BOOK 2第三单元Who am I课件

Unit3Computers2021/5/91First,let’splayagame!Whatarethey?2021/5/92Hugecomputer2021/5/93PC

(personalcomputer)laptop

(notebookcomputer)2021/5/94PDA(personaldigitalassistant)robot2021/5/95Similarity?They’recomputersindifferentstages.What’snext?2021/5/96i-robot(intelligentrobot)2021/5/97WHOAMI?

Unit3Computers——ReadingUnit3Computers——reading2021/5/98Task1Lookatthepicturesandthetitleofthereadingpassage.Predictwhatitisgoingtobeabout.Prediction2021/5/99Task2Lookattheseinventions.Puttheminorderaccordingtothetimewhentheyappeared.Afterreadingthepassage,checktoseeifyouwereright.( )analyticalmachine ( )laptop( )calculatingmachine ( )robot( )PC ( )universalmachine2145632021/5/910While-readingThedevelopmentofcomputers.2021/5/911Step2JusthaveafastreadingFindouttopicsentencesofeachparagraph.OvertimeIhavechangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.2021/5/912Step3Moredetailedreading!ReadPara.1in2minsandfindoutthedevelopmenthistotyofcomputers.I’llgiveyousomeclues.2021/5/9131936(1822)16421940sLatterAndlatter…acalculatingmachine,in1642ananalyticalmachine,(in1822),CharlesBabbageauniversalmachine,in1936,AlanTuringahugecomputer,aslargeasaroom,in1940sapersonalcomputerandalaptop,andusedinofficesandhomessincethe1970s…2021/5/914acalculatingmachine,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。2021/5/915ananalyticalmachine,(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。2021/5/916a“universalmachine”,in1936(notarealmachine,butjustamathematicalmodel)2021/5/917ahugecomputer,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ENIAC2021/5/918Para.22021/5/919technicalwordsMemory:storageorstoragecapacityasofacomputer,disk,etc.chiptransistortube2021/5/920networkTheWorldWideWeb2021/5/921Thesechangesonlybecamepossibleasmymemoryimproved.tubestransistorssmallchipsnetworkWorldWideWebmoreandmorepowerful!2021/5/922Para.3Findsomesupportingdetailsforthetopicsentence.1minute.Sincethe1970smanynew

applicationhavebeenfoundforme.2021/5/923Sincethe1970smanynewapplicationshavebeenfoundforme.communicationsfinancetraderobotsmobilephonesmedicaloperationsspacerocketsexploringtheMoonandMarsAnyhow,mygoalistoprovidehumanswithalifeofgoodquality.2021/5/924Name:computerBorn:(time)_______(place)__________Myrealfather:_______________Mysize:1._______________(inthepast)2.____________________(modern)Myhistory:1.1642___________machine2.1822__________machine3.1936__________machine4.1940s______________5.1970s

_______and______Mymemory:________________________Myapplications:_______________;________;_______________;________;_______________;______________;_______________...

WhoamI？1642FranceAlanTuringhugesmallerandsmalleranalyticalcalculatinguniversallaptopPCtubestransistorschipscommunicationfinancerobotmobilephonespacerocketmedicaloperationtradehugecomputer2021/5/925Paragraph2Paragraph3Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.SupportingdetailscalculatingmachineanalyticalmachineuniversalmachinePCtubestransistorssmallchipscommunicationsfinancetraderobotsmobilephonesMedicaloperationsspacerocketParagraph1TopicsentenceOvertimeIhavebeenchangedquitealot.2021/5/926Writingskillspersonification（拟人）narrativeperspective:first-personnarrative（叙述角度：第一人称角度）chronologicalorder(时间顺序)mainideasandsupportingdetails

（主旨+支撑细节）2021/5/927Howdoweusecomputersindailylife?ComputersBECDAcommunicationentertainmentinformationworkandjobcommerce/financeonline2021/5/928communicationchattingsendingE-mailsexpressingideasonlinemakingnewfriends…2021/5/929entertainmentplayinggameswatchingmovieslisteningtomusic…2021/5/930informationreadingnewssearchingforusefulinformation,suchaspriceinformation,jobinformationandsoonaskingquestionsandseekingforhelp…2021/5/931commerce/financeonlineshoppingonlinetransferringaccountspayingallkindsofbills,suchaswater&electricityfees,cellphonefeesandsoonspeculatinginstocksonline…2021/5/932workandjobusingcomputerstodojobsapplyingforjobsonlinedoingresearch…2021/5/933SummaryI,thec_________,wasacalculatingmachinein1642inF_______.In1936,Ibecamea“u________machine”tos_____anymathematicalproblem.Sincethe1970sIhavebeenusedfirstasaP___andthenasal______inofficeandh______.omputerranceniversalolveCaptopomes2021/5/934Manychangeshavehappenedtomys____,somys______totallychanged.Ihavebeenwidelyusedinmanyfields,Ihavealsobeenputintorobotstoe_______theMoonandMars.izehapexplore2021/5/935DiscussionShouldhighschoolstudentssurftheinternet(上网)?Ithinkhighschoolstudentsshouldsurftheinternetbecause…(first,secondly,thirdly)Ithinkhighschoolstudentsshouldnotsurftheinternetbecause…(first,secondly,thirdly…)2021/5/936AdvantagesWecancommunicatewithfriendsListentothemusicSeefilms&watchnewsPlaygamesDoshoppingSavealotoftimeDoalotofusefulthings2021/5/937DisadvantagesSomepeoplee