2. 考研
  3. "Humans should not try to avoid stress any more than they would shun food, love or exercise." said Dr. Hans Selye, the first phy

"Humans should not try to avoid stress any more than they would shun food, love or exercise." said Dr. Hans Selye, the first phy

admin2014-03-15  17
问题    "Humans should not try to avoid stress any more than they would shun food, love or exercise." said Dr. Hans Selye, the first physician to document the effects of stress on the body. While here’s no question that continuous stress is harmful, several studies suggest that challenging situations in which you’re able to rise to the occasion can be good for you.
   In a 2001 study of 158 hospital nurses, those who faced considerable work demands but coped with the challenge were more likely to say they were in good health than those who felt they couldn’t get the job done.
   Stress that you can manage may also boost immune(免疫的)function. In a study at the Academic Center for Dentistry in Amsterdam, researchers put volunteers through two stressful experiences. In the first, a timed task that required memorizing a list followed by a short test, subjects believed they had control over the outcome. In the second, they weren’t in control: They had to sit through a gory(血淋淋的)video on surgical procedures. Those who did go on the memory test had an increase in levels of immunoglobulin(免疫球蛋白)A, an antibody that’s the body’s first line of defense against germs. The video-watchers experienced a downturn in the antibody.
   Stress prompts the body to produce certain stress hormones. In short bursts these hormones have a positive effect, including improved memory function. "They can help nerve cells handle information and put it into storage," says Dr. Bruce McEwen of Rockefeller University in New York. But in the long run these hormones can have a harmful effect on the body and brain.
   "Sustained stress is not good for you," says Richard Morimoto, a researcher at Northwestern University in Illinois studying the effects of stress on longevity (长寿),"It’s the occasional burst of stress or brief exposure to stress that could be protective. "(325w)
The passage is mainly about ______.
选项 A、the benefits of manageable stress
B、how to avoid stressful situations
C、how to cope with stress effectively
D、the effects of stress hormones on memory
答案A
解析  解答此类题目的方法通常要点击短文首段或各段的段首句。但有时也可能需要点击一下首段或结尾段的段末句。这样不难发现首段的最后一句话为短文的主题句，句子中心意思是“although continuous stress is harmful，challenging situations can be good for you”(虽然持续的压力对人有害，但具有挑战性的情况可能对你很有好处)。句中的challenging situations和continuous stress相对，即为选项[A]中的manageable stress。接下来三段的段首句都是围绕压力与人的关系这一中心从不同的方面支持论点的。第三段首句中的Stress that you can manage…也可以转述为manageable stress。
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