人教高中英語必修二課件unit3Reading

高一必修2Unit3Heavy!Difficult!Hard!Tired!Easy!Fast!Free!monitorkeyboardmousespeakermodemscannerprinterUSBflashdischarddiscLabeleachpart.124356monitorscreenCD-ROMmousekeyboardharddisk1.Lookatthesepictures.Inpairsdiscusswhattheyhaveincommon.2.Whatdotheytellyouaboutthedevelopmentofcomputers?3.Whatdoyouthinkwillbethenextdevelopment?What’snext?1.Whoisthespeakerinthisstory?

Acomputer.2.Writedownthreesentencesfromthestorytosupportyouridea.

1)IwasbuiltasanAnalyticalmachinebyCharlesBabbage.2)Myrealfather,AlanTuring,…3)Iwasalwayslonelystandingtherebymyself,untilinearly1960stheygavemeafamilyconnectedbyanetwork.Skimthetextandputthefollowinginventionsinanorderaccordingtothetimewhentheyappeared.()analyticalmachine()calculatingmachine()PC()laptop()robot()universalmachine2145631.Wherewereyouin1642?InFrance.2.Whathappenedtoyouafternearlytwohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.3.Whatwereyoucalledin1936?

Auniversalmachine.4.Whathappenedtoyouinthe1970s?Ihavebeenusedinofficesandhomes.OvertimeIhavebeenchangedquitealot.ThesechangesonlybecamepossibleasmymemoryimprovedSincethe1970smanynewapplicatio-nshavebeenfoundforme.Task3ComprehendingEx.2CalculatingmachineAnalyticalmachineUniversalmachinePClaptopTubesTransistorsChipsNetworkWorldWideWebCommunicationsFinanceTradeRobotsMobilephonesMedicaloperationsSpacerocketsProvidingalifeofhighqualityThecomputerbeganasacalculatingmachine.Thecomputergrewrapidlybothinsizeandinbrainpower.Computershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.calculatinganalytical

universal

mathematicalproblemsMedicaloperationsMemoryTransistorsApplicationsCommunicationTradeOvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.CalculatingmachineAnalyticalmachineUniversalmachinePClaptoptubestransistorschipsnetworkWorldWideWeb＊communications＊finance＊trade＊robots＊mobilephones＊medicaloperations＊spacerockets＊providingalifeofhighqualitySincethe1970smanynewapplicationshavebeenfoundforme.totallyrevolutionsimplifycalculatemobilesolveexploretotallyanyhowfinancethesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Thefirstgeneration(1945-1956)ThehistoryofcomputersWhatisPC?Speakthenameonthewhole.Itmeans:personalcomputer.2.WhatisIT?InformationTechnology.3.WhatisCD-ROM?Compactdiscread-onlymemory.4.WhatisPDA?Personaldigitalassistant.5.Whatis?Worldwideweb.6.科學(xué)技術(shù)。Scienceandtechnology.7.人工智能。Artificialintelligence.8.筆記本電腦。Notebookcomputer.9.Whowasthefirstpersontodevisethe