"text","text":"[i:] =“一”","id":""}],"text":"","id":"HgwEd26sEoK8kaxa0MKcjHMRnRc"},{"type":"paragraph","children":[{"type":"text","text":"[ɪ]：[ɪ]开口要比[i:]稍大，注意比较两图口型。","id":""}],"text":"","id":"MSyYdOwSUo0k2axkAtYc5sddnbB"},{"type":"image","attrs":{"height":150,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/424933217c51464b98439d52a906dc79","width":313},"text":"","id":"XAeYdY8kMoOcUmx8IcRck6D9n7b"},{"type":"paragraph","children":[{"type":"text","text":"[e] 嘴张45°，[æ]嘴张90°","id":""}],"text":"","id":"FeQGdy2Smou2O6xURCZcVp3Lnae"},{"type":"image","attrs":{"height":145,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6672fd2298724d35a280bead538ac3ae","width":306},"text":"","id":"RmM4dISSQoAMIcxygd5cxr6HnOe"},{"type":"paragraph","children":[{"type":"text","text":"[ɜ:r] [ər]=“二”","id":""}],"text":"","id":"TSo6dKsSWo2GYcxZjETc9G1GnDG"},{"type":"paragraph","children":[{"type":"text","text":"[ə]=额（不卷舌）","id":""}],"text":"","id":"HMsmdKmyKoAssoxAzOdc7OWnntg"},{"type":"image","attrs":{"height":169,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/23669fa681c94516b68dbd7dfbeacb30","width":287},"text":"","id":"Fo6QduWAwokykix49KRcfCJmnof"},{"type":"paragraph","children":[{"type":"text","text":"[ʌ]：开口比“啊”略小","id":""}],"text":"","id":"BGsmdsW6woUimYxOwpucaftfnNc"},{"type":"paragraph","children":[{"type":"text","text":"[ɑ:r]=卷舌的“啊”","id":""}],"text":"","id":"T4q6dQqcMo8UY4x6uROcurTungg"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"Yc4mdmGSQow40gxqCAGcOvvinBd"},{"type":"image","attrs":{"height":158,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/4a325dcff9bf444c93f02a661b7eb1dc","width":288},"text":"","id":"YI2udUmcEoUO2axUffDc55c0n5b"},{"type":"paragraph","children":[{"type":"text","text":"[ɑ] =“啊”","id":""}],"text":"","id":"GOUkd82oyoSQK2xGU3Yc38ITngg"},{"type":"paragraph","children":[{"type":"text","text":"[ɔ] =开口稍大的“哦”","id":""}],"text":"","id":"BY4wdeQqqoy6C6xqo3wc8LQdnVh"},{"type":"paragraph","children":[{"type":"text","text":"[ɔ:r]=卷舌的“哦”","id":""}],"text":"","id":"VieGd4caOoI2eIxKk63cHfKcnEh"},{"type":"imageList","children":[{"type":"image","attrs":{"height":110,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/47f4542a00f04f7aae6be6656657cf8c","width":114},"text":"","id":"IE8cdeAC4oMySuxgcAocFfSanZ3"},{"type":"image","attrs":{"height":110,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/710b04be027845d7be2106e9bbeb33a3","width":104},"text":"","id":"XmK2diS0YoCssGx8z5CcCyTSnad"},{"type":"image","attrs":{"height":110,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/710b04be027845d7be2106e9bbeb33a3","width":104},"text":"","id":"XmK2diS0YoCssGx8z5CcCyTSnad"},{"type":"image","attrs":{"height":110,"note":[{"type":"text","text":"单元音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/89ec169b38a04ab99190b396206e9400","width":98},"text":"","id":"UyMSdui2WoASQExMfVZcTvLqnrd"}],"text":"","id":"T8sYd4Wu8oaAOIxMxS7cIc9snLb"},{"type":"paragraph","children":[{"type":"text","text":"[u:]核心：双唇由半开微突，过渡到合嘴圆唇","id":""}],"text":"","id":"T8sYd4Wu8oaAOIxMxS7cIc9snLb"},{"type":"paragraph","children":[{"type":"text","text":"[ʊ] 发成噘嘴的[ə],气流向外。","id":""}],"text":"","id":"C4EUdoaeCoGgg2xA94WcKc7XnVg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"双元音","id":""}],"text":"","id":"RGS8duyAEoSGqgxas3DcrumNnog"},{"type":"paragraph","children":[{"type":"text","text":"双元音较简单，大多数可进行类比，注意双元音的重音在第一个音标，即前一个音读的稍重，后一个音读的较轻。","id":""}],"text":"","id":"Ww4IdocgUoaaeAxYJjwcra66neh"},{"type":"paragraph","children":[{"type":"text","text":"[eɪ]=“A”","id":""}],"text":"","id":"TciidSSSmoKY6MxOmfycHajin1A"},{"type":"paragraph","children":[{"type":"text","text":"[aɪ]=“I”","id":""}],"text":"","id":"QyWEdEi4eo0WC4xYBXWcKXKJn3g"},{"type":"paragraph","children":[{"type":"text","text":"[əʊ]=“O”","id":""}],"text":"","id":"OaqodkkAWoIIwixUvLJciK9Dnbg"},{"type":"paragraph","children":[{"type":"text","text":"[ɔɪ]=“哦一”","id":""}],"text":"","id":"EIkGdeWMMoCgCKxujKucWEgXnl7"},{"type":"paragraph","children":[{"type":"text","text":"[ɪə]=ear