新人教必修二 Unit 3 ComputersReading课件.ppt

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1、ReadingLookatthesepictures.Discusswhattheyhaveincommon.Predictwhatitisgoingtobeabout.WarmingupWhat’snext?Pre-readingquestionsWhathavecomputerschangedourlife?2.Whatchangeswilltheybringtousinthefuture?Task1Skimming1.Whoisthespeakerinthisstory?Acomputer.2.Writedownthreesentences

2、fromthestorytosupportyouridea.1)IwasbuiltasanAnalyticalmachinebyCharlesBabbage.2)Myrealfather,AlanTuring,…3)Iwasalwayslonelystandingtherebymyself,untilinearly1960stheygavemeafamilyconnectedbyanetwork.Task2Fastreading1.Wherewereyouin1642?InFrance.2.Whathappenedtoyouafternearly

3、twohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.3.Whatwereyoucalledin1936?Auniversalmachine.4.Whathappenedtoyouinthe1970s?Ihavebeenusedinofficesandhomes.16421822TheanalyticalmachinewasmadebyCharlesBabbage.1936Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidl

4、ybothinsizeandinbrainpower.Task3Carefulreading1940sThefirstfamilyofcomputerswasconnectedtoeachother.1970snowComputershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.DevelopmentEarlydaysNameFunctionPoorStrongA_______

5、__machineSimplifydifficultsumsAn________machineThinklogicallyandproduceananswerquicklyA_________machineSolvedifficult______________________calculatinganalyticaluniversalmathematicalproblemsDevelopmentNetworktimes_________storedinTubesLargeSmall____________Smallchips__________

6、______NarrowWideFinance________RobotsMobilephones___________SpacerocketsMedicaloperationsMemoryTransistorsApplicationsCommunicationTrade1completely2completechange3tomakethingseasier4tofindtheanswerusingnumbers5canbemovedeasilyfromplacetoplace6toworkouttheanswertoaproblemtotal

7、lyrevolutionsimplifycalculatemobilesolveTask4Fillintheblanks.7totravelaroundanareatofindoutaboutit8completely9anyway10activityofmanagingmoneyexploretotallyanyhowfinanceThehistoryofcomputersthesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Th

8、efirstgeneration(1945-1956)Task5QUESTION-ANSWERCOMPETITIONWhatisPC?S