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1、2019-2020年高中英语《Unit3puters》学案新人教版必修2The3rdperiod:learningaboutLanguage---thePresentPerfectPassiveVoiceGoals:1.LearnthePresentPerfectPassiveVoice.2.Helpthestudentsmasterthewayofusingthecorrectvoice,tellingthedifferencesbetweentheactivevoiceandthepassiv
2、evoice.TeachingProcedures:Step1:Revisionandlead-in1.CheckthehomeworkfirstEx1:1totally 2revolution 3artificialintelligence4birth 5simple-minded 6goby 7dealwith 8network 9truly10anywayEx2:revolution;network; wentby;totally;truly;simple-minded;Anyway;dea
3、lwithEx3:1 totally 2amazed 3exciting 4excited 5cheaply6unlucky2.Lead-inSay:Areyoufamiliarwiththeseputers?Canyoucallthem?(asktheSstodistinguishdifferenttypesofputers.)Doyouknowthesenewinventionsofputer?Awrist-wornPChasbeeninventedrecently.Apen-likepute
4、rhasalreadybeendeveloped.(showthemsomepicturesandaskthemtomakesomesentences,usingthePresentPerfectPassiveVoice.)Eg:It’sratherahotdaytoday!Wouldyouliketohaveaswimafterschool?HaveyoueverswumintheBlueWaterWorld（蓝色水世界）intheOrientalSuntown(东方太阳城)whichhasbe
5、ensetupinTaizhou?Thereabeautifulswimmingpoolhasbeenbuilt.Manyhighbuildingshavebeensetup.Lotsofflowersandtreeshavebeenplanted.Anewbridgehasbeenpleted….Step2:DiscoveringAsktheSstodiscoverwhetherthesesentenceshavesomethinginmon..Helpthemtolearntheusefuls
6、tructure:thePresentPerfectPassiveVoice.Step3:Discussion:learningthestructureGivesomeexplanations1构成：主动语态被动语态现在完成时have/hasdone----------àhave/hasbeendoneHehasbeensenttostudythenewtechnologyinthepany.Thedirtyclotheshavenotbeenwashed.Havethewindowsbeencl
7、eaned?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,disappear,fail,remain,lie,last,sit,stand,breakout,etrue,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。
8、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:Practiceandexercises1.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.!).Wehavepletedalltheprepara