","id":""}],"text":"","id":"E6Wedoq6Go4KQKx0OLvcGKWAnNe"},{"type":"paragraph","children":[{"type":"text","text":"[eə]=air","id":""}],"text":"","id":"WKsUdcKGSouW0exAVi9cPsZcnWb"},{"type":"paragraph","children":[{"type":"text","text":"[ʊə]=“乌尔”","id":""}],"text":"","id":"JMWSdYuUAo84WexU5RncsFdWnYe"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"辅音","id":""}],"text":"","id":"I6SAdQWcYoe2WexqIZ7cCguWnbd"},{"type":"paragraph","children":[{"type":"text","text":"大部分辅音跟“汉语拼音”都有相似之处，直接看视频模仿即可，这里只讲解易错发音。","id":""}],"text":"","id":"WOS4dUWgKoegoQxoBW1c0scNnCh"},{"type":"paragraph","children":[{"type":"text","text":"爆破音：","id":""}],"text":"","id":"AGwkdoY06oeKEExaYJdcMIPWnyc"},{"type":"paragraph","children":[{"type":"text","text":"[t] [p] [k] 不要读成[tə] [pə] [kə] 注意：它们声带不震动","id":""}],"text":"","id":"LqIEdUkemo8g6Gx2j13czIRNn4e"},{"type":"paragraph","children":[{"type":"text","text":"摩擦音：","id":""}],"text":"","id":"JAkqdWaUkoe4oQx6CBicKu6JnIf"},{"type":"paragraph","children":[{"type":"text","text":"[f][v] 咬唇音，注意上齿咬下唇","id":""}],"text":"","id":"UMwCdEUkWoQ6uQxwJcscTdTUnrd"},{"type":"image","attrs":{"height":146,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/2ad2d1355a204bcbae724b0dc07ceb1b","width":248},"text":"","id":"QugUdOeOOoC8yAxzSjzcPmdenp5"},{"type":"paragraph","children":[{"type":"text","text":"[θ][ð]","id":""}],"text":"","id":"BoGUd4UcUoS2eSxig5ac7Oh0nPf"},{"type":"paragraph","children":[{"type":"text","text":"上下齿轻咬舌头，发音时能看到你的舌头露出","id":""}],"text":"","id":"YesIdOoy4oEWmax6YWXcvXUSn1g"},{"type":"image","attrs":{"height":125,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/fb45b894066748d99889cbe3cbcf925d","width":239},"text":"","id":"XM0idmGoWosKc0xkOwdckSZZnUx"},{"type":"paragraph","children":[{"type":"text","text":"[ʃ]=不发音的“诗” [ʒ]= “日”","id":""}],"text":"","id":"BC0IdUyW4oiyGqxMzvxcAjzpnIg"},{"type":"image","attrs":{"height":144,"note":[{"type":"text","text":"辅音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/c8f6dc95aeda44ba960be5c6b0ae01ba","width":278},"text":"","id":"DSW8dw0eQoyYAIx87UScLiJbnvh"},{"type":"paragraph","children":[{"type":"text","text":"[r]=撅嘴＋卷舌的“热” [h]=不发音＋舌头平放的“喝”","id":""}],"text":"","id":"HMsYdguS0osqikxYJjncCMxjnie"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"鼻音","id":""}],"text":"","id":"QYkOdgowEo6mSExYBRPc5wiznOc"},{"type":"paragraph","children":[{"type":"text","text":"[m] 合嘴","id":""}],"text":"","id":"LeSWdaaQkouGaMxKWxWcL08ense"},{"type":"paragraph","children":[{"type":"text","text":"[n] 舌前部抵住上颚","id":""}],"text":"","id":"XmKIdKGsiooa6ix6RbecaOExnUd"},{"type":"paragraph","children":[{"type":"text","text":"[ŋ] 嘴巴张开","id":""}],"text":"","id":"Xcusd4giYokcyGxKw8JccJM3nxd"},{"type":"imageList","children":[{"type":"image","attrs":{"height":114,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6809d9fd4d604c999772a6441dca8739","width":157},"text":"","id":"HEw2dqIAYoysEoxiySQcHndjnud"},{"type":"image","attrs":{"height":114,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6fa595b78ba94c89aadb1b2da94aaa69","width":157},"text":"","id":"CiAOdC6iooIYUEx0Yq6cvTGhnGd"},{"type":"image","attrs":{"height":114,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/6fa595b78ba94c89aadb1b2da94aaa69","width":157},"text":"","id":"CiAOdC6iooIYUEx0Yq6cvTGhnGd"},{"type":"image","attrs":{"height":114,"note":[{"type":"text","text":"鼻音","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/5675b8cf0d67465db9106dd349b765ab","width":165},"text":"","id":"ICYydaeeyosCAQxq6mDcf2cJnvb"}],"text":"","id":"IM4QdgE82oU0wAxkvaac1cYYnPd"},{"type":"paragraph","children":[{"type":"text","text":"舌侧音[l]","id":""}],"text":"","id":"IM4QdgE82oU0wAxkvaac1cYYnPd"},{"type":"paragraph","children":[{"type":"text","text":"元音前：跟拼音“l”发音一致元音后：发“l”的前半段","id":""}],"text":"","id":"UAW4dyoO6ouEMwxU9DycGSVfnTd"},{"type":"paragraph","children":[{"type":"text","text":"半元音","id":""}],"text":"","id":"VYiUdiuoAoc0SkxJxQ7cKyODnHH"},{"type":"paragraph","children":[{"type":"text","text":"[j] “也”","id":""}],"text":"","id":"MiEYdKWOGoYoCsxaALDcfRxtn7d"},{"type":"paragraph","children":[{"type":"text","text":"[w] =圆唇噘嘴的“我”","id":""}],"text":"","id":"Eakqd8i8gomqCCx0C5ScvszAn3c"},{"type":"paragraph","children":[{"type":"text","text":"破擦音","id":""}],"text":"","id":"PWgEdOqSCo2cwaxgnVNcniofnCc"},{"type":"paragraph","children":[{"type":"text","text":"[tʃ]= 