人教版BOOK 2第三单元Who am I课件

2First,let’splayagame!Whatarethey?HugecomputerPC(personalcomputer)laptop(notebookcomputer)PDA(personaldigitalassistant)robotSimilarity?They’recomputersindifferentstages.What’snext?i-robot(intelligentrobot)WHOAMI?Unit3Computers——ReadingUnit3Computers——reading9Task1Lookatthepicturesandthetitleofthereadingpassage.Predictwhatitisgoingtobeabout.Prediction10Task2Lookattheseinventions.Puttheminorderaccordingtothetimewhentheyappeared.Afterreadingthepassage,checktoseeifyouwereright.()analyticalmachine()laptop()calculatingmachine()robot()PC()universalmachine21456311While-readingStep2JusthaveafastreadingFindouttopicsentencesofeachparagraph.1.OvertimeIhavechangedquitealot.2.Thesechangesonlybecamepossibleasmymemoryimproved.3.Sincethe1970smanynewapplicationshavebeenfoundforme.Step3Moredetailedreading!ReadPara.1in2minsandfindoutthedevelopmenthistotyofcomputers.I’llgiveyousomeclues.1936(1822)16421940sLatterAndlatter…acalculatingmachine,in1642ananalyticalmachine,(in1822),CharlesBabbageauniversalmachine,in1936,AlanTuringahugecomputer,aslargeasaroom,in1940sapersonalcomputerandalaptop,andusedinofficesandhomessincethe1970s…acalculatingmachine,in1642帕斯卡计算器是由布莱斯·帕斯卡(BlaisePascal)发明的，帕斯卡计算器可以把一长串数字相加，在他的计算器中有一些互相联锁的齿轮，一个转过十位的齿轮会使另一个齿轮转过一位，人们可以像拨电话号码盘那样，把数字拨进去，计算结果就会出现在另一个窗口中。ananalyticalmachine,(in1822)分析机是由英国数学家查尔斯·巴贝奇设计的一种机械式通用计算机。它的设计逻辑却非常的先进，是大约100年后电子通用计算机的先驱。a“universalmachine”,in1936(notarealmachine,butjustamathematicalmodel)ahugecomputer,aslargeasaroom,inthe1940s尺寸（英尺）30×50电容(个)10000重量（吨）30开关(个)6000真空管(个)18800耗电（W）150000电阻(个)70000成本（1940年）$40万ENIACPara.2technicalwordsMemory:storageorstoragecapacityasofacomputer,disk,etc.chiptransistortubenetworkTheWorldWideWebThesechangesonlybecamepossibleasmymemoryimproved.tubestransistorssmallchipsnetworkWorldWideWebmoreandmorepowerful!Para.3Findsomesupportingdetailsforthetopicsentence.1minute.Sincethe1970smanynewapplicationhavebeenfoundforme.Sincethe1970smanynewapplicationshavebeenfoundforme.communicationsfinancetraderobotsmobilephonesmedicaloperationsspacerocketsexploringtheMoonandMarsAnyhow,mygoalistoprovidehumanswithalifeofgoodquality.Name:computerBorn:(time)_______(place)__________Myrealfather:_______________Mysize:1._______________(inthepast)2.____________________(modern)Myhistory:1.1642___________machine2.1822__________machine3.1936__________machine4.1940s______________5.1970s_______and______Mymemory:________________________Myapplications:_______________;________;_______________;________;_______________;______________;_______________...1642FranceAlanTuringhugesmallerandsmalleranalyticalcalculatinguniversallaptopPCtubestransistorschipscommunicationfinancerobotmobilephonespacerocketmedicaloperationtradehugecomputer26Paragraph2Paragraph3Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.SupportingdetailscalculatingmachineanalyticalmachineuniversalmachinePCtubestransistorssmallchipscommunicationsfinancetraderobotsmobilephonesMedicaloperationsspacerocketParagraph1TopicsentenceOvertimeIhavebeenchangedquitealot.Writingskills1.personification（拟人）2.narrativeperspective:first-personnarrative（叙述角度：第一人称角度）3.chronologicalorder(时间顺序)4.mainideasandsupportingdetails（主旨+支撑细节）Howdoweusecomputersindailylife?ComputersBECDAcommunicationentertainmentinformationworkandjobcommerce/financeonlinecommunicationchattingsendingE-mailsexpressingideasonlinemakingnewfriends…entertainmentplayinggameswatchingmovieslisteningtomusic…informationreadingnewssearchingforusefulinformation,suchaspriceinformation,jobinformationandsoonaskingquestionsandseekingforhelp…commerce/financeonlineshoppingonlinetransferringaccountspayingallkindsofbills,suchaswater&electricityfees,cellphonefeesandsoonspeculatinginstocksonline…workandjobusingcomputerstodojobsapplyingforjobsonlinedoingresearch…34SummaryI,thec_________,wasacalculatingmachinein1642inF_______.In1936,Ibecamea“u________machine”tos_____anymathematicalproblem.Sincethe1970sIhavebeenusedfirstasaP___andthenasal______inofficeandh______.omputerranceniversalolveCaptopomes35Manychangeshavehappenedtomys____,somys______totallychanged.Ihavebeenwidelyusedinmanyfields,Ihavealsobeenputintorobotstoe_______theMoonandMars.izehapexplore36Shouldhighschoolstudentssurftheinternet(上网)?Ithinkhighschoolstudentsshouldsurftheinternetbecause…(first,secondly,thirdly)Ithinkhighschoolstudentsshouldnotsurftheinternetbecause…(first,secondly,thirdly…)37AdvantagesWecancommunicatewithfriendsListentothemusicSeefilms&watchnewsPlaygamesDoshoppingSavealotoftimeDoalotofusefulthings38DisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.Somepeopleusethecomputerwrongly.Ifyouspendtoomuchtimeonit,itwilldoharmtoourhealth.39ConclusionThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolorfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.HomeworkThemovie