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  3. The average British people get six-and-a-half hours’ sleep a night, according to the Sleep Council. It has been known for some t

The average British people get six-and-a-half hours’ sleep a night, according to the Sleep Council. It has been known for some t

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问题     The average British people get six-and-a-half hours’ sleep a night, according to the Sleep Council. It has been known for some time that the amount of sleep people get has,【C1】________declined  over  the  years.
    But【C2】________the average amount of sleep we are getting has fallen, rates of obesity and diabetes have soared. Could the two be connected?
    We wanted to see what the【C3】________would be of increasing average sleep by just one hour. So we asked seven volunteers, who【C4】________sleep anywhere between six and nine hours, to be【C5】________at the University of Surrey’s Sleep Research Centre.
    The volunteers were randomly【C6】________to two groups. One group was asked to sleep for six-and-a-half hours a night, the other got seven-and-a-half hours. After a week the researchers took blood tests and the volunteers were asked to switch sleep【C7】________. The group that had been sleeping six-and-a-half hours got an【C8】________hour, the other group slept an hour less.
    Computer tests designed to measure brain wave activity【C9】________that most of them struggled with mental agility tasks when they had less sleep, but the most interesting results came from the blood tests that were【C10】________.
    Dr Simon Archer and his team at Surrey University were【C11】________interested in looking at the genes that were  switched  on  or  off in  our volunteers【C12】________changes in the amount that we had made them sleep.
    "We found that【C13】________there were around 500 genes that were affected," Archer【C14】________. "Some which were going up, and some which were going down."
    What they discovered is that when the volunteers【C15】________back from seven-and-a-half to six-and-a-half hours’ sleep a night, genes that are【C16】________with processes like immune response and response to stress became more【C17】________The team also saw increase in the activity of genes related to diabetes and risk of cancer. The【C18】________happened when the volunteers added an hour of sleep.
    So the clear【C19】________from this experiment was that if you are getting less than seven hours’ sleep a night and can alter your sleep habits, even one hour more, it could make you【C20】________.
【C11】
选项 A、consistently
B、particularly
C、essentially
D、barely
答案B
解析 本题考查副词修饰形容词interested。根据本题已知句意“西蒙.阿彻博士和他的团队对基因感兴趣”以及后面一段他们有关于基因的发现可知，研究团队对基因的尤为关注，故选B项particularly“特别，尤其”。根据文章第三段可知，该实验只进行两周，时间较为短暂，故不能选用A项consistently“一贯地”这个表长期和习惯性行为的副词。C项essentially“基本上”，常用以修饰论断或事情的正确性。D项barely“几乎不”不合逻辑，因为如果研究团队不感兴趣，就不会有关于基因的发现。
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