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In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenzalike cases. Influenza is sometimes called “flu”or a “bad cold”. He took samples from the throats of patients in his hospital and was able to find the virus(病毒)of this influenza.

There are three main types of influenza virus. The most important of these are types A and B, each of them having several sub-groups(亚群). At the hospital the doctor recognized that the outbreak was because of a virus group A, but he did not know the sub-group. He reported the outbreak to the World Health Organization in Geneva. W. H. O. published the important news together with reports of the same kind of outbreak in Hong Kong, where about 15%~20% of the population had become ill.

As soon as the London doctors received the package of throat samples, they began to test them. They found that they could reproduce themselves at a very high speed. Continuing their careful tests, the doctor checked the effect of medicine used against all the known sub-groups of type A virus. On this virus, none of them was of any use.

Having separated the virus, the two doctors now made tests on some selected seleceted animals. In a short time the usual signs of the disease appeared. These experiments showed that the new virus spread easily, but that it was not a killer. Scientists, like the general public, called it simply “Asian flu”.

The Asian flu mentioned in the passage ____.       [    ]

A. had something to do with a virus group B

B. was reported to W. H. O in Geneva by a doctor in Hong Kong

C. broke out not only in Singapore but also in Hong Kong

D. was taken from the throats of the patients in a hospital in Singapore

London doctors considered ____.  [    ]

A. Asian flu as a bad cold

B. there were three main types of influenza

C. it was necessary to test the other groups of virus besides group A

D. the influenza called “Asian flu”a new one

The Singapore doctor helped the world by ____.  [    ]

A. making those with Asian flu well again

B. killing the virus that caused Asian flu

C. finding the sub-group of the virus

D. reporting the outbreak of Geneva

The Asian flu virus ____.       [    ]

A. was a killer

B. was very weak

C. could reproduce very quickly

D. died very fast

【小题1】C

【小题2】D

【小题3】D

【小题4】C


解析:

【小题1】本文第一段介绍新加坡一位医生注意到医院在治疗流行性感冒数目很大的病例, 第二段交代:世界卫生组织将这一消息连同来自香港出现的同类感冒传播的报告同时公布。

【小题2】文章最后一段交代:通过英国的两名医生在动物身上做试验, 显示同被称之为“亚洲流行性感冒”由一种易传播的新病毒引起。

【小题3】文章第二段描述新加坡医生发现流行性感冒的传播之后, 即向世界卫生组织予以报告。

【小题4】由最后一段:These experiments showed that the new virus spread easily可知答案。

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In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenza like cases. Influenza is sometimes called“flu”or a“bad cold”. He took samples from the throats of patients in his hospital and was able to find the virus(病毒)of this influenza.

  There are three main types of influenza virus. The most important of these are types A and B, each of them having several sub-groups(亚群).At the hospital the doctor recognized that the outbreak was because of a virus-group A, but he did not know the sub-group. He reported the outbreak to the World Health Organization in Geneva. W.H.O.published the important news together with reports of the same kind of outbreak in Hong Kong, where about 15%~20% of the population had become ill.

  As soon as the London doctors received the package of throat samples, they began to test them. They found that they could reproduce themselves at a very high speed. Continuing their careful tests, the doctor checked the effect of medicine used against all the known sub-groups of type A virus. On this virus, none of them was of any use

  Having separated the virus, the two doctors now made tests on some selected animals. In a short time the usual signs of the disease appeared. These experiments showed that the new virus spread easily, but that it was not a killer. Scientists, like the general pubic, it simply“Asian flu”.

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A.had something to do with a virus group B

B.was reported to W.H.O.in Geneva by a doctor in Hong Kong

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A.Asian flu as a bad cold

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D.the influenza called“Asian flu”is a new one

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B. was reported to W. H. O in Geneva by a doctor in Hong Kong

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There are three main types of influenza virus. The most important of these are types A and B, each of them having several sub-groups(亚群). At the hospital the doctor recognized that the outbreak was because of a virus group A, but he did not know the sub-group. He reported the outbreak to the World Health Organization in Geneva. W. H. O. published the important news together with reports of the same kind of outbreak in Hong Kong, where about 15%~20% of the population had become ill.

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