阅读理解。

     Once upon a time there was a writer living by the sea. He had a habit of walking along the

beach before he began his work.

     One day he was walking along the beach, and he saw someone moving like a dancer. He

smiled and began to walk faster toward the men. As he got closer, he saw that it was a young

man and the young man wasn't dancing. He was bending down to the send, picking something

up and very gently throwing it into the.sea.

     As he got closer, the writer called out: "Good morning! What are you doing?"

     The young man stopped, looked up, and said: "Throwing starfish( 海星) into the sea. "

     "Why are you doing that?"

     "The sun is up, and the tide( 潮汐)is going out. And if I don't throw them into the sea, they

will die."

     "But, young man, don't you think that there are so long a beach here, and starfish all on the

beach? You can't make difference. "

     The young man listened politely then bent down, picked up another starfish, threw it into the

sea and said: "It made a difference for that one."

     Each of us can make a difference in this world. Everybody is useful. Every small thing you do

will help. 

1. At first the writer thought the young man _____. 

A. was walking with a dancer

B. was dancing along the beach

C. was swimming in the sea 

2. What was the young man actually doing?  

A. He was watching the sun going up.

B. He was waiting for the tide to go out.

C. He was throwing the starfish into the sea.   

3. What did the young man do after the writer said: "You can't make a difference"?  

A. He was angry.

B. He listened politely without saying anything.

C. He went on doing what he thought was right.  

4. The starfish won't _____ if the young man didn't throw them into the sea.  

A. die

B. live on

C. jumps  

5. What does the story tell us?  

A. Walking along the beach is good for health.

B. Don't stop doing good even if it is a small thing.

C. Give up when others ask you to stop.