新人教必修二_Unit_3_Computers-Reading[阅读课件].ppt

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1、Unit3ComputerskeyboardmousemonitorscreenspeakerhostcomputerIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.WhoamI?abacusRiddles(谜语):Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathe

2、maticalproblems.WhoamI?calculatorRiddles(谜语):Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputerWhoamI?Riddles(谜语):Reading:WhoamI?Listentothetap

3、eandanswerthesequestions.2Whowasthefirstpersontoinventtheearliestcomputer?3Whowasthenextimportantpersontodesigncomputers?CharlesBabbageAlanTuring1WhoamI?Acomputer.1642TheAnalyticalMachinewasmadebyCharlesBabbage.19361960sThefirstfamilyofcomputerswasconnectedbyanetwork.1970snowTime

4、Thecomputerbeganasacalculatingmachine．1822AlanTuringwroteabooktodescribehowcomputerscouldbemadetoworkandbuilta“universalmachine”．ComputershadnewtransistorsandbecameSmallandthin.1960sComputerswerebroughtintopeople'shomes．Computersconnectpeopleallovertheworldtogether.Scanning:Whati

5、stheorderofthetext?CalculatingmachineComputerInternetAnalyticalmachineArtificialintelligenceUniversalmachineThedevelopmentofcomputers:UsefulphrasescalculatingmachineAnalyticalmachinecardwithholestechnologicalrevolutionuniversalmachineartificialintelligencegobybyinternethumanrace计

6、算器分析机穿孔卡技术革命万能机,通用机器人工智能走过，过去通过网络人类Thedevelopmentofcomputers:CalculatingmachineAnalyticalmachineUniversalmachineArtificialintelligenceComputerInternetQ1:HowdidthecomputerworkasanAnalyticalMachine?Thecomputerfollowedinstructionsfromcardswithholes.Q2:Whatmakesthecomputertotallycha

7、ngehissize.NewtransistorsQ3:Inwhichwaydidcomputerstalktohumans?UsingBASIC.2.QuestionsQ4:howdidcomputerchangeinitssize,intelligence,speed,function?Andhowaboutpeople’sopinion?Size:Intelligence:Speed:Function:People’sopinion:smallerquickerclevererdealingwith…,communicatingwith…cleve

8、r&usefulcalculatingsimple-mindedTrueor