2. Unit 4 Amazing Science Topic 1 Topic 1 Spaceships are mainly controlled by computers. 哈尔滨市阿城区杨树民主学校 冯玉梅 李培良

3. 神六飞行纪录片 The spaceship is mainly controlled by computers. （影片）

4. There is no doubt that we will be successful. I don't doubt that they will be able to solve the problems. doubt n. & v. 怀疑，不信；拿不准 2.doubt (vt.)+ 从句 3.doubt (vi.)+ about / of Doubt is the key to knowledge. There is no reason to doubt of his honesty. I doubt whether/if he'll change his mind. 1.doubt (n.)

5. tiny very small in size a tiny girl connect v. 连接 connection n. 关系，联系 1.connect A with B 使 A 与 B 连接 2.connect sth. (to sth.) 使电、气、水等接通 3.connect sb./sth. (with sb./sth.) 与 …… 有联系，把 …… 联系起来 64 尺 超大型（ Huge ） 32 尺 大型（ Large ） 16 尺 中型（ Medium ） 8 尺 小型（ Small ） 4 尺 超小型（ Tiny ）

6. 1. spend… (in) doing sth. 2. spend… on sth. pay (money) for… It takes sb. some time to do sth. sth. cost(s) sb. money

7. Computers help astronauts control the speed and direction of a spaceship’s flight. Robots controlled by computers can do work that is dangerous to humans.

8. This picture shows us that doctors can find diseases easily with the help of computers.

9. Computers are also used in business to place and cancel orders. 1.Is it too late to cancel my order? 2.How can I cancel my account?

10. 听 P81-1a 的录音, 感知文章大意。录音

11. 再听, 讨论重点句 Listen again, discuss these key sentences. 1.There is no doubt that computers are very useful in technology and business. 2.Tiny computers inside patients’bodies keep their hearts beating normally. 3.They have made the workplace safer and better. 4.They use them to play games and watch movies. （录音）

12. Read 1a again,then fill out the table below. PlaceThe usage of computers In space In hospitals In factories At home control the speed and direction find diseases easily and solve other problems do dangerous work paly games, watch movies （影片）

13. Retell the text according to the table.

14. computers Areas of work and leisure in technology in business in space in hospitals in factories in a workplace astronautscontrol the speed and direction find diseases easily solve other problems doctors robotsdo dangerous work businessmenplace and cancel orders workers be safer

15. at home play games watch movies do shopping do business send e-mails chat online get headaches or sore eyes no time to study well or get enough exercise something is not true or good for us members of families

16. Talk about the advantages of the computer in groups.

18. Talk about the disadvantages of the computer.

19. List the advantages and disadvantages of the computer. advantages disadvantages

20. 小组讨论： Group discussion 每组派一名代表汇报。 1. Underline the topic sentence of each paragraph. 找出每段的中心句。 2. Choose the best title for this passage. 给文章选一个好题目。 A. The Importance of Computers B. How to Use Computers C. Disadvantages of Computers

21. 1.p_________ 2.t__________ 3.c__________ 4.d__________ 5.c__________ a. one’s own b. very small in size c. to join together two or more things d. a feeling of being uncertain about something or not believing something e. to exchange information,news, ideas, etc. with other people ersonal iny onnect oubt ommunicate Complete the following words according to their first letters and meanings.

22. 根据宾语补足语完成连接。 f a c b d e 1.Tiny computers inside patients’ bodies keep their hearts 2.Computers have made the workplace 3.Computers have made the world 4.Mr.Lee expected Kangkang 5.Kangkang asked Mr.Lee 6.Mr.Lee told us a. safer and better b. to study harder c. smaller, like a “village” d. how to master computers e. not to spend too much time playing games f. beating normally

23. 1. Her rich experience gave her an ___________ over other applicants （申请人） for the job. 2. If you put very _______ things under a microscope( 显微镜 ) ， you will find it very large. 3. Computers have __________( 连接 ) the whole world to be one “small village”. 4. For __________________( 例如 ) ， if we don’t take enough exercise, we’ll be weak. 5. I_________( 取消 ) the reservation for the ticket to New York yesterday. tiny connected instance/example cancelld advantage

24. 1. 了解电脑的用途及利弊。 2. 学习宾语补足语的用法。

25. Write an essay about the computer uses.

26. Let’s relax together ! （录音）