20192020高中英語 Unit 3 Computers Period 2課件 新人教必修2

Unit3Computers2文本研讀課（同課異構(gòu)）PeriodReadingLookatthesepictures.Discusswhattheyhaveincommon.Predictwhatitisgoingtobeabout.DisscussionWhat’snext?Pre-readingquestionsWhathavecomputerschangedourlife?2.Whatchangeswilltheybringtousinthefuture?Task1Skimming1.Whoisthespeakerinthisstory?

Acomputer.2.Writedownthreesentencesfromthestorytosupportyouridea.

1)IwasbuiltasanAnalyticalmachinebyCharlesBabbage.2)Myrealfather,AlanTuring,…3)Iwasalwayslonelystandingtherebymyself,untilinearly1960stheygavemeafamilyconnectedbyanetwork.Task2Fastreading1.Wherewereyouin1642?InFrance.2.Whathappenedtoyouafternearlytwohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.3.Whatwereyoucalledin1936?

Auniversalmachine.4.Whathappenedtoyouinthe1970s?Ihavebeenusedinofficesandhomes.16421822TheanalyticalmachinewasmadebyCharlesBabbage.1936Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidlybothinsizeandinbrainpower.Task3Carefulreading1940s

Thefirstfamilyofcomputerswasconnectedtoeachother.1970snowComputershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.DevelopmentEarlydaysNameFunctionPoorStrongA_________machineSimplifydifficultsumsAn________machineThinklogicallyandproduceananswerquicklyA_________machineSolvedifficult______________________calculatinganalytical

universal

mathematicalproblemsDevelopmentNetworktimes_________storedinTubesLargeSmall____________Smallchips________________Narrow

WideFinance________RobotsMobilephones___________SpacerocketsMedicaloperationsMemoryTransistorsApplicationsCommunicationTrade1completely2completechange3tomakethingseasier4tofindtheanswerusingnumbers5canbemovedeasilyfromplacetoplace6toworkouttheanswertoaproblemtotallyrevolutionsimplifycalculatemobilesolveTask4Fillintheblanks.7totravelaroundanareatofindoutaboutit8completely9anyway10activityofmanagingmoneyexploretotallyanyhowfinanceThehistoryofcomputersthesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Thefirstgeneration(1945-1956)Task5QUESTION-ANSWERCOMPETITIONWhatisPC?Speakthenameonthewhole.Itmeans:personalcomputer.2.WhatisIT?InformationTechnology.3.WhatisCD-ROM?Compactdiscread-onlymemory.4.WhatisPDA?Personaldigitalassistant.5.WhatisW.W.W?Worldwideweb.6.科學(xué)技術(shù)。Scienceandtechnology.7.人工智能。Artificialintelligence.8.筆記本電腦。Notebookcomputer.9.Whowasthefirstpersontodevisethefirstcomputer?CharlesBabbageinventedanAnalyticalmachinein1822.10.Whowasthecomputers’realfather?AlanTuring.Homework模仿本節(jié)閱讀材料，按照時(shí)間的發(fā)展順序，用第一人稱寫一篇介紹事物或人的變化的文章（可以寫植物，寵物也可以寫自己或朋友）適當(dāng)運(yùn)用文章中出現(xiàn)的短語：字?jǐn)?shù)120左右Phrasessuggested:whenxxwasyoung，overtime，atthattime，bythetime，fromthenon等，內(nèi)容總結(jié)Unit3Computers。2文本研讀課（同課異構(gòu)）。Lookatthesepictures.Discusswhattheyhaveincommon.Predictwhatitisgoingtobeabout.。2.Writedownthreesentencesfromthestorytosupportyouridea.。machinebyCharlesBabbage.。Thecomputergrewrapidlybothinsizeandinbrainpower.。Task3Carefulreading。_________store