高中英语module2教学unit3warmingu.ppt

Unit 3 ComputersCD/DVD-ROM monitorLCD monitorLCD monitorCPUhard discmotherboardParts of computersCentral Processing Unitkeyboardmousemodemscannerprinterspeakerfloppy discUSB flash discCD/DVD/VCDMP3 player1.What is PC?Speak the whole name.It means:personal computer.2.What is IT?Information Technology.3.What is CD-ROM?Compact disc read-only memory.4.What is PDA?Personal digital assistant.5.What is?World wide web.6.科学技术。科学技术。Science and technology.7.人工智能。人工智能。Artificial intelligence.8.笔记本电脑。笔记本电脑。Notebook computer.Brainstorm computeron lineoff lineclicksoftwarehardwaresearchupdatedownloadInternetwebsiteThink as many words aspossible related to computersa search enginesurfother useful words and expressions about computerNetwork 网络网络Program程序程序Virus病毒病毒Hacker 黑客黑客Up load 上传上传Home page 主页主页Password密码密码Desk top 桌面桌面User name 用户名用户名1.Look at these pictures.What do2.they have in common?3.2.What do they tell you about the 4.development of computers?5.3.What do you think will be the next 6.development?Whats next?(What do they have in common?)vI think thatvIn my opinionvI believe thatvWhats your reason?vWhy do you think so?1.They can be used for calculating.2.They can deal with math problems.3.They are our friends.4.They are useful and helpful.Work in pairs.Try to put these inventions in an order according to the time when they appeared.Then read the passage quickly and check to see if you were right.()analytical machine ()laptop ()calculating machine ()robot ()PC ()universal machinePre-reading1.Who am I?2.Whats the main idea of the text?A.The computer wants to find“who he is”.B.The functions(功能功能)of the computer.C.The computer becomes popular around the world.D.The history and the applications of the computer.Look at the pictures and the title of the reading passage.Predict what it is going to be about.skimmingI am a computer.16421822The analytical machine was made by Charles Babbage.1940sThe computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.Finish the timeline 1936Computers had grown as large as a room.Size:brainpower:largermore powerfulThe first family of computers was connected to each other.1970s now1960sComputers were used in offices and homes.Computers connect people all over the world together.tubes transistorssmall chipslarge small sizesmall large memoryComputer:sizesmallerbrainpowerpowerfulParagraph 1Paragraph 2TopicsentenceParagraph3TopicsentenceOver time I have been changed quite a lot.These changes only became possible as my memory improved.Since the 1970s many newSince the 1970s many newapplications have been found for me.applications have been found for me.Reading for topic sentencesParagraph 1Paragraph 2Topic sentenceSupporting detailsOver time I have been changed quite a lot.Calculating machineAnalytical machineUniversal machinePC laptopThese changes only became possible as my memory improved.tubestransistorschipsnetworkWorld Wide WebParagraph 3Topic sentenceSupporting details communications finance trade robots mobile phones medical operations space rockets providing a life of high qualitySince the 1970s many new applications have been found for me.DevelopmentNameFunction PoorStrongA _ machine_difficult sumsAn _ machineThink _and produce an answer_A _ machineSolve difficult _calculatinganalytical universal mathematical problemsSimplifylogicallyquicklyDevelopment_ stored inTubesLargeSmall_Small chips_Narrow WideFinance_RobotsMobile phones_Space rocketsMedical operations MemoryTransistorsApplicationsCommunicationTrade I began as a _ _ in France in 1642.In 1822 I was built as an _ _.Then in 1936 Alan Turing wrote a book and built a _ _.As time _ _,I was made _.These changes became possible as my _ _.In the early 1960s they gave me a family _ _ _ _.Now people call it the World Wide Web.I have been _ _ _ _ _ since the 1970s.So I became a PC.Im happy to become a devoted friend and helper of the human race.calculating machineanalytical machineuniversal machinewent byconnected by a networkused in officessmallermemory improved and homes Brainstorm a list of uses for computers.with computers without computers1.Send emails2.Word processing3.Search for information4.Chat on line5.Watch films or series of TV programs6.Store information1.Write letters2.Write by hand or typewriter3.Look in library4.Go to the cinema5.Write everything down 1.use computer for school work You Your partner2.play games on the computer3.send emails to friends4.surf the Web for fun5.download music and films6.chat online7.search for information 8.look at photographs9.do shopping onlineHow do you use computers and the Internet?II.用括号内所给词的适当形式填空。用括号内所给词的适当形式填空。1.Music has been called the _(universe)language.2.Many kinds of _(calculate)machines have been invented since the 17th century.3.The _(develop)of the information technology was the greatest advance of the 20th century.development universalcalculating