Part1:FrontVowels/i://i//e/œ/Let'sfirsttakealookat/i:/Practice1:LengthenthesentenceCometome!Cometoteawithme!Cometoteawithmebythesea.Ifyouarefree,cometoteawithmebythesea.Doyouagree,ifyouarefree,tocometoteawithmebythesea?Readthefollowingsentences.Payattentiontothe/i/LengthenthesentenceHe'sswimming.He'sswimmingintheriver.He'sswimmingintheriverwithTim.He'sswimmingintheriverwithTiminthisprettycity.Payattentiontothe/i:/and/i/Hisbicyclewilllasthimalongtimeifhetreatsitwell.ThreeChinesedivingteamscompetedinthenineteenninety-nine.Westillhavetimetoseethefilmonthebigscreen.Let'stakealookat/e/and/œ/Proverbs:Alliswellthanendswell.Bettertodowellthantosaywell.Birdsofafeatherflocktogether.Shortpassage:ImetalittleboyJack,Whocamefromanotherland,Icouldn'tspeakhislanguage,ButItookhimbythehand.ReadandCompare:Bead,bid,bed,badHeel,hill,hell,halNeat,nit,net,guatBeat,bit,bet,batSeat,sit,set,satEat,it,bet,atCheek,chick,check,chatSong:SheShehangsouteverydaynearbythebeach,Havingaharnicanfallingasleep,Shelookssosexywhenshe'swalkingthesand,Nobodyeverputaringonherhand,Swimtotheoceanshorefishinthesea,SheisthestorythestoryissheShesingstothemoonandthestarsintheskyShiningfromhighaboveyoushouldn'taskwhyPart2:CentralVowels/Λ//ə://ə/Let'stakealookat/Λ/LengthenthesentenceYoumustcome.Youmustcometosupper.Youmustcometosupperwithus.Youmustcometosupperwithusandjoininthefun.Don'tconfuse/ə:/and/Λ/Bird-bud;burn-bun;fern-fun;curt-cut;hurt-hut;dirt-dustShortpassage:Wormsquirmintheearth,Whenfirstisheard,Themurmurandchirp,OftheearlybirdSong:BadRomanceoh-oh-oh-oh-oooh!/caughtinabadromanceRah-rah-ah-ah-ah/mum-mum-mum-mum-mahGaga-oo-la-la/wantyourbadromanceIwantyouugly/iwantyoudisease/iwantyoureverything/aslongasit'sfreeIwantyourlove/love-love-love/iwantyourloveIwantyoudrummer/thetouchofyourhealing/iwantyouleatherdirtykissinthesceneAndiwantyourloveLove-love-lovePart3:BackVowels/a://ο//ο://u//u:/Attention:/a://o//o:/后面的/r/，也就是卷舌音