人教版高一英语上册必修2UNIT 3 Computers 第2课时reading课件.ppt

,Welcome,Unit3Computer,课时分配,Warmingup,ThedevelopmentofcomputerP17Lookatthepictures.Talkabouteachofthem.Discusswhattheyhaveincommon.,Anabacus,Acalculator,APC(=personalcomputer),Anotebookcomputer/laptop,Ahugecomputer,AnabacusisanoldcalculatingmachineusedinChinauntilnow.Ahugecomputerisbuilttosolvesomemathematicalproblems.Butitistoobig.Acalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.APCisapersonalcomputerwhichcansolveallkindsofproblemsandiswidelyusednow.Anotebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.,Youareaskedtousethefollowingexpressioninyourdiscussion.IthinkthatInmyopinionIbelievethatWhydoyouthinkso?Whatsyourreason?,Discussion,Ithinktheyallcancalculatesomething.Itcandealwithsomemathsproblem.,Ibelievethattheyareourgoodfriends.Inoureverydaylife.wecannotfinishourworkquicklywithoutthem.,Inmyopinion,peopleimproveabacus,makeitmoreusefulandmakeitacomputer.Theyarebeingusedwidelyandconvenientlyintheworld.,Softdisc(floppydisc),CD-ROM,printer,scanner,mp3,USB,SomeInformationaboutthecomputersandtheinternet,HardwareSoftwareHostOutputProgramsMemoryDrivesDesk-topcomputerBusinesscomputerDigitalmovie,硬件,软件,主机,输出,程序,内存储器,驱动器,台式计算机,商务计算机,数字影像,Chatrooms,netbar,chatbarOn-linefriendsBeon-line,ontheinternetDown-loadfilesSendandreceivee-mailWebfansInternetsitesE-mailboxElectronicmailLocalAreaNetworkLoginLogoutnetizen,网吧,网友,上网，在线,下载文件,收发邮件,网迷,网址,电子邮件,电子邮件箱,局域网,登陆,注销,网民,Floppydisc,chips,monitor,modem,CD-ROM,scanner,Key-board,printer,UsingwordsandexpressionsFillintheblankswiththeproperwordsinthebox,Completethesentenceswithsomeofthewordsinthebox.,Monitor,mouse,keyboard,harddisc,floppydisc,CD-ROM,printer,modem,A_isusedtoseeyourdataonacomputer.A_ordiskisthemaindevicethatacomputerusestostoreinformation.A_isamachineforprintingtextorpicturesontopaper,especiallyoneconnectedtothecomputer.A_isusedtoputdataintoacomputer.A_isoftenusedtoconnectcomputerstoeachotherthoughphonelines.Datacanalsobestoredina_,whichissmallandcanbecarriedeasily.A_isadiscthatcontainscomputerdata.Itcanstorealargeamountofdata.,monitor,harddisk,printer,keyboard,modem,floppydisc,CD-ROM,CompactDiskReadonlyMemory,Discussion,Whatcancomputerbeusedfor?IthinkthatInmyopinionIbelievethatWhatsyourreason?Whydoyouthinkso?,IusethecomputerorInternetto:,typemyhomeworkdrawpicturesplaygamescommunicatewithmyfriends.gatherrelatedinformationformylessonsbuythethingsIlike,egbooksandclothes.listentomusicwatchmovies.,Pre-reading,Whatdoyouknowaboutcomputer?Forexample,canyounamesomepartsofcomputer?2.Howhavecomputerschangedourlives?,mouse,keyboard,monitor,Listentothetapeandanswerthequestions.,1.WhoamI?,Whowasthefirstpersontomaketheearliestcomputer?A.AlanTuringB.CharlesBabbageC.CharlesTuring,3.Whenwasthe“universalmachine”built?A.In1822B.In1642C.1936,computer,(B),(c),Readthetextagainandfindout,thechangesofcomputer,Changesofthecomputer:,Calculatingmachine,Analyticalmachine,Universalmachine,Artificialintelligence,network,(In1642),(In1822),(in1936),(Inthe1960s),internet,(Inthe1970s),1.Wherewereyouin1642?,3Whatwereyoucalledin1936?,4Whatdidyougetinthe1960s?,Whathappenedtoyouinthe1970s?,2Whathappenedtoyouin1822?,1Wherewereyouin1642?2Whathappenedtoyouin1822?3Whatwereyoucalledin1936?4Whatdidyougetinthe1960s?5Whathappenedtoyouinthe1970s?,InFrance,IwasbuiltasanAnalyticalMachinebyCharlesBabbage.,Universalmachine.,Igotmynewtransistors.,Iwasbroughtintopeopleshomes.,Comprehending,1Whoisthespeakerinthisstory?2Writedownthreesentencesfromthestorytosupportyouridea.,Acomputer.,1Thenin1822IwasbuiltasanAnalyticalmachinebyCharlesBabbage.2MyrealfatherwasAlanTuring,3However,peoplethoughtIwassimple-mindeduntiltheydiscoveredIhad“artificalintelligence.”,Lookatthetimelinebelow.Fillintheblankswithin-formationfromthereadingabove.Timeline1642:_:TheAnalyticalMachinewasmadebyCharlesBabbage1936:_1960s:_:Thefirstfamilyofcomputerswasconnectedtoeachother1970s:_Now:_,Thecomputerbeganasacalculatingmachine,1822,AlanTuringwroteabooktodescribehow,1960s,computerscouldbemadetowork,Computershadnewtransistorsandbecamesmaller,Computerswerebroughtintopeopleshomes.,Computersconnectpeopleallovertheworldtogether,Accordingtothetimelineandtheoutlinetofinishthesummaryaboutthetext,Thecomputer.asacalculatingmachinein1642,thenin1822,itwasasanAnalyticalMachineby.Attheyearof1936,AlanTuringtodescribehowcomputers.towork,andbuilda“universalmachine“tosolve.Withthedevelopmentof.,inthe1960s,computershadnewtransistorsandbecame,thenwereconnectedtoeachotherbytheinternet.Astheyearshad,computerswere.peopleshomes.Nowcomputershavebecomethemostimportantto.allovertheworldtogether.,Thesummaryaboutthetext,Thecomputerbeganonlyasacalculatingmachinein1642,thenin1822,itwasbuiltasanAnalyticalMachinebyCharlesBabbage.Attheyearof1936,AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork,andbuilda“universalmachine“tosolvemathematicalproblem.Withthedevelopmentofinformationtechnology,inthe1960s,computershadnewtransistorsandbecamesmallerandsmaller,thenwereconnectedtoeachotherbytheinternet.Astheyearshadgoneby,computerswerebroughtintopeopleshomes.Nowcomputershavebecomethemostimportanttoolstoconnectpeopleallovertheworldtogether.,Readthetextcarefully,findoutthedifficultpoints.,Homework,acalculatingmachine,in1642ananalyticalmachine,in1822auniversalmachine,in1936gotnewtransistors,in1960sconnected,network,intheearly1960sbroughtintopeopleshomes,in1970s,communicatewithbytheInternet,Iwasbornin_inFrance.In_,Iwasbuiltasan_,followinginstructionsfromcardswit