问题 单项选择题

手提一根不计质量,下端挂有重物的弹簧,竖直向上作加速运动,当手突然停止运动瞬间,物体将( )。

A.立即停止运动

B.向上作加速运动,处于超重状态

C.向上作减速运动,处于失重状态

D.向上作匀速运动

答案

参考答案:B

阅读理解

阅读理解。

     SINA-In order to let people go out more easily during the 2008  Olympic Games,  Beijing is  Going to

start a special bus line and seven more nihgt bus lines. 40% of the taxis will be in service for 24 hours. The subway will run longer hours, too.(December 27, 2007)

    YAHOO-An old man called Shen Yuan made five Fuwa toys with 6,000 pieces of paper. It took him a few months of to finish them. Mr. Shen will make another five bigger  Fuwa toys and send them to Beijing.

(January 7, 2008)

     BAIDU-The Olimpic Flame(圣火)  has arrived in Beijng, show that the Olympic Games  in China will

soon begin. From today, the torch(火炬)will carry the Flame across the world. (March 31, 2008)

     XINHUA-Yang Yang, a famous Chinese skater,  received the Beijing Olympic torch from a leader in

Sanya,  May 4, 2008. Yang ran the first 200 metres during the torch relay (接力) in Sanya, the first leg in

the Chinese mainland(大陆). (May 4, 2008)

1. ____ isn't mentioned in the news above.

A. The bus      

B. The    

C. The subway    

D. The plane

2.  The old man's Fuwa toys were made of ___. 

A.  glass    

B. paper    

C. cotton    

D. silk

3.  The torch has carried the Flame across the world since ___.

A.  December 27, 2007      

B. January 7, 2008

C.  March 31, 2008        

D.  May 4, 2008

4.  In the Chinese mainland, the first leg of the torch relay started in ____.

A. Beijng    

B. Chongqing    

C. Shanghai    

D. Sanya

5.  There ____ of news about the Olympic torch relay here.

A. is only one piece      

B. are two pieces    

C. are three pieces

D. are four pieces

选择题