同学们都玩过拨浪鼓吧．“演示地球形状变化的试验示意图”与玩拨浪鼓很类似．这个试验能说
题型：单项选择题
问题：
同学们都玩过拨浪鼓吧．“演示地球形状变化的试验示意图”与玩拨浪鼓很类似．这个试验能说明（）
A．地球因为自转变成了一个正圆球体
B．地球因为公转变成了一个两极略鼓赤道略扁的球体
C．地球因为自转变成了一个两极略扁赤道略鼓的球体
D．地球正在向正圆球体演化
题型：单项选择题
It doesn’t matter when or how much a person sleeps, but everyone needs some rest to stay alive. That’s what all doctors thought, until they heard about Herpin. Herpin, it was said, never slept, Could this be true? The doctors decided to see this strange man themselves.
Herpin was 90 years old when the doctors came 
to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised . Though they watched him hour after hour and day after day, they never saw Herpin sleeping , In fact, he did not even own a bed. He never needed one.
The only rest that Herpin sometimes got was sitting in a comfortable chair and reading newspapers. The doctors were puzz
led by this strange continuous sleeplessness. They found only one answer that might explain his condition. Herpin remembered some talk about his mother having been injured several days before he was born. But that was all. Was this the real reason? No one could be sure.
Herpin died at the age of 94.
小题1:The main idea of this passage is that _______.
A．a person was found who actually didn’t need any sleep
B．large numbers of people do not need sleep
C．everyone needs some sleep to stay alive
D．people can live longer by trying not to sleep小题2:The doctors came to visit Herpin , expecting to ______.
A．cure him of his sleeplessness
B．find that his sleepless
ness was not really true
C．find a way to free people from the need of sleeping
D．find out why some old people didn’t need any sleep小题3: After watching him closely, the doctors came to believe that Herpin ________.
A．was too old to need any sleep
B．often slept in a chair
C．needed no sleep at all
D．needed some kind of sleep小题4:One reason that might explain Herpin’s sleeplessness was ________.
A．that he hadn’t got a bed
B．that he had gradually got rid of the sleeping habit
C．his mother’s injury before he was born
D．his magnificent physical condition