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1、Nasals,Approximants&Lateral//////////Nasals,Approximants&Lateral(s)Likethestops,thenasalsareallmadebyclosingthevocaltractatsomepointinthemouth.Unlikethestopsoranyothersoundsinthelanguage,thereisanopeningintothenasalcavityinthepronunciationsothatthesoundcanbereso
2、natedthroughthenose.Thenasalconsonantsare/m/,/n/,and//./w/,/r/,and/j/arecalledapproximantsbecauseitisanarticulationinwhichthearticulatorsapproacheachotherbutdonotgetsufficientlyclosetoeachothertoproducea"complete"consonantsuchasastop,nasalorfricative./l/iscalleda"la
3、teral"becauseduringitspronunciation,thepassageofairthroughthemouthdoesnotgointheusualwayalongthecentreofthetongue.UNIT9//////汉英对比：//浊辅音.发音时,双唇闭拢,气流从鼻腔泻出,声带振动.//的发音近似于汉语的“母”,但区别之处在于发/m/时要双唇紧闭,声带振动.//浊辅音.发音时,舌尖贴上齿龈,形成阻碍,气流从鼻腔泻出,声带振动./n/的发音接近于汉语的“恩”,但不同之处在于发//时，嘴
4、唇微开,舌尖贴紧上齿龈.//浊辅音.舌后部抬起紧贴软腭,形成阻碍,同时软腭下垂,堵住口腔通道,气流从鼻腔泻出,声带振动.//的发音近似于汉语“嗯”,但不同之处在于：发//时口腔开得更大,声带振动.//////&////单词发音练习moonhomemedicinemountain//短语man-madecometomorrowmakeamistakemiddlename//句子A:Mumhascomebackhome.B:Marvellous.A:Mumsayswe’llgoandseeamovietonigh
5、t.B：Yes,wecertainlywill.Allophonicvariationsof/m/Syllabic:somethingLengthened,whenanarresting/m/isfollowedbyareleasing/m/:somemoreThelabiodnetalnasal,whenfollowedby/f/:comfort//单词发音练习necktinnightnoise//短语neatbrandytelephonenumberanegativeanswerhardentheneck//句子A:W
6、hatanicepostcardoftheGrandCanyon!B:TheyarewonderfulA:Whosentittoyou?B：Afriendofmine.Allophonicvariationsof/n/Dentalizedbeforealabiodental/f/or/v/:inviteVelarizedbefore/k/or//:thinkSyllabic:buttonLengthening,when/n/arrestsandreleasesadjoiningsyllables:tennames//单词发音
7、练习inkringsingmonkey//短语ring-a-dingstrongstringrisingdiphthongplayingping-pong//句子A:Doyoulikedrinkingtea?B:Yes,Ido.A:Weareadvisedtodrinkmoreteathancoffee.B：Teaisgoodforhealth.Allophonicvariationsof//Thealveolar[n],whenfollowedbyanalveolar:takingtenSyllabic:lockandk
8、eyExercises1.Practisethephoneme/m/inman,firstnormally,thenwithexaggeration,thennormally.Listenandrepeat.//,/…/,//2.Somestu
