英语三级A级

单选题 It is uncertain that

A.how many body shapes there are
B.how the taste buds arrange on your tongue   
C.food preference is a physiological choice   
D.whether our body shape is decided by the food we enjoy most

参考答案:D进入在线模考
【题型】细节题
【解析】题干意为“…尚未确定”。根据最后一段“It is difficult to dictate whether our body shape dictates the    food We like,orthe food We like dictates body shape”可知,很难断定是我们的体形决定我们喜欢吃的食物,    还是我们喜欢吃的食物决定我们的体形,也就是说,“我们最喜欢吃的食物是否决定了我们的体形”这是尚    未确定的,故选D。

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1 It stands to reason" in the third paragraph means

A.Everyone finds it hard to believe       
B.It is obvious to everyone   
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A.People of the endomorph shape tend to lose weight more difficultly.   
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D.Half of the British are mesomorphs with soft, rounded bodies, and they like most foods.

3根据下列材料,请回答题
The following is a passage about laughter. After reading it, you are required to complete the  outline below it ( No. 46 to No. 50 ). You should write your answers briefly ( in no more than three words) on the Answer Sheet correspondingly.
There is an old saying in English: "Laughter is the best medicine". Until recently, few people took the say- ing very seriously. Now, however, doctors have begun to investigate laughter and the effects it has on the human body. They have found evidence 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 doc- tors 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 capable of reducing the effect of pain on the body.
There is also some evidence to suggest that laughter helps the body' s immune system, that is, the system which fights infection.
As a result of these discoveries, some doctors and psychiatrists (精神病学家)in the United States now hold laughter clinics, in which they try to improve their patients' condition by encouraging them to laugh.
Laughter really can  46______________