一、将下列句子合并为定语从句。

1. This is the factory. It makes good quality machine._________________________________

2. Do not drink water. It has not been boiled. ___________________________________

3. The news was surprising. He told us the news.____________________________________

4. May I borrow the book? You bought it yesterday.___________________________________

5. He has found the key. He lost the key yesterday.__________________________________

6. The child is my son. The child is crying in front of the shop. ___________________________

7. He is the doctor. He operated on me last year.___________________________________

8. Is he the man? You are waiting for the man._ ________________________________

9. The girl is called Mary. I saw her yesterday. _________________________________

10. The girl is from China. We all think highly of her. _________________________________

11. This is the film star. His name is well known all over the world.

____________________________________________________________________

12.That is the room.. Its door needs painting. __________________________________

13. Tom has a gold watch. Its hands are made of diamond.

______________________________________________________________________

14. Workers built shelters for the survivors. Their homes had been destroyed.

_________________________________________________________________________

15. Workers built shelters for the survivors. The homes of them had been destroyed.

_________________________________________________________________________

16. The house is Tom's. Its door faces south. _____________________________________

17. The house is Tom's. The door of the house faces south.

______________________________________________________________________________

18. The man is a doctor. He lives opposite our house. _______________________________

19. Do you know the man ? He is talking to your teacher.

______________________________________________________________________

20. He is a hero. We are all proud of him._____________________________________

21. This is the most exciting moment. I will never forget it.

________________________________________________________________________

22. Is the book difficult? You read the book this morning.

__________________________________________________________________________

23. The letter is from my uncle. I received it yesterday.____________________________-

24. The teacher saw what happened. He was standing nearby.

_________________________________________________________________________

25. The house is our library. Its door is painted red. _________________________________

26. The student is in the room. His name is Tom.__________________________________

27. I planted some flowers. They don't need much care._____________________________

28. The flood caused great damage to the crops. It hit the village yesterday.

________________________________________________________________________

29. I know the boy. He likes music very much. _________________________________

30. I know the boy. They are chatting with the boy. _____________________________

31. I know the boy. The boy's father is a judge. _________________________________

二、把下面的定语从句拆分成两个句子。

1、This is the professor who taught me chemistry in 1980 .