B There is an English saying: “laughter

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问题:

B

There is an English saying: “laughter is best medicine.” 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. 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 hearts, blood pressure, breathing and muscles. It was found that laughter had 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 programmer. The group that tolerated the pain for the longest time was the groups which listened to a funny programmer. 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.

60.Doctors have proved the following EXCEPT that      .

A. smiling does good to health                  B. laughter can be tolerated

C. there is a way to reduce pain                      D. laughter can work the muscles in the feet

61. The main idea of the passage is       .

A. laughter and physical exercise have similar effects on the human body

B. smile can produce the same effects as laughter

C. pain can be reduced by laughter  

D. laughter is the best medicine

62.The underlined word “diminish” is similar to       .

A. test             B. stop                     C. reduce                  D. increase

63. Doctors hold laughter clinics _________.

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

考点:健康环保类阅读
题型:阅读理解

普查运用于()。

A.发病率低的疾病

B.诊断手段复杂的疾病

C.没有有效治疗方法的疾病

D.发病率高或诊断手段简单、预后良好的疾病

E.任何疾病

题型:阅读理解

患者女,33岁,因“体检发现血红蛋白增高4年”来诊。实验室检查:白细胞10.48×109/L,红细胞6.80×1012/L,血红蛋白181g/L,血细胞比容0.57,血小板363×109/L。

应做的检查有()

A.骨髓活检

B.JAK2V617F基因突变

C.血清促红细胞生成素(sEPO)测定

D.肝、脾和心脏超声

E.骨髓细胞体外±EPO红系爆式集落形成单位(BFU-E)和红细胞集落形成单位(CFU-E)

F.动脉血氧饱和度

G.血清维生素B12

H.中性粒细胞碱性磷酸酶

题型:阅读理解

(4分)下图是甲、乙、丙三种固体的溶解度曲线,试回答:

(1)t3℃时,甲、乙、丙三种物质溶解度的大小关系是        

(2)t3℃时,若将50g的甲、乙两种物质分别加入到100g水中,

充分溶解后,所得的溶液在溶解度曲线图中可表示为   (“A”、“B”或“C”)点,若将甲溶液降温至t1℃,溶液的变化情况是     

I.溶液变为饱和 Ⅱ.溶解度增加 Ⅲ.溶质减少 Ⅳ.溶质的质量分数不变

题型:阅读理解

简述减小电压互感器二次压降的方法。

题型:阅读理解

标准最基本的含义就是( )

A.系列化

B.规定

C.简化

D.通用化

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