fricatives摩擦音

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1、fricatives/fricativeconsonants(摩擦音)mannerofarticulation:Forallthefricativestheaircomesoutthroughanarrowopening/passage,causingthefriction-likesound.Thereare9fricatives,formingthelargestsetofconsonantsinEnglish./f/&/v/;/T/&/D/;/s/&/z/;/S/&/Z/;/h/fricatives/fricativeconsonants(摩擦音)/f/,

2、/v/Formanarrowopening:puttheupperteethonthelowerlip.Lettheairbreatheoutthroughthenarrowopeningbetweentheupperteethandthelowerlip/f/:voiceless/v/:voicedplaceofarticulation:labio-dental(唇齿音)fricatives/fricativeconsonants(摩擦音)/T/,/D/Formanarrowopening:putthetipofthetongueagainsttheupper

3、teethorbetweentheupperteethandthelowerteeth.Lettheairbreatheoutthroughthenarrowopeningbetweenthetipofthetongueandtheteeth/T/:voiceless;/D/:voicedplaceofarticulation:dental(齿音)fricatives/fricativeconsonants(摩擦音)/s/,/z/Formanarrowopening:putthetipandbladeofthetonguetowardstheupperteeth

4、ridge/putthetipofthetongueatthebackoftheupperorthelowerteeth.Lettheairbreatheoutthroughthenarrowopeningbetweenthetipandthebladeofthetongueandtheupperalveolarridge./s/:voiceless;/z/:voicedplaceofarticulation:alveolar(齿龈音)fricatives/fricativeconsonants(摩擦音)/S/,/Z/Formanarrowopening:pro

5、trudethelips,movethetonguealittlebitbackward,raisethefrontofthetonguetowardsthehardpalatewiththetippointingtowardsthealveolarridge.Lettheairbreatheoutthroughthenarrowopeningbetweenthefrontofthetongueandthehardpalate,thetipofthetongueandthealveolarridge./S/:voiceless;/Z/:voicedplaceof

6、articulation:palato-alveolar(齿龈硬腭音)fricatives/fricativeconsonants(摩擦音)/h/Openthemouthandsighinarelaxedmanner,withoutvoice.Theairpassesthroughtheglottis.placeofarticulation:glottal(声门音)voicelessfricatives/fricativeconsonants(摩擦音)Practice:Actoutthefollowingdialogueswithyourpartner.zipc

7、odeVeronica:Keith,whatdoesBeijing’szipcodestartwith?Keith:ThezipcodeforBeijingstartwith10,andmycompany’szipcodeis100033.fricatives/fricativeconsonants(摩擦音)alazythinginaverycoldweatherYvonne:Zoe!Getup,youlazything!It’snearlylunchtime.Zoe:IknowIamalazybone,Yvonne.ButTheweatherisverycol

8、d;itszerodeg