2 . 找出谓语动词和非谓语动词：
1. They went to the park, singing and talking.
2. Having done his homework, he played basket-ball.
3. The problem being discussed is very important.
4. Having been told many times, the naughty boy made the same mistake.
5. Not knowing how to do it, he went to her for help.
6. Not having heard from her son for a long time, the mother worried a great deal.

4 . 指出划线部分在句中充当的成份
1. Whether we’ll go depend on the weather.
2. People’s standards of living are going up steadily.
3. That was how they were defeated.
4. The nursery takes good care of our children.
5. I’ll return the book to you tomorrow.
6. We are sure that we shall succeed.
7. The woman with a baby in her arms is his mother.
8. There are many films that I’d like to see.
9. Have you met the person about whom he was speaking ?
10. I have a lot of work to do.
11. Anyway I won’t stop you from doing it.
12. I said it in fun.
13. We can send a car over to fetch you.
14. She had to work standing up.
15. Seeing this, some comrades became very worried.
16. Much interested, he agreed to give it a try.
17. The bus arrived ten minutes late.
18. We should serve the people heart and soul.
19. Spring coming on, the tree turned green.
20. Some farmers saw something strange in the sky.
21. We think it necessary that everyone should attend the meeting.
22. It’s strange that she doesn’t come today.
23. It was in the library that I come today.
24. He likes drawing at times when he isn’t working.

25. We left in such a hurry that we forgot to lock the door.

6 . 我妈妈把糖放进咖啡里，用勺子把它们混合起来。(mix)
My mother put the sugar into the coffee and ________with a spoon.

7 . It is known to us all that a computer is made up of thousands of different parts. (句型转换)
→It is known to us all that a computer ________thousands of different parts.