1. Unit18

2. All in the mind: Scientific Metaphors What do you do with your computer?

3. typewriter video game player

4. drawing board projector

5. sending e-mails shopping

6. listening to musicwatching movies

7. What do we use the internet for? sending Emails a TV set a telephone a radio a library reading news

8. What do we use cellphones for? watching videos taking photos

9. finding destinations watch/calendar/alarm clock

10. MP3 sending messages

11. Skimming A time of new discoveries and great changes. What is the “information age”?

12. Careful-reading 1. Why does the author say that we are not really in the “information age”? 2. Why are scientific metaphors like “memory” and “cut and paste” useful? Read the passage carefully and answer the following questions:

13. 1. Why does the author say that we are not really in the “information age”? Except the tools we use, many of the things we do with computers are things that we also did before.

14. 2. Why are scientific metaphors like “memory” and “cut and paste” useful? They make it easier for us to understand and use a new tool.

15. 3. Besides words like “memory”, “store” and “cut and paste”, think of more words we use to talk about computers and Internet. Words like: copy, file, delete, enter, return, store, control, alter, shift, escape, table, capital locked, insert, page up, page down, home, end etc.

16. Answer the questions on page 63. 1.Why are scientific metaphors like “memory” and “cut and paste” useful? How may they limit our thinking? Because they help us understand and use the technology. They may limit our thinking by keeping us from using the new technology in new ways.

17. New technology is often used in old ways. Complete the chart below. Technology Usage used as a typewriter/tape recorder/VCD player notebook/calendar telephone/calculator The InternetUsed as a library/magazine TV/telephone/bank/store Computer

18. Some useful sentences for you to follow.

19. It is certainly true that computers … It is certainly true that anyone of us may become an inventor if we try using some of the thinking strategies of the great and famous.. …… 是无疑的。 如果我们试着采用伟人和名人所 用过的那些思维策略， 那么任何人都有可能成为发明家，这是无疑的。 it 是形式主语，引导主语从句， 真正的主语是 that 引导的主语从句。例如：

20. We are said to be living in the “Information Age”, a time of new discoveries and great changes. 人们都说我们生活在 “ 信息时代 ”, 一个充满新发明和 大变革的时代. ① a time of … 是 the “Information Age” 的同位语 ② sb. be said to be doing/ to have done sth. He is said to have been allowed into Peking University. It is said that we are living in the …. It is said that he has been allowed…..

21. After all, what makes a new invention such a wonderful thing is that it allows us to do something we could not do before. 不管怎样，使一项新发明成为如此奇妙的事情 就在于它可以让我们做以前不能做的事情。 what… 引导的是主语从句， that… 引导的是表语从句。例如 :

22. Why are our respected scientists so productive is that they produce not only some of the best ideas but also a great many bad ones.

23. Now that we are developing new technology at such a high pace, the … Now that you mentioned it, I’d like to discuss with you. 既然你提到这件事， 我想和你讨论一下。 now that 既然, 由于, at a high pace 快速的 The electronic industry is developing at a high pace. 电子工业在高速的发展。

24. Has our life changed that much?... that: so “ 那么 ” ，在口语中程度副词可以 由 so 来代替。 I can’t walk that far. Why do you keep me waiting that long?

25. The real function will only be known once we discover… Once you understand this rule,you will have no further difficulty. 一旦明白了这条规则， 就再也没有困难了。 Once ：连词 ，一旦，常用来引导条件状语从句。 Once you have made a great decision, you should carry it out. 一旦你做出重大决定，就要好好实施。