阅读理解。
Northern Europeans spend a lot of time in their cold and cloudy winters planning their summer holidays.
They are proud of their healthy color when they return home after the holiday. But they also know that a
certain amount of sunshine is good for their bodies and general health.
In ancient Greece people knew about the curing powers of the sun, but this knowledge was lost. At the
end of the nineteenth century a Danish doctor, Niels Finsen, began to study the effect of sunlight on certain
diseases, especially diseases of the skin. He was interested not only in natural sunlight but also in man-made
produced rays. Sunlight began to play a more important part in curing sick people.
A Swiss doctor, Auguste Rollier, made full use of the sun in his hospital at Leysin. Leysin is a small village
high up in the Alps. The position is important, the rays of the sun with the greatest healing power are the
infra-red (红外线的) and ultraviolet (紫外线的) rays; but ultra-violet rays are too easily lost in fog and the
polluted air near industrial towns. Dr. Rollier found that sunlight, fresh air and good food cure a great many
diseases. He was particularly successful in curing certain forms of tuberculosis(结核病) with his"sun-cure".
There were a large number of children in Dr. Rollier's hospital. He decided to start a school where sick
children could be cured and at the same time continue to learn. It was not long before his school was full.
In winter, wearing only shorts, socks and boots, the children put on their skis after breakfast and left the
hospital. They carried small desks and chairs as well as their school books. Their teacher led them over the
snow until they reached a slope (斜坡)which faced the sun and was free from cold winds. There they set out
their desks and chairs, and school began.
Although they wore hardly any clothes, Rollier's pupils were very seldom cold. That was because their
bodies were full of energy which they got from the sun. But the doctor knew that sunshine can also be
dangerous. If, for example, tuberculosis is attacking the lungs, unwise sunbathing may do great harm.
Today there is not just one school in the sun. There are several in Switzerland, and since Switzerland is
not the only country which has the right conditions, there are similar schools in other places.
1. According to the passage, when did people began to realize sunlight played a more important part in
the treatment of disease?
A. From ancient times.
B. At the end of the nineteenth century.
C. Not until this century.
D. Only very recently.
2. Why are a Danish doctor and a Swiss doctor mentioned in the second and third paragraphs?
A. Because they both made use of sunlight to treat illness.
B. Because they were the first people who used sunlight for treatment.
C. Because they were both famous European doctors.
D. Because they used sunlight in very different ways.
3. Dr Rollier set up a "sun-cure" school probably for the reason that _____.
A. most children could stay in his hospital
B. children could study while being treated
C. the school was expected to be full of pupils
D. the school was high up in the mountains
4. What can be inferred from the last paragraph of the passage?
A. "Sun-cure" schools are becoming popular everywhere.
B. Switzerland is the only country where "sun-cure" schools are popular.
C. Proper Conditions are necessary for the running of a"sun-cure" school.
D. "Sun-cure" schools are found in countries

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