22.What is a printing machine used for?

　　　 A.It's used for washing clothes.

　　　 B.It's used for printing books, magazines ,newspapers and many other things.

　　　 C.It's used for writing books.　　 　　　　　　D.It's used for travelling.

21.Why are machines so important and necessary to us?

A.　　　 They can help us do things more quickly.　 B.They can do more things than people.　

　C.they are cheap and useful.　　 D.They are beautiful and expensive.

20.When did Bruce come to China?

　　 A.Four years ago.　　 B.Two years ago.　　 C.Three years ago.　 D.In 2001.

19.Where are they?

　　 A.In a museum.　　 B.In a shop.　　　　 C.In a cinema.　　　 D. In a street market.

18.How does Jim usually come to school?

　　 A. By bus. 　　　　　B. By bike.　　　　 C. On foot.　　　　 D.By motorbike.

17.What are they doing?

　　 A.They are having a meeting.　　　　　　　 B.They are making a telephone call.

　　 C.They are talking at home.　　　　　　　　 D.They are talking at school.

16.What time is it now?

　　 A.8:00　　　　　　　 B.8:10　　　　　　　　 C.8:30　　　　 　　　　D.8:50

15.A.There are no photos here.　　　　　　　　　 B.We have no photos here.

　　 C.You can't see photos here.　　　　　　　　　 D.You　 mustn't take photos here.

14. A.We should plant more than 20 trees. B.Over 20 trees should be planted.

　　　 C.We have another 20 trees to plant.　　 C.More than 20 trees have been planted.

13.A.The trees in the forests can make rain drops not hit the soil directly.

　　 B.The trees in the forests can make rain drops hit the soil directly.

　　 C.Rain drops can be made to hit the soil directly.

　　 D.Rain drops can not be made to hit the soil directly.