导学案Unit3Computers

1、Unit 3 Computers 导学案ReadingBy Jin LidanStep1. Enjoy a videoEnjoy a video about the dance of robots.Step2. Play a game1. What is the full name of PC? 2. What is IT?3. What is W.W.W?4. A riddle （谜语 ）It was born in China. Many people used it for calculating in the past. It has a wooden frame （框架）with b

2、eads.5. What is PDA?6. A riddle（谜语）It is a machine that works automatically. It can do a lot of tasks but doesn 't feel tired, especially suitable for doing jobs too boring, difficult,or dangerous for human beings.Step3.Learning tips阅读FGG原则：Find Guess Get 找到 猜到 得到1. Find the topic sentence.找中心句）

3、2. Guess the meaning of the words.（1）According to the root of the word 根据词根猜词义（2）Accordi ng to the con text根据上下文猜测词义 把握文章细节与基调， 阅读理解胜利在握！Step4:Skimming1. What 's the main idea of this passage_?A. The development of computersB. The development and use of computersC. A machine which is simple-mind

4、edD. Computers may replace human beings2. What is the writi ng order of thispassage?A. fun ctio nB. SizeC. time3. Match the main ideas and the paragraphs.Para 1:These cha nges only became possible as my memoryimproved.Para 2:Since the 1970s many new applicati ons have bee n foundfor me.Para 3:Over t

5、ime I have bee n cha nged quite a lot.Step5 .ScanningI. Read paragraph 1(1) Fill in the bla nks.Developme ntEarly daysNameFun cti onpoor stro ngA mach ineSimplify difficult sumsAnThi nk logically and produce an an swer quicklymach ineASolve difficult mathematical problemmach ine(2)Whe n was the comp

6、uter the biggest?A. In 1642.B. In 1936.C. In the 1940s.D. In the 1970s.2. Read paragraph 2(1) Why did the computer totally cha nge its shape?A. Because the computer could do many thin gs.B. Because the computer could simplify sums.C. Because its memory improved.D. Because the computer n ever forgot

7、any thi ng.(2) Whe n were the computers conn ected to one ano ther?A.In the early 1960s. B.In the 1970s. C. In the 1940s. D. In the year of 1936.3. Read paragraph 3.According to the last paragraph, which were not mentioned in the use of the computer?A. Mobile pho nesB. Rockets C. Bikes D. RobotsStep

8、6 .ExerciseSummary of the text.I bega n as a calculati ng mach ine in 1642. When I was youn g, I was good at(simplify)difficult sums. It took n early 2 hun dred years before I could think(logical)and produce (quick)answers than any person. At that time, I was called a(tech no logy) revoluti on. In 1

9、936, I (build)as a uni versal mach ine.From the n on, I grew(rapid) both in size and brain power. In the 1960s, I havea family (connect) by a network . From then on, I was able to share mykno wledge others through the WWW.After that, I had many new(application). Now, I am a(devote)frie nd of the hum

10、a n race.Step7 Competition and compositio(选做)1. Competiti on :What are the adva ntages and disadva ntages of computers? Who give more examples will be the winner!2. Composition 基础写作随着时间的推移，电脑已经成为现代化生活的一部分。我们可以利用网络申请工作，收发信 息，买卖商品等。从某种意义上说，网络改变了我们传统的生活方式。但是，网络的使用中也出现了很多问题。家长应该以某种方式阻止孩子玩儿网络游戏，以防孩 子上瘾。不

11、管怎样，它的优点还是多于不足。我认为，只有我们正确利用好网络这个工具，我们的生活 才能越来越好。As time goes by (随着时间流逝) ，people now have easy access to the In ternet which plays an increasingly imporant role in our daily life. In a way (在某种程度上) ，it has cha nged our traditi on al life style, because we can do a number of thi ngs on the Internet n

12、ow, such as (例如) applying for jobs, sending and getting information as well as (和) selli ng and buying items.However(然而)，problems also arise when we use the Internet. Parents should keep their children from playing computer games somehow (不管以什么方式) because they are likely to be addicted to it.Any way, the adva ntages of the Internet