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1、Unit3ComputersThe3rdperiod:learningaboutLanguage---thePresentPerfectPassiveVoiceGoals:1.LearnthePresentPerfectPassiveVoice.2.Helpthestudentsmasterthewayofusingthecorrectvoice,tellingthedifferencesbetweentheactivevoiceandthepassivevoice.TeachingProcedures:Step1:Revisiona
2、ndlead-in1.CheckthehomeworkfirstEx1:1totally 2revolution 3artificialintelligence4birth 5simple-minded 6goby 7dealwith 8network 9truly10anywayEx2:revolution;network; wentby;totally;truly;simple-minded;Anyway;dealwithEx3:1 totally 2amazed 3exciting 4excited 5cheaply6unluc
3、ky2.Lead-inSay:Areyoufamiliarwiththesecomputers?Canyoucallthem?(asktheSstodistinguishdifferenttypesofcomputers.)Doyouknowthesenewinventionsofcomputer?Awrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped.(showthemsomepicturesandaskthemtomakesomes
4、entences,usingthePresentPerfectPassiveVoice.)Eg:It’sratherahotdaytoday!Wouldyouliketohaveaswimafterschool?HaveyoueverswumintheBlueWaterWorld（蓝色水世界）intheOrientalSuntown(东方太阳城)whichhasbeensetupinTaizhou?Thereabeautifulswimmingpoolhasbeenbuilt.Manyhighbuildingshavebeensetu
5、p.Lotsofflowersandtreeshavebeenplanted.Anewbridgehasbeencompleted….Step2:DiscoveringAsktheSstodiscoverwhetherthesesentenceshavesomethingincommon..Helpthemtolearntheusefulstructure:thePresentPerfectPassiveVoice.Step3:Discussion:learningthestructureGivesomeexplanations1构成
6、：主动语态被动语态现在完成时have/hasdone----------àhave/hasbeendoneHehasbeensenttostudythenewtechnologyinthecompany.Thedirtyclotheshavenotbeenwashed.Havethewindowsbeencleaned?Howmanyshoppingcentershavebeenbuiltinthiscity?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,di
7、sappear,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：ThechildhasbeentakengoodcareofbyGrandmaWangalltheseyears.AnoticehasbeenputuponthewallStep4
8、:Practiceandexercises1.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.!).Wehavecompletedallthepr
