2.(　　 ) A. twenty-first 　 B. twenties　 C. twelfth 　　 D. twentieth

1.(　　 ) A. inventions 　　 B. discoveries C. robots 　　　　　　　 D. inventors

10.(　 ) I don’t know how to use the new machine_________ .

A.　　 works B. to work C. working D. work

综合创新

VI完形填空

The computer plays an important part in our everyday life. It is one of the great __1__ in the world in the __2__ century. It works for us not only at home, in the offices, in big shops, __3__ at schools. Today it is used __4__ many ways. It really __5__ the world large wealth (财富) and happiness.

The first computer in the world was __6__ Enid. It was built in America in 1946. It was __7__ and heavy. __8__ it was born, it has been developing very fast. Until now it has gone __9__ four periods(时期，阶段)and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more __10__.

The computer can do most of the things __11__ the people. It can help us to __12__ about the real world more quickly, to learn __13__ we want to learn and to think __14__ ourselves. __15__ a student in the twenty-first century, you must work hard at it.

9.(　 ) Our teacher_____us not to speak loudly in class.

A. talks B. says C. speaks D. tells

8.(　 ) There are two persons. One is a doctor, ________ is a nurse.

A. other B. another C. the other D. others

7.(　 ) I haven’t finished my homework. I can’t play __________.

A. many B. much C. any D. anymore

6.(　 )－Have you finished__________ your homework?

－No, I haven’t.

A. did B. do C. doing D. does

5.(　 ) If it________ tomorrow, we will not go out.

A. raining B. rain C. rains D. will rain

4.(　 ) How many e-mails have you_________ to your pen pals.

A. send B. sent C. sending D. sends

3.(　 ) Please show________ your photos.

A. me B. I C. mine D. my