1. Unit 4 Section A The Computer Is down

2. I Exploring 1.What does the Internet mean to you? 2.How useful are hi-tech products in our daily lives? 3.What would life be like if these hi-tech products had not been invented ?

3. IILanguage Points 1. down: adj. Our computers have been down for a few hours.( not in operation) 2. go about: He is going about with his girlfriend now. ( go around) We must go about our work now. ( perform or do ) 3. allow: The government does not allow smoking in public. ( permit) 4. issue: vt. The government has issued new guidelines on tax reform.( produce) Food will be issued to the hungry people. ( give out) n. She’s not really concerned about this issue. ( a subject to be talked about ) 5. counter: n. One of the bank workers pressed a button behind the counter. ( table )

4. v. Something has to be done to counter the recent rise in crime.( oppose ) adv. She acted counter to her promise. 6. go down with: Many students have gone down with the flu. ( catch an infectious disease) 7. put: vt. I don’t know how to put my ideas into English. ( express something in words) 8. backup: n. A backup pilot / PC backup software 9. doubt: n. I have no doubt that he can fix your tape recorder. I doubt whether I can solve the problem. 10. No ( not )---without We cannot survive without water. They don’t meet without quarrel.

5. 11. receipt: We should ask for a receipt when we pay for what we have bought. 12. proof: n. Do you have any proof to show you are very capable? The police confronted him with proof of his criminal activities. 13. charge: v. How much does the hotel charge for a room? ( ask in payment) The policeman was charged with neglect of duty.( accuse) n. The members in this club can attend any courses, free of charge. 14. fare: n. There’s been an increase in air- fares since then. ( price)

6. 15. spread: v. Because of these devices, ideas and news of events spread quickly all over the world. ( become widely known ) She unfolded a large map and spread it on the table.( open ) n. the spread of civilization / information 16. whilst: conj. What’s been going on whilst I was away? ( while ) He wanted to be a teacher, whilst his parents expected him to be a doctor. 17. kick: v. the kicked the ball into hole.( strike with foot ) n. The football player directed a kick at the goal. 18. Get over. They will find ways to get over the difficulties. He had not completely gotten over his nervousness

7. Section B Cell phones, E-mail and Voice Mail

8. ILanguage Points 1.stroke: v I leaned over to stroke her forehead. 2. contact. n.direct eye contact shows you are listening to the other person. 3. disconnect: v. They were disconnected ever since. 4. advance: n. There have been great advances in information technology in recent years. 5.scan: vt. This software will allow you to scan and keep viruses from entering your network. n. lazar scan scanner: film scanner free on-line virus scanner

9. Ⅳ. Practical Writing

10. Write notes based on the information given. To: Professor Wang From: Wu Jin Time: 上午八点十分, 星期五 message: 今天下午两点去你办公室. 如有变化, 请 ______ Friday Dear Professor Wang, _________________________________________________________ ___ _________________________________________________________ ______ Wu Jin

11. To: Wang Hai From: Chen Bin Message: 我能借您的 用几天吗 ? 请放在我的办公桌上, 谢谢. Dear Wang Hai, ____________________________________________ ___ ____________________________________________ _____ Chen Bin

12. The End