资源简介 (共149张PPT)人教版 七年级上册国际音标学好音标开好头语音的重要性:英语学习的最终目的是交际,而交际是通过口语来进行的,语音在此过程中起着至关重要的作用,所以语音是语言的基础。只有学好发音,才能加强对语言的感受,最有效地掌握语法和词汇,提高实际使用的能力。概 念音标是记录音素的符号,也是音素的标写符号。英语共有48个音素,其中元音因素20个,辅音因素28个。英语辅音和元音在语言中的作用相当于汉语中的生母和韵母。记录英语音素的符号叫音标,音标放在两条“/ /”中,以免和字母混淆。分 类 元 音(20) 单元音 (12) 长元音 /ɑ:/ / :/ / :/ /i:/ /u:/ 短元音 / / / / / / / / / / /e/ / / 双元音(8) /e / /a / / / / / /a / / / /e / / / 辅 音(28) 清辅音(11) /p/ /t/ /k/ /f/ /θ/ /s/ / / /h/ /t / /ts/ /tr/浊辅音(17) /b/ /d/ /g/ /v/ / / /z/ / / /r/ /d / /dz/ /dr//j/ /w/ /m/ /n/ / / /l/ 分 类元音辅音单元音双元音清辅音浊辅音短元音长元音概念辨析单元音&双元音:单元音为一个元音因素双元音为两个元音因素长元音&短元音:长元音发音两秒钟短元音发音一秒钟元音&辅音:元音声音无阻碍地从口腔发出辅音气流受到阻碍清辅音&浊辅音:清辅音只送气流不振动声带浊辅音只振动声带不送气流(一)元音(二)辅音单元音:“单元音435,前中后分得清;长音:短音无”前元音 /i:/ / / /e / / /中元音 / / / :/ / /后元音 /ɑ:/ / / / :/ / / /u:/Let’s learn/i:/长元音发音要领:1、舌尖抵下齿,前舌尽量抬高。2、嘴唇向两旁伸开,成扁平 。we he sheteacher speak pleasefeel tree meet needpiece长“衣”音/微笑音[i t][ki ][d i p][ i p]Let’s learn/ I // i /短元音/ I /放在音标的中间,/i/放在音标的结尾,但是如果这个单词是合成词,/i/也出现在音标中间。发音要领:1.舌尖抵下齿,舌前部抬高,比/i:/要低。2.嘴型扁平,牙床开得比/i:/宽。3.可从/i:/出发,下颚稍稍下垂,舌前部也随之稍稍下降。sit picture list mix fixpig big miss minutemany twenty happySit in your seat and listen carefully.Let’s read:Let’s listen and read/i:// I // i /长元音短元音/ I /放在音标的中间,/i/放在音标的结尾,但是如果这个单词是合成词,/i/也出现在音标中间。/ i: /Practice/ i /Practice/ I /Listen and choose/I//i:/Listen and choose/i://i/Let’s learn/e/短元音发音要领1、舌尖抵下齿,舌前部抬高,比/i:/要低。2、唇形中长,牙床开得比/i:/宽,上下齿间可容纳一个食指。bed egg bestnext better lesson pencil penany many小嘴鸡蛋音/ /发音要领:1、舌尖抵下齿;舌前部稍抬高,舌位比/e/更低;2、双唇平伸,成扁平形。张开牙床直至上下齿之间容纳食指和中指的宽度。map hat fat bad madback man hand thankLet’s learn/ /短元音I’m a cat, cat, catIn a cap, cap, cap.发音要领:1、舌尖抵下齿;舌前部稍抬高,舌位比/e/更低;2、双唇平伸,成扁平形。张开牙床直至上下齿之间容纳食指和中指的宽度。map hat fat bad madback man hand thank大嘴苹果音Let’s listen and repeat/ // :/短元音长元音/ /Practice/e/Listen and choose/e// /Let’s learn/ :/长元音发音要领:1、舌身平放,舌中部稍抬起。。2、牙床开得较狭窄,双唇和发/i:/时相似。3、注意长度,不要发得太短。嫦娥音/卷舌音[h d][w d][w k][f st]Let’s learn/ /短元音发音要领:1、舌身平放,舌中部略隆起。2、牙床半开半合,唇形扁或中圆。teacher remember player speaker farmerdoctor actordelicious dangerousdollartogether tomorrow today Washington politeago elephant banana Japan ChinahappenPractice/ :// /Listen and choose/ // :// //ɑ:/Let’s learn短元音长元音/ɑ:/Let’s learn长元音发音要领:1、舌尖离开下齿;口张大,舌身压低并后缩。2、双唇呈扁型。arm art hardfast last class fatherBark bark barkThe dog is barking after the car.大嘴感叹音/ /Let’s learn短元音发音要领:1、舌后部的靠前部分稍抬起,舌尖和舌端两侧触下齿,开口程度和/ /相似。双唇向两旁平伸。2、从元音/ / 出发,将圆唇改为扁唇,即可发出此音。up supper lunch fun cup buscome mother dose brother love abovetroublebloodEnough is enough ! Just shut up.What’s up Nothing much.Hurry up!I love China.China and America should always work together.I have to work early tomorrow.Words are not for hurting other people.Let's read together.Listen and choose/ɑ:// // // ://u:// /短元音长元音短元音长元音Let’s learn/ // :/短元音长元音Let’s learn/ :/长元音Let’s learn发音要领:1、舌尖离开下齿;舌后部抬得比/ /略高。压低并后缩。2、双唇也收得更圆更小,并需用力向前突出。3、注意长度不要发得太短。