2. It is very important to learn Math well. We shouldnt ignore the value of knowledge. It is worthwhile to help others. We should try our best to beautify ones environment. Pollution is harmful to our health. People know that smoking has a great influence on our health. I admire your talent, but I dont like the way you treat your mother. In my opinion, everyone has the right to be educated. I like surfing the Internet best. Tom should be responsible for the accident. The noise is going on, and I cant concentrate on my studies. The living conditions in the countryside is not satisfying.

3. (simple sentence) (compound sentence) (complex sentence)

4. 1. + + 2. + + 3. + + 4. + + + 5. + + +

5. + I live in Beijing. The sun rises.

6. + (vt.) + I have a radio. The teacher decided to hold a class meeting.

7. + + + (sb) (sth) He paid me a visit yesterday. He wrote his family a letter yesterday.

8. + + + The guard ordered him to show his pass. We called him Uncle Li.

9. : : : and, both…and, not only… but also, neither…nor but, while, so or, either…or

10. . 1. She doesnt like sports. She cares nothing for sports. 2. A new railway is being built in my hometown. A new railway is under construction in my hometown.

11. . 1.I like reading while my brother likes watching Tv I like reading while my brother enjoys watching Tv 2.We have built a new classroom building besides the old one and we have also built a library where the old one used to be. We have built a new classroom building besides the old one and we have also put up a library where the old one used to be

12. 3. This painting is very valuable. 4. Our hometown has changed a lot these years. This painting is of great value. Great changes have taken place in my hometown these years.

13. . 1.There is a new classroom building on one side of the road.There used to be a play rgound on the otherside before.But there is a library now. There are all kinds of books,newspapers, and magazines in the library. 1. On one side of the road there is a new classroom. On the other side,where the playground uesd to be,now stands another new building- our library,in whichyou can all kinds of books,newspapers, and magazines.

14. . 1.The meal was very nice.We all enjoyed it very much. The meal was so nice that we all enjoyed it very much. 2. I studied Chinese,maths,physics, chemistry,English and computer at school. The main subjects I studied at school included Chinese,maths,physics, chemistry,English and computer.

15. 3. The girl is spoken highly of. Her composition was well written. The girl whose composition was well written is spoken highly of.

16. . 1.The young man pointed to a policeman not far away and said, He stopped us an hour ago and told us to catch another offender. Pointing to a policeman not far away, the young man explained:He stopped us an hour ago and told us to catch another offender.

17. 1.We had a short rest. Then we began to play happily. We danced and sang.Some told stories. Some played chess. After a short rest. We had great fun dancing and singing,telling jokes and playing chess. 2.My brother was riding a bike and I sat on the seat behind him. My brother was riding a bike with me sitting on the seat behind him.

18. . 1.My pratents praised the dog warmly. It saved my little sister bravely. My pratents praised the dog warmly. It was our brave dog that had saved my little sister. 2.The head of the farm showed us around. We were glad to see the crops and vegetables growing very well. The head of the farm showed us around. How glad We were to see the crops and vegetables growing very well!

19. 3.Though I'm weak I will make the effort. 4.They will never give up the struggle for success Weak as I am, I will make the effort. Never will they give up the struggle for success. 5. We can achieve our goals by working hard. Only by working hard can we achieve our goals.

20. : People suggested that the meeting be put off. We should take measures to make our country rich and strong. It is suggested that the meeting be put off. Steps must be taken to make our country rich and strong.