第4部分：阅读理解（第31～45题，每题3分，共45分）
下面有3篇短文后有5道题。请根据短文内容，为每题定1个最佳选项。
Happy Therapy （诊疗）
Norman Cousins was a businessman from the United States who often traveled around the world on business. He enjoyed his work and traveling.
Then， after returning to the United States from a busy and tiring trip to Russia， Mr. Cousins got sick. Because he had pushed his body to the limit of its strength on the trip， a chemical change began to take place inside him. The material between his bones became weak.
In less than one week after his return， he could not stand. Every move that he made was painful. He was not able to sleep at night.
The doctors told Mr. Cousins that they did not know how to cure his problems and he might never get over the illness. Mr. Cousins， however， refused to give up hope.
Mr. Cousins thought that unhappy thoughts were causing bad chemical changes in his body. He did not want to take medicine to cure himself. Instead， he felt that happy thoughts or laughter might cure his illness.
He began to experiment on himself while still in the hospital by watching funny shows on television. Mr. Cousins quickly found that ten minutes of real laughter during the day gave him two hours of pain-free sleep at night，
Deciding that the doctors could not help him， Mr. Cousins left the hospital and checked into a hotel room where he could continue his experiments with laughter. For eight days， Mr. Cousins rested in the hotel room watching funny shows on television， reading funny books， and sleeping whenever he felt tired. Within three weeks， he felt well enough to take a v acation to Puerto Rico where he began running on the beach for exercise.
After a few months， Mr. Cousins returned to work. He had laughed himself back to health.
31 Mr. Cousins got sick after returning from
A a busy trip to the US.
B a tiring trip to Russia.
C a trip around the world.
D a trip to Puerto Rico.
32 How did the doctors respond to Mr. Cousins' illness?
A They promised to cure him.
B They didn't think he was really sick.
C They told him not to give up hope.
D They said they were unable to help him in any way，
33 Mr. Cousins attributed the bad chemical changes in his body to
A unhappy thoughts.
B a severe illness.
C weak bones.
D too much sleep.
34 What didn't Mr. Cousins do in his experiments with laughter?
A Watch funny TV shows.
B Read funny books.
C Sleep whenever he felt tired.
D Take medicine.
35 Mr. Cousins cured his own illness
A by laughing at others.
B by acting in funny shows.
C by taking a happy therapy.
D by writing funny stories.