5. The passage mainly discusses _______.

A. the experiments on the common col    B. the fallacy about the common cold

C. the reason and the way people catch colds  D. the continued spread of common colds

第79天              A

Visiting U.S. President George W. Bush said in Beijing Friday that both China and the United States should encourage bilateral(双边的) contacts and exchanges to promote mutual(相互) understanding.

“It’s important for our political leaders to come to China,” said Bush, who gave a speech Friday morning at Qinghua University, one of the most prestigious universities in China.

His working visit to China and discussions with Oinghua students “help promote” Sino-U.S.(中美) relations, Bush said in response to a student’s question about what he would do to promote Sino-U.S. relations.

“Many people in my country are very interested in China,” he said, adding that these Americans have learned more about China’s culture and the Chinese people.

He said that he would keep encouraging such contacts and exchanges between the two countries.

Bush said that he would describe back home what he has seen here and that China as a great nation not only has a “great history” but also an “unbelievably exciting future.”

The president said that the 2008 Olympic Games would make a significant opportunity for the rest of the world to understand China, which enables more people to come to China and feel the modernization taking place, and many more people will see it on the television.

Bush arrived in Beijing Thursday for a two-day working visit to China.

4. The writer is probably ________.

A. a bird expert               B. a bird-hunter

C. a bird raiser               D. a scientist

B

The common cold is the world’s most widespread illness, which is plagues(疫病) that flesh receives.

The most widespread fallacy(谬误) of all is that colds caused by cold. They are not. They are caused by viruses(病毒) passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.

During the First World War soldiers who spent long periods in the trenches(战壕), cold and wet, showed no increased tendency to catch colds.

In the Second World War prisoners at the notorious Auschwitz concentration camp(奥斯维辛集中营), naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit in England, volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.

If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter?Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.

No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片) such as aspirin, but all they do is relieve the symptoms(症状).

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