3. / ’desk,t ɔ p /

4. /’læp,t ɔ p/ /’p ɑ :m,t ɔ p/

6. Read the first part of the passage and complete the table. Topic sentence ComputersSizes First computers Desktops Laptops Palmtops Other kinds

8. Read the first part after the tape and tell whether the following statements are true or false. Read the first part after the tape and tell whether the following statements are true or false. 1. Since the 1940s, computers have become smaller and smaller. 2. Desktop computers are bigger than televisions while laptops are as big as big books. 3. A palmtop computer is as small as a bar of chocolate. 4. You may not know about the other small kinds of computers inside your TV, telephone or washing machine.

9. Read the second part of the passage again and tell whether the following statements are true or false. Read the second part of the passage again and tell whether the following statements are true or false. 1. As we all know, computers are very good calculators. 2. Computers can calculate very fast and never give wrong answers. 3. Computers can type, print, draw things and play games with you. 4. What’s more, they can make railways work and fly aeroplanes and spaceships.

10. How many years ago were the first computers built? How many years ago were the first computers built? What has happened to computers since then? What has happened to computers since then? How big is a desktop/laptop/palmtop? How big is a desktop/laptop/palmtop? Which is the smallest? Which is the smallest? What makes your TV, telephone and washing machine work? What makes your TV, telephone and washing machine work? Why do we call computers electronic brains? Give at least two examples. Why do we call computers electronic brains? Give at least two examples. Read the first and second parts again and answer the following questions. Read the first and second parts again and answer the following questions.

11. Read the first and second parts again and answer the following questions. How many years ago were the first computers built? What has happened to computers since then? About 70 years ago. They have become smaller and smaller.

12. Read the first and second parts again and answer the following questions. How big is a desktop/laptop/palmtop? Which is the smallest? A desktop computer is the size of a television. A laptop computer is the size of a big book. A palmtop computer is the size of a bar of chocalate. A palmtop computer is the smallest.

13. What makes your TV, telephone and washing machine work? What makes your TV, telephone and washing machine work? Why do we call computers electronic brains? Give at least two examples. Why do we call computers electronic brains? Give at least two examples. Computers do. Because they can calculate fast and rarely give wrong answers. (Because they can type, print and draw things……) Read the first and second parts again and answer the following questions.

14. Discuss in groups and say some sentences with the help of the given words and pictures. the first computers the size of built biggerbigger smallersmaller since then

15. the size of palmtop computers other kinds small enough a bar of chocalate tinytiny be unaware of

16. More importantly type, print, draw things operate fast super calculators rarely teach, play games teach, play games wrong answers common knowledge fly

17. A: 1. Read the words and phrases. 2. Read the two parts fluently. B: Write some sentences with the help of some words. Built1940s Smaller and smaller The size of Be unaware of Common knowledge Rarely give wrong answers operate