高中英语 Unit3 Learning about language课件 新人教版必修2.ppt

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1、Unit3ComputersLearningAboutLanguageThehistoryofcomputersthesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Thefirstgeneration(1945-1956)calculatingmachinePc(desktop/notebook)analyticalmachineuniversalmachineartificialintelligenceIntern

2、et.Listen,ReadandTalkRevision.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.Heisasimple—mindedman.HeransofastthatIcouldn’tcatchupwithhim.5.你将怎样处理这场车祸?Howwillyoudealwiththecaraccident?PresentationActive

3、voiceorPassivevoice?1.Theoldmanhasbeendeadfortwoyears.2.Theyhavedonethejob.3.Thehousehasbeenbuiltfor3years.PassiveVoice---------------现在完成时被动语态谓语:has/have+been+pastparticipleGrammarHow?*Theyhaveread20books.-------20books______havebeenreadbythem.方法找宾作主,看时定式*Ihaveboughta

4、car.Acarhasbeenbought(byme)Pleasedothefollowing:ActivevoicePassivevoice1.Wehaveboughtanewpersonalcomputer.2.Wehavefoundmanyproblemswithournewcomputer.3.TheyhavebuiltaPCthewaywewanted.AnewpersonalcomputerhasbeenboughtbyusManyproblemshavebeenfoundwithournewcomputer.APCha

5、sbeenbuiltthewaywewanted.4.TheyhavejustjoinedourcomputertotheInternet.5.Wehaveusedthecomputereverydaysinceweboughtit.6.Wehavewrittenalotofe-mailsonthecomputerinthepastyear.Alotofe-mailshavebeenwrittenonthecomputerinthepastyear.OurcomputerhasjustbeenjoinedtotheInternet.

6、Thecomputerhasbeenusedeverydaysinceweboughtit.Choice1.Youcanseethehouse_____foryears.isn’tpaintedB.hasn’tpaintedC.hasn’tbeenpaintedD.hadn’tbeenpaintedC2.---Howlong_____atthisjobs?---Since1990.A.wereyouemployedB.haveyoubeenemployedC.hadyoubeenemployedD.willyoubeemployed

7、B3.Greatchanges__inthecity,andalotoffactories__.A.havebeentakenplace;havebeensetupB.havetakenplace;havebeensetupC.havetakenplace;havesetupD.weretakenplace;weresetup4.Shehas______byherclassmates.A.laughedB.laughedatC.beenlaughedD.beenlaughedat(B)D5.Bothmybrithersworkatt

8、hepowerstationthat___in1996.A.hassetupB.hasbeensetupC.wassetupD.issetup6.Rainforests_____andburnedatsuchaspeedthatthe