不发声的“吃”","id":""}],"text":"","id":"QUISdIOmYo8CAEx2xyfcxw1EnMg"},{"type":"paragraph","children":[{"type":"text","text":"[dʒ]= “居”","id":""}],"text":"","id":"XGoQdUkewoOKqwxg1NmcNvosncd"},{"type":"paragraph","children":[{"type":"text","text":"[ts]=不发声的“次”","id":""}],"text":"","id":"P8K6ducAkoeSccxsVFec10Icnve"},{"type":"paragraph","children":[{"type":"text","text":"[dz]=“子”","id":""}],"text":"","id":"V2CSdAm0ioYYcqxADoecjOXUn5T"},{"type":"paragraph","children":[{"type":"text","text":"[tr] 先发“t”，在发“r”，最后结合在一起","id":""}],"text":"","id":"PMwOdSKYsoO6yyxKW0vcyzhxnBb"},{"type":"paragraph","children":[{"type":"text","text":"[dr] 同上","id":""}],"text":"","id":"PqcCdaYuSosyuIx02oycX1iwnQh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"词汇拼读","id":""}],"text":"","id":"I0GedsKk0oUgoOxuyXccgX1vnGe"},{"type":"paragraph","children":[{"type":"text","text":"1、规划拼读任务，拿出单词书或课本词汇表，找只含1~2个音节的单词拼读，20个为一组，每天练习3组，当然如果有时间，多进行几组也OK，加强效果。后期难度逐渐加大。","id":""}],"text":"","id":"YiK6dkyMqoE6KYxcZFecaO2Onic"},{"type":"paragraph","children":[{"type":"text","text":"2、输入法识别词汇，每拼读一个词汇，都对着X飞输入法的语音识别功能朗读，看能否被输入法识别出单词，用机器来检测是否读的准确。","id":""}],"text":"","id":"F82MdiS0OoEyEyxk1SicCu6vnaf"},{"type":"paragraph","children":[{"type":"text","text":"3、听词汇跟读，不管输入法识别出单词，还是没识别出单词，都要查手机字典，来听一遍听力，并跟读，模仿语调和轻重读音。","id":""}],"text":"","id":"GcOsd4I80oaSsExCYAecvtgonmg"},{"type":"paragraph","children":[{"type":"text","text":"例如：Cash driver apartment money breakfast lawyer agency ","id":""}],"text":"","id":"UAkYd6KyoosOe8xyaEycPumwn0d"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"学习计划","id":""}],"text":"","id":"Ig8edugQyogYa8xmCTpcTKcgnRf"},{"type":"paragraph","children":[{"type":"text","text":"1、国际音标，一共48个，每天学4个，12天学完，元音和辅音每天各学习两个。","id":""}],"text":"","id":"Kk6IdUSM0omgecxaQbkcSsZsnve"},{"type":"paragraph","children":[{"type":"text","text":"2、学完以后结合和音标相关的单词，每天坚持读一个小时，第二天要把第一天的一块儿读，第三天要把前两天的一块儿读，依次类推，坚持学完所有的音标，就可以读字典上任何一个单词。","id":""}],"text":"","id":"QG6sdm2M4o68ouxYDuzcFDxhn9g"},{"type":"paragraph","children":[{"type":"text","text":"3、长期坚持下去，会发现其实很多字母和音标有着关联，比如ph都发音标f的音，字母u发尖a的音，类似的规律，当大家坚持下来以后会发现很多，同时你甚至可以听到单词的发音就能把单词拼出来，直接就把背单词的问题解决了，音标会读，单词会读，单词会背，听力当然也不再是问题。自己总结出来的规律说明真的学会了，同时自己得出来的结论要比老师直接告诉你印象更深刻，同时最重要的是用起来更容易。","id":""}],"text":"","id":"Km8odoYG4omMG2xQjwvctwuOn8e"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"注意事项","id":""}],"text":"","id":"XS6WduK8gocSyQxwpyYc32mDnId"},{"type":"paragraph","children":[{"type":"text","text":"1、了解发音要领，模仿老师口型","id":""}],"text":"","id":"QaWwde6UQoWyyox8b3Yc0PnGngd"},{"type":"paragraph","children":[{"type":"text","text":"学习语音，一定要注意口型，并仔细揣摩每个音标的发音要领，特别是相似音标的发音区别。 ","id":""}],"text":"","id":"Jii2diISEoMkQixoveicLaPdn7b"},{"type":"paragraph","children":[{"type":"text","text":"零基础学员不要以为盯着老师的口型就好了，其实发音很多都是内部器官看不到的， 所以需要老师正确的发音示范，跟着老师一起读，然后再加上老师给的一些技巧，继续跟读，老师感觉哪有问题，再帮着纠正，这样一系列过程才是练成标准发音的秘籍。 ","id":""}],"text":"","id":"Pow0deEogocwqexqKJOchO9Qnbc"},{"type":"paragraph","children":[{"type":"text","text":"2、 单词拼读实战，一对一纠正错误","id":""}],"text":"","id":"KqAmdu0E4oWkkExaukOcf14rnHf"},{"type":"paragraph","children":[{"type":"text","text":"养成一口纯正口语最重要的还是练习练习再练习，单词拼读实战训练，巩固你的发音。不断读，不断纠正，训练单个音标到训练多个单词，在学习语音的过程中，再掌握一些基础的词汇。","id":""}],"text":"","id":"B0cyd2a4kowyACxM4E2cCki4nsi"},{"type":"paragraph","children":[{"type":"text","text":"3、辩音练习，纠正错误，掌握发音规律","id":""}],"text":"","id":"AQWQdmkKmoYcqyxsrTAcvvH8nhy"},{"type":"paragraph","children":[{"type":"text","text":"训练难度会随着课程的深入不断加强，但还是训练相同的内容，一节课很多类似的训练内容。音标中很多类似的发音，将相似音放在一起对比再练习，舌头和耳朵在这很重要。","id":""}],"text":"","id":"LyKYdA4oIoQC8exa2vjcYOc1nle"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"G4aGdqMEMoO2AGxkzAkcWRvAnHd"}]%3C%2Fhowto_content%3E

