1. Check the homework She is __________________ （非常漂亮的姑娘） that all the boys of our class like her. There is _____ little water that you can’t drink. So heavy ____________ （这块石头） that nobody can carry it. Don’t lie in the sun for too long. The little girl never lies to anyone. He felt tired, so he went and lay down for a rest. The hen never lays eggs in hot summer. so beautiful a girl so is the stone

2. Pre-reading 1. gravity 2. pull 3. lessen 4. cheer up 5. float 6. explore 7. 体重 8. break out 9. exhausting 1 重力 2 拉（力）；拖 3 减少，减轻 4 感到高兴 5 漂浮 6 探险 7 8. 爆发，突发 9 令人精疲力竭的

3. Scanning : fast reading Read the text quickly and find out its main idea. First, read the 1st paragraph. Then, read the topic sentences of each of the following paragraphs to find out the key words. The writer tells us that he and his friend paid a visit to the moon. Para. 1 Para.2 Para.3 Para.4 We visited the moon in our spaceship last month. The force of gravity changed three times on our journey. I explored the moon. Returning to the earth was very frightening.

4. Skimming: read parts of the text Read the text again and learn more about the changes of gravity. 1. When did the three changes of gravity happen? 2. How did the gravity change? 3. How did the writer’s weight change?

5. Skimming: read parts of the text WhenGravity Weight Leaving the earth In space Closer to the moon/ on the moon The most powerful / very hard No / zero gravity Not strong / very light Normal No / weightless weighs less than on earth

6. As gravity changes, people’s _______also changes. If a person weighs 90 kg on the earth, then in space he /she will weigh _____ A.90 kg B. 0 kg C. 100 kg and on the moon he /she will weigh____ A. 90 kg B. 0 kg C. about 15 kg weight

7. Judge the following statements are T or F 1. Li Yanping is an expert ( 专家） in physics. 2. The spaceship didn’t fall back to the earth because it was too far from the earth to feel its pull 3.They could float in the spaceship when getting closer to the moon. 4.Walking on the moon was slower than walking on the earth. 5. Their journey back to the earth was very relaxing. 6. Nothing happened to the spaceship when it returned to the earth. Fastronomy T T F faster F frightening F Fire broke out on the outside of the spaceship

8. Language Study I. rewrite the following sentences 1. I was lucky enough to have a chance to make a trip into space. I was so lucky that I had a chance to make a trip into space. 2. We are too far from the earth now to feel its pull. We are so far from the earth now that we can’t feel its pull. 3. It was so hard that we could not say anything to each other. It was too hard for us to say anything to each other.

9. II. Fill in the blanks 1. Before we left, he ________ to me that the ________ of gravity would change three times on our journey and _____ the first change would be the most _______. 2. We were ______ back into our seats because we were trying to ______ the ______ of the earth’s gravity. 3. I ___________ immediately and floated _______ around in our spaceship cabin _______ the earth ________ smaller and the moon larger. 4. I laughed and climbed down the ______ from the spaceship. But when I tried to _______ forward, I found I was carried _______ as far as on the earth. explained force that powerful pushed escape pull cheered up weightlessly watching become steps step twice

10. III. Explain the underlined parts 1. Gradually the weight lessened and I was able to talk to him. 2. After a while I got the hang of it and we began to enjoy ourselves. 3. That was very exhausting but very exciting too. Slowly / step by step became less mastered had a good time extremely tired

11. IV. Correct the mistakes 1. We shall feel its gravity to pull us, but it will not be as a strong pull as the earth’s. 2. Walk does need a bit of practice that gravity has changed. 3. Leave the moon’s gravity was not as pain as leaving the earth. 4. But return to the earth were very frightened. 5. We watched, was amazed as fire broke in on the outside of the spaceship. 6. Now I knew much more about gravity ！ 7. Do you think we could visit some stars the next time? pulling strong a pull Walking now that Leaving painful earth’s. returning was frightening. out know

12. Homework Noun clauses; As