高中英语 Unit3 Computers课件 新人教版必修.ppt

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1、Unit3ComputersAPC(personalcomputer)AnotebookcomputerTwokindsofcomputerswidelyusedIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusRiddles(谜语):Iamverysmall.Icanbeusedforcalcu

2、lating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorRiddles(谜语):Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyouto

3、takemewithyou.Notebook/laptopDoyouknowwhoIam?Riddles(谜语):AhugecomputerAPCthehistoryofthecomputerPDA/PalmtopDiscussionwhatcanweusecomputertodo?Workoutalistandcompareitwithyourpartner.Internetsendemails……playgamescommunicatewithmyfriends.gatherinformationformyles

4、sonslistentomusicwatchmoviesdoshoppingonlineReadingWhoamI?Howmuchdoyouknowaboutacomputer?Picturesandwords1243561.monitor2.screen3.CD-ROM4.mouse5.keyboard6.harddiskLabeleachpartthemaindevicethatacomputerusestostoreinformation.thepartofacomputerthatstoresinformat

5、ion1.modem2.scanner3.printer4.chips5.CPU53124devicelinkingacomputerwithatelephoneline.1.Whoisthetellerofthestory?2.Whatdoesthepassagemainlytalkabout?Computer.Ittalksaboutthehistoryandtheapplications(Use)ofcomputers.FastreadingSkimming:Listentothetapeandanswerth

6、efollowingquestions.3.Inwhichorderisthetextorganized?TimeTimeline1642:_____________________________________1822:TheAnalyticalMachinewasmadebyCharlesBabbage._____:_________________________________________________________1940s:____________________________________

7、________:Thefirstfamilyofcomputerswasconnectedtoeachother.1970s:_____________________________________Now:___________________________________________________________________ThecomputerbeganasacalculatingmachineThecomputergrewrapidlybothinsizeandinbrainpower.Comp

8、uterswereusedinofficesandhomesComputersconnectpeopleallovertheworldtogether.1936Thecomputerhadgrownaslargeasaroom.1960sPara.1Topicsentence:Supportingdetails:OvertimeIhavecha