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1. 阅读理解
There
is an English saying: "Laughter is best medicine." Until recently,
few people took the saying seriously. Now, however, doctors have begun to look
into laughter and the effects it has on the human body. They have found that
laughter really can improve people's health.
Tests
were carried out to study the effects of laughter on the body. People watched
funny films while doctors checked their heart, blood pressure, breathing and
muscles. It was found that laughter has similar effects to physical exercises.
It increases blood pressure, the heart beating and breathing. It also works
several groups of muscles in the face, the stomach, and even the feet. If
laughter exercises the body, it must be beneficial.
Other
tests have shown that laughter appears to be able to reduce the effect of pain
on the body. In one experiment doctors produced pain in groups of students who
listened to different radio programs. The group that tolerated(忍受) the pain for the longest time was the
groups which listened to a funny program. The reason why laughter can reduce
pain seems to be that it helps to produce a kind of chemicals in the brain
which diminish both stress
and pain.
As a
result of these discoveries, some doctors in the United States now hold
laughter clinics, in which they help to improve their patients' condition by
encouraging them to laugh. They have found that even if their patients do not
really feel like laughing, making them smile is enough to produce beneficial(有益的) effects similar to those who are
caused by laughter.
（1）The main idea of the passage is ________.
A . laughter and physical exercises have similar effects
B . smile can produce the same effects as laughter
C . pain can be reduced by laughter
D . laughter is best medicine
（2）The underlined word "diminish" is similar to ________.
A . test
B . stop
C . reduce
D . increase
（3）Doctors hold laughter clinics ________.
A . to give better condition to their patients
B . in order to improve patients' health
C . to make patients smile all the time
D . to prove smile and laughter have the same effect
