1. 停止驾驶汽车         2. 关灯         

3. 回收书籍和纸         4. It's hard to do sth.          

5. forget to do sth.          

2. 我们不应当乱丢乱扔。

We                                                 .

1. 帮助他人会使你快乐。

                                   can make you happy.

15. There used to be a lot of tigers.(改为否定句)

 There              to be a lot of tigers.

14. We don't support zoos. They don't have enough money.(用if合并为一句) 

If we        support zoos,they        have enough money.

13. Jim didn't see this film.(改为同义句)

 Jim        never        this film.

12. They built a new zoo in the city last year.(改为被动语态) 

A new zoo              in the city last year.

11. He tries to help me with my English.(改为进行时)

 He              to help me with my English.

(   ) 6. ―The tiger is badly hurt.

―No wonder it can        move.

   A. easily   B. strongly   C. possibly   D. hardly

(   ) 7. ―It's too cold for these homeless people to live outside in such cold weather!

—You are right!The government should        places to live in for them.

   A. support   B. provide   C. keep   D. discover

(   ) 8. ―I'm afraid we don't have        to finish the work.

―Do we have to finish it tonight?

   A. enough money   B. people enough

   C. enough time   D. help enough

(   ) 9. —I feel that animals should live in zoos.

―         . They are not free there and they are only given food once a day.

   A. I think so   B. I agree with you

   C. I disagree with you   D. I hope so

(   ) 10. ―Miss Li is very patient.

―Yes,she is        for teaching the little kids.

   A. afraid   B. suitable

   C. willing   D. able

1. be against doing                   2. be surprised to (find)                   

3. provide sth. for sb.             4. urge. . . to do                   

5. care for