内蒙古准格尔旗世纪中学人教新课标高中英语必修二UNIT 3 COMPUTERS 课件 .ppt

1、Unit 3 Unit 3 ComputersComputersHeavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!keyboardmousemonitorscreenspeaker host computercamera What do they have in common?a calculatora robot(What do they have in common?)I think that In my opinion I believe that Whats your reason?Why do you think so?1.They ca

2、n be used for calculating.2.They can deal with maths problems.3.They are our friends.4.They are useful and helpful.DiscussionCD-DVD-ROM-DVD RWCRT monitorLCD monitorLCD monitorCPUhard discchips/motherboardsome hardware:使用阴极射线管(Cathode Ray Tube)的显示器 Liquid Crystal Display keyboardmousemodemscannerprin

3、terspeakerUSB flash discCD/VCD/DVDMemory:（存储器）other useful words and expressions about computer:Network 网络Virus病毒Download 下载Up load 上传Program 程序Website 站点Hacker 黑客Home page 主页Password 密码Desk top 桌面User name 用户名Click 点击Software 软件Hardware 硬件Home page 主页Reading:Who am I?Skimming:Read and answer these

4、questions: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 computertimeline1642:1822:1936:1940s:1960s:1970s:Now:Scanning:The computer began as a calculating machine.the Analytical Machine was bui

5、lt by Charles 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 second generationthe secon

6、d generation (1956-1963)(1956-1963)the third generation (1964-1971)the fourth generation (1971-)The first generationThe first generation (1945-1956)(1945-1956)The history of computersThe development of computers:Calculating machineAnalytical machineUniversal machineArtificial intelligenceComputerInt

7、ernet计算器分析机万能机，通用机器人工智能Develop-mentEarly daysNameFunctionPoorStrongA _ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalyticaluniversalmathematical problemsDevelop-mentNetwork times_ stored inTubesLargeSmall_Small chips

8、 _NarrowWideFinance_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,but then I

9、became _.P1 L6 However,people thought I was _ until they _ I had“artificial intelligence.”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可是，人们认为我头脑简单，直到发现我有人工智能时，他们才不那么想了。followedhugesimple-mindeddiscoveredP1 L8 As the years have _,I have been made smaller and smaller.P2 L1 There were _ when my size was _changed.P2

10、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，我被做得越来越小了。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60年代初，人们才给了我一个用网络连接的家庭。gone bytimestotally standingconnectedAdvantages and disadvantages of the computers.Discussion advantageswe cancommunica

11、te with friends listen to the music see films&watch news play games do shopping save a lot of time do a lot of useful thingsDisadvantagesSome people especially the teenagers abandon(沉迷于)themselves to the computer games and chatting on the Internet.As a result,they have little time to study.Some peop

12、le use the computer wrongly.1、Look at these pictures.In pairs discuss what they have in common.in common 共同的，共有的The two brothers have nothing in common.This is our wish in mon sense 常识have nothing/little/something/a lot in common有共同之处2、laptop 手提电脑I need a small,lightweight laptop.Language points3、wo

13、rk out a list and compare it with your pare with 把与相比较I compared the copy with the original,but there wa not much pare with/to 与相比（在句中做状语）compared with other girls,she is tall.做“与比较”时，既可以用with也可以用to但做“把比作”只能用to He compared his camera with/to mine.Books can be compared to friends.4、calculating machin

14、e 计算器 calculate 计算 It is a traditional way to calculate ones age.calculator 计算器 calculation 计算 where did I go wrong in my calculation?5、universal machine 通用机器universal 普遍的，通用的，宇宙的Humor is a universal language.Climate change is a universal problem.6、simplify 简化Try to simplify your explanation for the

15、 children.Sum 总数，算术题，金额 in sum 总而言之 In sum,theory should be combined with practice.a sum of 一笔 You will be fined a sum of money.7、logically 逻辑的They do not think logically,but emotionally.logical 合逻辑的，合情理的8、At that time it was considered a technological revolution and the start of my artificial intel

16、ligence.那时这被当做是一次技术革命，也是我“人工智能”的开始technological 科技的In the future,competition between nations will be increasingly based on technological skill.technology 工艺，科技，技术The firm has to overcome its resistance to new technology.intelligence n.智力，聪明，智能The bride unites beauty and intelligence.intelligent 智能的，

17、聪明的A dolphin is an intelligent animal.revolution 革命，变革 the Russian revolution 俄国革命 the computer revolution 电脑革命 artificial 人造的，人为的 artificial flowers人造花 This drink contains no artificial colors.矫揉造作的，虚假的She welcomed me with a rather artificial smile.9、solve解决，解答=settleThe dispute between the two cou

18、ntries was solved by compromise.Perhaps time would solve the problem.solution n.解决方法we must find the solution to the problem.10 fromon 从时起Your life will change from now on.11、by用作介词，“不迟于，到为止”和表示时间的状语连用，常用于完成时态。By the end of 2009,we had learned 6000 words.wonder:1 no wonder that=It is no wonder that

19、2 I wonder at his carelessness.3 I wonder if you can help me out of the difficulty.4 The Great Wall is one of the seven wonders of the world.12、reality 事实，现实 We must learn to face the reality.in reality=in fact 事实上，实际上13、As time went by,i was made smalleras 连词，“随着”表示事情的发展过程。As he grew older,he becam

20、e less patient.go by=pass经过，时间流逝A car went by.Two years went by before he got another letter from her.14、personal 个人的，亲自的，私人的The president made a personal appearance at the event.15、totally 总共的，完全的I totally agree with youthe total population of Britain.16、over time在这期间=over a period of time.We discu

21、ssed it over a bottle of wine.17、application n.应用，用途，申请He is busy writing a job application.application form 申请表make an application to sb for sth 向某人申请When should I make an application if I expect to enter the university?apply vt.申请，请求 vi.应用，运用Any of them can apply for the job.In this way they can b

22、etter apply theory to practice.18、finance n.金融，财政His father is an well-known expert in finance.Financial crisisFinancial center19、explore vt.探究，探索Before you discover,you must explore.Exploration n.探索Space exploration is still in its infancy.20、anyhow=anyway 无论如何，即使如此Anyhow I must tell the truth.Some

23、how 以某种方式，用某种方法We must stop him from seeing her somehow.Provide 提供，供给 Provide sb with sth 向某人提供某物 They provided him with money and clothes.Goal 目标，球门，（进球）得分 Achieve ones goal 实现目标 21、I am now filled with happiness that I am a devoted friend and helper of the human race.我现在真的很快乐，因为我是人类忠实的朋友和助手。That 引导同位语从句，解释happiness的内容。The news that our football team won the match was encouraging.我接受了你的建议，买了较贵的那种型号。I accepted your suggestion that I should buy the more expensive model.Homework1.Review the text2.Recite Para one3.Finish Ex.1/2 on Page 20.