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1、Unit 3 Computerskeyboardmousemonitorscreenspeakerhostcomputer What do they have in common?An abacusA calculatorA desktopA notebook computerdigital camera a laptoppalmtopReading: Who am I? Listen to the tape and answer these questions.2 Who was the first person to invent the earliest computer? 3 Who
2、was the next important person to design computers? CharlesBabbageAlanTuring1WhoamI?Acomputer.timeline1642: The computer began as a calculating machine. 1822: the Analytical Machine was built by Charles Babbage.1936: Alan Turing wrote a book to describe how computer could be made.1960s: Computer had
3、new transistors and became smaller.1970s: Computers were brought into peoples homes.Now: Computers connect people all over the worldtogether.ScanningCalculating machineComputerInternetAnalytical machineArtificial intelligenceUniversal machineThe development of computers:Useful phrasescalculating mac
4、hineAnalytical machinecard with holestechnological revolutionuniversal machineartificial intelligencego byby internethuman race计算器计算器分析机分析机穿孔卡穿孔卡技术革命技术革命万能机万能机,通用机器通用机器人工智能人工智能走过，过去走过，过去通过网络通过网络人类人类The development of computers:CalculatingmachineAnalyticalmachineUniversalmachineArtificialintelligence
5、ComputerInternetIntensive reading: Underline the phrases &sentences that you think are importantStar sentencesP1 L2 I followed instructions from cards with holes.P1 5 Earlier I was not very big, but then I became huge.P1 L6 However, people thought I was simple-minded until they discovered I had “art
6、ificial 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。P1 L8 As the years have gone by, I have been made smaller and smaller.P2 L1 There were times when my size was totally changed.P2 L3 But I was always s
7、o lonely standing there by myself,until in the early 1960s,they gave me a family connected 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连接的家庭。给了我一个用网络连接的家庭。Summary: what have we learned?1.some words about computers.2
8、 the development of computers3 some scientists relating to computers.Advantagesanddisadvantagesofthecomputers.Discussion advantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthings DisadvantagesSomepeopleespeciallytheteenagersabandon(沉
9、迷于沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.SomepeopleusethecomputerwronglyHomeworkReciteParaoneotherusefulwordsandexpressionsaboutcomputerNetwork 网络Website站点Program程序Virus病毒Hacker 黑客Download 下载Software 软件Hardware 硬件Up load 上传Home page 主页Password密码D
10、esk top 桌面User name 用户名Click 点击有一些共同之处have something in common头脑简单的Simple-minded心不在焉的absent-minded意志坚强的 strong-mindedIn a way：to a certain extent 在某种程度上In the way: 造成阻碍After all 毕竟；终究；归根结底Watch over : take care of 照料；照管。Wander v. 游荡；闲逛。He was wandering aimlessly.Wonder v. 感到好奇n 奇观I wonder who he is.
11、Learning about languageEX.11 totally2 revolution3 Artificial intelligence4 birth5 simple-minded6 go by7 deal with8 network9 truly10 anywayEX.2revolutionnetworkwentbytotallytrulysimple-mindedAnywaydealwithDiscovering useful structuresAstheyearshavegoneby,Ihavebeenmadesmallerandsmaller.myfamilyandIhav
12、ebeenusedbybillionsofpeopletodealwithInformation-Ihavetrulybeenbuilttoservethehumanrace-现在完成时的被动语态（现在完成时的被动语态（have/has+been+过去分词）过去分词）Someone has told me the sports meet might be put off. We have brought down the price. I havebeentold the sports meet might be put off.The price hasbeenbrought down. _
13、 Great changes_ in the city, since the reform and opening to the outside world, and a lot of factories _. A have been taken place, have been set upB have taken place, have been set upC have taken place, have set upD were taken place, were set up Theroadhasbeenrepaired.道路已经修好了。这本书已被译成英语。 Thisbookhasb
14、eentranslatedintoEnglish.1.This part of the seabed _(explore) many times.2.Much useful information about these planets _ (collect) since 1971.3.Much parking space in cities _(save) by using small cars.hasbeensaved hasbeencollectedhasbeenexplored5.They say that some icebergs in the Far South _(pull)
15、to Kuwait for drinking purposes in the future.6.These questions _ (discuss) at the next meeting.willbepulled willbediscussed 1 I know Mr. Brown; we_ to each other at an international conference.A are introduced B have been introducedC were introduced D had been introduced2 Have you ever_ to the exhi
16、bition which _ for three weeks?A gone; has been shown B visited; shown C been; has been on show D went; lasted3 The boy whom you lent the bike to _ by a car.A hit B be hit C having been hit D was hit 4 I want to buy that kind of cloth because I _ the cloth _ well.A have told; washed B have been told
17、; washesC was told; washed D have been told; is washedBCDB5 The mayor of Beijing says all construction work for the Beijing Olympics_ by 2006.A has been completed B has completed C will have been completed D will have completed6 The bridge_ away by floods and the fields_ by water.A had been washed ;
18、 were coveredB has been washing ; is covered C had been washed; had coveredD has been washed; is covering7 It has decided that well go on a study trip to London next summer.8 How long has this book been bought?CA IthasbeendecidedHowlongagowasthisbookbought?Using structuresIt has been reported that c
19、hildren will be off free education. It has been reported that free education will be offered to children.It has been said that we will be offered the latest computer science course book. It has been planned that the latest computer science course book will be offered to us.I have been told by Peter
20、that I will be lent his notebook computer for a week. I have been told by Peter that his notebook computer will be lent to me for a week.Translation1 This type/kinds of computer has been specially designed for teachers and students.2 The needs of the teachers and students have been greatly considere
21、d.3 With the help of computer, you may not find it hard to deal with and share information.4 Besides, you can easily communicate with people all over the world by Internet.5 This will cost a lot of money, but after all, it is worth buying a computer for every teacher.6 She uses the computer so well that she doesnt often write with a pen and paper.7 If a new situation arises, they will make up new programmes.同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
