高中英语必修二第三单元reading.ppt

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1、Unit3ComputersUnit3Computers单元课件（人教课标必修2）GuessinggameIamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusRiddles(谜语)Iamverysmall.Icanbeusedforcalculating.InChina,alotofs

2、tudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIamverybig.Scientistsusemetosolvesomemathematicalproblems.hugecomputerDoyouknowwhoIam?PCPersonalComputerI’masmall,relativelyinexpensivecomputerdesignedforanindividualuser.I’mbasedonthe

3、microprocessortechnology.Athome,peopleusemetosurftheInternetandplaygames.DoyouknowwhoIam?Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewi

4、thyou.DoyouknowwhoIam?laptopPDAPersonalDigitalAssistantIamsosmallinsizethatIcanfitinyourhand.Iusuallyhaveasmallscreenusuallybiggerthanadigitalphone,howeversmallerthanthesmallestlaptop,I’magreatwaytostoretelephonenumbers,accesstheinternet,makecalculations

5、,andsoon.DoyouknowwhoIam?PDAabacuscalculatorhugecomputerPClaptopWhat’snext?Canyoutellthedevelopmentofcomputers?robotWHOAMI?ReadingSkimmingtogetmainidea1.Whoisthespeakerinthisstory?2.What’sthemainideaofthispassage?A.Thedevelopmentofcomputers.B.Thedevelopm

6、entanduseofcomputers.C.Amachinewhichissimple-minded.D.Computersmayreplacehumanbeings.Acomputer.SkimmingReadingComprehensionIScanningtogetdetailinformation1.Whowasthefirstpersontomaketheearliestcomputer?A.AlanTuring.B.CharlesBabbage.C.CharlesTuring.D.Alan

7、Babbage.2.Whenwasthe“universalmachine”built?A.In1822.B.In1642.C.In1936.D.In1970.ScanningReadingComprehensionⅡ3.Whenwasthecomputerthebiggest?A.In1642.B.In1936.C.Inthe1940s.D.Inthe1970s.4.Howoldisthecomputer?A.About170yearsold.B.About270yearsold.C.About370

8、yearsoldD.About470yearsold.Scanning5.Whichofthefollowingisintherightorderoftime?Thecomputerwasconnectedwithothercomputers.b.AlanTuringwroteabookaboutthecomputer.c.ThecomputerhasbeensenttoexploretheMoonandMars.d.Thecomputer