高中英语 Unit 3 Computers Reading课件 新人教版必修2.ppt

,Heavy!Difficult!Hard!Tired!,Easy!Fast!Free!,monitor,keyboard,mouse,speaker,modem,scanner,printer,USBflashdisc,harddisc,Labeleachpart.,monitor,screen,CD-ROM,mouse,keyboard,harddisk,1.Lookatthesepictures.Inpairsdiscusswhattheyhaveincommon.2.Whatdotheytellyouaboutthedevelopmentofcomputers?3.Whatdoyouthinkwillbethenextdevelopment?,Whatsnext?,1.Whoisthespeakerinthisstory?Acomputer.2.Writedownthreesentencesfromthestorytosupportyouridea.1)IwasbuiltasanAnalyticalmachinebyCharlesBabbage.,2)Myrealfather,AlanTuring,3)Iwasalwayslonelystandingtherebymyself,untilinearly1960stheygavemeafamilyconnectedbyanetwork.,Skimthetextandputthefollowinginventionsinanorderaccordingtothetimewhentheyappeared.()analyticalmachine()calculatingmachine()PC()laptop()robot()universalmachine,2,1,4,5,6,3,1.Wherewereyouin1642?InFrance.2.Whathappenedtoyouafternearlytwohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.,3.Whatwereyoucalledin1936?Auniversalmachine.4.Whathappenedtoyouinthe1970s?Ihavebeenusedinofficesandhomes.,OvertimeIhavebeenchangedquitealot.,Thesechangesonlybecamepossibleasmymemoryimproved,Sincethe1970smanynewapplicatio-nshavebeenfoundforme.,Task3ComprehendingEx.2,CalculatingmachineAnalyticalmachineUniversalmachinePClaptop,TubesTransistorsChipsNetworkWorldWideWeb,CommunicationsFinanceTradeRobotsMobilephonesMedicaloperationsSpacerocketsProvidingalifeofhighquality,Thecomputerbeganasacalculatingmachine.,Thecomputergrewrapidlybothinsizeandinbrainpower.,Computershadgrownaslargeasaroom.,1960s,Computerswereusedinofficesandhomes.,Computersconnectpeopleallovertheworldtogether.,calculating,analytical,universal,mathematicalproblems,Medicaloperations,Memory,Transistors,Applications,Communication,Trade,OvertimeIhavebeenchangedquitealot.,Thesechangesonlybecamepossibleasmymemoryimproved.,CalculatingmachineAnalyticalmachineUniversalmachinePClaptop,tubestransistorschipsnetworkWorldWideWeb,communicationsfinancetraderobotsmobilephonesmedicaloperationsspacerocketsprovidingalifeofhighquality,Sincethe1970smanynewapplicationshavebeenfoundforme.,totally,revolution,simplify,calculate,mobile,solve,explore,totally,anyhow,finance,thesecondgeneration(1956-1963),thethirdgeneration(1964-1971),thefourthgeneration(1971-),Thefirstgeneration(1945-1956),Thehistoryofcomputers,WhatisPC?Speakthenameonthewhole.,Itmeans:personalcomputer.,2.WhatisIT?,InformationTechnology.,3.WhatisCD-ROM?,Compactdiscread-onlymemory.,4.WhatisPDA?,Personaldigitalassistant.,5.WhatisW.W.W?,Worldwideweb.,6.科学技术。,Scienceandtechnology.,7.人工智能。,Artificialintelligence.,8.笔记本电脑。,Notebookcomputer.,9.Whowasthefirstpersontodevisethefirstc