5.　　　 你可以给你的老师发邮件

4.　　　 光的速度比声音快得多.

　Light travels ______________________________________sound.

3.　　　 你是怎样把它打印出来的?

　How _______________________________________________?

2.　　　 我们的老师能够在电脑上批阅我们的家庭作业.

　Our teacher _________________________________________.

1.　　　 键盘是用来打字的.

　The keyboard _______________________________________.

5.(　 ) A hard disk is used for ____________information.

　　 A. designing　 B. producing　 C. storing(储存)　 D. receiving

4.(　 )The TV is too noisy. Can you turn it _______ a little?

　 A.up　　　 B.on　　　 C.down　　　 D.off

3.(　 )The computer game _____ well and ______out very soon.

　　 A. sells; is sold　 B. sells; sells　 C. is sold, sells　 D. is sold; is sold

2.(　 )We can use the cursor(光标) _____ the screen _____ the mouse.

　　 A. in; by　　 B. on ;by　　 C. around; with　　 D. around; in

1.(　 )The icon is double clicked, but it still _______

　　 A. works　　 B. doesn’t work　　 C. turns on　　 D. appears