人教版高一英语必修2所有精华版课件ppt.ppt

Unit3Computers ReadingWHOAMI Iamveryoldnow IwasborninChina Manypeopleusedmeforcalculatinginthepast butnowIamabitlonelybecausetheydon tlikemenow DoyouknowwhoIam abacus Riddles 谜语 Iamverysmall Icanbeusedforcalculating InChina alotofstudentsusemewhensolvingmathematicalproblems DoyouknowwhoIam calculator Riddles 谜语 Icanbeusedforcalculating Besides IcanalsobeusedforwatchingDVD sendinge mailandcommunicatingthroughtheInternet However IamnotaPC becauseI msmallenoughforyoutotakemewithyou notebookcomputer DoyouknowwhoIam Riddles 谜语 Discussion Whatdotheyhaveincommon Ithinkthat Inmyopinion Ibelievethat Whydoyouthinkso What syourreason Ithinktheyallcancalculatesomething Itcandealwithsomemathsproblems Ibelievethattheyareourgoodfriends Inoureverydaylife Wecannotfinishourworkquicklywithoutthem Inmyopinion peopleimproveabacus makeitmoreusefulandmakeitacomputer Theyarebeingusedwidelyandconvenientlyintheworld HavethecomputerandInternetbecomepartofyourlife Whatcanyouusethemtodo THINKING IusethecomputerorInternetto typemyhomeworkdrawpicturesplaygamescommunicatewithmyfriends gatherrelatedinformationformylessonsbuythethingsIlike egbooksandclothes listentomusicwatchmovies Howmuchdoyouknowaboutacomputer GivetheEnglishnameofthefollowingpicturesofthecomputercomponents 组件 WhatisitinEnglish Mainboard 主板 WhatisitinEnglish CPU centralprocessingUnit 中央处理器 WhatisitinEnglish harddisc WhatisitinEnglish floppydisc WhatisitinEnglish Keyboard 键盘 WhatisitinEnglish monitor screen WhatisitinEnglish mouse鼠标 DVDROM DigitalVersatileDiscReadOnlyMemory数字通用光盘 WhatisitinEnglish WhatisitinEnglish Printer WhatisitinEnglish Modem 调制解调器 Completethesentenceswithsomeofthewordsinthebox Monitor mouse keyboard harddisc floppydisc CD ROM printer modem A isusedtoseeyourdataonacomputer A ordiskisthemaindevicethatacomputerusestostoreinformation A isamachineforprintingtextorpicturesontopaper especiallyoneconnectedtothecomputer monitor harddisk printer Monitor mouse keyboard harddisc floppydisc CD ROM printer modem A isusedtoputdataintoacomputer A isoftenusedtoconnectcomputerstoeachotherthoughphonelines Datacanalsobestoredina whichissmallandcanbecarriedeasily A isadiscthatcontainscomputerdata Itcanstorealargeamountofdata keyboard modem floppydisc CD ROM Lookatthepicturesandusesomeadjectivestodescribeher hisfeelings Free Easy Fast Quick Usefulphrases calculatingmachineAnalyticalmachinecardwithholestechnologicalrevolutionuniversalmachineartificialintelligencegobybyinternethumanrace 计算器分析机穿孔卡技术革命万能机 通用机器人工智能走过 过去通过网络人类 otherusefulwordsandexpressionsaboutcomputer Network网络Website站点Program程序Virus病毒Hacker黑客Download下载Software软件Hardware硬件 Upload上传Homepage主页Password密码Desktop桌面Username用户名Click点击 What sthemainideaofthispassage A ThedevelopmentofcomputersB ThedevelopmentanduseofcomputersC Amachinewhichissimple mindedD Computersmayreplacehumanbeing Fast reading B Thedevelopmentanduseofcomputers IbeganasacalculatingmachineinJapanin1642 In1936 Igrewrapidlybothinsizeandinbrainpower Astimewentby Iwasmadebigger Sincethe1970smanynewapplicationshavebeenfoundforme 2 TrueorFalse F T F T Thecomputerbeganasacalculatingmachine 1936 Thecomputerhadgrownaslargeasaroom 1960 Computerswereusedinofficesandhomes 3 Table filling A Readthepassagecarefullyandfindthetopicsentencesandthedetailssupportingthem Further reading OvertimeIhavebeenchangedquitealot Thesechangesonlybecomepossibleasmymemoryimproved Sincethe1970smanynewapplicationshavebeenfoundforme calculatingmachineanalyticalmachineuniversalmachinepclaptop tubestransistorschipsnetworkworldwideweb communicationsfinancetraderobotsmobilephonesmedicaloperationsspacerocketsprovidingalifeofhighquality Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext Putthemdownintoyournotebookafterclassashomework B Readaloudandunderlineexpressions I the wasacalculatingmachinein1642in In1936 Ibecamea machine to anymathematicalproblem Sincethe1970sIhavebeenusedfirstasa andthenasa inofficeand Manychangedhavehappenedtomy somy totallychanged Ihavebeenwidelyusedinmanyfields Ihavealsobeenput