题目内容

Beijing has struggled with smog for years,which has__________ the sun and affected the health and quality of life of millions.
A.driven awayB.pushed outC.broken offD.blocked off
D               
             
试题分析:考查动词短语辨析。A.driven away开走;B.pushed out开除;C.broken off中断;D.blocked off阻挡。句意:北京这些年来一起受雾霾影响,阻挡阳光,影响人们的健康与生活质量。Which代指smog,雾霾阻挡阳光,所以选D项。          
考点 : 考查动词短语辨析
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七选五
There is an English saying:“___小题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. __小题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.小题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. _____小题4:.____.
___小题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

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