7. lng加气站卸车视频

汽车改液化气不能加民用液化气。

液化气罐的接口管径与灌装天然气的加气枪也不一样，无法通用，即使经过改装，天然气公司的人也不会给用户加的，家用燃气为LNG而车用燃气是CNG。

煤气罐中是液化石油气，主要成分为丙烷、丙烯、丁烷、丁烯等，而煤气其主要成分是一氧化碳、甲烷和氢等。两者有相似的地方，但是还是有一定区别的。

8. lng的卸液流程视频

焊工操作证是焊工作业必须持有的证件，具有极强的法律效应。焊工操作证也称为焊工上岗证，是由应急管理厅(原安监局)颁发的，像身份证一样大小，是IC卡形式的。

考试基本介绍

考试介绍

焊工证属于特种作业操作证，又称熔化焊接与热切割作业操作证。证书全国通用，是由安监局进行颁发的正规证书。证书每三年一审，六年一换。证书类型（IC卡片）类似身份证。焊工操作证不分等级，一般只要是从事金属焊接切割作业(电焊、气焊、弧焊、电焊气割)等工作，都是领取同一种焊工操作证，不需要细化，证书带磁卡，全国通用。

IC卡版证书样本

国家文件明文规定企业聘用人员必须持此证，焊工等级资格证：俗称焊工等级证，是由人力资源与社会保障局简称为人社局，也就是以前我们常说的劳动局颁发的。 焊工职业共设五个等级，分别为：

初级（国家职业资格五级）中级（国家职业资格四级）高级（国家职业资格三级）技师（国家职业资格二级）高级技师（国家职业资格一级）。这个证是按照焊接工龄，技术水平的因素综合鉴定的。

报考条件

(一) 年满18周岁且符合相关工种规定的年龄要求；

(二) 经医院体检合格且无妨碍从事相应特种作业的疾病和生理缺陷；

(三) 初中及以上学历；

(四) 符合相应特种作业需要的其他条件。

报考时间以及考试时间

不同城市考试时间不同。焊工证的报名时间是没有限定的，在任何时间都是可以报名的，报名之后需要完成培训才能参加考试。需要注意的是报名和培训需要委托给当地的定点学校，并且是当地应急管理厅指定的焊工培训机构。每个月最少两次考试，考完3天证书可查。根据报考级别不同，下证时间也会变化，一般考后3-6月下证。

科目介绍

焊工理论

1、焊工安全生产法律法规与安全管理

2、熔化焊与热切割基础知识

3、熔化焊与热切割作业危险源辨识

4、融化焊与热切割安全用电

5、化学品的安全使用

6、熔化焊与热刀割的防火防爆

7、熔化焊与热切割作业劳动生产与防护

焊工实操

科目一：安全用具使用

1、焊条电弧焊劳动保护用品的选用

2、二氧化碳含劳动保护用品的选用

3、环弧焊劳动保护用品的选用

4、气焊、气割劳动保护用品的选用

科目二：安全操作技术

1、焊条电弧焊安全操作技术

2、二氧化碳焊安全操作技术

3、镗弧焊安全操作技术

4、气焊、气割安全操作技术

科目三：作业现场安全隐患排除

判断作业现场存在的安全风险、职业危害

科目四：作业现场应急处理

1、单人徒手心肺复苏操作

2、灭火器的选择和使用

考试形式介绍

理论考试

100道题，其中60道判断题，40道单项选择题，每道题1分。满分100分80分合格，使用电脑考试，考试时间120分钟。（理论考试为电脑机考)

实操考试

四个科目，其中科目一：安全用具使用（劳动保护用品的正确选择与穿戴，20分）；

科目二：安全操作技术（手工电弧焊、二氧化碳焊、氩弧焊、气焊，抽考其中一个项目，气割必考，40分）；

科目三：作业现场安全隐患排除（视频看图隐患排查，20分）；

科目四：作业现场应急处理（急救与灭火器的选择与使用，20分）。

满分100分80分合格，现场操作，考试时间60分钟。

证书领取

特种作业操作证有效期为6年，满3年需要复审，满6年需要换证。请在证件复审期或换证期满前60日内回学校申请复审换证。

备考方法

焊工证笔试

焊工考试作为一门职业资格考试，理论知识是是以卷面考试的形式呈现的， 试题十分专业化，这就需要我们积累足够的知识与做题量。所以经常要刷题，有句话说的好熟能生巧，考试题目都是在刷题里抽查的。平时练习的话可以用云习App，免费、方便、简单、工种多、试题多，也可以下载考证宝典，全国安排考试的，里面有国家标准题库，只要多多练习，通过率很高。

焊接的实际操作考试主要分为手焊工和焊机操作工的考试，可以根据情况来选定或者有些省份是抽取。抽取内容为：焊条电弧焊、二氧化碳气体保护焊、氩弧焊及气焊中的一项。主要就是日常工作中的一些内容，比如说能否焊出合格的焊缝，对于焊接的操作是否合理，能否选择正确的焊接设备和焊接材料以及焊出图纸要求的简单的一些管件等，人为因素还是比较大的，换句话说，只要焊接的差不多考官都会给通过的。

焊工证实操

焊条电弧焊

焊条电弧焊是利用手工操作焊条进行作业，通常能够满足平焊、立焊和仰焊等多种施工位置。由于焊条电弧焊的设备比较轻便简单、操作灵活，可以适用于任何拥有电源的地方作业。焊条电弧焊同时也是最不挑剔的焊接工艺，对于各种金属材料、厚度及结构造型没有刁钻苛刻的要求。

二氧化碳气体保护焊

二氧化碳气体保护焊简称二保焊，学名又称CO焊。CO具有氧化性，且CO来源广，价格低，所以作用于保护气体非常合适。为了保证获得良好的焊接效果，在焊接过程中需要考虑设施设备、施工工艺及焊丝选择等方面。在目前的焊接领域，CO焊已经是黑色金属材料的最重要焊接方式，同时，在工艺上也能够取代大部分的焊条电弧焊及埋弧焊。

