必修二 unit3 computer公开课.ppt

《必修二 unit3 computer公开课.ppt》由会员上传分享，免费在线阅读，更多相关内容在PPT专区-天天文库。

1、Unit3ComputersWhoAmI?贵港市江南中学谭雅文Welcometomyclass!driver-lesscarWhocontrolsthecar?WhoAmI?Pre-reading:Predictwhatthepassgeisgoingtobeabout.personification(拟人)Fast-reading(Exercise1):Findoutthetopicsentenceofeachparagraphandunderlineonekeyword.(2mins)WhoAmIchangeimproveapplicationsPara.1Overtime,Ihavebe

2、enchangedquitealot.Para.2Thesechangesonlybecamepossibleasmymemoryimproved.Para.3Sincethe1970s,manynewapplicationshavebeenfoundforme.WhoAmIchangeimproveapplications1.16422.18223.19364.1940s5.1970sFirst↓then↓later↓1960s1.Ihavebecome...2.Ihavealsobeen...3.Ihaveevenbeen...Careful-reading(Exercise2):Find

3、outthesupportingdetailsofthekeyword(5mins)timeorderSentencespatternPara.1OvertimeIhavechangedquitealot.(in1822)(in1936)(inthe1940s)(inthe1970s)acalculatingmachine(in1642)ananalyticalmachinea“universalmachine”ahugecomputerapcandalaptopOvertimeIhavebeenchangedquitealot.①In1642,Ibeganasa...②In1822,Iwas

4、builtas...③In1936,Ibecamea...④Now,Ihavebeenusedin...Para.1(changes)Para.2Thesechangesonlybecamepossibleasmymemoryimproved.MemoryimprovetubeNetworkfirstthenlateruntiltheearly1960stransistorchipThesechangesonlybecamepossibleasmymemoryimproved.①First,itwas...②Andthen,...③Later,...④Untilthe1960s,...Para

5、.2(improve)Ihavebecome...Ihavealsobeen...Ihaveevenbeen...Para.3Sincethe1970smanynewapplicationshavebeenfoundforme.sentencepattern:communication,financeandtrade.robots,mobilephonesandmedicaloperations.spacerocketsandexploretheMoonandMarsIhavebeenusedinmanyfields,①suchascommunication...;robots...;ands

6、pacerokets...②Anyhow,mygoalis...Para.3(applications)First↓then↓later↓1960schangeimproveapplications1.16422.18223.19364.1940s...1.Ihavebecome...2.Ihavealsobeen...3.Ihaveevenbeen...timelineorderSentencepatternSupportingdetailsSupportingdetailsSupportingdetailsWhoAmI?Aself-introductiontocomputersSummar

7、y:thestructure(结构)ofthepassageBusTrainPhoneRobotWritingGiveaself-introductiontotheinventionmentionedinyourletter.*Title:________________*Person：_________________WhoAmIthefirstpersonWhoamI?changesimpro