高中英语人教版必修二unit3Reading.ppt

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1、Unit3ComputersGuessinggameGuess!Atoy?Ahandbag?ComputerskeyboardmousemonitorscreenspeakerhostcomputerWhatEnglishwordsdoyouknowaboutcomputers?①②③④⑤⑥Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemen

2、ow.DoyouknowwhoIam?abacusGuessmore:Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughth

3、eInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputer/laptopDoyouknowwhoIam?AhugecomputerPCthehistoryofthecomputerPDAcalculatorabacuslaptopWriteoutallthewordsyouknowaboutcomputers.computermonitorclicksoftwaresearchupdatedown

4、loadInternetkeyboardWhoamI?Skimming:Gooverthestorytofindoutwhothespeakeris.Writedown3sentencestosupportyouridea.Itisacomputer.●IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.●”MyrealfatherwasAlanTuring....”●IwasbuiltasanAnalyticalMachinebyCharles

5、Babbage.”TimelineThecomputerbeganasacalculatingmachineThecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.1642:_______________________________

6、________________1822:TheAnalyticalMachinewasmadebyCharlesBabbage.1936:______________________________________________________________________________________1940s:______________________________________________:Thefirstfamilyofcomputerswasconnectedtoeachother.

7、1970s:_________________________________________Now:____________________________________________________________________________________ScanningParagraph1Paragraph2Paragraph3TopicsentenceSupportingdetailsOvertimeIhavebeenchangedquitealot.CalculatingmachineAna

8、lyticalmachineUniversalmachinePClaptopThesechangesonlybecamepossibleasmymemoryimprovedTubesTransistorsChipsNetworkWorldwidewebSincethe1970smanynewapplicationshavebeenfoundforme.CommunicationsFin