氩弧焊

氩弧焊是升级版的电弧焊，利用氩气保护金属焊接材料，在作业中，高电流可以让焊接材料在被焊接材料商熔化形成熔池，达到冶金结合的技术。在高温热熔焊接的过程中不断输入氩气，断绝了焊接材料和空气接触，能够防止焊材的氧化，所以对于铜、合金。铝等有色金属来说，氩弧焊是最为合适的焊接工艺。

气焊

气焊是通过气体产生火焰将两个材料的接头熔化部分位置，再添加填充金属，等熔池冷却凝固后，两个材料形成一个整体的焊接手法。气焊的工具设备很简单，通用性比较大，对厚度薄、体量小的焊接材料作业时不易烧穿，在无电源的情况下也能够使用，所以气焊的应用环境相当广泛，不仅运用在在管道和薄壁机械的制造和安装，而且还能运用于小体量的机件和铸件的修复。

焊证考试的技巧口诀是焊接人机料法环，操作技艺占为先。手脑合一最重要，切忌浮躁心不专。右手僵硬是大忌，内旋外旋施时变。纵横并进三方向，牢记焊接三要点。焊前组对按规范，焊条质优且要干。引燃电弧有技巧，划擦撞击可任选等等。

实操考核方面，需要注意的点：

1、焊接时焊条的直径应根据工件的厚度、接头的形式、焊接位置和焊接层数、焊接电流的大小来选择

对于非平焊位置焊和开槽多层焊的第一层，应使用直径较小的焊条；立焊、水平焊和仰焊使用比平焊更小的电极；厚板使用更厚但不合适的电极 超过板厚。

2、收弧时注意填满弧坑

常用的焊缝收弧方法有：圆弧收弧、反复断弧和收弧、收弧外弧重焊收弧等。当一个焊道完成后，如果立即断弧，会在焊接面下方形成弧坑；弧坑过深不仅影响外观，还会削弱端部的强度，容易造成应力集中或形成弧坑裂纹。

3、引弧方式一般有：划痕引弧法和直接引弧法

操作时用力要适中，行程或行程要干净利落。否则，如果引弧动作过快或电极抬高过高，难以建立稳定的电弧，启动后电弧可能会熄灭；如果引弧动作过慢，电极和工件会粘在一起，造成长期短路。使焊条过热发红，引起药效如果皮肤脱落，则无法建立稳定的电弧。

4、对于大间隙，一般采用三点焊，并应注意焊道的焊接顺序

除了铸铁嵌件的焊接外，金属填料不适合大多数大型焊接，因为不可避免地会出现熔深不足的缺陷，焊脚的增加会影响焊件的强度。

5、避免磁偏吹

直流电弧最大的缺点是电弧会被磁吹，导致电弧不稳定，严重时无法焊接，尤其是大电流、深坡口、角焊。避免磁偏吹的措施包括：使用交流电源进行焊接，正确选择电缆接入位置，调整焊条角度。

