1、Unit 3 ComputersHeavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!Guess!A toy?A handbag?I am very old now.I was born in China.Many people used me for calculating in the past,but now I am a bit lonely because they dont like me now.Do you know who I am?Do you know who I am?abacusGuess more:I am very sma
2、ll.I can be used for calculating.In China,a lot of students use me when solving mathematical problems.Do you know who I am?Do you know who I am?calculator I can be used for calculating.Besides,I can also be used for watching DVD,sending e-mail and communicating through the Internet.However,I am not
3、a PC,because Im small enough for you to take me with you.notebook computer/laptopDo you know who I am?Do you know who I am?What do they have in common?An abacusA calculatorA desktopA notebook computer(What do they have in common?)I think that In my opinion I believe that Whats your reason?Why do you
4、 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.DiscussionA huge computerA PCPalmtop(掌上电掌上电脑脑)calculatorabacuslaptopwork for us in Mars(火星火星)Whats next?carry thingswork in wars (战斗战斗)仿真机器人entertainment 娱乐娱乐What do
5、you think will be the next development?Give the English name of the following pictures of the computer components(组件组件)What is it in English?Main board(主板主板)What is it in English?CPU(central processing Unit)中央处理器中央处理器What is it in English?hard discWhat is it in English?Keyboard(键盘键盘)What is it in En
6、glish?monitorscreenWhat is it in English?mouse鼠标鼠标DVD ROMkeyboardmousemonitorscreenspeaker host computerCD/DVD-ROMCRT monitorLCD monitorCPUhard discchips/motherboardkeyboardmousemodemscannerprinterspeakerfloppy discUSB flash discCD/DVD/VCDMP3 player Write out all the words you know about putermonito
7、rclicksoftwaresearchupdatedownloadInternetkeyboardother useful words and expressions about computerNetwork 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Desk top 桌面User name 用户名Click 点击Some words on the Internet:netizen 网民网民Net surf 网络漫游网络漫游comp
8、uter virus 计算机病毒计算机病毒cyber 计算机的，网络的计算机的，网络的browse 浏览浏览cyberspace 网络空间网络空间scroll 滚动显屏滚动显屏access charge 接入费接入费cursor 光标光标BBS 公告板服务公告板服务 backer 黑客黑客chat room 聊天室聊天室click 点击点击 What are the advantages and disadvantages of the computers?In my opinion,I can use the computerto.DiscussionWe can use the compu
9、ter to.We can use the computer to.listen to musicWatch moviessearch for communicate withdo shopping AdvantagesWe can use the compuers to1.use a computer for school work2.play games on the computer3.send emails to friends4.download music and films5.go shopping on line6.use QQ to make municate with ot
10、hers 8.use the Internet to search for information9.surf the web for fun 10.read news both at home and abroad,read books and magazines Disadvantages1.Some students may get too addicted(沉沉溺于溺于)to it.2.Some students waste too much time in playing computer games.3.Some students spend too much time in ch
11、atting with others and may be cheated(欺骗欺骗)by someone on line.4.As a result,they have little time to study 5.It is bad for our eyes and health to spend long time in front of computers.Unit 3 ComputersA huge computerA PCPDA(掌上电脑掌上电脑)calculatorabacuslaptopStep1 Revise and lead in Period 2 Reading:Who
12、am I?Learning aims To learn some useful words and expressions To learn the development of computers and Internet.To develop our skimming and scanning reading skills.Step2 Words and Phrases solve from on reality as a result totaltotally so that explore anyhow goal human race 如此如此.以致于以致于v.探索；探测；探究探索；探
13、测；探究adv.无论如何，即便如此无论如何，即便如此n.目标目标人类人类v.解决；解答解决；解答从从.时起时起n.真实；事实；现实真实；事实；现实结果结果adj.总的；整个的总的；整个的 n.总数总数Adv.总的；整个的总的；整个的 n.总数总数Useful phrases1.calculating machine2.simplify difficult sums3.analytical machine4.card with hole5.was programmed by an operator6.technological revolution7.universal machine8.art
14、ificial intelligence9.go by10.new applications11.a devoted friend计算机器计算机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（时间）流逝；走过，过去时间）流逝；走过，过去;简化难的算术题简化难的算术题 被一个操作员设计程序被一个操作员设计程序新的应用新的应用 一个忠实的朋友一个忠实的朋友Calculating machineComputerInternetAnalytical machineArtificial intelligenceUniversal machineThe devel
15、opment of computers and Internet:The development of computers:Calculating machineAnalytical machineArtificial intelligenceUniversal machineComputerInternetStep3 Skimming:Go over the story to find out who the speaker is.Write down 3 sentences to support your idea.It is a computer.I was able to share
16、my knowledge with others through the World Wide Web.”My real father was Alan Turing.”I was built as an Analytical Machine by Charles Babbage.”First as a PC and then as a laptop.Skim and answer these questions.1.Who was the first person to invent the earliest computer?2 Who was the next important per
17、son to design computers?Charles BabbageAlan TuringSkim the passage again and find the topic sentence(中心句）中心句）in each paragraph.(一般一般在句首，有时句中或句末）在句首，有时句中或句末）Paragraph 1 Paragraph 2Paragraph 3Topic sentenceStep4 Scanning(Para1,2)1.Where were you in 1642?2.What happened to you after nearlytwo hundred y
18、ears?I was built as an Analytical Machine by Babbage.3.What were you called in 1936?A universal machine.4.What makes you totally change the size last?In France.Small chips.Step4 Scanning(para.3)5.What happened to you in the 1970s?I have been used in offices and homes and new applications.6.What new
19、applications have been found for you?In communication,finance,trade,robots,mobile phones,operations,space,etc.In 1642The computer began as a(n)1._ machine in France.About 200 years later(1822)The computer was built as a(n)2._ machineThe computer was programmed by an operator using 3._.In 1936A book
