高一人教必修二第三单元导入和阅读.ppt

Computers,Howmuchdoyouknowaboutacomputer?,HerearetheEnglishnamesforthecomputercomponents(组件),keyboard,mouse,monitor,screen,speaker,hostcomputer,1,2,3,4,5,6,monitorscreenmousekeyboardharddiskDVD-ROM,(1)thepartofthecomputerthatlookslikeatelevision.(2)thepartofthemonitorthatyoulookat.(3)somethingyouusetoclickonthings(files,etc.)(4)thepartofthecomputerthatyoutypeon.(5)thepartofacomputerthatstoresinformation.(6)ThepartofcomputerthatwecanputaCDin.,Workoutthenames,WhatisitinEnglish?,Mainboard(主板),CPU(centralprocessingUnit)中央处理器,RAM(随机存储器)(RandomAccessMemory),Powersupply(电源),displaycard显卡,harddisc硬盘,floppydisc,DVDROM数字通用光盘,USBFlashDisk,Modem调制解调器,Scanner扫描仪,Printer打印机,仿真机器人,robot,WhatcanweuseComputerandInternetfor?,typemyhomework,drawpictures,playgames,communicatewithmyfriends.,gatherinformationformylessons,listentomusic,watchmovies,wordsandexpression,数学的计算器信息技术个人电脑依.看,据.认为优点缺点算盘掌上电脑,Vt.,Calculate,InformationTechnology,PersonalComputer,advantagedisadvantageabacusbks】palmtopp:mtp,Inonesopinion,Mathematical,Calculator(n.),IT,PC,IntelligenceAnalytical,nlitik,-klmachineUniversalmachineTransistortrnsist】ArtificialintelligenceTechnologicalrevolutionfunction,智力分析机通用机晶体管人工智能科技革命功能,NewWordsandExpressions,()analyticalmachine()laptop()calculatingmachine()robot()PC()universalmachine,1,2,3,4,5,6,Fast-reading:Whatisthedevelopmentofcomputers?,Thisisashort_ofthe_ofcomputers.,Themainideaofthepassage:,history,development,listening,Thecomputerbeganasacalculatingmachine,Thecomputergrewrapidlybothinsizeandinbrainpower.,Finishpage19whenyouarereading.,1,Scanning(4min):,Computershadgrownaslargeasaroom.,1960s,Computerswereusedinofficesandhomes.,Computersconnectpeopleallovertheworldtogether.,analyticalmachine,universalmachine,PC,laptop,transistors,chips,network,WorldWideWeb,trade,robots,mobilephones,medicaloperations,spacerobots,OvertimeIhavebeenchangedquitealot.,Thesechangesonlyasmymemoryimproved.,Sincethe1970smanynewapplicationsforme.,Completethechartbelow,2,TrueorFalse?In1642Ibeganasacalculatingmachineandcouldsolveanymathematicalproblem.MyrealfatherwasCharlesBabbage,whowroteabookandbuildmein1936.AfterIgotmynewtransistorsinthe1960s,Ibecamesmallerbutclevererandquicker.Iwasbroughtintopeopleshomesinthe1970s.SincemybirthIhavebeenbuilttotaketheplaceofhumanrace.,F,F,T,T,F,calculating,AlanTuring,serve,5.Whatcanweinferfromthetext?,A.Acomputercantaketheplaceofthehumanracetodoanyworkinthefuture.B.Thesmalleracomputeris,thefasteritcalculates.C.Computerscansolvealltheproblemsofthehumanrace.D.Peoplecanbenefitmorefromcomputersinthefuture.,Changesofthemachine,Calculatingmachine,Analyticalmachine,Universalmachine,Machinewithartificialintelligence,Machinewithnewtransistor,Afamilyconnectedbyanetwork,AfamilyusedbytheInternet,retell,In1642,In1822,In1936,Inthe1960s,Nowadays,AlanTuring,CharlesBabbage,In1642,acalculatingmachinewasusedinFrance.Thenin1822,theAnalyticalMachinewasmadebyCharlesBabbage.Itcouldfollowinstructionsfromcardswithholes.In1963,AlanTuring,therealfatherofcomputers,wroteabookabouthowthecomputerscouldbemadetoworkasa“universalmachine”tosolveanydifficultmathematicalproblem.Later,peoplediscoveredthecomputerhad“artificialintelligence”.Inthe1960s,thecomputerhadhisnewtransistors.,Changesofthecomputer,Itssizewastotallychangedatthattime.Andintheearly1960s,thefirstfamilyofcomputerswereconnectedt