搜索
•Teachingaimsanddemands:•Thisunitisconcernedwithteachingstudentsalittlemoreofthehistoryanddevelopmentofcomputersandtheirapplications.•HelpstudentstoexpresstheirownopinionsinEnglish.Teachthemhowtomakedecisionsandreasoning.Learntointroducesomethingintimesequence.•Teachthemhowtousesomeofthewordsandexpressionsintheunit.•LearntouseThePresentPerfectPassiveVoice.Warmingup•Lookatthepictures.Talkabouteachofthem.Discusswhattheyhaveincommonbyusingthefollowingexpressioninyourdiscussion.–Ithinkthat…–Inmyopinion…–Ibelievethat…–Whydoyouthinkso?–What’syourreason?abacushugecomputercalculatorpersonalcomputernotebookcomputerPre-reading1.Whatdoyouknowaboutcomputers?2.Howhavecomputerschangedourlives?Thinking•AnabacusisanoldcalculatingmachineusedinChinauntilnow.•Ahugecomputerisbuilttosolvesomemathematicalproblems.Butitistoobig.•Acalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.•APCisapersonalcomputerwhichcansolveallkindsofproblemsandiswidelyusednow.•Anotebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.Howwassomuchinformationgiveninsuchashortspace?Whatdoyouthinkisthetoneofthewriting?Discussion1.Howwassomuchinformationgiveninsuchashortspace?Thewritingisclearanddoesnotwastewords.Therearenodescriptions.Itjustgivesusfacts.Itusesnamesbutitonlytellsusaboutpeople’sworkwithcomputers.Itiswritteninthefirstpersonbutitkeepswiththefacts.Itiswrittenasifthewriterwasacomputerwithnofeelings.Suggestedanswer:2.Whatdoyouthinkisthetoneofthewriting?Itisnaturalandmakesmewanttofindoutmore.Idonotthinkthewritingistryingtopersuademetobelievesomethingbutitdoesmakemeinterestedinthetopic.Fastreading1Whathappenedtoyouin1822?2Wherewereyouin1642?3Whatwereyoucalledin1936?4Whathappenedtoyouinthe1970s?InFrance.IwasbuiltasanAnalyticalMachinebyBabbage.Auniversalmachine.Iwasbroughtintopeople’shomes.TrueorFalse?1.In1642Ibeganasacalculatingmachineandcouldsolveanymathematicalproblem.2.MyrealfatherwasCharlesBabbage,whowroteabookandbuildmein1936.3.AfterIgotmynewtransistorsinthe1960s,Ibecamesmallerbutclevererandquicker.4.Iwasbroughtintopeople’shomesinthe1970s.5.SincemybirthIhavebeenbuilttotaketheplaceofhumanrace.FFTTFcalculatingAlanTuringserveTask1:Lookatthetimelinebelow.Fillintheblankswithinformationfromthereadingtext.1642:Thecomputerbeganasacalculatingmachine.1822:TheAnalyticalMachinewasmadebyCharlesBabbage.1936:Thecomputergrewrapidlybothinsizeandinbrainpower.1940s:Thecomputerhadgrownaslargeasaroom.1970s:Computersconnectpeopleallovertheworldtogether.Now:Computerswereusedinofficesandhomes.Careful-reading1960s:Thefirstfamilyofcomputerswasconnectedtoeachother.Conclusionofthetext1.What’sthemainideaofthetext?2.Howdidcomputersdevelop?Themainideaofthetextisthehistoryanddevelopmentofcomputers.CalculatingmachineAnalyticalmachineUniversalmachineArtificialintelligenceComputerInternetShouldhighschoolstudentssurftheinternet?Ithinkhighschoolstudentsshouldsurftheinternetbecause…(first,secondly,thirdly)Ithinkhighschoolstudentsshouldnotsurftheinternetbecause…(first,secondly,thirdly…)DiscussionConclusionThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolourfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.Comprehending1.Whoisthespeakerinthisstory?2.Writedownthreesentencesfromthestorytosupportyouridea.Acomputer.·Thenin1822IwasbuiltasanAnalyticalmachinebyCharlesBabbage.·MyrealfatherwasAlanTuring,…·However,peoplethoughtIwassimple-mindeduntiltheydiscoveredIhad“artificalintelligence.”1642:________________________________________:TheAnalyticalMachinewasmadebyCharlesBabbage.1936:__________________________________________________________Thecomputerbeganasacalculatingmachine1822.AlanTuringwroteabooktodescribehowcomputercouldbemade.Timeline1960s:___________________________________________________________:Thefirstfamilyofcomputerswasconnectedtoeachother.1970s:____________________________________________Now:__________________________________________________Computershadnewtransistorsandbecomesmaller.1960sComputerswerebroughtintopeople’shomes.Computersconnectpeopleallovertheworldtogether.Timeline