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新人教版高中英语必修2Unit3 Computers教案VIP免费

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Unit3ComputersTeachingaims:1.TopicInformationtechnology;historyandbasicknowledgeofcomputers;robots2.Usefulwordsandexpressions:CalculatecalculatorPCnotebookcommonanalyticalsimplesimple-mindedtechnologytechnologicalrevolutionuniversalmathematicalartificialintelligenceanywaytotallynetworktrulyracebirthITadvantagedisadvantagetypedisagreechoicematerialpersonallycreatecoachmovearisebrainmopwanderIncommoninone’sopiniongobyso…that…dealwithhumanraceinawaymakeupafterallwiththehelpofwatchover3.Functionalitems:a)MakingdecisionsIthinkthat…Inmyopinion…Ibelievethat…Let’smakeourdecision.I’vedecidedthat…b)ReasoningTheadvantage/disadvantageis…Ithinkthisoneisbetterbecause….Idon’tthinkthisonebecause….What’syourreason?Whydoyouthinkso?4.StructuresThepresentperfectpassivevoiceIhavebeenmadesmallerandsmaller.Ihavebeenusedbymillionsofpeople.Ihavetrulybeenbuilttohelpthehumanrace.TeachingproceduresPeriod1.SpeakingStep1.Warmingup1.Sstalkaboutthepicturesonpage17withtheteacher’shelp.AnabacusisanoldcalculatingmachineusedinChinauntilnow.Ahugecomputerisbuilttosolvesomemathematicalproblems.Butitistoobig.Acalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.APCisapersonalcomputerwhichcansolveallkindsofproblemsandis用心爱心专心usedwidelynow.Anotebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.2.Nowlet’sdiscusswhattheyhaveincommoninsmallgroups.Remembertousesomeofthefollowingexpressions.Ithinkthat…Inmyopinion…Ibelievethat…What’syourreason?Whydoyouthinkso?Step2.Listening(page55)SsareaskedtoreadfasttherequirementofEx.1and2tofinkoutthelisteningpointsfirst.ThenlistentothetapetwicetocompleteEx.Step3.Talking(page56)Imaginethatyourfamilyisthinkingofbuyingarobot.Youcanaffordthesethreerobotsmentionedinthelisteningtext.Pleasediscusswhichoneisthebestforyou.Remembertodiscusstheadvantagesanddisadvantagesofeachone.Themmakeyourchoiceandgivereasons.Usingthefollowingexpressionsindiscussion:Ibelievethat….Ithinkthisoneisbetterbecause…Let’smakeourdecision…Inmyopinion…I’vedecided…Idon’tlikethisonebecause..Period2.ListeningStep1.RevisionSstalkaboutsomethingaboutcomputersorrobots.Step2.Listeningandwriting(page21)AsktheSstoreadthroughthedirectionsandlookatsomepicturesbelowandaformaboveonpage22.makesuretheyknowwhattodowhilelistening.Task1.ListentoaconversationaboutdifferentkindsofinformationtechnologyofIT.Task2.DiscussionandfillingSsdiscusstheadvantagesanddisadvantagesofeachoneinsmallgroupsandfillinthefollowingform.TypeofITAdvantagesDisadvantagesTVWeb用心爱心专心RadioBookStep3.Listeningtask(page58)1.Sswillbeaskedtolookatthepictureandtheformquicklytofindouttheimportantpoints.2.PlaythetapetwiceandasktheSstofillintheform.HomeworkSsdiscusstheuseofcomputerchipsintheirsparetime.Period3.ReadingStep1.Pre-readingSsingroupsdiscussthefollowingquestions:1.Whatdoyouknowaboutcomputers?2.Howhavecomputerschangedourlives?Step3.Reading1.Ssreadthepassageandgetthegeneralidea.(Thetextismainlyaboutthehistoryanddevelopmentofcomputers.Anditisalsoabouttherelationshipofcomputersandhumans.)2.Ssreadthepassageandfinishthetimelineonpage19.Suggestedanswer:1642:Thecomputerbeganasacalculatingmachine.1822:TheAnalyticalMachinewasbuiltbyCharlesBabbage.1936:AlanTuringwroteabooktodescribehowcomputerscouldbemade.1960s:Computershadnewtransistorsandbecomesmaller.1960s:Thefirstfamilyofcompu...

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新人教版高中英语必修2Unit3 Computers教案

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