内容正文:
1. A bus crashed into a tree near my home yesterday.
2. We should take action to save animals in need before it is too late.
3. I think it is necessary to study the changes in birds' numbers.
4. It is incorrect / not right for people to drop litter carelessly.
5. I’d like to stay in bed for ten more minutes because it’s cold outside.
6. What a piece of useful advice the teacher gave me!
7. In order to protect the wild animals in danger, the government made laws to prevent/stop/keep people from cutting down trees.
8. You should keep secrets, otherwise it will make him unhappy/sad.
9. The computers in our classroom are different from those in theirs.
10. The coach crashed into a big tree and three people lost their lives in this traffic accident.
11. The winter is very cold in Beijing and the temperature often drops below zero.
12. While we were having supper, the telephone rang.
13. We must do something to stop farmers from keeping cutting down forests.
14. They were making snowmen while I was drawing yesterday afternoon.
15. If we don't take action, thousands of birds will die.
16. I was making pancakes when the telephone rang.
17. In order not to make any mistakes, she read the instructions carefully.
18. Jack bought a Teddy bear for his son when he walked past the toy shop yesterday.
19. Children couldn’t wait to choose their favourite balloons.
20. Mr Green repaired the chair instead of buying a new one.
21. They decided to get out as quickly as possible.
22. We learnt a lot about how to protect ourselves away from danger.
23. Tom has fewer friends than I.
24. Mum was watching TV while Dad was reading magazines last night.
25. Where there is a will, there is a way.
26. Were the children staying at home when the flood happened?
27. The boy with a square face jumped (the) farthest.
28. If you keep (on) trying, you may remember these words better.
29. Not only I but also my little sister is interested in birdwatching/watching birds.
30. My father has much/a lot m