高中英语_Unit3《Computers》课件16_新人教版必修2.ppt

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1、 Unit 3 ComputersUnit 3 Computers Period 1Period 1 Warming up Warming upHeavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!Have the computer and Internet become part of your life?How have computer changed our lives?(What can you use them to do?)Computer and Internet type my homeworkdraw picturesplay ga

2、mescommunicate with my friends.gather information for my lessonslisten to musicwatch moviesHow much do you know about a computer?Give the English name of the following pictures of the computer components(组件组件)keyboardmousemonitorscreenspeaker host computercamera1 A monitor is2 The screen is3 A keybo

3、ard is4 A mouse is5 A CD-ROM is6 A hard disk is (a)the part of a computer that stores information.(b)the part of the computer that you type on.(c)the part of the computer that looks like a television(d)something you use to click on things(files,etc.).(e)the part of the monitor that you look at.(f)a

4、separate disk that contains lots of information.Match the words with their meanings.Match the words with their meanings.移动硬盘移动硬盘USBFlash disc 1 TB 固态硬盘固态硬盘1T硬盘硬盘Harddisc:CPUhard discfloppy discUSB Flash Disk CD-DVD-ROM-DVD RWCRT monitorLCD monitorLCD monitorCPUhard discchips/motherboardsomehardware:

5、使用阴极射线管(CathodeRayTube)的显示器LiquidCrystalDisplayCore2Duo 酷睿酷睿2:4核核龙芯龙芯8核核cpu:What is it in English?Main board(主板主板)printerscannermodemWordPuzzleAnoldcalculatingmachineusedinChinauntilnow.An abacusvItisbuilttosolvesomemathematicalproblems.Butitistoobig.A huge computerItisanewcalculatingmachinewhichcan

6、solvealargenumberofmathematicalproblems.A calculatorItisapersonalcomputerwhichcansolveallkindsofproblemsandisusedwidelynow.A PC(personal computer)Itisakindofcomputerwhichcanbetakenconvenientlylikeanotebook.A notebook computer What do they have in common?an abacusa calculatora desktopa notebook compu

7、tera laptop(What do they have in common?)I think thatIn my opinionI believe thatWhats your reason?Why do you think so?1.They can be used for calculating.2.They can deal with maths problems.3.They are our friends.4.They are useful and helpful.Discussionwork for us in Mars(火星火星)Whatsnext?carry thingsw

8、ork in wars (战斗战斗)Thesimulationrobotentertainment 娱乐娱乐What do you think will be the next development?other useful words and expressions about computer:Network网络网络 Virus病毒病毒Download 下载下载Up load 上传上传Program程序程序Website站点站点Hacker 黑客黑客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Click 点击点击Softw

9、are 软件软件Hardware 硬件硬件Home page 主页主页I.根据下列各句句意及所给单词的首字母根据下列各句句意及所给单词的首字母II.或汉语提示，写出该单词的正确形式。或汉语提示，写出该单词的正确形式。1.An a_ is a calculating tool for dealing with figures in ancient China.2.One Laptop per Child is a non-profit association devoted to research to develop a$100 l_ for every child in the world.

10、abacuslaptop3.During the course,students will develop their _(分析的分析的)skills.4.In final examinations,senior high students are not allowed to use _（计算器）（计算器）.5.The _（掌上电脑）（掌上电脑）is a computer that fits in your hand.calculatorsPDA analyticalII.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 _(

11、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 universalcalculatingdigital camera a robotReading:Who am I?Skimming:Read and answer these questions:

12、2.Who was the first person to invent the earliest computer?3.Who was the next important person to design computers?Charles BabbageAlan Turing1.Who am I?A computer.timeline1642:1822:1936:1940s:1960s:1970s:Now:Scanning:The computer began as a calculating machine.the Analytical Machine was built by Cha

13、rles Babbage.The computer grew rapidly both in size and in brainpower.Computer had grown as large as a room.Computers were used in officers and homes.Computers connect people all over the world together.the first family of computers was connected to each other The history of computersthe second gene

14、rationthe second generation (1956-1963)(1956-1963)the third generation (1964-1971)the fourth generation (1971-)The first generationThe first generation (1945-1956)(1945-1956)The development of computers:Calculating machineAnalytical machineUniversal machineArtificial intelligenceComputerInternet计算器计

15、算器分析机分析机万能机万能机,通用机器通用机器人工智能人工智能Develop-mentEarly daysNameFunctionPoorStrongA _ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalyticaluniversalmathematical problemsDevelop-mentNetwork times_ stored inTubesLargeSmall_Sma

16、ll chips _Narrow WideFinance_RobotsMobile phones_Space rocketsMedical operations MemoryTransistorsApplications CommunicationTradeIntensive reading:Underline the phrases&sentences that you think are importantStar sentences:P1 L2 I _instructions from cards with holes.P1 5 Earlier I was not very big,bu

17、t then I became _.P1 L6 However,people thought I was _ until they _ I had“artificial intelligence.”我执行穿孔卡的指令我执行穿孔卡的指令早些时候我并不是很大，但是后来我变得非常大早些时候我并不是很大，但是后来我变得非常大可是，人们认为我头脑简单，可是，人们认为我头脑简单，直到发现我有人工智能时，直到发现我有人工智能时，他们才不那么想了。他们才不那么想了。followedhugesimple-mindeddiscoveredP1 L8 As the years have _,I have been

18、made smaller and smaller.P2 L1 There were _ when my size was _changed.P2 L3 But I was always so lonely _ there by myself,until in the early 1960s,they gave me a family _ by a network.随着岁月的流逝，随着岁月的流逝，我被做得越来越小了我被做得越来越小了.有段时期我的体积完全变了有段时期我的体积完全变了但是我总是孤孤单单地站在那里，直到但是我总是孤孤单单地站在那里，直到60年代初，年代初，人们才人们才给了我一个用网络

19、连接的家庭。给了我一个用网络连接的家庭。gone bytimestotally standingconnectedAdvantages and disadvantages of the computers.Discussion advantages we cancommunicate with friends listen to the music see films&watch news play games do shopping save a lot of time do a lot of useful things DisadvantagesSome people especially the teenagers abandon(沉迷于沉迷于)themselves to the computer games and chatting on the Internet.As a result,they have little time to study.Some people use the computer wrongly.Homework1.Review the text2.Recite Para one3.Finish Ex.1/2 on Page 20.