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..RevisionCheckthehomeworkexercises.Ex1:1totally2revolution3artificialintelligence4birth5simple-minded6goby7dealwith8network9truly10anywayEx2:revolution;network;wentby;totally;truly;simple-minded;Anyway;dealwithEx3:1totally2amazed3exciting4excited5cheaply6unlucky.Lead-inLead-inAreyoufamiliarwiththesecomputers?Canyoucallthem?palmtoppalmtoplaptop/notebooklaptop/notebookdesktopPCdesktopPC.WWPCWWPCwrist-worn/wearablewrist-worn/wearablePCPCAwrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped..ThenewcampusofTianTaiHighschoolhasalreadybeenbuilt..Thehouseshavebeendestroyedbythestorm..CanyoumakemoreCanyoumakemoresentences,usingsentences,using““have/hasbeendonehave/hasbeendone“?“?.TheSuntownhasbeensetupinTaizhou.Manyhighbuildingshavebeenbuiltthere.Abigswimmingpoolhasalsobeenbuilt..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..A.---What’shappeninginthenewarea?B.---Newhouses_______recentlyoverthere.C.arebuiltB.builtC.havebuiltD.D.havebeenbuilt2.Thisisaphotoofthepowerstationthat______inmyhometown.A.hassetupB.hasbeensetupC.wassetupD.issetup3.Thereisapolicecarinfrontofourneighbor’shouse.Whatdoyousuppose_______?A.didhappenB.hashappenedC.ishappenD.hasbeenhappenedDBBExercises:Choosethebestanswers.5.Everypossiblemeans_______topreventtheairpollution,buttheskyisstil...