高中英语 Unit 3 Computers warming up and reading课件 必修.ppt

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1、Guess!Atoy?Ahandbag?ComputersIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusGuessmore:Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?

2、calculatorIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputerDoyouknowwhoIam?AhugecomputerAPCthehistoryofthecomputerPalmtop(掌上型电脑)WhoamI?Skimming:Goovert

3、hestorytofindoutwhothespeakeris.Writedown3sentencestosupportyouridea.Itisacomputer.●IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.●”MyrealfatherwasAlanTuring....”●IwasbuiltasanAnalyticalMachinebyCharlesBabbage.”1642TheAnalyticalMachinewasmadebyCharlesBabbage.19361940sThefirst

4、familyofcomputerswasconnectedtoeachother.1970snowTimelineThecomputerbeganasacalculatingmachine．1822AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork．Computershadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes．Computersconnectpeopleallovertheworldtogether.Scanning:Tru

5、eorFalseAlanTuringbuiltanAnalyticalMachinetosolveanymathematicalproblems.Peoplebegantorealizethatthecomputergotclevererandquickerwithtimepassing.Thecomputerhasbegantoservethehumanracesinceitwasbroughtintopeople’shomes.Sincethe1970s,thecomputerwasusedbypeoplearoundtheworldthroughtheInterne

6、t.5.Thelargerthecomputeris,themorememoryithas.FTFTFauniversalmachineitsbirthIbecamesmallandthinbutIgotclevererandcleverer,quickerandquicker.AndmymemorybecamesolargethatIcouldn’tbelieveit!correctthewrongsentences1.Choosethebestanswers1)What’sthemainideaofthetext?A.Thecomputerwantstofind“wh

7、oheis”.B.Thefunctionalchangeofthecomputer.C.Thecomputerbecomespopulararoundtheworld.D.Thehistoryofthecomputer.Comprehending:2)Whatcanyouinferfromthetext?A.Thecomputerhasartificialintelligence.B.Thecomputerchangesalotovertheyears.C.Thecomputerwasnotconnectedbyanetwor