%3Chowto_content%3E[{"type":"paragraph","attrs":{"is_abstract":true},"children":[{"type":"text","text":"焊工操作证是焊工作业必须持有的证件，具有极强的法律效应。焊工操作证也称为焊工上岗证，是由应急管理厅(原安监局)颁发的，像身份证一样大小，是IC卡形式的。","id":""}],"text":"","id":"doxcn22rp3QIwxsZX1FnWLTZ9wf"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"考试基本介绍","id":""}],"text":"","id":"doxcnwk6xyAA8iAJVYdrJ8LtTUc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"考试介绍","id":""}],"text":"","id":"doxcnIhqmxNFsB3D0Z5woNBHICz"},{"type":"paragraph","children":[{"type":"text","text":"焊工证属于特种作业操作证，又称熔化焊接与热切割作业操作证。证书全国通用，是由安监局进行颁发的正规证书。证书每三年一审，六年一换。证书类型（IC卡片）类似身份证。焊工操作证不分等级，一般只要是从事金属焊接切割作业(电焊、气焊、弧焊、电焊气割)等工作，都是领取同一种焊工操作证，不需要细化，证书带磁卡，全国通用。","id":""}],"text":"","id":"doxcnHB3cel6vhGxSNquBnfTBIb"},{"type":"image","attrs":{"height":367,"note":[{"type":"text","text":"考试介绍","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/815c806d7cc944ae9d34bffa09027eb6","width":292},"text":"","id":"doxcn8tcjqLUpJwKuvuLt7F4fXf"},{"type":"paragraph","children":[{"type":"text","text":" IC卡版证书样本","id":""}],"text":"","id":"doxcnUrG5hgzQmqaqRLK0uaJheh"},{"type":"paragraph","children":[{"type":"text","text":"国家文件明文规定企业聘用人员必须持此证，焊工等级资格证：俗称焊工等级证，是由人力资源与社会保障局简称为人社局，也就是以前我们常说的劳动局颁发的。 焊工职业共设五个等级，分别为：","id":""}],"text":"","id":"doxcnt9EZQjQ3peSkUz13S3zwuh"},{"type":"paragraph","children":[{"type":"text","text":"初级（国家职业资格五级）中级（国家职业资格四级）高级（国家职业资格三级）技师（国家职业资格二级）高级技师（国家职业资格一级）。这个证是按照焊接工龄，技术水平的因素综合鉴定的。","id":""}],"text":"","id":"doxcnTbXHkQjFIEIRrZ8xoEQlze"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"报考条件","id":""}],"text":"","id":"doxcnyeFIFyp49nVAxxhqjxaWrb"},{"type":"paragraph","children":[{"type":"text","text":"(一) 年满18周岁且符合相关工种规定的年龄要求；","id":""}],"text":"","id":"doxcnD6GOuuPQ7bx8TzwKX1Q8od"},{"type":"paragraph","children":[{"type":"text","text":"(二) 经医院体检合格且无妨碍从事相应特种作业的疾病和生理缺陷；","id":""}],"text":"","id":"doxcnuvAE4ZAyAWbIOLEvmDf7fg"},{"type":"paragraph","children":[{"type":"text","text":"(三) 初中及以上学历；","id":""}],"text":"","id":"doxcnzt4XtShprqzM3Rvco1fiHh"},{"type":"paragraph","children":[{"type":"text","text":"(四) 符合相应特种作业需要的其他条件。","id":""}],"text":"","id":"doxcnM5FZKPQzKLTO7xoOemhL2g"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"报考时间以及考试时间","id":""}],"text":"","id":"doxcn5krbvqNCrqm8IQUTp3EmKd"},{"type":"paragraph","children":[{"type":"text","text":"不同城市考试时间不同。焊工证的报名时间是没有限定的，在任何时间都是可以报名的，报名之后需要完成培训才能参加考试。需要注意的是报名和培训需要委托给当地的定点学校，并且是当地应急管理厅指定的焊工培训机构。每个月最少两次考试，考完3天证书可查。根据报考级别不同，下证时间也会变化，一般考后3-6月下证。","id":""}],"text":"","id":"doxcnX51bL4RQFp1Hgyo5RvgwBb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"科目介绍","id":""}],"text":"","id":"doxcnyw9qH5RCYhjGKpmc1YX43f"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"焊工理论","id":""}],"text":"","id":"doxcnAGMdA5JCXLvAAHiQI0oNeb"},{"type":"paragraph","children":[{"type":"text","text":"1、焊工安全生产法律法规与安全管理","id":""}],"text":"","id":"doxcnlQ2swuKQl7jSobe6RBM4Ib"},{"type":"paragraph","children":[{"type":"text","text":"2、熔化焊与热切割基础知识","id":""}],"text":"","id":"doxcnQujfeZUpbVx2UIOYKS86Xd"},{"type":"paragraph","children":[{"type":"text","text":"3、熔化焊与热切割作业危险源辨识","id":""}],"text":"","id":"doxcnLvwxynz8W7KTvLDEkm1VUb"},{"type":"paragraph","children":[{"type":"text","text":"4、融化焊与热切割安全用电","id":""}],"text":"","id":"doxcnCDfPSIIB4ij1xpv1Ce9Trh"},{"type":"paragraph","children":[{"type":"text","text":"5、化学品的安全使用","id":""}],"text":"","id":"doxcnMO7CdVi1AjUtizJEifwWHd"},{"type":"paragraph","children":[{"type":"text","text":"6、熔化焊与热刀割的防火防爆","id":""}],"text":"","id":"doxcn9g5SjKP612q3tKHwb6vnQd"},{"type":"paragraph","children":[{"type":"text","text":"7、熔化焊与热切割作业劳动生产与防护","id":""}],"text":"","id":"doxcnWEWVmTlARILo1jzL9MOTQg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"焊工实操","id":""}],"text":"","id":"doxcn2LI5NTQ23kfVg4ZVwftsQf"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"科目一：安全用具使用","id":""}],"text":"","id":"doxcnEIxx2I9W9Blitf1ugEt7vU"},{"type":"paragraph","children":[{"type":"text","text":"1、焊条电弧焊劳动保护用品的选用","id":""}],"text":"","id":"doxcnCaSb00xcNxn1RfYuvzx3yb"},{"type":"paragraph","children":[{"type":"text","text":"2、二氧化碳含劳动保护用品的选用","id":""}],"text":"","id":"doxcnz6VnDlNGG11DGHnbphN4Oo"},{"type":"paragraph","children":[{"type":"text","text":"3、环弧焊劳动保护用品的选用","id":""}],"text":"","id":"doxcnw2aOuslR2JPtLqte8Mgewd"},{"type":"paragraph","children":[{"type":"text","text":"4、气焊、气割劳动保护用品的选用","id":""}],"text":"","id":"doxcnG92WpIEfJRoiRwT3rnw73b"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