There is an English saying," Laughter is the best medicine." Until recently, few people took the saying seriously. Now, however,

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问题     There is an English saying," Laughter is the best medicine." Until recently, few people took the saying seriously. Now, however, doctors have begun to look into laughter and the effects it bas 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 exercise. 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 the pain for the longest time was the group 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 effects similar to those caused by laughter.
Doctors hold laughter clinics ______.

选项 A、to give better condition to their patients
B、in order to improve patients’ health
C、to make patients smile
D、to prove smile and laughter have the same effect

答案B

解析 本题是对细节信息和词汇知识的考查。其中关键词为laughter clinics。最后一段第1句含有上述词汇。继续读时发现help to improve...patients’condition by...与B项一致。故 B项是正确的。而原文中的by...部分是指采用的方式,而非目的,所以C项不对。A项(give better condition提供较好环境)不符合原文信息(improve...patients’condition改善健康状况),所以不对。 D项不是建laughter clinics的初衷,而是doctors在治疗中的发现,因此也不对。
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