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 _ _ it has on the human body. They have found that laughter really can _ _ people’s health. Tests were carried out to study the effects of laughter on the body. People watched funny films __ __ doctors checked their heart, blood pressure, breathing and muscles. It was found that laughter has similar effects to exercise. It decreases blood pressure, the heart beat and breathing; it also works several groups of muscles in the face, the stomach, and even the feet. If laughter 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 pain in groups of students who listened to different radio programs. The group that tolerated the pain for the 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( 减少 ) both stress and pain. As a of these discoveries, some doctors in the United States now hold laughter clinics, in which they help to improve their patients’ condition by __ 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 to those caused by laughter.
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小题1:C
小题2:B
小题3:C
小题4:B
小题5:D
小题6:B
小题7:C
小题8:C
小题9:A
小题10:D
题目分析：文章介绍大笑的好处，可以改善人们的健康，大笑相当于锻炼的效果，很多医生鼓励病人笑来治疗他们的疾病。
小题1:考查名词：A. harm伤害，B. strength力量，C. effect 影响，D. good好，医生开始调查笑和笑对人的影响，选C
小题2:考查动词：A. help帮助，B. improve提高，C. increase增加，D. damage破坏，他们发现笑可以提高人们的健康，选C
小题3:考查连词：A. if 如果，B. but 但是，C. while当…时候，虽然，然而，D. since自从，当医生检查他们的心脏呼吸，血压和肌肉的时候，人们看滑稽的电影，选C
小题4:考查形容词：A. mental精神，B. physical身体的，C. practical 实际的，D. medical医学的，结果证明笑和实际的锻炼有相似的作用，选C
小题5:考查动词：A. guarantees保证，B. applies应用，C. maintains保持，D. exercises锻炼，从前面的句子：It decreases blood pressure, the heart beat and breathing; it also works several groups of muscles可知如果笑可以锻炼身体，那它对健康是有益的，选D
小题6:考查动词：A. overlooked忽视，B. produced产生，制造，C. preserved保留，D. ensured确保，医生对听不同广播的学生制造出疼痛，选B
小题7:考查形容词：A. remaining剩余的，B. rest其余的，C. longest最长的，D. adequate足够的，容忍最长时间的疼痛的的组是听滑稽的节目的组，选C
小题8:考查名词：A. fact事实，B. matter问题，C. result结果，D. sign标志，as a result of由于，选C
小题9:考查动词：A. encouraging 鼓励，B. allowing 允许，C. assisting 帮助，D. reminding提醒，医生通过鼓励病人笑改善他们的健康，选A
小题10:考查形容词：A. respectful可敬的，B. subtle狡猾的， 敏感的C. adaptable适应的，D. similar 相似的，使他们笑和大笑产生的有益的效果很相似。选D