Unit 3 Computers

1. Unit 3 Computers

2. Match the words with their meanings. 1 A monitor is 2 The screen is 3 A keyboard is 4 A mouse is 5 A CD-ROM is 6 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 separate disk that contains lots of information.

3. Guess more: 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 don’t like me now. Do you know who I am? abacus

4. I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am? calculator

5. 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 a PC, because I’m small enough for you to take me with you. Do you know who I am? notebook computer

6. A huge computer A PC the history of the computer Palmtop

7. Who am I ?

8. II. Pre-reading Work in pairs. Try to put these inventions in an order according to the time when they appeared. Then read the passage quickly and check to see if you were right. ( ) analytical machine ( ) laptop ( ) calculating machine ( ) robot ( ) PC ( ) universal machine 2 5 1 6 4 3

9. Comprehending: 1.Choose the best answers 1) What’s the main idea of the text? A. The computer wants to find “who he is”. B. The functional change of the computer. C. The computer becomes popular around the world. D. The history of the computer.

10. True or False • Alan Turing built an Analytical Machine to solve any mathematical problems. • People began to realize that the computer got cleverer and smaller with time passing. • The computer began to communicate among the human race since it was brought into people’s homes. • 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. F T F T F

11. Comprehending: 2) What can you infer from the text? A. The computer has artificial intelligence. B. The computer changes a lot over the years. C. The computer was not connected by a network until in the early 1960s. D. Now the computer can only be used to deal with information.

12. While-reading: Let’s listen to the tape and pay attention to the timeline.

13. Timeline The computer began as a calculating machine 1642:_____________________________________ 1822:The Analytical Machine was made by Charles Babbage. _____: _______________________________________ __________________ 1940s: _______________________________________ _____:The first family of computers was connected to each other. 1970s:_____________________________________ Now:________________________________________ ___________________________ 1936 The computer grew rapidly both in size and in brainpower. The computer had grown as large as a room. 1960s Computers were used in offices and homes Computers connect people all over the world together.

14. These changes only became possible as my memory improved. Since the 1970s many new applications have been found for me. Over time I have been changed quite a lot. • calculating machine • analytical machine • universal machine • PC • laptop • communications • finance • trade • robots • mobile phones • medical operations • space rockets • providing a life of high • quality • tubes • transistors • chips • network • World Wide Web

15. While-reading • Summary • A topic sentence sets out the main idea of a paragraph. • A topic sentence is usually the first or last sentence of a paragraph.

16. 计算器 分析机 通用机器 个人电脑 手提电脑 A calculating machine An analytical machine A Universal machine PC laptop Paragraph1 Careful reading: Find out the topic sentence of each paragraph and its supporting details. Over timeI have been changed quite a lot.

17. 电子管 晶体管 芯片 网络 万维网 Tubes Transistors Chips Network World Wide Web Paragraph 2 These changes only became possible as my memory improved.

18. Fill in the blanks with the new words. • A calculating machine could s________difficult s_____. • An analytical machine could think l________after it was • p____________by an o_________. It was considered a • t__________ r____________and the start of it’s a________ • i___________. • 3.A universal machine could s______any difficult m________ • problem. • 4._____then ___I worked hard to get into university. • 5.His hope has become a r__________. • 6. PC stands for p________computer. • 7.Computers’ memory was stored in t____, then on t________ • and later on very small c______. As a result the computer • t______changed its shape. implify ums ogically rogrammed perator echnological evolution rtificial ntelligence olve athematical From on eality ersonal ransistors ubes hips otally

19. 8.In the early 1960s, many families were connected by the n________and many people were able to surf the net through the World Wide Web. 9.The computer has many a__________. It becomes important in c___________, f_________and trade. Robots, m________ phones and space r__________all have something to do with computers. A__________, the computer is a great helper of the h_________r________. etwork pplications obile ommunication inance ockets nyhow uman ace

20. 通讯 金融 商业领域 机器人 移动手机 医疗手术 航空火箭 Communication Finance Trade Robots Mobile phones Medical operations Space rockets Paragraph 3 Since the 1970s many new applications have been found for me.