20、about how to make a computer a(n)4.“_”was written by Alan Turing.From then on,the computer grew rapidly.calculatinganalyticalcards with holesuniversal machineFrom the 1940s to the 1970s The computer was made smaller,and its 5._became better.The computer could memorize all the things During that time
21、,the first PC and the first 6._ were made.In 7_Computer were connected by a 8._.Through the network,people could 9._knowledge and information.Since the 1970sComputers have been used in many 10._.memorylaptopthe early 1960ssharenetworkapplications,homes and offices Homework:1.Revise and remember the
22、words about computers.2.Read the passage again and do exercise 1 and 2 on the Page19 of the text book.TimelineThe computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.The computer had grown as large as a room.1960sComputers were used in offices and homes an
23、d new applications.Computers connect people all over the world together.1642:_1822:The Analytical Machine was made by Charles Babbage.1936:_ _1940s:_:The first family of computers was connected to each other.1970s:_ _Now:_ _ScanningThanks for your listening！Step5 Summary about the text.Do the exerci
24、se 2 on page 27 of the Best design.Summary about the text.The computer _ a calculating machine in 1642,then in 1822,it was built as an _ by _.At the year of 1936,Alan Turing _ to describe how computers _to work and build as a“universal machine”to solve _.With the development of information technolog
25、ybegan asAnalytical MachineCharles Babbagewrote a bookcould be mademathematical problem in the 1960s,computers had new _and became_,then were connected to each other by_.As the years had _,computers were_,peoples homes.Now computers have become the most important _to _all over the world together.tra
26、nsistorssmaller and smallera networkgone bybrought into toolsconnect peopleRead the passage and choose the best answers.1.What can we learn from the text?A Computer has a short history.B No one knows computer when the first computer was made.C Computers are not widely used even today.D Computers are
27、 widely used.2.Who was the computers real father?A Alan Turning B Not mentioned in the text.C Bill Gates D Charles Babbage3.The computer almost changed completely _.A in 1642 B in 1882 C in the 1960s D in the 1970s.DAC4.When were the computers connected firstly?A In the 1970s B In the early 1960s C
28、In 1936 D In 18225.Which of the following statements is not right?A Computer has a long history.B Computer has changed greatly since it was first made.C Computers are widely used now.D Computer was brought into peoples home in the 1960s.BDParagraph 1Paragraph 2Topic sentenceSupporting detailsParagra
29、ph 3Topic sentenceSupporting detailsTrue or False1.Alan Turing built an Analytical Machine to solve any mathematical problems.2.People began to realize that the computer got cleverer and quicker with time passing.3.The computer began to serve the human race since it was brought into peoples homes.4.
30、Since the 1970s,the computer was used by people around the world through the Internet.5.The larger the computer is,the more memory it has.FTFTFIntensive reading:Underline the phrases&sentences that you think are importantSummary:what have we learned?1.some words about computers.2 the development of
31、computers3 some scientists relating to computers.HomeworkRecite Para one 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-minded In 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 ai
32、mlessly.Wonder v.感到好奇n 奇观I wonder who he is.Learning about languageEX.11 totally2 revolution3 Artificial intelligence4 birth5 simple-minded6 go by7 deal with8 network9 truly10 anywayEX.2revolutionnetworkwent bytotallytrulysimple-mindedAnywaydeal withDiscovering useful structuresAs the years have gon
33、e by,I have been made smaller and smaller.my family and I have been used by billions of people to deal with Information-I have truly been built to serve the human race-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
34、have been told the sports meet might be put off.The price has been brought down._ 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 take
35、n place,were set up The road has been repaired.道路已经修好了。这本书已被译成英语。This book has been translated into English.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.has been saved has
36、been collectedhas been explored 5.They say that some icebergs in the Far South _(pull)to Kuwait for drinking purposes in the future.6.These questions _ (discuss)at the next meeting.will be pulled will be discussed 1 I know Mr.Brown;we_ to each other at an international conference.A are introduced B
37、have been introducedC were introduced D had been introduced2 Have you ever_ to the exhibition 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 t
38、hat kind of cloth because I _ the cloth _ well.A have told;washed B have been told;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 com
39、pleted6 The bridge_ away by floods and the fields_ by water.A had been washed;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 It has been de
40、cidedHow long ago was this book bought?Using structures It has been reported that children 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 lat
41、est computer science course book will be offered to us.I have been told by Peter 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 a
42、nd students.2 The needs of the teachers and students have been greatly considered.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.
