题目内容
【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
There is an English saying:“____【1】_.” 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．___【2】___.
Tests were carried out to study the effects of laughter on the body．People watched funny films while doctors checked their hearts, blood pressure, breathing and muscles．It was found that laughter has similar effects to physical exercise．_【3】__．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(忍耐) the pain for the longest time was the group which listened to a funny program．_【4】___.
__【5】___．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．
A．Laughter can prolong one’s life.
B．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．
C．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.
D．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.
E．Although laughter helps cure the disease, doctors still can not put this theory into clinic practice.
F．Laughter is the best medicine.
G．They have found that laughter really can improve people’s health
【答案】
【】F
【】G
【】D
【】C
【】B
【解析】
【1】由空格前的saying（谚语）一词可得到提示，可推断此空格填的应该是一句谚语，故选F。
【2】由空格前的一句中出现的look into此关键词得到提示，，可知与G选项中的found匹配，故选G。
【3】由空格前后的physical exercise和exercises the body等词得到提示，可知空格的内容应该讲的是与身体有关的，故选D。
【4】根据前面的内容，空格应该对此作出总结，应选B。
【5】根据本段后面的内容，不难看出B选项正确。
