2024/4/2人教版高中英語(yǔ)必修二Unit3《Computers---Warmingup》課件2024/4/1人教版高中英語(yǔ)必修二Unit3《Com1abacus1.Lookatthesepictures.Inpairsdiscusswhattheyhaveincommon.Anabacusisanancienttoolusedforcounting.TheabacushasbeeninexistenceinChinasincethesecondcenturyBCuntilnow,althoughtheoldestcountingboardshavebeenfoundinfourthcenturyBCRome.abacus1.Lookatthesepicture2A

calculatorAcalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.AcalculatorAcalculatorisa3Hugecomputer

ThefirstelectroniccountingmachineincontinentalEurope.ItwasbuilttosolvesomemathematicalProblems.ThefirsttasksweresolvedonJanuary,4,1951.Butitistoobig.HugecomputerThefirstelectr4APC/desktopAPCisapersonalcomputerwhichcansolveallkindsofproblemsandisusedwidelynow.APC/desktopAPCisaperso5A

notebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.Alaptop/notebookcomputerAnotebookcomputerisakind6Personal

DigitalAssistant

Averysmalllightcomputerthatyoucancarrywithyou,andthatyouusetostoreinformationsuchastelephonenumbers,addresses,andappointments.SomePDAscansendandreceiveemail,andconnecttotheInternet.PersonalDigitalAssistantAv7RobotRobotisamechanicaldevicethatsometimesresemblesahumanandiscapableofperformingavarietyofcomplexhumantasksoncommandorbybeingprogrammedinadvance.

RobotRobotisamechanicaldev8Discusswhattheyhaveincommon?Youareaskedtousethefollowingexpressionsinyourdiscussion.

Ithinkthat…Inmyopinion…Ibelievethat…Discusswhattheyhaveincomm9Ithinktheyallcancalculatesomething.Theycandealwithsomemathproblems.

Ibelievethattheyareourgoodfriendsinourdailylife.Wecannotfinishourworkquicklywithoutthem.

Inmyopinion,theyarebeingused

widelyandconvenientlyintheworld.Ithinktheyallcancalculate10Doyouknowinwhatwayscomputersareusedtoday?doing

homeworkdrawingpicturesplayinggameswatchingmovieschattingwithfriendsgettinginformationlistening

tomusic…Doyouknowinwhatwayscompu11analyticalmachine（分析機(jī)）laptopcalculatingmachine（計(jì)算機(jī)器）robotPCuniversalmachine（通用機(jī)器）Canyouputtheseinventionsinanorderaccordingtothetimewhentheyappeared?p17analyticalmachine（分析機(jī)）Canyou12Task1:Choosethebestanswer.1.What’sthemainideaofthetext?A.Whatacomputeris.B.WhatacomputerisusedforC.Howthecomputerbecomespopular.D.Thehistoryofthecomputer.DTask1:Choosethebestanswer132.“I”inthepassagerefersto_____.A.ATVset B.AcomputerC.Aradio D.Theinternet3.Whenwasthecomputerthebiggest?A.In1642 B.In1936C.Inthe1940s D.Inthe1970sBC2.“I”inthepassagereferst144.Howoldisthecomputer?A.About370yearsoldBAbout270yearsold.C.About170yearsold.D.About470yearsold.A4.Howoldisthecomputer?A155.Whatcanyouinferfromthetext?A.Thecomputerhasartificialintelligence.B.Thecomputerchangesgreatlyovertheyears.C.Thecomputerwasnotconnectedbyanetworkuntilintheearly1960s.D.Nowthecomputercanonlybeusedtodealwithinformation.B5.Whatcanyouinferfromthe166.Whowasthefirstpersontomaketheearliestcomputer?A.AlanTuring.B.CharlesBabbage.C.CharlesTuring.D.CharlesAlan.7.Whenwasthe

universalmachine

built?A.In1822.B.In1642.C.In1936.D.In1940.BC6.Whowasthefirstpersonto178.Whathappenedtothecomputerinthe1960s?Itwasputintorobotsandusedtomakemobilephone.B.Itwasgivenafamilyconnectedbyanetwork.C.ItbegantobeputintospacerocketsD.Itbegantobeusedintheoffices.B8.Whathappenedtothecomput189.Whichistherightorder?

a.Thecomputerwasconnectedwithothercomputers.b.AlanTuringwroteabookaboutthecomputer.c.ThecomputerhasbeensenttoexploretheMoonandMars.d.Thecomputerbegantosimplifydifficultsums.A.a,b,c,d. B.b,c,a,d.C.d,a,c,b. D.d,b,a,c.D9.Whichistherightorder?D191.Wherewereyouin1642?

InFrance.2.Whathappenedtoyouafternearlytwohundredyears?IwasbuiltasanAnalyticalMachinebyBabbage.Task2:Answerthefollowingquestions.1.Wherewereyouin1642?Task203.Whatwereyoucalledin1936?Auniversalmachine.4.Whathappenedtoyouinthe1970s?

Ihavebeenusedinofficesandhomes.5.Whobuiltthefirstanalyticalmachine?

CharlesBabbagebuiltthefirstanalyticalmachine.3.Whatwereyoucalledin193216.Whowasthenextimportantpersontodesigncomputers?

AlanTuringwasthenextimportantpersontodesigncomputers.7.HowdidthecomputerworkasanAnalyticalMachine?

Thecomputerfollowedinstructionsfromcardswithholes.6.Whowasthenextimportant228.Whatchangesonlybecamepossibleasmymemoryimproved?

Manychangeshappenedtomysizeandbrainpower.

9.Whatnewapplicationshavebeenfoundforme?

IhavebeenwidelyusedinmanyfieldsandhavealsobeenputintorobotstoexploretheMoonandMars.8.Whatchangesonlybecamepo23Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidlybothinsizeandinbrainpower.ComprehendingReadthepassageandfinishthetimelinebelow.Thecomputerbeganasacalcul24Thecomputershadgrownasaroom.1960sComputerswereusedinofficesan