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 of this influenza. There are three main types of the influenza virus. 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. WHO published the important news alongside reports of a similar outbreak in Hong Kong, where about 15-20 percent of the population had become ill. As soon as the London doctors received 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 have 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 1957. By the middle 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 WHO 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 well on its way around the world.

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

One interesting thing about the virus in the story was that it______.

A．was especially weak

B．was similar to other viruses

C．could reproduce with great speed

D．had samples frozen and packed in dry ice

The type of influenza discussed in this story______.

A．had been classified years before

B．could not be cured by any known drug

C．could be prevented from spreading

D．could not affect adults

The experiments in giving the virus to animals proved that this type of influenza was easy to catch______.

A．and could possibly cause death

B．and had rather mild effects

C．but was not deadly

D．and did not have the usual signs

One reason why the outbreak of the disease was not discovered sooner was that

A．China did not belong to WHO.

B．doctors in Asia did not recognize the disease

C．reporting procedures were not good enough

D．the people who caught it were travelers

The feeling of______disaster haunted them all the time. resolute impending agile brutal

My grandfather Paul Goodman______to my endless of music. helped dedicated committed contributed

I was discharged in 1947 and, motivated by intellectual curiosity, decided upon a career in medical research at a time when such a choice was not______. fashionable adaptable welcome warmhearted

But if you allow me to be frank, it’s the people, especially, the younger generation that I’m______. worried about taken in likely to be agreed at

Romanticism______emotion and imagination over reason. estimated involved invoked valued

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Anyone can give examples of dreadful damages done by this industry, which is apparently develop with the expense of the environment. which apparently developing at the expense of which apparently develop in the expense of which is apparently developing at the expense of which is apparently developing in the expense of

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The influenza outbreak in this story began in______.

Without counting the subgroups, there are______type(s) of influenza.

The doctor in Singapore performed a valuable service by______.

One interesting thing about the virus in the story was that it______.

The type of influenza discussed in this story______.

The experiments in giving the virus to animals proved that this type of influenza was easy to catch______.

One reason why the outbreak of the disease was not discovered sooner was that

Once an influenza outbreak is started, for its spread around the world takes about

To keep track of a disease such as influenza, WHO must have______.

One thing necessary for discovering influenza outbreaks is______.