1. A man who never gave up Unit 7 Lesson 25

2. taikonaunt(s) launch

3. man-made satellite

4. 1. Here is a box. You can use it to cook many kinds of Delicious food, such as fish, chicken, meat and rice. You xan also use it to make cold dish and food hot in a few minutes. microwave oven

5. 2. This little thing has got numbers from 0 to 9. It is Very small, so you can put it into your pocket. Wherever you go, you can use it to talk to your friends and your families far away. Mobile phone

6. 3. This is a large box. It usually stays in your sitting room, bedroom or office. With the help of it, you can feel warm in winter and cool in summer. It makes you Feel neither hot nor cold in any season. air-conditioner

7. 4. Here is a big box. It’s very hard-working. It can make your clothes clean and your housework easy. With its help you can have more time to relax or to work. washing machine

8. 5. Here is another box with a beautiful glass face. It looks like a TV, but it isn’t a TV. It can work very Fast. It can help you study or work. computer

9. 6. There is a long and large house. It can rum like a Bus on the ground and it can also fly like a bird in the Air. It is very strong. It can take several hundred People to any place in the world. aeroplane; plane

10. Vacuum Cleaner VCD PlayerMP3 Video Camera telephone fridge; refrigerator lap-top

11. Which of these do you think is the most useful invention ? the second most useful invention? the third most useful invention ? Which of these would you most like to own ? Why do you think so?

12. What’s David doing ? What’s wrong with his pen? What does David want to do with his pen ? What does Tina think of his idea ? What does David say? What’s Tina’s question ? What do they plan to do ? What kind of people Thomas Edison said he liked ?