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  3. As it is, sleep is so undervalued that getting by on fewer hours has become

As it is, sleep is so undervalued that getting by on fewer hours has become

游客2023-08-10  40
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 [br] 【C10】
选项
答案 O
解析 该空格位于情态动词will之后，应填入动词原形。综合上下文考虑，可选择target“针对，把……定为目标”，本句含义为“一种安眠药只针对大脑中的一个特定区域”。备选项中其他动词均与上下文语义不符，故排除。
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