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人教课标高一必修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.1.Wherewereyouin1642?InFrance.2.Whathappenedtoyouafternearlytwohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.3.Whatwereyoucalledin1936?Auniversalmachine.4.Whathappenedtoyouinthe1970s?Ihavebeenusedinofficesandhomes.16421822TheanalyticalmachinewasmadebyCharlesBabbage.1936Thecomputerbeganasacalculatingmachine.Thecomputergrewrapidlybothinsizeandinbrainpower.1940sThefirstfamilyofcomputerswasconnectedtoeachother.1970snowComputershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.DevelopmentEarlydaysNameFunctionPoorStrongA_________machineSimplifydifficultsumsAn________machineThinklogicallyandproduceananswerquicklyA_________machineSolvedifficult______________________calculatinganalyticaluniversalmathematicalproblemsDevelopmentNetworktimes________storedinTubesLargeSmall____________Smallchips_______________________NarrowWideFinance________RobotsMobilephones_______________SpacerocketsMedicaloperationsMemoryTransistorsApplicationsCommunicationTradeParagraph1Paragraph2TopicsentenceOvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Paragraph1Paragraph2SupportingdetailsCalculatingmachineAnalyticalmachineUniversalmachinePClaptoptubestransistorschipsnetworkWorldWideWebParagraph3TopicsentenceSupportingdetails＊communications＊finance＊trade＊robots＊mobilephones＊medicaloperations＊spacerockets＊providingalifeofhighqualitySincethe1970smanynewapplicationshavebeenfoundforme.1completely2completechange3tomakethingseasier4tofindtheanswerusingnumberstotallyrevolutionsimplifycalculate5canbemovedeasilyfromplacetoplace6toworkouttheanswertoaproblemmobilesolve7totravelaroundanareatofindoutaboutit8completely9anyway10activityofmanagingmoneyexploretotallyanyhowfinancethesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Thefirstgeneration(1945-1956)Thehistoryofcomputers1.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.Whowasthefirstpersontodevisethefirstcomputer?CharlesBabbageinventedananalyticalmachinein1822.10.Whowasthecomputers’realfather?AlanTuring.Howcomputershavechangedourlives?ListofusesofcomputersWhatpeopledidbeforecomputersemailswriteletterswordprocessingwritebyhandortypewritersearchforinformationlookinencyclopedia,library,etcListofusesofcomputersWhatpeopledidbeforecomputerswatchDVDsgotothecinemastoreinformationwriteeverythingdownandputintofilesandfolders