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1、Unit3ComputersPeriodOneWarmingupandreadingSteponeWarmingup贵阳三十七中李长江1>TalkabouttheimportanceofcomputerandtheInternet.2.Cooperativelearning:Showsomepicturesofthedevelopmentofcomputers.Discussion;1.Whatcanyouseeinthepictures?(abacus,calculator,hugecomputer,PC
2、,laptop,PDA,robot)2.Whatdotheyhaveincommon,inyouropinion?SteptwoPre-reading1.Howhavecomputerchangedourlife?2.Whatdoyouthinkthetextwilltalkaboutfromthetitleandthepicture?StepThreeReadingTask1:Skimthepassageforthegeneralidea..(It?smainlytalkingaboutthehistor
3、yanddevelopmentofcomputers.)Task2:Scanningfordetailedinformation.1.Readthepassageandfinishthetimelinebelow.(P19Ex.1)2.Readthepassageagainandfindthetopicsentenceandsupportingdetailsofeachparagraph.StepFourListenandreadaloudListentothetapeandfollowtoitandrea
4、daloud.StepFiveSummaryandhomeworkTask1:Retellthedevelopmentofcomputers.AsampleI,acomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachinein1822,whichwasatechnologicalrevolution.Ibecamea"universalmachine"in1936tosolveanymathematicalp
5、roblem.Iwasnotverybigatfirst,butthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.Gettingnewtransistorsin1960s,Ibecameclevererandquicker.Iwasconnectedwithothercomputersandturnedouttopartofanotebookintheearly1960.ThenIbegantalkingtohumanusi
6、ngBASICintheearly1960s.Inthe1970s,Iwasbroughtintopeopledhomes,andcametheInternet.Task2:Rememberthekeypointsinthepassage*PeriodTwoLanguagepointsStep1RevisionAccordingtothetimenumber,retellthedevelopmentofcomputers.1642,1822,1940s,1970s,nowStepTwoLanguagepoi
7、ntsGuessingthewordsorphrases.(Ex,lP20)Lcommon:havesthincommon(with…)incommonwithcommon/ordinary/usual(1)Thisisaflowerhere.(2)Myfatherisanworker.(3)Itiswithhimtoworkonfoot.(4)It'sverydisappointingthatthepianistgaveaveryperformanceattheconcert.(5),thenorther
8、nersarefondofdumplingswhilethesouthernerslikerice.(Incommon/Ingeneral/Intotal?inparticular)2.follow:Guessingthemeaningsinthesituations-(1)Hefollowedthepassengersontothetrain.(2)Icouldrftfollow,couldyouexplain