al: small wall talk tall hall ball call walkor:short more horse for forty sport story door floorcaught daughterau: autumn August bought warm圆唇突出长哦音/ /短元音Let’s learn发音要领:1、舌尖离开下齿;口张大,舌身压低并后缩。2、双唇稍稍收圆。3、可先发/ɑ:/音,然后将舌身再稍稍向后缩,双 唇稍稍收圆(不要突出),即可发出/ /。o: hot lost lot fox box mop hop loss dollara: want wash watchau: becauseBob Bob Bobis an orange dog./u:// /短元音长元音Let’s learn/u:/长元音Let’s learn发音要领:1、双唇比/ /收得更圆更小,向前突出,舌后部比/ /抬得 更高。2、注意长度,不要发得太短,口腔肌肉要始终保持紧张状态。o: do shoe whooo: food too moon noonu: true blue火车鸣笛音/zu //tu /[fu d][ru d][hu p]/ /短元音Let’s learn发音要领:1、舌尖离开下齿;舌后部向软腭抬起,舌身后缩。2、双唇收圆,稍向前突出。oo: look good foot book woodou: should couldu: put pushO: womanPractice/ :// //u:// //u:// /Listen and choose/ // :/Listen and choose双 元 音双元音双元音音素由两个元音组成,发音时由一个元音向另一个元音滑动,口型有变化。前一个元音发音清晰响亮,且时间长;后一个元音发音模糊软弱,且时间短。特别要注意的三点是:(1)不要将前后两个音断开,应连贯成为一个整体:(2)不要因为后一个元音发音短小而将其忽略;(3)发音时滑动过程要完整,时间要充分。Let’s learn/eI//aI/双元音/ I/常发这个元音的字母是“a”,此外,还有字母组合“ai”、“ea”、“eigh”、“aigh”、“ay”、“ey”等 .发音要领:1.口形由/e/向/ /滑动。2. 发音过程中下颚向上合拢,舌位也随之稍稍抬高。/eI/Let’s learn应答音/me t/ /he t / /we k/发音要领:1.先发/a/音,然后滑向/i/音。舌尖抵住下齿。2.发此音的关键是要把/a/音发足,注意从开到合的滑动。常发这个音的字母是“i”和“y”,字母组合则有:“ey”、“ie”、“ui”、“uy”、“igh”、“eigh”等/aI/Let’s learn叹气音/na s/ [wa t] [la ]/aI/Practice/eI// I/[ ]发音要领:1.这是个双元音,由两个元音构成,第一个是/ /和 短音/i/.2.发音时由第一个音向第二个音滑动,不到第二个音就结束。常发这个音的是字母组合:“oi”和“oy”。boy toy destroy noise oil spoil pointLet’s learnListen and choose/eI//aI// I/Listen and number123/eI//aI// I//aI// I//eI// //a /双元音Let’s learn发音要领:1.由两个元音构成,第一个音是“短音”/ /,第二个音是“短乌音”/u/。2. 发音时,先打开下颔骨,嘴唇略微呈圆形,口形较大,舌端离下齿,舌身放低后缩,舌后部微抬起,然后随着发音过程的变化口形收圆缩小,舌后部继续向后缩并抬起。常发这个音的有字母“o”、字母组合“oa”、“ou”、“ow”、“ew”以及“ough”等Let’s learn惊讶音/n / [k t] [d k][au] ou: house out south cloud house proud loud mouse round about mouthow flower down now cow how town发音要领:发音时,由/a/滑向/u/,结束时双唇收圆稍向前突。狼嚎音/痛叫音Let’s learn/ha s/ [wa ] [ma s]/ /Practice/a /Listen and choose/ //a /双元音Let’s learn/ //e // /发音要领:是双唇张开,从/i/音滑向/ /音。前面的/i/发得较清楚,后面的/ /或较弱。双唇始终半开。此音一定要发足。舌抵下齿逐渐过渡为上卷,从“一”音过渡到“厄”。eer: beer deerear: ear dear nearere: hereea: idea/ /发音要领:由/e/向/ /滑动,舌身稍向后 缩,口型由半开变为扁平。ear: pear bearair: chair air fair hair pairare: care hareere: there where cheer/e /oor: poorure: sure sure pure[u ]发音要领:发音时,嘴唇从收圆到半开。发好这个音的关键是首先要把/u/音发足,然后滑向/ /音。Practice/ // //e /Listen and choose/ //e /Listen and choose/e // /辅 音辅 音辅音按发音时声带的振动模式,可以分为清辅音和浊辅音两大类。气流不受器官阻碍(声带不振动)的称为清辅音。受器官阻碍(声带振动)的称为浊辅音。清浊爆破音Let’s learn/ p // b /清辅音浊辅音Let’s learn/ t // d /清辅音浊辅音Practice/ t /Practice/ d /Practice/ p /Practice/ b /Listen and choose/p//b/Listen and choose/t//d/Let’s learn清辅音/ k // g /浊辅音/k/Practice/g/Listen and choose/k//g/Let’s learn清辅音/ s // z /浊辅音Practice/s//z/Listen and choose/s//z/Let’s learn/ f // v // h // r /清辅音浊辅音清辅音浊辅音/f//v//h//r/Listen and choose/v//f/Listen and choose/r//h/Listen and number/h//r/1234/f//v//h//r//f// /Let’s learn/ // /清辅音浊辅音Practice/ // // // /Listen