2.  Related Information Related Information Related Information  Practical Writing Practical Writing Practical Writing  Check Yourself Check Yourself Check Yourself  Fun Time Fun Time Fun Time

3. BOOK4 Unit4 I. Related Information WWW: the World Wide Web CDMA: Code Division Multiple Access Network Website 万维网 码分多址 网络 网站 1. Useful Expressions

4. BOOK4 Unit4 the Information Age Information expressway Information superhighway 信息时代 信息高速公路

5. BOOK4 Unit4 2. Telecommunications and Two Trends Telecommunications, from Greek, means “communications at a distance”. The first trend : the incredible increase in the processing power of digital computers, namely, dramatic decreases in physical size, dramatic increases in complexity, speed and capacity. The second trend: the explosive growth in transmission capacity through the widespread use of optical fiber across continents and under oceans.

6. BOOK4 Unit4 The Information Age is an era of fundamental and global change in intellectual, philosophical, cultural and social terms. 3. Information Age Today’s Information Age began with the telegraph. New techniques of encoding and distributing digital information are pacing the spread of the Information Age throughout society.

7. BOOK4 Unit4 1976 Gore began his political career in the House of Representatives as a congressman from Tennessee. During this term, he introduced a bill calling for the construction of a “data highway”. 1986 Senator Gore sponsored the Supercomputer Network Study Act, a project which called for a mapping of the information needs of the general public onto the existing networks run by various universities, corporate research facilities, and military technology centers. Al Gore 4. Information Superhighway

8. BOOK4 Unit4 Ⅱ. Practical Writing How to write an advertisement? The one trick to write an advertisement is brevity. The more words or lines you have, the more you pay. You certainly don’t want to pay a lot of money for your ad., so write smartly and briefly. Use commonly accepted abbreviations. Try to include more information in fewer words.

9. BOOK4 Unit4 For Sale 2004 Giant Bike 80% New $180 or best Offer Call: 486-123456 IBM Computer Good Condition Runs exe. $2000 Call Ali, 470-4321 A Sample

10. BOOK4 Unit4 Your Task Product: Sony NW-MS11 Digital Music Player Title: Connect to Play and Connect to Music Features: Able to transfer Internet downloads and recordings from CDs; removable 128MB memory stick that stores 240 minutes of music; rechargeable battery to support 10 hours listening Write an advertisement with the help of the information given.

11. BOOK4 Unit4 1. Have you ever seen John? I’m ______ to meet him. A. despair B. thirsty C. desperate D. desire 2. The police took a new ________ for crowd control. A. strategy B. plan C. way D. procedure III. Check Yourself

12. BOOK4 Unit4 3. Can you help me _______ on to the computer system? A. get B. log C. step D. go 4. They argued that their products should be developed on the basis of need, ______profit. A. rather than B. other than C. more than D. less than

13. BOOK4 Unit4 5. Prices are going up so rapidly. ______ A.Petrol now is twice as expensive as it was a few years ago. B.Petrol now is as twice expensive as it was a few years ago. C.Petrol now is as expensive as twice it was a few years ago. D.Petrol now is expensive as twice as it was a few years ago.

14. BOOK4 Unit4 6. She _____ all her efforts in passing the final exam. A. made B. put C. used D. invested 7. Mum is getting old, so her memory is not very ______ these days. A. true B. forgettable C. reliable D. credit

15. BOOK4 Unit4 8. The safe ___of nuclear waste is a major problem. A. proposal B. throw C. abandon D. disposal 9. Fog will ______ throughout the night. A. stay B. keep C. persist D. retain

16. BOOK4 Unit4 10. Many people lost their job because of the industrial _______. A. boom B. failure C. reduction D. recession

17. BOOK4 Unit4 Flying Birds Flying Birds

18. BOOK4 Unit4 Enjoy the video and think about the following question: Enjoy the video and think about the following question: How would you like to describe your feelings when surfing on Internet, or being on the Information Superhighway? I would say like flying birds, would you agree?

19. BOOK4 Unit4 Flying Birds