高一英语必修2Unit3-computers-warming-up课件

Thetechnologydevelopssoquicklythatmanynewthingsappearinhumanbeing’slife.Let’sguesswhattheyare:Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculating(计算)inthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacus['æbəkəs]Guess:Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematical(数学的)problems.DoyouknowwhoIam?Calculator['kælkjuleitə]Solveariddle:onethingIthasabigfacewithmanykeysIthastwobigearswhichcanplaymusicYoucanwatchTVorseeamovieusingitItcanbeseenintheoffice,classroomandathome.ItcandownloadinformationguessDoyouknowwhoIam?Ahugecomputer“银河”巨型计算机APC=personalcomputerAnotebookcomputerWecanseemanybrandsofcomputersLenovo联想Haier海尔神州Tinghuatongfang清华同方惠普HP(HewlettPackard)DellTCLAcer宏基thinking1.Whatdotheyhaveincommon?（Usingsomeofthefollowingexpressionsinyourdiscussion.）Ithinkthat…Inmyopinion…Ibelievethat…What’syourreason?Whydoyouthinkso?1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.……Whatmakesupthecomputer?Andcanyounameeachpart?GPU/显卡HarddiskMainboard/主板CPU/处理器(Centralprocessingunit)NIC/内存mouseKey-boardSoundboxscreenheadphoneⅣ.Readthroughthewordsinthebox.Usesomeofthemtonameeachpartofacomputerinthebox.MonitormousekeyboardharddiscfloppydiscCD-ROMprinterscannermodemChipsCPUfloppydiscchipsmonitormodemCD-ROMscannerkeyboardprinter1Amonitoris2Thescreenis3Akeyboardis4Amouseis5ACD-ROMis6Aharddiskis(a)thepartofacomputerthatstoresinformation.(b)thepartofthecomputerthatyoutypeon.(c)thepartofthecomputerthatlookslikeatelevision(d)somethingyouusetoclickonthings(files,etc.).(e)thepartofthemonitorthatyoulookat.(f)Themaindevicethatacomputerusestostoreinformation.Matchthewordswiththeirmeanings.ReadingUnit3ComputerScanthetextandthenanswerthefollowingquestions:1.Whoisthespeaker?2.Whatthetextmightbeabout?Scanning1.Whoisthespeaker?Itisacomputer.•Thisreadingpassageismainlyabouttheandtheofthecomputer.historydevelopmentFindoutthreesentencestosupportwhothespeakerisinthestory.1.Thenin1822Iwasbuilt….(Itselfwasthefirstdesignofacomputer)2.MyrealfatherwasAlanTuring.(Hedesignedthefirstrealcomputer.)3.However,peoplethoughtIwassimple-mindeduntil….,(Ithasartificialintelligence.)1.Wherewereyouin1642?3Whatwereyoucalledin1936?4Whatdidyougetinthe1960s?Whathappenedtoyouinthe1970s?2Whathappenedtoyouin1822?Timeline1642:_____________________________________________________________:TheAnalyticalMachinewasMadebyCharlesBabbage.1936:_________________________________________________________________________________________1960s:________________________________________________________________________________________ThecomputerbeganasacalculatingmachineinFrance.1822AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork.Computershavenewtransistorsandbecamesmaller._____:Thefirstfamilyofcomputerswasconnectedtoeachother.1970s:________________________________________________________Now:__________________________________________________________1960sComputerswerebroughtintopeople’shomes.Computersconnectpeopleallovertheworldtogether.Trueorfalse•1.CharlesBabbagewasthecomputers’realfather.•2.ThespeakerwasbuiltasanAnalyticalMachinein1822.•3.Thespeakerwascalledacalculatingmachinein1936.•4.Thespeakerwasgivenafamilyconnectedbyanetworkinthelate1960s.F[AlanTuring.]T[auniversalmachine][intheearly1960s]FFQ1:HowdidthecomputerworkasanAnalyticalMachine?Thecomputerfollowedinstructionsfromcardswithholes.Q2:Inwhichwaydidcomputerstalktohumans?UsingBASIC.Q3:Whatdoes“others”(2.6)referto?Othercomputers.3.QuestionsQ4:Whydidpeoplethinkthecomputerwassimple-minded?Becausethecomputerwasmadeasacalculatingmachineandwasusedtosolvemathematicalproblems.Q5:Inhowmanywaysdowesaythecomputerchanged?Whatarethey?•Size:•Intelligence:•Speed:•Function:•People’opinion:smallerquickercleverercalculating----dealingwith…,communicatingwith…simple-minded----clever&usefulapersonalcomputeracalculatingmachineananalyticalmachineanotebookcomputerahugecomputer12345Changesinsize•1._______________(earlier)•2._______________(inthepast)•3.____________________(modern)notverybighugesmallerandthinnerChangesofthemachineCalculatingmachineAnalyticalmachineUniversalmachineartificialintelligencePC(desktop/notebook)Internet?TimeDevelopmentinfunctionscalculatecalculatingmachine---AnalyticalMachine---followinstructionsuniversalmachine---solvemathematicalproblems;artificialintelligenceComputerconnectedbyanetworkshareinformationwithothers;talktoeachother;dealwithinformation;communicatewitheachotherDiscussion:whatotherfunctionswillcomputershaveinthefuture?Orwhatwillcomputersbelike?Usethefollowingexpressions:•Ithinkthat……•Inmyopinion……•Ibelievethat……•Itwouldbeniceif……•richerandricher;•strongerandstronger;•easierandeasierThenwhatshouldwedoifwewanttodevelopmorefunctionsofthecomputer?Studyhard.Learnasmuchknowledgeaswecan.Preparetobecomegreatscientists!SummaryThehistoryofcomputersName:computerBorn:(time)_______(place)_____Myfather:_____________________Mysize:1._______________(earlier)2._______________(inthepast)3.____________