2. 外语
  3. As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor. Plus, we live in a culture that【C1

As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor. Plus, we live in a culture that【C1

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问题     As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor. Plus, we live in a culture that【C1】______to the late-nighter, from 24-hour grocery stores to online shopping sites that never close. It’s no surprise, then, that more than half of American adults don’t get the 7 to 9 hours of shut-eye every night as【C2】______by sleep experts.
    Whether or not we can catch up on sleep—on the weekend, say—is a hotly【C3】______topic among sleep researchers. The latest evidence suggests that while it isn’t【C4】______, it might help. When Liu, the UCLA sleep researcher and professor of medicine, brought【C5】______sleep-restricted people into the lab for a weekend of sleep during which they logged about 10 hours per night, they showed【C6】______in the ability of insulin(胰岛素)to process blood sugar. That suggests that catch-up sleep may undo some but not all of the damage that sleep【C7】______causes, which is encouraging, given how many adults don’t get the hours they need each night. Still, Liu isn’t【C8】______to endorse the habit of sleeping less and making up for it later.
Sleeping pills, while helpful for some, are not【C9】______an effective remedy either. "A sleeping pill will【C10】______one area of the brain, but there’s never going to be a perfect sleeping pill, because you couldn’t really replicate(复制)the different chemicals moving in and out of different parts of the brain to go through the different stages of sleep," says Dr. Nancy Collop, director of the Emory University Sleep Center.
A)alternatively I)negotiated
B)caters J)pierce
C)chronically K)presumption
D)debated L)ready
E)deprivation M)recommended
F)ideal N)surpasses
G)improvements O)target
H)necessarily
【C9】
选项
答案H
解析 该空格位于系动词之后，表语之前，经分析发现，全句意思完整，主要结构齐全，因此判断需要填入副词，综合上下文及空格所处的位置考虑，此处应填入副词necessarily，本句含义为“并不一定是有效的解决方法”。备选项中只剩一个副词necessarily可选。
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