What Does Lack of Sleep Cause? 【C1】______ (reduce)the amount of sleep students get at night has a direct influence on their【

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问题                     What Does Lack of Sleep Cause?
    【C1】______ (reduce)the amount of sleep students get at night has a direct influence on their【C2】______(perform)at school during the day. According to teachers,【C3】______(element)and high school students who stay up late exhibit more【C4】______(learn)and attention problems. This has been shown by Brown Medical School and Bradley Hospital research. In the study, teachers were not told the amount of sleep students received when completing【C5】______(week)performance reports, yet they rated the students who had received eight hours or less as having the most trouble【C6】______(recall)all the material. Teachers also reported that these students had more difficulty【C7】______(pay)attention. The experiment is the first to ask teachers to report on the effects of sleep【C8】______(deficient)in children. Just staying up late can cause increased academic difficulty and attention problems for otherwise【C9】______(health), well-functioning kids, said Garharn Forlone, the study’ s lead author. So the results provide professionals and parents with a clear message: when a child is having learning and attention problems, the issue of sleep has to be taken into【C10】______(consider). "If we don’t ask about sleep, and try to improve sleep patterns in kids’ struggling academically, then we aren’ t doing our job" , Forlone said. For parents, he said, the message is simple, "getting kids to bed on time is as important as getting them to school on time".
【C8】

选项

答案deficiency

解析 分析本句结构发现,本句空白处连同空白处前的sleep作effects的定语,根据句意可以判断出此空需要填入名词。因此把提示词形容词deficient改成名词deficiency即可。
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