"科目二：安全操作技术","id":""}],"text":"","id":"doxcnTgLdmrvUFMPzWL35Njk35b"},{"type":"paragraph","children":[{"type":"text","text":"1、焊条电弧焊安全操作技术","id":""}],"text":"","id":"doxcn16BFZVRlRLnELT8EaZAwbh"},{"type":"paragraph","children":[{"type":"text","text":"2、二氧化碳焊安全操作技术","id":""}],"text":"","id":"doxcnWK4EIYD9JHtnVmHobiN6Lg"},{"type":"paragraph","children":[{"type":"text","text":"3、镗弧焊安全操作技术","id":""}],"text":"","id":"doxcn011gOKQR73JReLEcLh8ric"},{"type":"paragraph","children":[{"type":"text","text":"4、气焊、气割安全操作技术","id":""}],"text":"","id":"doxcnEttlfoH5pHsuKHRhR2UABb"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"科目三：作业现场安全隐患排除","id":""}],"text":"","id":"doxcnBfkfiO90sTGQumg9CU2Mjb"},{"type":"paragraph","children":[{"type":"text","text":"判断作业现场存在的安全风险、职业危害","id":""}],"text":"","id":"doxcnvzuLYDAWqt9vZbSvxGdDif"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"科目四：作业现场应急处理","id":""}],"text":"","id":"doxcne1DkM16WRT5PCw64kMG4ze"},{"type":"paragraph","children":[{"type":"text","text":"1、单人徒手心肺复苏操作","id":""}],"text":"","id":"doxcn55kk3lywXEiuNOyk233Fhh"},{"type":"paragraph","children":[{"type":"text","text":"2、灭火器的选择和使用","id":""}],"text":"","id":"doxcnIkY6CtUxLUlGlksRO4rLif"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"考试形式介绍","id":""}],"text":"","id":"doxcnMupZXNHBK3RiivTWFbgJQg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"理论考试","id":""}],"text":"","id":"doxcnwFVuMgbIkoncVMzred6I7e"},{"type":"paragraph","children":[{"type":"text","text":"100道题，其中60道判断题，40道单项选择题，每道题1分。满分100分80分合格，使用电脑考试，考试时间120分钟。（理论考试为电脑机考)","id":""}],"text":"","id":"doxcn9saCtmKnSFw5yMMxojX8vg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"实操考试","id":""}],"text":"","id":"doxcnNIyvUcGBlwJ5GKGf03k2ud"},{"type":"paragraph","children":[{"type":"text","text":"四个科目，其中科目一：安全用具使用（劳动保护用品的正确选择与穿戴，20分）；","id":""}],"text":"","id":"doxcnHeygMEuE0eW5Ivm6v1MpNh"},{"type":"paragraph","children":[{"type":"text","text":"科目二：安全操作技术（手工电弧焊、二氧化碳焊、氩弧焊、气焊，抽考其中一个项目，气割必考，40分）；","id":""}],"text":"","id":"doxcnbSs8z9swLWi5m3Tm6YGhVf"},{"type":"paragraph","children":[{"type":"text","text":"科目三：作业现场安全隐患排除（视频看图隐患排查，20分）；","id":""}],"text":"","id":"doxcngtjEXZGO53yDRgtUXq25Wd"},{"type":"paragraph","children":[{"type":"text","text":"科目四：作业现场应急处理（急救与灭火器的选择与使用，20分）。","id":""}],"text":"","id":"doxcnm6mL8tclRRvpPgMnRWd2fb"},{"type":"paragraph","children":[{"type":"text","text":"满分100分80分合格，现场操作，考试时间60分钟。","id":""}],"text":"","id":"doxcnbVQ80bjVL1oTMPLlL8Av8b"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"证书领取","id":""}],"text":"","id":"doxcnHnh6StuRT9YZ6mwRqvh24g"},{"type":"paragraph","children":[{"type":"text","text":"特种作业操作证有效期为6年，满3年需要复审，满6年需要换证。请在证件复审期或换证期满前60日内回学校申请复审换证。","id":""}],"text":"","id":"doxcnkZpGmjcQXa2Wm34yBnrose"},{"type":"image","attrs":{"height":461,"note":[{"type":"text","text":"证书领取","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/5332ac5998bd471a990437b91ca6223b","width":720},"text":"","id":"doxcnFzyTJHODpNTorzMSQjbtBe"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"备考方法","id":""}],"text":"","id":"doxcnXcWDCrIQpYPPBm3vQUKJTb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"焊工证笔试","id":""}],"text":"","id":"doxcnJntQSM26HtDhEJsGjnqgmc"},{"type":"paragraph","children":[{"type":"text","text":"焊工考试作为一门职业资格考试，理论知识是是以卷面考试的形式呈现的， 试题十分专业化，这就需要我们积累足够的知识与做题量。所以经常要刷题，有句话说的好熟能生巧，考试题目都是在刷题里抽查的。平时练习的话可以用云习App，免费、方便、简单、工种多、试题多，也可以下载考证宝典，全国安排考试的，里面有国家标准题库，只要多多练习，通过率很高。","id":""}],"text":"","id":"doxcnxcE0nu3JTbqEqRAtRhWq3g"},{"type":"image","attrs":{"height":480,"note":[{"type":"text","text":"焊工证笔试","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/47915e275dbf4e239a61dc8c94554ee9","width":640},"text":"","id":"doxcnBZYYVQw3MDBS6tb0mZP66g"},{"type":"paragraph","children":[{"type":"text","text":"焊接的实际操作考试主要分为手焊工和焊机操作工的考试，可以根据情况来选定或者有些省份是抽取。抽取内容为：焊条电弧焊、二氧化碳气体保护焊、氩弧焊及气焊中的一项。主要就是日常工作中的一些内容，比如说能否焊出合格的焊缝，对于焊接的操作是否合理，能否选择正确的焊接设备和焊接材料以及焊出图纸要求的简单的一些管件等，人为因素还是比较大的，换句话说，只要焊接的差不多考官都会给通过的。","id":""}],"text":"","id":"doxcnYS9XB8KgdF3PPbjwN7zSKb"},{"type":"image","attrs":{"height":400,"note":[{"type":"text","text":"焊工证笔试","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/b648f950eccc475790e3053946ce6600","width":600},"text":"","id":"doxcnQ5vNmOkhGZ1dH0PhV46Qxg"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"焊工证实操","id":""}],"text":"","id":"doxcnLIBhmlcdjJb3z9CXnlZMFd"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"焊条电弧焊","id":""}],"text":"","id":"doxcnlUJvQ3X61D8n0Z8RkaD4nQ"},{"type":"paragraph","children":[{"type":"text","text":"焊条电弧焊是利用手工操作焊条进行作业，通常能够满足平焊、立焊和仰焊等多种施工位置。