40．It can be
inferred from the passage that ________.
A．aggression in girls and boys seemed to
come from the computer
B．playing computer games is no good to
all the children
C．Colwell's studies showed the computer
is connected with violence
D. The computer games can have
connection with violence
B
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 healing 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 artificially 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 Lysine. Lysine 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 ultra-violet (紫外线的) rays; but ultra-violet rays are
too easily lost in fog and the polluted air near industrial towns. Dr. Roller
found that sunlight, fresh air and good food cure a great many diseases. He was
particularly successful in curing certain forms of tuberculosis with his
“sun-cure”.
There were a large
number of children in Dr. Roller’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
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, Roller’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.