高一英语 Book2 Unit3 Computers课件 人教新目标 课件VIP专享VIP免费

Period2Readingrobot1.rmvbEarliestcomputerNowadayscomputerWhoamI?Skimming:Itisacomputer.1.whoisthespeaker?2.What’sthepassageabout?It’saboutthehistoryofcomputer.Readthepassageagain.Findthetopicsentenceofeachparagraphandthesupportingdetails.Paragraph1:OvertimeIhavebeenchangedquitealot.1.calculatingmachine2.analyticalmachine3.universalmachine4.laptopSkimming:Q1:HowdidthecomputerworkasanAnalyticalMachine?Thecomputerfollowedinstructionsfromcardswithholes.Paragraph2:Thesechangesonlybecamepossibleasmymemoryimproved.1.tubes2.transistors3.chips4.network5.WorldWideWebParagraph3:Sincethe1970smanynewapplicationshavebeenfoundforme.1.communications2.finance3.trade4.robots5.mobilephones6.medicaloperations7.spacerockets8.providingalifeofhighquality2.Whichsentencecanbereplaced(代替）inthepassagebythefollowing?Later,IbecomesocleverthatIcanremembereverythingyoutoldme.Overtimemymemoryhasdevelopedsomuchthat,likeanelephant,IneverforgetanythingIhavebeentold.Summary•Atopicsentencesetsoutthemainideaofaparagraph.•Atopicsentenceisusuallythefirstorlastsentenceofaparagraph.1642TheAnalyticalMachinewasmadebyCharlesBabbage.19361940sThefirstfamilyofcomputerswasconnectedbyanetwork.1970snowTimeThecomputerbeganasacalculatingmachine．1822AlanTuringwroteabooktodescribehowcomputerscouldbemadetoworkandbuilta“universalmachine”．ComputershadnewtransistorsandbecameSmallandthin.1960sComputerswerebroughtintopeople'shomes．Computersconnectpeopleallovertheworldtogether.Whatistheorderofthetext?Q3:howdidcomputerchangeinitssize,intelligence,speed,function?Andhowaboutpeople’sopinion?Size:Intelligence:Speed:Function:People’sopinion:smallerquickerclevererdealingwith…,communicatingwith…clever&usefulcalculatingsimple-mindedTrueorFalse1.AlanTuringbuiltanAnalyticalMachinetosolveanymathematicalproblems.2.Peoplebegantorealizethatthecomputergotclevererandquickerwithtimepassing.3.Thecomputerbegantoservethehumanracesinceitwasbroughtintopeople’shomes.4.Sincethe1970s,thecomputerwasusedbypeoplearoundtheworldthroughtheInternet.5.Thelargerthecomputeris,themorememoryithas.FTFTFauniversalmachineitsbirthIbecamesmallandthinbutIgotclevererandcleverer,quickerandquicker.AndmymemorybecamesolargethatIcouldn’tbelieveit!Fillintheblanks:Ibeganasa_______________in1642inFrance.In1822Iwasbuiltasan___________.Thenin1936AlanTuringwroteabookandbuilta_____________.Astheyearshave______,Ihavebeenmade__________butIgot___________,__________.Inthe1960stheygavemeafamily_____________.NowpeoplecallittheInternet.Iwas________________inthe1970s.SoIbecamePC.SincemybirthIhavetrulybeenbuilttoservethehumanrace.calculatingmachineAnalyticalMachineuniversalmachinegonebysmallerandsmallerclevererandclevererquickerandquickerconnectedbyanetworkbroughtintopeople’shomesIn1642,acalculatingmachinewasusedinFrance.Thenin1822,theAnalyticalMachinewasmadebyCharlesBabbage.Itcouldfollowinstructionsfromcardswithholes.In1963,AlanTuring,therealfatherofcomputers,wroteabooktodescribehowcomputerscouldbemadetowokandbuilta“universalmachine”tosolveanymathematicalproblem.Later,peoplediscoveredthecomputerhad“artificialintelligence”.Inthe1960s,thecomputerhothisnewtransistors.Itssizewastotallychangesatthattime.Andintheearly1960s,thefirstfamilyofcomputerswereconnectedtoeachother.In1970scomputershavebroughtintopeople’shomes.NowcomputershavebeenusedbybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworldbytheInternet.ForSurfingonlineisharmfultotheyoungAgainstdebateForSurfingonlineisharmfultotheyoungHavebadeffectonstudyAwasteofmoneyAwasteoftimeAgainstSurfingonlineisgoodtotheyoungLearnCommunicateEntertainmentImproveadvantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthingsDisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.SomepeopleusethecomputerwronglyThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolorfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.AlanTuringcalculatincalculatingmachinegmachinePC(desktopPC(desktop/notebook)/notebook)analyticalmachineuniversalmachineartificialintelligenceInternetcompletingthechartbelow.CharlesBabbageThe“father”(inventor)ThehistoryofcomputerSupposeyouareareporter.NowyouareinterviewingMr./MissComputer.Samplequestions:Whatdoyouliketoeat?Whatareyourhobbies?Whatisyournewestfunction(功能)?Canyousaysomethingaboutyourfutureplan?etc.……Role-play