7.双元音/ei//ai/发音状态解析/ei/该音是合口双元音。舌位：将舌尖抵住前下齿，舌前部抬向硬腭，高度为中高，声带振动。/ai/该音是合口双元音。舌位：先将舌身平放在口腔中，声带振动。发/ai/音时，音长要足够，如果音长过短，音质就发生变化，与前元音/æ/混淆。分解式拼读练习/pei//peis//pai//pais//wei//weiz//wai//waiz//mei//mein//mai//main//sei//seit//sai//sait/plate/pleit/shame/eim/ʃsteak/steik/play/plei/dayafterdaystayawakealazyafternoongoawayFriday/fraidei//fraidi/mind/maind/die/dai/tie/tai/liedownbrightsunshinefindsomesignsbehindthetimesA:whydoesyourfacelooksopale?B:Idon'tknowwhy,butIalwaysfeeltired.A:Ithinktodayyou’dbetterpayavisittothedoctor.8、双元音/i//iɔə/发音状态解析/i/ɔ该音是合口双元音。舌位：舌身平放于口腔中，先发圆唇音//ɔ，然后滑向放松的高位前元音/I/，舌身抬向硬腭/I/是高度。这一滑动过程中形成的音便是/i/ɔ，声带振动。/iə//iə/是集中双元音。舌位：发音时，舌身从前元音/I/的近似位置向/ə/的方向滑动。在整个滑动过程中，唇形是非圆形唇，唇由扁到开，声带振动。分解式拼读练习/pi//pis//piə//piəs/ɔɔ/ki//kip//piə//piəp/ɔɔ/wi//wiz//wiə//wiəs/ɔɔ/ni//niz//niə//niəz/ɔɔnoise/niz/ɔtoy/ti/ɔcoin/kin/ɔjoy/di/ʒɔoilandvinegar/`vinigə/aspoiledboybeloyaltoone’snationemploystheprofessorasanadvisertear/tiə/sneer/sniə/idea/ai`diə/theatre/`θiətə/yearinyearoutbeallearsanidealtheatreaseriousengineerA:Icanhearthatsomeoneissobbingnearthetheatre.B:Oh,youarereallysharp-eared.Whynotgoandhavealook?A:Ihaveanappointmentrightnow.
