单选题 What was the purpose of the professor's experiments?

A. To find out how clever monkeys were.
B. To test the intelligence of different animals.
C. To compare the difference between man and the monkey.
D. To find out how monkeys search for food.

【正确答案】 B

【答案解析】[解析] A university professor recently made several experiments with different animals to find out which was the most intelligent. He found out that the monkey was more intelligent than other animals. In one experiment the professor put a monkey in a room where there were several small boxes. Some boxes were inside other boxes. One small box had some food inside of it. The professor wanted to watch the monkey and to find out how long it would take the monkey to find the food. The professor left the room. He waited a few minutes outside the door. Then he knelt down and put his eye to the keyhole. What did he see? To his surprise he found himself looking directly into the eye of the monkey. The monkey was looking at the professor through the other side of the door.

单选题 Why did the professor put the food in a small box?

A. To give the monkey a surprise.
B. To see how the monkey ate from a box.
C. To see how soon the monkey could find it.
D. To find out how the monkey would open the box.

【正确答案】 C

【答案解析】

单选题 How did the professor watch the monkey?

A. By waiting outside the door.
B. By waiting inside the door.
C. By kneeling down at the door.
D. By putting it in a small box.