题目内容

--How do you find the food in the restaurant?

--. I have never enjoyed better food.

ABadBDisappointingCNiceDJust so-so

 

C

【解析】

试题分析:考查交际用语。A很差;B迎令人失望;C很好;D一般化。句意:——在这家餐馆的食物怎么样?——不错,我从没有吃过更好的了。故C正确。

考点:考查交际用语

 

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七选五

There is an English saying:“___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. __ 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. 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. _____4..____.

___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

 

Fish species are expected to shrink in size by up to 24% because of global warming, say scientists.

The scientists argue that failure to control greenhouse gas emissions will have a greater effect on marine ecosystems than previously thought. Previous research has suggested that changing ocean temperatures would affect both the distribution and the reproductive abilities of many species of fish. This new work suggests that fish size would also be heavily affected.

The researchers built a model to see how fish would react to lower levels of oxygen in the water. As ocean temperatures increase, so do the body temperatures of fish. But, according to lead author, Dr William Cheung, from the University of British Columbia, the lower level of oxygen in the water is key. Warmer waters could decrease ocean oxygen levels and greatly reduce fish body weight. On the other hand, rising temperatures directly increase the metabolic rate of the fish's body function. This leads to an increase in oxygen demand for normal body activities. So the fish will run out of oxygen for growth at a smaller body size.

The research team also used its model to predict fish movements as a result of warming waters. The group believes that most fish populations will move towards the Earth's poles at a rate of up to 35km per decade. "So in, say, the North Sea," says Dr Cheung," one would expect to see more smaller-body fish from tropical waters in the future."

Taking these factors into consideration, the research team concludes that fish body size will shrink between 14% and 24%, with the largest decreases in the Indian and Atlantic oceans.

When compared with actual observations of fish sizes, the model seems to underestimate what's actually happening in the seas. The researchers looked at two case studies involving North Atlantic cod and haddock. They found that recorded data on these fish showed greater decreases in body size than the models had predicted.

Dr Alan Baudron, from the University of Aberdeen, UK, believes smaller-sized fish could seriously affect the ability of fish to reproduce. "Smaller fish produce fewer and smaller eggs which could affect the reproductive potential of fish stocks," he said.

1.What's the main idea of the passage?

A. Global warming makes fish smaller.

B. Global warming makes fish decrease in numbers.

C. Global warming affects the fish distribution.

D. Global warming affects the ability of fish to reproduce.

2.What is the key factor making the fish smaller now?

A. The rising body temperatures.

B. The lower level of oxygen in the water.

C. The increasing metabolic rate.

D. The normal body activities.

3.We can infer that as ocean temperatures increase .

A. more big fish will be born in the sea

B. fish tend to swim towards the shore

C. fish tend to move towards the warm areas

D. fish tend to move towards the colder areas

4.What does the underlined word "underestimate" mean?

A. make an exact prediction of B. make too low an estimate of

C. make too high an estimate of D. make a careful study of

 

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