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__71__   But today, airlines have quitted those requirements because they can't find enough qualified pilots.

__72__    But qualified pilots are few in the United States. Every year there are more planes being flown. At the same time, 12 to 15 foreign countries are recruiting (招募) American pilots.

As a result, pilots are earning spectacular salaries. The going rate for skilled pilots is well over $180,000 a year. Some pilots can earn about $320,000 plus free housing working for foreign airlines.

__73__    They fear the number of crashes will increase. Each year, more and more pilots with less than 2,000 hours of experience are being hired. Airlines are also bringing on board many more pilots who are older than 50, although law requires pilots to retire at the age of 60.

Being an airline pilot is a difficult job that requires people to make life and death decisions under pressure. Some pilots crack under the pressure.

__74__   Air Force pilots have to spend at least six years in the Air Force. The Air Force invests millions of dollars to train each.

__75__   Congress may organize a research group to study the country's pilot needs.

A.A few years ago, a pilot had to have perfect eyesight and a college degree if he or she wanted to land a job with an American airline.

B.Twenty years passed and he returned to his hometown.

C.The military is also having a hard time keeping pilots.

D.Experts say this problem is going to get a lot worse.

E.Airlines must hire up to 62,000 new pilots in the next decades.

F.There are only a few large cities which have put such high?tech cards into use.

G.Because of the shortage, some people say unqualified pilots are being allowed to fly planes.

 

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When one person gains weight, their close friends often follow. Researchers have just offered

evidence in a study that says obesity(肥胖)appears to spread through society. But the findings

might also offer hope.

    If friends help make obesity acceptable, then they might also be influential in losing the fat.

The researchers note that support groups are already an effective tool in dealing with other socially influenced problems, like alcoholism(酗酒).

  The findings appeared in the New England Journal of Medicine. The researchers used information collected from 12,000 people. It was collected between 1972 and 2003 as part of the Framingham Heart Study.

  The information was highly detailed. There was even contact information for close friends of the people in the study.

  The researchers examined more than 40,000 social ties. They found a person’s chances of becoming severely overweight increased by 50% if a friend had become obese. The risk for a wife or husband was a little less than that.

Nicholas Christakis of Harvard Medical School was a lead researcher in the study. He says there is a direct causal relationship between a person getting fat and being followed in weight gain by a friend.

  The study found that the sex of the friends was also an influence. In same-sex friendship, a person had a 71% increased risk of becoming obese. Men had a 44% increased risk of becoming obese after weight gain in a brother. In sisters, it was 67%.

  The researchers also considered the effect of where people lived in relation to each other. James Fowler of the University of California was the other lead expert. He says a friend who lives a few hundred kilometers away has as much influence as one in the same neighborhood. He says the study demonstrates the need to consider that a major part of people’s health is tied to their social connections.

  Both researchers say their research shows that obesity is not just a private medical issue, but also a public health problem.

1.What does the underlined sentence in Paragraph Two mean?

  A.Obesity has negative influence on close friends.

  B.Friends might also play a part in losing weight.

  C.One might have positive influence on one’s friend.

  D.Friendship may have little to do with one’s health.

2.Which of the following statements would Nicholas Christakis agree to?

  A.If one gains weight, one’s friends are likely to get fat.

  B.Social problems like alcoholism are easy to deal with.

  C.Friends usually don’t follow each other to lose weight.

  D.One might influence others on their social behavior.

3.James Fowler seems to believe that__________ .

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  B.one’s health has nothing to do with friends

  C.social connections have effects on one’s life

  D.a friend living faraway has the same influence as one’s neighbor

4.The author makes his point clear in the text that__________ .

  A.a major part of people’s health is based on their genes

  B.friends living closer have greater influence on one’s health

  C.social relationship is closely connected with people’s health

  D.people’s physical condition is subject (受支配的) to social connections

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Ever tried taking smart drugs to perform better in exams? They

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mally used for narcolepsy(嗜眠发作症).Guess what? While I was

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In my experience, Modafinil changes people's behaviour too. Over those weeks my friends  became different people-in turn aggressive, cold. Even eating became "a waste of time" and sodid conversation.

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   D. Modafinil is safe in healthy people.

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