题目
There are three main types of the influenza virus(病毒). The most important of these are type A and B, each of them having several subgroups. With the instruments at the hospital the doctor recognized that the outbreak was due to a virus in group A, but he did not know the subgroup. Then he reported the outbreak to the World Health Organization in Geneva. W.H.O. published the important news alongside reports of a similar outbreak in Hong Kong, where about 15~20% of the population had become ill.
As soon as the London doctors receive the package of throat samples, doctors began the standard tests. They found that by reproducing itself with very high speed, the virus had grown more than a million times within two days. Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. None of them gave any protection. This, then, was something new, a new influenza virus, against which the people of the world had no help whatever. Having found the virus they were working with, the two doctors now dropped it into the noses of some specially selected animals, which get influenza much as human beings do. In a short time the usual signs of the disease appeared. These experiments proved that the new virus was easy to catch, but that it was not a killer. Scientists, like the general public, call it simply Asian flu.
The first discovery of the virus, however, was made in China before the disease had appeared in other countries. Various reports showed that the influenza outbreak started in China, probably in February of 1957. By the middle of March it had spread all over China. The virus was found by Chinese doctors early in March. But China is not a member of the World Health Organization and therefore does not report outbreaks of disease to it. Not until two months later, when travelers carried the virus into Hong Kong, from where it spread to Singapore, did the news of the outbreak reach the rest of the world. By this time it was started on its way around the world.
Thereafter, W.H.O.&39;s Weekly Reports described the steady spread of this virus outbreak, which within four months swept through every continent.
1. The doctor in Singapore performed a valuable service by
2. One interesting thing about the virus in the story was that
3. The type of influenza discussed in the story
4. The experiments in giving the virus to animals proved that this type of influenza was easy to catch but
5. One reason why the outbreak of the disease was not discovered sooner
第1题
The doctor in Singapore performed a valuable service by ______.
A.finding the subgroup of the virus
B.developing a cure
C.keeping his patients apart from others
D.reporting the outbreak to Geneva
第2题
The doctor in Singapore performed a valuable service by______.
A.finding the subgroup of the virus
B.developing a cure
C.keeping his patients apart from others
D.reporting the outbreak to Geneva
第3题
The Singapore doctor found the influenza was caused by
A.an influenza virus type B.
B.a sub-group of virus type A.
C.a virus only existing in Asia.
D.a new type of influenza virus.
第4题
W.H.O. reported the influenza because ______.
A.the doctor belonged to that organization
B.many people in Hong Kong also suffered from it
C.the doctor found its virus and sent the samples to them
D.it spread widely in Singapore for the first time
第5题
W.H.O. reported the influenza because ______.
A. the doctor belonged to that organization
B. many people in Hong Kong also suffered from it
C. the doctor found its virus and sent the samples to them
D. it spread widely in Singapore for the first time
第6题
W. H. O, reported the influenza because
A.a doctor found its virus and reported to it.
B.many people in Hong Kong suffered from it.
C.it spread widely in Singapore for the first time.
D.the doctor belonged to that organization.
第7题
Who reported the influenza because ______.
A.the doctor belonged to that organization
B.many people in Hong Kong also suffered from it
C.the doctor found its virus and sent the samples to WHO
D.it spread widely in Singapore for the first time
第8题
W. H. O. reported the influenza because
A.a doctor found its virus and reported to it.
B.many people in Hong Kong suffered from it.
C.it spread widely in Singapore for the first time.
D.the doctor belonged to that organization.
第9题
A.design
B.instrument
C.agency
D.tool
第10题
A.shore
B.bank
C.ocean
D.sea
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