8.There is an English saying:"Laughter is the best medicine."Until recently,few people took the saying very seriously.Now however,doctors have begun to study laughter and the effects it has on the human body.They have found facts 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 rate,blood pressure,breathing and muscles.It was found that laughter has similar effects to physical exercise.It increases blood pressure,the heart rate and the rate of 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 reducing the effect of pain on the body.In one experiment doctors produce pain on the body.In one experiment doctors produce pain in groups of students who listened to different radio programs.The group which 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 endorphins in the brain.These are natural chemicals which diminish both stress and pain.
There is also some fact to suggest that laughter helps the body's immune system,that is,the system which fights infection.In an experiment,one group of students watched a funny video while another group of students served as the control group----in other words,a group with which to compare the first group.Doctors checked the blood of the students in both groups and found that the people in the group that watch the video had an increase in the activity of their white blood cells,that is,the cells which fight infection.
As a result of these discoveries,some doctors and psychiatrists in the United States now hold laughter clinics,in which they try 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.
33.It can be learnt from the passage that laughter canC.
A.make people feel younger
B.change people's habits
C.improve peoples health
D.make people love their lives
34.Smiling can produceB.
A.more effects than laughter
B.the same effects as laughter
C.less effects on the human body
D.no effects on the human body
35.The main idea of this passage is thatD.
A.there are several ways of studying the benefits of laughter
B.laughter and physical exercise have the same effects on human body
C.the doctors should learn how to make people laugh
D.tests show that laughter can produce beneficial effects on human body.
分析 这篇文章讲的是笑是良药,而且能减轻病人的痛苦,能够锻炼身体并提高人的免疫能力.医生现在开始研究笑及其对人身体的作用.
解答 33.C.细节理解题.根据Now however,doctors have begun to study laughter and the effects it has on the human body.They have found facts that laughter really can improve people's health.可知,笑有助于人们的健康.故选C.
34.B.细节理解题.根据文中原句They have found that even if their patients do not really feel like laughing,making them smile is enough to produce good effects similar to those caused by laughter.(他们发现即使他们的病人确实不想笑,使他们微笑也能产生和由笑产生的相似的效果.)可知此题选B.
35.D.主旨大意题.根据全文描述这篇文章主要是说明通过实验说明笑能对人体产生积极的作用,故选D.
点评 考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.