Scientists fear rising energy bills may lead to an increase in obesity after discovering a link between poorly-heated homes and

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问题     Scientists fear rising energy bills may lead to an increase in obesity after discovering a link between poorly-heated homes and higher body fat.
    Researchers from the University of Stirling’s Behavioral Science Centre set out to explore claims that warm indoor temperatures have contributed to rising obesity levels in winter. Instead, the team found that people who live in well-heated homes are more【C1】______to have low body mass index(BMI)levels while those who keep their heating turned down or off tend to be heavier.
    Dr. Michael Daly, behavioral scientist and senior lecturer, said: "We set out to【C2】______the scientific claims that cooler indoor temperatures help us maintain a healthy weight by【C3】______our bodies to expend more energy through shivering and generating heat through tissues. " In fact, their research suggests people may eat less and burn more energy when residing in a warmer indoor environment.
    The 13-year study, published in the journal Obesity, involved more than 100 000 adults across England. Researchers found【C4】______weight levels among people living in homes heated to above 23°C(73 °F), which【C5】______for about 15 000 of the households studied.
    Dr. Daly said:"As national gas bills continue to rise faster than the rate of inflation, this research suggests the obesity epidemic could【C6】______where heating is turned down below comfortable levels or off for【C7】______periods to cut costs. "
    This is not just about people who live in well-heated homes being in the financial【C8】______to afford more expensive low-calorie foods, exercise classes and sporting activities, and【C9】______finding it easier to maintain a low BMI level. The study took age, gender, social class and other【C10】______into account.
    "The comfortable ambient temperature(环境温度)of 20.3-23°C is where we feel comfortable in our clothes and are neither hot nor cold. At temperatures above this, we expend more energy and we eat less because our appetite is suppressed. " Dr. Daly said.
A)accounted F)inclined K)pushing
B)altogether G)investigate L)reduced
C)decrease H)lengthy M)therefore
D)efforts I)likely N)withdrawing
E)factors J)position O)worsen
【C7】

选项

答案H

解析 形容词辨析题。由空格前的介词for和空格后的名词periods判断,此处是“介词+宾语”的结构,名词periods前需要定语修饰。名词、形容词、动词的现在分词和过去分词都可以作定语修饰名词,但在备选项中,符合句意并能与periods“时期,期间”搭配的只有H)lengthy“长时间的”,故答案为H)。
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