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单选题

    Aging happens to all of us, and is generally thought of as a natural part of life. It would seem silly to call such a thing a “disease”.

    On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more. In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency.

    Biophysicist Alex Zhavoronkov believes that aging should be considered a disease. He said that describing aging as a disease creates incentives to develop treatments.

    “It unties the hands of the pharmaceutical (制药的) industry so that they can begin treating the disease and not just the side effects,” he said.

    “Right now, people think of aging as natural and something you can’t control.” he said. “In academic circles, people take aging research as just an interest area where they can try to develop interventions. The medical community also takes aging for granted, and can do nothing about it except keep people within a certain health range.”

    But if aging were recognized as a disease, he said, “It would attract funding and change the way we do health care. What matters is understanding that aging is curable.”

    “It was always known that the body accumulates damage,” he added. “The only way to cure aging is to find ways to repair that damage. I think of it as preventive medicine for age-related conditions.

   Leonard Hayflick, a professor at the university of California, San Francisco, said the idea that aging can be cured implies the human lifespan can be increased, which some researchers suggest is possible. Hayflick is not among them.

    “There’re many people who recover from cancer, stroke or heart disease. But they continue to age, because aging is separate from their disease,” Hayflick said. “Even if those causes of death were eliminated, life expectancy would still not go much beyond 92 years.”

47. How do many scientists view aging now?

A
It might be prevented and treated.
B
It can be as risky as heart disease.
C
Results from a vitamin deficiency.
D
It is an irreversible biological process.
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答案:

A

解析:

47. A) It might be prevented and treated.

解析:根据题干中的scientists以及选项中的heart disease, vitamin deficiency可定位至文章第二段。通过aging itself might be seen as something treatable可以得出衰老是可以治疗了,因此应选择A项。B项是对文意的曲解:原文说衰老是心脏病等状况的风险因素,并非是衰老和心脏病同样危险;C选项是无中生有:原文只是说衰老就像维生素缺乏一样可以治疗,并没有提及衰老是由于维生素缺乏;D项与原文中的treatable相悖。

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