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Lead-inAreyoufamiliarwiththesecomputers?Canyoucallthem?palmtoplaptop/notebookdesktopPCWWPCwrist-worn/wearablePCAwrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped.Thehouseshavebeendestroyedbythestorm.Lotsofbeautifulflowersandtreeshavebeenplanted.Anewbridgehasbeencompleted.1.Astheyearhavegoneby,Ihavebeenmadesmallerandsmaller.2.Awrist-wornPChasbeeninventedrecently.3.ManynewbuildingshavebeenbuiltinTianTaisince1990.4.AnewlibraryhasalreadybeenbuiltinTianTaiHighschool.5.Thehouseshavebeendestroyedbythestorm.6.Severalsoldiershavealreadybeenkilledintheconflict.Dotheunderlinedpartshavesomethingincommon?Discovering:1构成：主动语态被动语态现在完成时have/hasdoneHehasbeensenttostudythenewtechnologyinthecompany.Thedirtyclotheshavenotbeenwashed.Havethewindowsbeencleaned?Howmanyshoppingcentershavebeenbuiltinthiscity?ThePresentPerfectPassiveVoice（现在完成时的被动语态）have/hasbeendoneLearningthestructure:2.只有及物动词才有被动语态，不及物动词（词组）没有被动语态,如:happen,takeplace,die,appear,disappear,fail,remain,lie,last,sit,stand,breakout,cometrue,belongto等．如：Whathashappenedtoyourbrother?3．但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语态。但短语动词是一个不可分割的整体，变为被动语态时，不可丢掉构成短语的介词或副词。如：eg1)ThechildhasbeentakengoodcareofbyGrandmaWangalltheseyears.Anoticehasbeenputuponthewall.Example:Ihavereadthisbookmanytimes.Thisbookhasbeenreadmanytimes.1.Wehavecompletedallthepreparationsforthetask,andwe’rereadytostart.2.Thiscompanyhasproducednewtypesofcomputers.3.Theyhaveinterviewedseveralteachersforthejob.4.Georgehassentsometextsandpicturestohisfriend’scellphone.5.Theyhavedevelopedsomeprogrammesforthehumanresourcedepartmentoftheircompany.1.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.Practice:2.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.Puttheverbsintocorrectform.Recentlywehaveboughtanewpersonalcomputer.Wehaveusedthecomputereverydaysinceweboughtit.WehavejustjoinedourcomputertotheInternet.However,wehavefoundmanyproblemswithit.Sowehavedecidedtoaskaprofessionalmantofixit.Soonhehasfixedthecomputer.HehasbuiltaPCwaywewanted.Howexcitedweare!ThesedayswehavewrittenalotofE-mailsonthecomputer.Wehavedecidedtowriteareportaboutthepositiveandthenegativeeffectsofusingcomputers.1.---What’shappeninginthenewarea?---Newhouses_______recentlyoverthere.A.arebuiltB.builtC.havebuiltD.havebeenbuilt2.Thisisaphotoofthepowerstationthat______inmyhometown.A.hassetupB.hasbeensetupC.wassetupD.issetup3.Thereisapolicecarinfrontofourneighbor’shouse.Whatdoyousuppose_______?A.didhappenB.hashappenedC.ishappenD.hasbeenhappenedDBBExercises:Choosethebestanswers5.Everypossiblemeans_______topreventtheairpollution,buttheskyisstillnotclear.A.isusedB.areusedC.hasbeenusedD.havebeenused6.Nopermission_______foranyonetoentertheBuilding.A.hasbeengivenB.hasgivenC.hastogiveD.hasbeengiving7.Thepolicefoundthatthehouse_______andalotofthings_____.A.hasbrokeninto;hasbeenstolenB.hadbrokeninto;hadbeenstolenC.hasbeenbrokeninto;stolenD.hadbeenbrokeninto;stolenCAD8.Allthepreparationsfortheproject_______,Andwe’rereadytostart.A.completedB.hadbeencompletedC.completeD.havebeencompleted9.Greatchanges________inthecity,andalotoffactories________.A.havebeentakenplace;havebeensetupB.havetakenplace;havebeensetupC.havetakenplace;havesetupD.weretakenplace;weresetup10.Thebook________underthebenchfortwodays.A.hasputBhasbeenlyingC.hasbeenputD.hasbeenlaidDBB1.---Howlong_____atthisjob?---Since1990.A.wereyouemployedB.haveyoubeenemployedC.hadyoubeenemployedD.willyoubeemployed2.Whenandwheretogofortheon-salaryholiday___yet.(2003上海春季)A.arenotdecidedB.havenotbeendecidedC.isnotbeingdecidedD.hasnotbeendecided3.Allthepreparationsforthetask___,andwe’rereadytostart.(2000北京春季)A.completedB.completeC.hadbeencompletedD.havebeencompletedBD高考链接:D