由于焊条电弧焊的设备比较轻便简单、操作灵活，可以适用于任何拥有电源的地方作业。焊条电弧焊同时也是最不挑剔的焊接工艺，对于各种金属材料、厚度及结构造型没有刁钻苛刻的要求。","id":""}],"text":"","id":"doxcn1NbIqJECnBoyazgomzmwPf"},{"type":"image","attrs":{"height":553,"note":[{"type":"text","text":"焊条电弧焊","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/45d2e1f0f95049f283464ff5bfcad210","width":915},"text":"","id":"C8UmdKis0oucEuxkzsucLKrVnvg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"二氧化碳气体保护焊","id":""}],"text":"","id":"doxcn8o327noxrLek70IC8ixBvh"},{"type":"paragraph","children":[{"type":"text","text":"二氧化碳气体保护焊简称二保焊，学名又称CO焊。CO具有氧化性，且CO来源广，价格低，所以作用于保护气体非常合适。为了保证获得良好的焊接效果，在焊接过程中需要考虑设施设备、施工工艺及焊丝选择等方面。在目前的焊接领域，CO焊已经是黑色金属材料的最重要焊接方式，同时，在工艺上也能够取代大部分的焊条电弧焊及埋弧焊。","id":""}],"text":"","id":"doxcn7zjgHGwUF5irmwvpxjooYg"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"氩弧焊","id":""}],"text":"","id":"doxcnAT4JKMqmFeNCYmxHeXiMxd"},{"type":"paragraph","children":[{"type":"text","text":"氩弧焊是升级版的电弧焊，利用氩气保护金属焊接材料，在作业中，高电流可以让焊接材料在被焊接材料","id":""},{"type":"text","text":"商","id":""},{"type":"text","text":"熔化形成熔池，达到冶金结合的技术。在高温热熔焊接的过程中不断输入氩气，断绝了焊接材料和空气接触，能够防止焊材的氧化，所以对于铜、合金。铝等有色金属来说，氩弧焊是最为合适的焊接工艺。","id":""}],"text":"","id":"doxcnlyayOp8N78sLHAXS79wnre"},{"type":"image","attrs":{"height":533,"note":[{"type":"text","text":"氩弧焊","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/919c36c42e314a679a85300ae8ef42b0","width":800},"text":"","id":"doxcn0ldcMa1vXa6el64lfefnel"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"气焊","id":""}],"text":"","id":"doxcniCKBOznlXBpTdof6dVZL3e"},{"type":"paragraph","children":[{"type":"text","text":"气焊是通过气体产生火焰将两个材料的接头熔化部分位置，再添加填充金属，等熔池冷却凝固后，两个材料形成一个整体的焊接手法。气焊的工具设备很简单，通用性比较大，对厚度薄、体量小的焊接材料作业时不易烧穿，在无电源的情况下也能够使用，所以气焊的应用环境相当广泛，不仅运用在在管道和薄壁机械的制造和安装，而且还能运用于小体量的机件和铸件的修复。","id":""}],"text":"","id":"doxcnpinDmh0Asi0dR3MKa4OjZc"},{"type":"image","attrs":{"height":567,"note":[{"type":"text","text":"气焊","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/f704d88df9e14826878d6cbe42f039a7","width":788},"text":"","id":"Fkw8dgoi4oyYeYxELHocBPUsnUe"},{"type":"paragraph","children":[{"type":"text","text":"焊证考试的技巧口诀是焊接人机料法环，操作技艺占为先。手脑合一最重要，切忌浮躁心不专。右手僵硬是大忌，内旋外旋施时变。纵横并进三方向，牢记焊接三要点。焊前组对按规范，焊条质优且要干。引燃电弧有技巧，划擦撞击可任选等等。","id":""}],"text":"","id":"doxcnX22xLHc5fXtTtYMenUBgHf"},{"type":"image","attrs":{"height":497,"note":[{"type":"text","text":"气焊","id":""}],"url":"https://p3.douyinpic.com/large/tos-cn-i-qvj2lq49k0/dbe167f486da418693afff76397d336b","width":1066},"text":"","id":"doxcn7CrJ2222suBiw4znFZQkae"},{"type":"heading","attrs":{"level":3},"children":[{"type":"text","text":"实操考核方面，需要注意的点：","id":""}],"text":"","id":"doxcn1CESKAwsFPSOv51mX0dGcf"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"1、焊接时焊条的直径应根据工件的厚度、接头的形式、焊接位置和焊接层数、焊接电流的大小来选择","id":""}],"text":"","id":"doxcnlzn5tdGqdVV8akwCzJUw5f"},{"type":"paragraph","children":[{"type":"text","text":"对于非平焊位置焊和开槽多层焊的第一层，应使用直径较小的焊条；立焊、水平焊和仰焊使用比平焊更小的电极；厚板使用更厚但不合适的电极 超过板厚。","id":""}],"text":"","id":"doxcnBiSFpJ4Zy4WrMKrMgeb4kc"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"2、收弧时注意填满弧坑","id":""}],"text":"","id":"doxcn8eiJE0RBUYFgTnyL6sZxgh"},{"type":"paragraph","children":[{"type":"text","text":"常用的焊缝收弧方法有：圆弧收弧、反复断弧和收弧、收弧外弧重焊收弧等。当一个焊道完成后，如果立即断弧，会在焊接面下方形成弧坑；弧坑过深不仅影响外观，还会削弱端部的强度，容易造成应力集中或形成弧坑裂纹。","id":""}],"text":"","id":"doxcn3n3FS41xbeTZvxydI7dz6t"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"3、引弧方式一般有：划痕引弧法和直接引弧法","id":""}],"text":"","id":"doxcnUWuzqkma6tBKH0ptSSXWjc"},{"type":"paragraph","children":[{"type":"text","text":"操作时用力要适中，行程或行程要干净利落。否则，如果引弧动作过快或电极抬高过高，难以建立稳定的电弧，启动后电弧可能会熄灭；如果引弧动作过慢，电极和工件会粘在一起，造成长期短路。使焊条过热发红，引起药效如果皮肤脱落，则无法建立稳定的电弧。","id":""}],"text":"","id":"doxcnKPQYoYeYoCMKGFHtyW9tSd"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"4、对于大间隙，一般采用三点焊，并应注意焊道的焊接顺序","id":""}],"text":"","id":"doxcn8Ze72xpat4vMMFE4HPaOQe"},{"type":"paragraph","children":[{"type":"text","text":"除了铸铁嵌件的焊接外，金属填料不适合大多数大型焊接，因为不可避免地会出现熔深不足的缺陷，焊脚的增加会影响焊件的强度。","id":""}],"text":"","id":"doxcnfjYnj152tPLjJvGXqdeMks"},{"type":"heading","attrs":{"level":4},"children":[{"type":"text","text":"5、避免磁偏吹","id":""}],"text":"","id":"doxcn8UOyelKqKiDp8d3187Rwfd"},{"type":"paragraph","children":[{"type":"text","text":"直流电弧最大的缺点是电弧会被磁吹，导致电弧不稳定，严重时无法焊接，尤其是大电流、深坡口、角焊。避免磁偏吹的措施包括：使用交流电源进行焊接，正确选择电缆接入位置，调整焊条角度。","id":""}],"text":"","id":"doxcn26R6Q22l6wsmP0XbZDxwUe"}]%3C%2Fhowto_content%3E