高一英语必修2Unit3Computers课件.ppt

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1、Unit3ComputersWhoAmI?GuessinggameWiththedevelopmentofscienceandtechnology,manynewthingsappearinhumanbeing’slife.Let’sguesswhattheyare:1.Withmeyoucanwatchdifferentprogrammesjustathome.I’mamachinethathasascreenwithmovingpicturesandsounds.Butwatchingmetoomuchisbadforyoureyes.TVsetWh

2、oAmI2.Iamamachinewhichmovesveryfastonfourwheels.Youneedalicense(执照)andmustbeverycarefulwhenyoudriveme.RollsRoyce,BenzandBMWaresomefamouskindsofme.car3.Iamamachinewhichisagoodhelperindoinghousework.Iwashclothesforpeople.WhoamI?washingmachine4.Amachinethatyouusetotalktootherpeoplee

3、veninafar-awayplace.Weareconnectedbywireorradio.Noweachofusoftenhasanumber.WhoamI?telephone5.Itisamachine,whichyoucanusetotypeyourhomework,drawpictures,playgames,watchmovies,listentomusic,communicatewithyourfriends,gatherinformation…Computeritisakindofcomputerwhichcanbetakenconve

4、nientlylikeanotebook.AlaptopWhatEnglishwordsdoyouknowaboutcomputers?WhatisitinEnglish??mouse鼠标WhatisitinEnglish??CPU(centralprocessingUnit)中央处理器WhatisitinEnglish??Mainboard(主板)WhatisitinEnglish??Display/MonitorcomputerInternetSearchKeyboardClickE-mailBlogBGillatesE-palComponentso

5、facomputerScannerPrinterMonitorFloppyDiskMouseSpeakerTimelineThecomputerbeganasacalculatingmachineThecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.1642:_________

6、______________________________________1822:TheAnalyticalMachinewasmadebyCharlesBabbage.1936:______________________________________________________________________________________1940s:______________________________________________:Thefirstfamilyofcomputerswasconnectedtoeachother.

7、1970s:_________________________________________Now:__________________________________________Fillintheblanks:Ibeganasa________machinein1642inFrance.In1822Iwasbuiltasan________machine.Thenin1936AlanTuringwroteabookandbuilta________machine.Astheyearshave______,Ihavebeenmade______.T

8、hereweretimeswhenmysize______changed.And