unit3 computers reading.课件

Withthedevelopmentofscienceandtechnology,manynewthingsappearinhumanbeing’slife.Let’sguesswhattheyare:1.Withmeyoucanwatchdifferentprogrammesjustathome.I’mamachinethathasascreenwithmovingpicturesandsounds.Butwatchingmetoomuchisbadforyoureyes.TVset2.Iamamachinewhichmovesveryfastonfourwheels.Youneedalicense(执照)andmustbeverycarefulwhenyoudriveme.RollsRoyce,BenzandBMWaresomefamouskindsofme.car3.Iamamachinewhichisagoodhelperindoinghousework.Iwashclothesforpeople.WhoamI?washingmachine4.Amachinethatyouusetotalktootherpeopleeveninafar-awayplace.Weareconnectedbywireorradio.Noweachofusoftenhasanumber.WhoamI?telephone5.Itisamachine,whichyoucanusetotypeyourhomework,drawpictures,playgames,watchmovies,listentomusic,communicatewithyourfriends,gatherinformation…computer•Itisakindofcomputerwhichcanbetakenconvenientlylikeanotebook.AlaptopWhatEnglishwordsdoyouknowaboutcomputers?WhatisitinEnglish??mouse鼠标WhatisitinEnglish??CPU(centralprocessingUnit)中央处理器WhatisitinEnglish??Mainboard(主板)WhatisitinEnglish??Display/Monitor显示器computerInternetSearchKeyboardClickE-mailBlogBGillatesE-pal搜索键盘点击电子邮件网友博客Reading1.Inthepassage,“I”refersto_________.2.thetopicsentenceofeachparagraph.Paragraph1:paragraph2:paragraph3:Sothewholepassageismainlyabout_____________________________.Task1Scanning(略读)acomputerOvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.Fast-readingthedevelopmentofcomputers.Task2CarefulReading(细读)Readthepassagemorecarefullyandfindmoreinformationaboutcomputers.Thenfillinthetwoformsbelow.164219361940s1970snowThecomputer_________________machine．1822AlanTuring______________howcomputerscouldbemadetowork．Computershad_____________aroom.1960sFirstas____andthen________computerswereusedin______and______.Computersconnectpeopleallovertheworldtogetherasdevoted______and_______.Afamilyofcomputerswasconnectedbya_______.The_________machinewasmadebyCharlesBabbage.beganasacalculatinganalyticalwroteabookaboutgrownaslargeasaPCasalaptopnetworkofficeshomesfriendshelpersFromtheaboveform,wecanknowthatthetextiswritteninanorderof________timeLet’slistenandfindmoreinformationaboutthedevelopmentofcomputers.Listenandfillintheblanks.Earlydays(thefirstparagraph)NameFunction(功能)a1._________machinesimplifydifficultsumsan2._______machinethink3._______a4._______machinesolvedifficult5._______________________analyticallogicallyuniversalmathematicalproblemscalculatingnetworktimes(the2ndand3rdparagraph)6._________mymemorytubes7._________transistorssmallchipssincethe1970s8.___________havebeenfoundinmanyfields(领域).9._______________;finance;10.____;robots;mobilephones;11._______________;spacerocketsapplicationscommunicationtrademedicaloperationsItbeganasa________machinein1642inFrance.In1822itwasbuiltasan_______machine.Thenin1936AlanTuringwroteabookandbuilta_______machine.Astime______,itwasmadesmallerbutitsmemorygrew______and_____.Inthe1960stheygaveitafamilyconnectedbya______.NowpeoplecallittheInternet.Itwasusedin______and______sincethe1970s.Sinceitsbirthithastrulybeenbuilttohelpthe___________.calculatinganalyticaluniversalwentbylargerlargernetworkofficeshomesTestinclassSummaryhumanraceWhatareadvantagesanddisadvantagesofcomputers?Howcanwemakeuseofit?Shouldhighschoolstudentssurftheinternet(上网)?ComputerandInternettypeyourletterPlaycomputergamescommunicatewithmyfriends.searchusefulinformationlistentomusicwatchmovies……advantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthingsDisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.Thereisunhealthyinformaiononthenet.Youmayloseyourprivateinformation.Somepeopleusethecomputerwrongly.Thankyouforyourlistening!