第四部分：阅读理解（共20小题，每小题2分，满分40分）
阅读下列短文，从每小题所给的四个选项（A、B、C和D）中，选出最佳选项
This story took place in Central Africa more than 30 years ago. One day two Europeans got to a small village in which the Negroes lived. One of them looked like the boss, the other was his assistant. The boss looked Sambo up and down said,“Young fellow, you look strong. Would you like to work for me? I will give you more money than at the rubber plantation(橡胶园).”At first Sambo wasn’t able to make up his mind, but a few minutes later he agreed.
Sambo’s new work wasn’t hard. He had only to carry light parcels from the village to the camp of the Europeans. He went a short distance along the road, then into the forest and straight to the camp. On the fifth day, when he went through the woods, he saw a big cage with a lion in it. He hesitated a little and went on. All of a sudden the cage was opened and out jumped the lion with a horrible roar(吼叫).
Sambo dropped the parcel and ran as fast as possible, so as to reach the camp in time. for the white man there were armed with guns. All at once Sambo saw two men high up in the tree. They were the two Europeans for whom he was doing. The assistant was turning the handle of the camera with a smile. It was now clear to him that he had been cheated. His eyes were filled with hatred. He wished to kill them, but it was too late.
1. The young man named Sambo was probably _____.
A. the assistant of the two Europeans           
B. an African who worked at the rubber plantation
C. an African who acted as a hunter in the forest   
D. the servant of the two Europeans.
2. The two Europeans went to the African village_____.
A. so as to take some photos for the villagers there
B. in order that they could write a book on travels.
C. to take a picture which showed how a real lion ate a real man
D. in order to save Sambo in time of danger
3. What did the boss say to Sambo?
A. He asked Sambo to serve as his servant in his country.
B. He wanted Sambo to guard against the lion.
C. He asked Sambo if he was afraid of a lion.
D. He told Sambo that he would be well paid if he would work for him
4. Not until Sambo _____ did he find out that he was cheated.
A. caught sight of the lion                     
B. saw the cage with a lion
C. found the white men on the branch of the tree  
D. ran before the lion as fast as he could
5. In this story the writer mainly told us_____.
A. how Negroes were not so clever as the white  
B. how cruel the two white men were
C. what a silly young man Sambo was 
D. Sambo carted so much for money that he lost his life at last