2023學(xué)年完整公開課版computers

UNIT3Computers四平市第一高級中學(xué)孫秀瑜Pre-readingSolveariddle:onethingIthasabigfaceWithmanykeysDownloadinformationTwobigearswhichcanplaymusicYoucanwatchTVorseeamovieusingitItcanbeseenintheoffice,classroomandathomeguessRiddles(謎語）：Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?guessWhoamI?abacusRiddles(謎語）：Iamveryverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?guessWhoamI?calculatorRiddles(謎語）：Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPCbecauseI’msmallenoughforyoutotakemewithyou.DoyouknowwhoIam?guessnetbookcomputerHowmuchdoyouknowaboutacomputer?GivetheEnglishnameofthefollowingpicturesofcomputercomponents(組件)ComputerhistorylaptopAhugecomputercalculatorPDAAPCabacus2011newsipad2Whatmakesupthecomputer?Andcanyounameeachpart?mouseKey-boardNIC/內(nèi)存screenSoundboxCPU/處理器（centralprocessingunit)Videocard/顯卡

Mainboard/主板

headphoneHarddiskWorkoutthenamesthepartofthecomputerthatlookslikeatelevisionthepartofthemonitorthatyoulookatSomethingyouusetoclickonthings(files,etc.)thepartofthecomputerthatstoresinformationthepartofcomputerthatwecanputaCDinmonitorscreenmousekeyboardharddiskDVD-ROMParagraph1Paragraph2Paragraph3OvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.ThesummaryaboutthetextThecomputerbeganonlyasacalculatingmachinein1642,thenin1822,itwasbuiltasanAnalyticalMachinebyCharlesBabbage.Attheyearof1936,AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork,andbuilda“universalmachine“tosolvemathematicalproblem.Withthedevelopmentofinformationtechnology,inthe1960s,computershadnewtransistorsandbecamesmallerandsmaller,thenwereconnectedtoeachotherbytheinternet.Astheyearshadgoneby,computerswerebroughtintopeoples’homes.Nowcomputershavebecomethemostimportanttoolstoconnectpeopleallovertheworldtogether.Timeline1642calculatingmachine:analyticalmachine1936AlanTuringwroteabooktodescribe……1960shadnewtransistors,smaller,connected1970speople’shomenowconnectallovertheworldThedevelopmentofcomputertechnologyA.universalmachineB.calculatingmachineC.PC(desktop/notebook)D.artificialintelligenceE.InternetF.analyticalmachineTheorder:BFADCEYouareaskedtousethefollowingexpressioninyourdiscussion.Ithinkthat…Inmyopinion…Ibelievethat…Whydoyouthinkso?What’syourreason?DiscussionIthinktheyallcancalculatesomething.Itcandealwithsomemathsproblem.Ibelieve

thattheyareourgoodfriends.Inoureverydaylife.Wecannotfinishourworkquicklywithoutthem.Inmyopinion,peopleimproveabacus,makeitmoreusefulandmakeitacomputer.Theyarebeingusedwidelyandconvenientlyintheword.IusethecomputerorInternetto:typemyhomeworkdrawpicturesplaygamescommunicatewithmyfriends.gatherrelatedinformationformylessonsbuythethingsIlike,egbooksandclotheslistentomusicwatchmoviesWhatcancomputerbeusedfor?

ConclusionThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolourfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.CDCCMultiple-choice1).WhydidItotallychangemyshape?()A.BecauseIcoulddomanythings.B.BecauseIcouldsimplifysums.C.Becausemymemoryimproved.D.BecauseIneverforgotanything.2).Howlongdidittakebeforethecomputerwasbuiltasananalyticalmachine?()A.nearly500yearsB.nearly300yearsC.nearly100yearsD.nearly200years3).Accordingtothelastparagraph,whichwasnotmentionedintheuseofthecomputer?()A.MobilephonesB.RocketsC.BikesD.Robots4).Whatcanweinferfromthechangeofcomputers?()A.Littlebylittlecomputerscanreallythinkandfeellikethepeople.B.Inthefuturecomputersmayrefusetoservethepeople.C.Scienceandtechnologydeveloprapidly.D.Soonerorlatercomputersmaytaketheplaceofhumanbeings.

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