[必修2]Unit 3《Computers learning about Language》教案

《[必修2]Unit 3《Computers learning about Language》教案》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Unit3ComputersThe3rdperiod:learningaboutLanguage---thePresentPerfectPassiveVoiceGoals:1.LearnthePresentPerfectPassiveVoice.2.Helpthestudentsmasterthewayofusingthecorrectvoice,tellingthedifferencesbetweentheactivevoiceandthepassivevoice.TeachingProcedures:Step1:Revisionandlead-in1.Checkthehomeworkfir

2、stEx1:1totally　2revolution　3artificialintelligence4birth　5simple-minded 6goby 7dealwith 8network　9truly10anywayEx2:revolution;network; wentby;totally;truly;simple-minded;Anyway;dealwithEx3:1 totally 2amazed 3exciting 4excited 5cheaply6unlucky2.Lead-inSay:Areyoufamiliarwiththesecomputers?Canyoucallth

3、em?(asktheSstodistinguishdifferenttypesofcomputers.)Doyouknowthesenewinventionsofcomputer?Awrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped.(showthemsomepicturesandaskthemtomakesomesentences,usingthePresentPerfectPassiveVoice.)Eg:It’sratherahotdaytoday!Wouldyouliketohavea

4、swimafterschool?HaveyoueverswumintheBlueWaterWorld（蓝色水世界）intheOrientalSuntown(东方太阳城)whichhasbeensetupinTaizhou?Thereabeautifulswimmingpoolhasbeenbuilt.Manyhighbuildingshavebeensetup.Lotsofflowersandtreeshavebeenplanted.Anewbridgehasbeencompleted….Step2:DiscoveringAsktheSstodiscoverwhetherthesesenten

5、ceshavesomethingincommon..Helpthemtolearntheusefulstructure:thePresentPerfectPassiveVoice.Step3:Discussion:learningthestructureGivesomeexplanations1构成：主动语态被动语态现在完成时have/hasdone----------àhave/hasbeendoneHehasbeensenttostudythenewtechnologyinthecompany.Thedirtyclotheshavenotbeenwashed.Havethewindowsb

6、eencleaned?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：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：

7、ThechildhasbeentakengoodcareofbyGrandmaWangalltheseyears.AnoticehasbeenputuponthewallStep4:Practiceandexercises1.ChangethefollowingsentencesintothePresentPerfectPassiveVoice.!).Wehavecompletedallthepr