Peoplewhoareslightlyoverweightormildlyobese(肥胖的)ha...

问题详情：

      people who are slightly overweight or mildly obese(肥胖的) have a lower risk of early

death than normal weight individuals(个人;个体), according to a new analysis of nearly 100

international studies.

    The studies, most conducted within the past decade, included about three million

adults from around the world. The result of these studies by researchers at the National

Center for Health Statistics in Maryland, part of the U.S. Centers for Disease Control and

Prevention, shows that slightly overweight or obese people were six percent less likely to die

from all causes compared to people of normal weight. But the researchers found that

seriously obese individuals were still at a 30 percent greater risk of death compared to

healthy-weight individuals.

     Study lead author Katherine Flegal says she was not surprised that overweight people

would not have a higher death risk. “Because we'd actually already read a lot of this literature

and realized that death rates for overweight would be at least not higher than normal

weight," she said. “I guess l was a little bit surprised that it was definitely lower. And l was

also surprised that the lower rates of obesity didn't seem to differ from normal weight."

    But Flegal stresses the difference in death rates appear to be small between normal-

weight people and overweight and mildly obese individuals.

    The finding by Flegal and colleagues have raised new questions about the reliability(可

靠*)of the so-called "body mass index" or BMI, a measurement of body fat as a ratio(比

例，比率)of height to weight, that has become popular in recent years among public health

experts to measure potential health risks.

    But Heymsfield warns that individuals should not conclude that it's okay to put on

extra kilograms, since being at a healthy weight lowers the risk for heart disease and

diabetes.

32. Katherine Flegal feels surprised at the fact that____.

    A. obese people have higher death rates

    B. slightly obese people have lower death rates

    C. obese people tend to die early

    D. death rates have nothing to do with body weight

33. What do we learn from the fifth paragraph?

    A. BMI may not be so reliable.

    B. The study provides further evidence for BMI.

    C. BMI tells nothing about potential health risks.

    D. BMI has been much questioned recently.

34. What can we conclude from the passage'?

    A. It's OK to put on extra weight.

    B. It doesn't matter if you are slightly obese.

    C. Obese people are much healthier.

    D. Body weight has nothing to do with death rates.

35. What topic does the passage mainly deal with?

    A. Technology.    B. Dieting.    C. Health.    D. Death.

【回答】

BABC

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