试题与答案

对于电磁波和声波，以下说法正确的是 A．都能在真空中传播 B．都是纵波 C．都能

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题型：选择题

题目：

对于电磁波和声波，以下说法正确的是

A．都能在真空中传播

B．都是纵波

C．都能发生衍射

D．传播速度都与介质有关

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：电磁波
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题型：阅读理解

阅读理解。

     Bruno was a boy of eight. His father worked in a cinema and his mother worked in a shop. He lived not far from his school. He always walked there and walked home. On his way to school, he had to pass a playground. It was full of water after it rained. Many boys liked playing in the water, so they often got their clothes wet (湿的). One day, when Bruno got home, his clothes were all wet. His mother got angry and said, "Don't play in the water on your way home from school!"

     The next day, Bruno came home with wet and dirty clothes. His mother got angrier. "I’ll tell your father if you come back wet again, " said his mother.

     The third day the little boy was dry when he came home.

     "You are a good boy today, " his mother said happily. "You didn’t play in the water. "

     "No, " the boy said unhappily. "There were too many older boys in the water when I got there this afternoon. There wasn't any room for me at all. "

1. His mother was a ________.

A. movie maker    

B. teacher    

C. shop assistant  

D. housewife

2. Bruno went to school________

A. by bus          

B. by bike

C. in his father's car

D. on foot

3. Bruno got wet________

A. because of the rain                  

B. because he played in the water

C. because it was hot that day              

D. because he passed the playground

4. Bruno played in the water ________

A. once          

B. twice      

C. three times      

D. four times

5. From the story we can know that________

A. Bruno’s father was not angry when he knew Bruno got wet,

B. Bruno didn’t play in the water because he didn’t want to make his mother angry,

C. Bruno was not a student.

D. Bruno liked playing in the water.

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