家教英语音标系统一单元一、有48个音标，分元音和辅音两大类。元音20个，辅音有28个。元音又分为单元音和双元音。单元音按舌位分为前元音、中元音和后元音。辅音按声带震动与否分为清辅音和浊辅音。按不同发音方式可分为爆破音、摩擦音、破擦音、鼻音、舌边音、半元音。二、元音分类。单元音：1、前元音：/i://I//e//æ/2、后元音：/ɑ://ɒ//ɔ://ʊ//U:/3、中元音：/ɜ://ʌ//ə/双元音：/eɪ//əʊ//aɪ//aʊ//ɔɪ//ɪə//eə//ʊə/三、辅音分类1、爆破音：/p//b//t//d//k//g/2、摩擦音：/f//v//θ//ð//s//z//ʃ//ʒ//r//h/3、破擦音：/tʃ//dʒ//tr//dr//ts//dz/4、鼻音：/m//n//ŋ/5、舌边音：/ǀ/6、半元音：/w//j/二单元1、/i:/leafcheeseteaweekteammeat2、/I/sittaxivisitunitpizzagym3、/e/leftheadcherryweatherbest4、/æ/adbackbadhavemap二、后元音1、/ɑ:/gardengrasslargemarketfastfarm2、/ɒ/acrossboxdogoffhotdoctor3/ɔ:/walkwarmwallformlawairport4/ʊ/booklookshouldputpushwould5/U:/coolgroupthroughrulecutetooth三、中元音1、/ɜ:/curlydirtynursesirturnwork2、/ʌ/uglyupstairsjustfunonion3、/ə/abouttigerteacherpolicedoctor四、双元音1、/eɪ/waiterplayrainpaychange2、/əʊ/videoshowovergono3、/aɪ/tigershineheightridelike4、/aʊ/outhowcloudyaboutshout5、/ɔɪ/boyjoyjoinnoisevoice6、/ɪə/beardearideahearmedium7、/eə/wearupstairschairpair8、/ʊə/tourpoorsurecruelrural第三单元辅音爆破音：/p/poppostparkpandapizza/b/terriblehobbybackbadbox/t/taketeatalktest/d/directheaddoblonde/k/keykindkoalacatback/g/gardengoodguess摩擦音：/f/falsefeelfaceawful/v/vacationarriveavenuegive/θ/thinkthiefthinbirth/ð/theirthisrather/s/satsectionsizeperson/z/visitzoousecheese/ʃ/sheAsiadelicious/ʒ/garagelarge/r/rainreadrelax/h/hehairhall破擦音：/tʃ/chinacheeseculture/dʒ/changejokejuice/tr/countrytruetree/dr/drawdrydrink/ts/wantsreststests/dz/adsridesfriends鼻音：/m/memapamazing/n/sonmindrain/ŋ/singerblanksong舌边音：/ǀ/元音前读清晰的/ǀ/；在辅音前或词末发含糊的/ǀ/。Longleftlikeoldrulefalse半元音：/w/wewaitwalkwhat/j/yesyouyearunit