新人教版高中英语必修二Unit3_Learning_about_language课件.ppt

Unit3Computers,LearningAboutLanguage,Thehistoryofcomputers,thesecondgeneration(1956-1963),thethirdgeneration(1964-1971),thefourthgeneration(1971-),Thefirstgeneration(1945-1956),calculatingmachine,Pc(desktop/notebook),analyticalmachine,universalmachine,artificialintelligence,Internet,.,Listen,ReadandTalk,Revision,.,Translation:,1.依你们看,我该怎么办?2.他们无共同之处.3.他是一个头脑简单的人.4.他跑得太快,我赶不上他.,Inyouropinion,whatshouldIdo?,Theyhavenothingincommon.,Heisasimplemindedman.,HeransofastthatIcouldntcatchupwithhim.,5.你将怎样处理这场车祸?,Howwillyoudealwiththecaraccident?,Presentation,ActivevoiceorPassivevoice?1.Theoldmanhasbeendeadfortwoyears.2.Theyhavedonethejob.3.Thehousehasbeenbuiltfor3years.,PassiveVoice,-,现在完成时被动语态谓语:has/have+been+pastparticiple,Grammar,How?,*Theyhaveread20books.,-,20books,_,havebeenread,bythem.,方法,找宾作主,看时定式,*Ihaveboughtacar.,Acar,hasbeenbought,(byme),Pleasedothefollowing:ActivevoicePassivevoice,1.Wehaveboughtanewpersonalcomputer.2.Wehavefoundmanyproblemswithournewcomputer.3.TheyhavebuiltaPCthewaywewanted.,Anewpersonalcomputerhasbeenboughtbyus,Manyproblemshavebeenfoundwithournewcomputer.,APChasbeenbuiltthewaywewanted.,4.TheyhavejustjoinedourcomputertotheInternet.5.Wehaveusedthecomputereverydaysinceweboughtit.6.Wehavewrittenalotofe-mailsonthecomputerinthepastyear.,Alotofe-mailshavebeenwrittenonthecomputerinthepastyear.,OurcomputerhasjustbeenjoinedtotheInternet.,Thecomputerhasbeenusedeverydaysinceweboughtit.,Choice,1.Youcanseethehouse_foryears.isntpaintedB.hasntpaintedC.hasntbeenpaintedD.hadntbeenpainted,C,2.-Howlong_atthisjobs?-Since1990.A.wereyouemployedB.haveyoubeenemployedC.hadyoubeenemployedD.willyoubeemployed,B,3.Greatchanges_inthecity,andalotoffactories_.A.havebeentakenplace;havebeensetupB.havetakenplace;havebeensetupC.havetakenplace;havesetupD.weretakenplace;weresetup4.Shehas_byherclassmates.A.laughedB.laughedatC.beenlaughedD.beenlaughedat,(B),D,5.Bothmybrithersworkatthepowerstationthat_in1996.A.hassetupB.hasbeensetupC.wassetupD.issetup6.Rainforests_andburnedatsuchaspeedthattheywlldisappearfromtheearthinthenearfuture.A.cutB.arecutC.arebeingcutD.hadbeencut,C,C,Discoveringusefulwordsandexpreessions,1._completely(p19)2._completelychange3._tomakesomethinghappen4._whenababyoranomalisborn5._unabletounderstanddifficultthings,totally,revolution,Sothat,birth,simple-minded,6_pass7._takecorrectaction8._broadcastonseveraldifferentchannels9._indeed10._usedtoshowthatsth.happensinspiteofaproblem,goby,dealwith,network,truly,anyway,Completethepassagewiththewords:,OnedayIdecidedIwouldchangethewayIworkandmakea_intheoffice.SoIboughtacomputerandmadesureitwasjoinedtoa_.Anditwas_exciting_mylettersbecameneatandtidyandeverybodycouldreadmywriting.Butastime_Ibegaintofeelthatmyideahadbeen_wrong.NowIwasnolongerabletofeelthatmyworkwas_myown.WhenIbecameunhappy,my_colleaguesthoughtIneededamoreadvancedmodelofcomputer._theyboughtmeanewone.SoIhaveneverbeenabletoescapefromtechnologyand_myworkasIthinkfit!,revolution,network,so,that,wentby,totally,truly,simple-minded,Anyway,dealwith,Ticktherightword,1.Life(total/totally)changedwhenIwenttouniversity.2.Iwas(amazing/amazed)tofindthatIwonthecompetitiontodesignanewcomputer.3.Thecompetitionwasso(excited/exciting)thatwecheeredallevening.,4.Iwasso(excited/exciting)atthethoughtofmeetingYangLiweithatIcouldnotsleep.5.Robotscanbeboughtso(cheap/cheaply)thatIgaveon