and choose辅 音——舌 边 音Let’s learn/ l /边音乐/l/Practice清辅音Let’s learn/ θ // /浊辅音/ θ /Practice/ /Listen and choose/θ// /Let’s learn/ t // d /清辅音浊辅音Practice/t //d /Listen and choose/t //d /Let’s learn/ tr // dr /清辅音浊辅音Let’s learn/ ts // dz /清辅音浊辅音Practice/ ts // tr // dr // dz /What is missing Practice/ ts // tr // dr // dz /What is missing Practice/ ts // tr // dr // dz /What is missing Practice/ ts // tr // dr // dz /What is missing Fast reaction/ dz // tr // ts // dr /Practice/ dr // dz // tr // ts /Listen and choose/dr//tr/Listen and choose/dz//ts/Listen and number1234/ts//dz//dr//tr//ts//dz//dr//tr/辅 音——鼻 音Let’s learn/m// n // /鼻音妈妈音撒娇音奶奶音Let’s learn/w// j /半元音/m//n// /Practice/w//j/What is missing /m//n// /Practice/w//j/What is missing /m//n// /Practice/w//j/What is missing /m//n// /Practice/w//j/What is missing /m//n// /Practice/w//j/What is missing Fast reaction/w/Fast reaction/n/Fast reaction/ /Fast reaction/j/Fast reaction/m/Practice/ //m//j//w//n//m//n// //w//j/Listen and choose/n// /Listen and choose/m//n/Listen and choose/w//j/Listen and number1234/w//j// //n//w//j// //n//m/5/m/音素和国际音标长元音 [i:] [ :] [ :] [u:] [ɑ:] 短元音 [ ] [ ] [ ] [u] [ ] [e] [ ]双元音 [e ] [a ] [ ] [ ] [ ] [u ] [ u] [au]元音清辅音 [p] [t] [k] [f] [θ] [s]浊辅音 [b] [d] [ɡ] [v] [ ] [z] 清辅音 [ ] [h] [ ] [ ] [tr] 浊辅音 [ ] [r] [ ] [ ] [dr] 鼻音 [m] [n] [ ] 舌边音 [l] 半元音 [j] [w]辅音SummaryLet's read together.a字母组合al1423ayarairasseaeaeeeaereareaearereere字母组合14510986237ighi字母组合ir12o字母组合10981456237111213oyouowowoaorourouoooororongoouru字母组合There is a little bee.Coming from the apple tree.Flying in the flowers.And can’t see me.The brown cow is out now.Bark.Bark.Bark.The dog is barking after the car.Look.This is little John.Goes to bed with his trousers on.One shoe off and one shoe on.Look.This is little John.1. The baby and the lady are playing by the lake.2. The four tall reporter are talking about sports.3. I like the toy bear.I often brush its hair.I have a pear near the chair.4.Today is cold.Don’t forget to put on your coat.Youcan go to school by boat.5.Kate often makes birthday cakes on holiday. 6.David is saying”Maybe Kate can’t skate.”7.The ugly man has one hundred ducks.8.The farmer has a large farm and a car.9.After art class we put down sunglasses and sit on the grass.10.Miss Mo, She’s tall.She has a dog, it’s small.She likes walking and riding a horse.1. The baby and the lady are playing by the lake.2. The four tall reporter are talking about sports.3. I like the toy bear.I often brush its hair.I have a pear near the chair.4.Today is cold.Don’t forget to put on your coat.Youcan go to school by boat.5.Kate often makes birthday cakes on holiday. 6.David is saying”Maybe Kate can’t skate.”Tomorrow is my birthday.But I have a stomachache.My parents always say:Don't eat too much cake.Don't forget. Kate!Ok.Ok.Ok. 展开更多...... 收起↑ 资源预览