2. 外语
  3. Our bodies are wonderfully skilful at maintaining balance. When the temperature jumps, we sweat to cool down. When our blood pre

Our bodies are wonderfully skilful at maintaining balance. When the temperature jumps, we sweat to cool down. When our blood pre

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问题     Our bodies are wonderfully skilful at maintaining balance. When the temperature jumps, we sweat to cool down. When our blood pressure falls, our hearts pound to compensate. As it turned out, though, our natural state is not a steady one. Researchers are finding that everything from blood pressure to brain function varies rhythmically with the cycles of sun, moon and seasons. And their insights are yielding new strategies for keeping away such common killers as heart disease and cancer. Only one doctor in 20 has a good knowledge of the growing field of "chronotherapeutics", the strategic use of time (chronos) in medicine. But according to a new American Medical Association poll, three out of four are eager to change that "The field is exploding", says Michael Smolensky. "Doctors used to look at us like, ’What space ship did you guys get off ?’ Now they’re thirsty to know more. "
    In medical school, most doctors learn that people with chronic conditions should take their medicine at steady rates. "It’s a terrible way to treat disease," says Dr. Richard Martin. For example, asthmatics (气喘患者) are most likely to suffer during the night. Yet most patients strive to keep a constant level of medicine in their blood day and night, whether by breathing in on an inhaler (吸入器) four times a day or taking a pill each morning and evening. In recent studies, researchers have found that a large midafternoon dose of a bronchodilator (支气管扩张 剂) can be as safe as several small doses, and better for preventing nighttime attacks.
    If the night belongs to asthma, the dawn belongs to high blood pressure and heart disease. Heart attacks are twice as common at 9 a. m. as at 11 p. m. Part of the reason is that our blood pressure falls predictably at night, then peaks as we start to work for the day. "Doctors know that," says Dr. Henry Black of Chicago Medical Center, "but until now, we haven’t been able to do anything about it. " Most blood pressure drugs provide 18 to 20 hours of relief. But because they’re taken in the morning, they’re least effective when most needed. "You take your pill at 7and it’s working by 9," says Dr. William White of the University of Connecticut Health Center. "But by that time you’ve gone through the worst four hours of the day with no protection,"Bedtime dosing would prevent that lapse, but it would also push blood pressure to dangerously low levels during the night.
Which of the following statements is NOT true?
选项 A、Doctors know more about chronotherapeutics than before.
B、Doctors in the U. S. used to be thirsty to know more about the new medical field.
C、The researchers’ insights are providing new strategies to prevent common killers.
D、The strategic use of time in medicine attracts more attention in the medical circle in the U.S.
答案B
解析 本题是一道判断是非题。问下面哪个说法是不正确的。针对四个选项的内容，利用查阅式阅读法，结合原文相关信息，我们可以发现，“时间疗法”是一个新的治疗方法，它通过合理掌握用药时间，达到更有效的治疗目的。所以，第一段后半段指出，只有1／20的医生掌握这一新领域。但是，根据美国医学协会的调查，3／4的人想改变这种状况。所以，斯莫林斯基说：这个领域正在“爆炸”，医生们曾经把我们看做“天外来客”。他们说：“你们老兄们是坐什么飞船来的?”现在，他们却极力想更多地了解这一领域。可见，医生们才刚刚开始对“时间疗法”感兴趣。因此，本题的正确答案应是B“美国医生曾对这一新医学领域怀有极大的好奇心”。
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