21. Computer Further understanding: 1.Why does the writer use this question: “WHO AM I?” as a title? It seems natural that the passage is written in the first person. Besides, it is able to make readers interested in the topic and easy to accept the facts. 2. Who is the speaker? And what is it like? strong small I am _________in brainpower, _______in size and _______in application. wide

22. Post reading:Discuss in four of high Anyhow, my goal is toprovide humans with a life __ ______ ______. I am now truly filled with_________ that I am a devoted ________ and _______of the human race! quality happiness helper friend How useful computers are!

23. Comprehending Task 1: Go over the story and discuss with your partner who the speaker is in this story. Write down three sentences to support your idea. It is a computer. • I was built as an Analytical machine by Charles Babbage. 2. My real father was Alan Turing, who in 1936 wrote…solve any mathematical problem. 3.However, people thought I was simple-minded until they discovered I had “artificial intelligence”.

24. Homework • 1. Read the passage once again. • 2. Read the new words of Unit 3. • 3. Do Ex. 1 & 2 on page 20.

25. As time went by，I was made smaller. • ①Over time 经过一段时间 • ②随着时间的流逝 • As time goes by… • With time going by… • As 作连词 当..时候,随着

26. ③. go by (1)pass 经过， You have missed the bus; it just went by. (2)时间流逝 ① 时间慢慢过去。 (3)机会丧失 ② 勿失此良机。 Time went by slowly. Don’t let this opportunity go by.

27. begin as 以…开始 同start asas 意为“充当，作为”，后跟表示职业或身分类的名词。 The writer started as a middle school teacher. 这位作家是从做中学教师开始的。 他在这当工程师。 He works here asan engineer.

28. Provide 提供 • provide sbwith sth=provide sth for sb 向某人提供某物 他们给他提供了钱和衣服。 They provide him with money and clothes. They provide money and clothes for him. 拓展：supply sth to sb supply sb with sth 向某人供应某物 offer sth to sb offer sb sth 主动向某人提供某物

30. 在他看来 • 技术革命 • 人工智能 • 处理信息 • 和他的亲戚们沟通 • 为人民服务 • 充分利用时间 • 编排新动作 • 在电脑的帮助下 • 开发更好的系统 in his opinion technological revolution artificial intelligence deal with information communicate with his relative serve the people make full use of the time make up new moves with the help of a computer create a better system

31. in a way win first place improve his intelligence solve/settle big problems design our own robots develop programmes the size of a large room in the early 1870s computer chips take turns to do sth. • 在某种程度上 • 取得第一名 • 提高他的智力 • 解决大问题 • 设计我们自己的机器人 • 开发程序 • 一间大房子那么大 • 19世纪70年代早期 • 电脑芯片 • 轮流做某事

32. 2. follow 3. sound simple 4. solve problems 5. go by 6 more and more 7. anyway ① ____, you can try, even if there is not much chance of success. A. any way B. Anyway D. Certain D. Sure ②Father ran for a doctor; ___ mother stayed with me. A. anyhow B. beside C. in that case D. meanwhile

33. such that so that such that so that 8. so … that / such … that ①It was ______ fine weather ______ they decided to go mountain-climbing. ②There was ______ much rain ______ some villages were flooded. ③She left in _______ a hurry ________ she forgot to lock the door. ④That was ____ difficult a question _______ none of the students could answer it.

34. 9. share with 10 deal with ①Professor Yang is working on a book ______ the war between American and Iraq. A. deal with B. dealt with C. refer to D. dealing with ②---Do you have anything to ___ today? ---Yes, I must have a flight ticket to Beijing _____. A. be seen to; booking B. be seen to ; to be booked C. deal with; booking D. do with; booking

35. 12. at the thought of 13. make up 14. after all We were very tired and walked with difficulty, but we got home ____. A. at all B. after all C. above all D. in all 15 watch over The flowers should be ___, or else they will die in such a cold weather. A. watched over B. watched out C. looked out D. looked over 16.even better

36. I began only as a calculating machine in 1640, in France. • Then in 1822 I was built as an Analytical Machine by Charles Babbage. • As the years have gone by, I have been made smaller and smaller. • 2. But I was always so lonely standing there by myself… • At about the same time we learned to talk to humans using BASIC. • 3. There were times when my size was totally changed.