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1、Unit 3 Computers1unit3-computersLook at the following pictures and tell their English names.abacuscalculator2unit3-computershuge computer PCpersonal computer3unit3-computerslaptopPDA Personal Digital Assistant4unit3-computersrobot5unit3-computersCan you tell the development of computers?abacuscalcul
2、atorhuge computerPClaptopPDArobot6unit3-computersDo you know in what ways computers are used today? 7unit3-computerssearch for informationwatch movies8unit3-computerslisten to musicread books and magazines9unit3-computersbuy things onlineplay games on the computer10unit3-computersReading Who am I?11
3、unit3-computersanalyticaladjanalyticaladjanalyticaladjanalyticaladj分析的分析的分析的分析的calcucatevtcalcucatevtcalcucatevtcalcucatevt计算计算计算计算sumnsumnsumnsumn总数，算术题总数，算术题总数，算术题总数，算术题operatornoperatornoperatornoperatorn操作员操作员操作员操作员simplifyvtsimplifyvtsimplifyvtsimplifyvt简化简化简化简化logicaladjlogicaladjlogicaladjlog
4、icaladj合逻辑的合逻辑的合逻辑的合逻辑的revolutionnrevolutionnrevolutionnrevolutionn革命革命革命革命artificialadjartificialadjartificialadjartificialadj人造的人造的人造的人造的intelligencenintelligencenintelligencenintelligencen智力智力智力智力tubentubentubentuben管子，电子管管子，电子管管子，电子管管子，电子管transistorntransistorntransistorntransistorn晶体管晶体管晶体管晶体管c
5、hipnchipnchipnchipn碎片，芯片碎片，芯片碎片，芯片碎片，芯片networknnetworknnetworknnetworkn网络网络网络网络applicationnapplicationnapplicationnapplicationn应用应用应用应用financenfinancenfinancenfinancen金融金融金融金融rocketnrocketnrocketnrocketn火箭火箭火箭火箭explorevt/viexplorevt/viexplorevt/viexplorevt/vi探索探索探索探索MarsnMarsnMarsnMarsn火星火星火星火星12uni
6、t3-computersParaI:ParaI:ParaII:ParaII:ParaIII:ParaIII:Who am I?Over time I have been changed quite a lot.These changes only became possible as my memory improved.Since the 1970s many new applications have been found out for me.Skim the passage and find out the topic sentence in each paragraph. 13uni
7、t3-computersDo you know the main idea of this passage?A.Thedevelopmentofcomputers.B.Amachinewhichissimple-minded.C.Thedevelopmentandtheapplicationsofcomputers.D.Computersmayreplacehumanbeings.14unit3-computersParagraph 1Paragraph 2Paragraph 3Topic sentenceOvertimeIOvertimeIhavebeenhavebeenchangedcha
8、ngedquitealot.quitealot.TheseThesechangesonlychangesonlybecamebecamepossibleasmypossibleasmymemorymemoryimproved.improved.Sincethe1970sSincethe1970smanynewmanynewapplicationsapplicationshavebeenhavebeenfoundforme.foundforme.Completethechartbelow.Completethechartbelow.15unit3-computersSupporting deta
9、ils（find out some key words）CalculatingCalculatingmachinemachineAnalyticalAnalyticalmachinemachineUniversalUniversalmachinemachinePersonalPersonalcomputercomputerlaptoplaptopTubesTubesTransistorsTransistorsChipsChipsNetworkNetworkWorldWideWorldWideWebWebCommunicationsCommunicationsFinanceFinanceTrad
10、eTradeRobotsRobotsMobilephonesMobilephonesMedicaloperationsMedicaloperationsSpacerocketsSpacerocketsProvidingalifeofProvidingalifeofhighqualityhighqualityParagraph 1Paragraph 2Paragraph 316unit3-computersRead para 1 and fill in the chart. Careful readingTime Machine ApplicationsIn 1642A _machine_dif
11、ficult sumsAbout in _ An analytical machineThink_In 1936A _machineSolve any difficult problemBy the 1940sA larger machine_worried the designers_Personal computer/Laptop _calculatingSimplify1842logicallyuniversalRealitySince the 1970sUsed in offices and homes17unit3-computers1.My shape didnt change e
12、ven though my memory improved.2.The older I am, the larger I have become.3.Over time I have large memory so that I will not forget anything I have been told.4.I was able to share my knowledge with others through the World Wide Web in the early 1960s.FFTTThe information was stored in tubes, then on t
13、ransistors and later on the chips.As I have grown older I have also grown smaller.Read para 2 and then tell the statement true or false. 18unit3-computers12What roles do computers play in the life of human beings?What are the new applications of the What are the new applications of the computer?comp
14、uter?Read Para 3 and then answer the following questions. unit3-computersWhat are the new applications of the computer?communicationcommunicationtradetrademedicaloperationmedicaloperationspacerocketsspacerocketsrobotsrobotsmobile phonesfinancefinanceunit3-computersWhat roles do computers play in the
15、 life of human beings?They provide humans with a life of high quality.They are devoted friends and helpers of the human race.unit3-computers I began as a _ _ in 1642 in France. In 1842 I was built as an _ _. Then in 1936 Alan Turing wrote a book and built a _ _. As time_ _, I was made _ but my memor
16、y got _ and _. In the 1960s they gave me a family connected by_ _. Now people call it the Internet. I was used in _ and _ in the 1970s. Since my birth I have truly been built to serve the human race.calculating machineanalytical machineuniversal machinewent bysmaller largerlarger a networkofficeshom
17、esRetell the passage. unit3-computers ConclusionThere is no doubt that the computer has two sides ,too. If we make good use of it, it will make our lives more colorful and convenient. But dont lose yourself in playing computers. Just remember: Keep fit and study hard.unit3-computers Homework Write a
18、 short passage about the development of the mobile phone.1.1.19731973年，世界上出现第一部移动电话。（mobile mobile phonephone）2.2.19851985年，第一台现代意义上的移动电话诞生。经过一段时间手机已经变化了很多。（modern mobile modern mobile phonephone）3.3.此后，手机向人工智能发展。（artificial artificial intelligenceintelligence）4.4.现在手机有很多功能，人们离不开智能手机。（smart phonesmart phone）unit3-computers
