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1、Unit3ComputersThe3rdperiod:learningaboutLanguage---thePresentPerfectPassiveVoiceGoals:1.LearnthePresentPerfectPassiveVoice.2.Helpthestudentsmasterthewayofusingthecorrectvoice,tellingthedifferencesbetweentheactivevoiceandthepassivevoice.TeachingProcedure
2、s:Step1:Revisionandlead-in1.CheckthehomeworkfirstEx1:1totally 2revolution 3artificialintelligence4birth 5simple-minded 6goby 7dealwith 8network 9truly10anywayEx2:revolution;network; wentby;totally;truly;simple-minded;Anyway;dealwithEx3:1 totally 2amazed
3、 3exciting 4excited 5cheaply6unlucky2.Lead-inSay:Areyoufamiliarwiththesecomputers?Canyoucallthem?(asktheSstodistinguishdifferenttypesofcomputers.)Doyouknowthesenewinventionsofcomputer?Awrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeend
4、eveloped.(showthemsomepicturesandaskthemtomakesomesentences,usingthePresentPerfectPassiveVoice.)Eg:It’sratherahotdaytoday!Wouldyouliketohaveaswimafterschool?HaveyoueverswumintheBlueWaterWorld（蓝色水世界）intheOrientalSuntown(东方太阳城)whichhasbeensetupinTaizhou?T
5、hereabeautifulswimmingpoolhasbeenbuilt.Manyhighbuildingshavebeensetup.Lotsofflowersandtreeshavebeenplanted.Anewbridgehasbeencompleted….Step2:DiscoveringAsktheSstodiscoverwhetherthesesentenceshavesomethingincommon..Helpthemtolearntheusefulstructure:thePr
6、esentPerfectPassiveVoice.Step3:Discussion:learningthestructureGivesomeexplanations1构成：主动语态被动语态现在完成时have/hasdone----------àhave/hasbeendoneHehasbeensenttostudythenewtechnologyinthecompany.Thedirtyclotheshavenotbeenwashed.Havethewindowsbeencleaned?Howmany
7、shoppingcentershavebeenbuiltinthiscity?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
8、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:Practiceandexercises1.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.!).Wehavecompletedallthepr
