unit 3 computers

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1、Unit3Computers:第!二”教.育2资B源j网}　　Unit3Computers　　The3rdperiod:learningaboutLanguage　　---thePresentPerfectPassiveVoice　　Goals:1.LearnthePresentPerfectPassiveVoice.　　2.Helpthestudentsmasterthewayofusingthecorrectvoice,tellingthedifferencesbetweentheactivevoice

2、andthepassivevoice.　　TeachingProcedures:　　Step1:Revisionandlead-in　　1.Checkthehomeworkfirst　　Ex1:　　1totally　2revolution　3artificialintelligence4birth　5simple-minded6goby　　7dealwith8network　9truly10anyway　　Ex2:　　revolution;network;wentby;totally;truly;simpl

3、e-minded;Anyway;dealwith　　Ex3:　　1totally2amazed3exciting4excited　　5cheaply6unlucky　　2.Lead-in　　Say:Areyoufamiliarwiththesecomputers?Canyoucallthem?(asktheSstodistinguishdifferenttypesofcomputers.)　　Doyouknowthesenewinventionsofcomputer?　　Awrist-wornPChasbe

4、eninventedrecently.　　Apen-likecomputerhasalreadybeendeveloped.　　(showthemsomepicturesandaskthemtomakesomesentences,usingthePresentPerfectPassiveVoice.)　　Eg:It’sratherahotdaytoday!Wouldyouliketohaveaswimafterschool?　　HaveyoueverswumintheBlueWaterWorld（蓝色水世界

5、）intheOrientalSuntown(东方太阳城)whichhasbeensetupinTaizhou?　　Thereabeautifulswimmingpoolhasbeenbuilt.　　Manyhighbuildingshavebeensetup.　　Lotsofflowersandtreeshavebeenplanted.　　Anewbridgehasbeencompleted….　　Step2:Discovering　　AsktheSstodiscoverwhetherthesesenten

6、ceshavesomethingincommon..Helpthemtolearntheusefulstructure:thePresentPerfectPassiveVoice.　　Step3:Discussion:learningthestructure　　Givesomeexplanations　　1构成：　　主动语态被动语态　　现在完成时have/hasdone----------àhave/hasbeendone　　Hehasbeensenttostudythenewtechnologyinthe

7、company.　　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,disappear,fail,remain,lie,last,sit,stand,breakout,cometrue,belongto等．如：　

8、　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.　　Anoticehasbeenputuponthewall　　S