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More Than 8 Hours Sleep Too Much of a Good Thing
Although the dangers of too little sleep are widely known，new research suggests that people who sleep too much may also suffer the consequences．
Investigators1 at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep，as well as a number of other sleep problems，than people who sleep 8 hours a night．People who slept only 7 hours each night also said they had more trouble falling asleep and feeling refreshed after a night’s sleep than 8-hour sleepers2．
These findings, which DL Daniel Kripke reported in the journal Psychosomatic Medicine, demonstrate that people who want to get a good night’s rest may not need to set aside。more than 8 hours a night．He added that“it might be a good idea'’for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed, but cautioned that more research is needed to confirm this．
Previous studies have shown the potential dangers of chronic3 shortages of sleep一for instance, one report demonstrated that people who habitually5 sleep less than 7 hours each night have a higher risk of dying within a fixed6 period than people who sleep more．
For the current report，Kripke reviewed the responses of 1，004 adults to sleep questionnaires，in which participants indicated how much they slept during the Week and whether they experienced any sleep problems．Sleep problems included waking in the middle of the night，arising early in the morning and being unable to fall back to sleep，and having fatigue7 interfere8 with day-to-day functioning．
KriDke found that people who slept between 9 and 10 hours each night were more likely to report experiencing each sleep problem than people who slept 8 hours．In an interview, Kripke noted9 that long sleepers may struggle to get rest at night simply because they spend too much time in bed．As evidence，he added that one way to help insomnia10 is to spend less time in bed．“It stands to reason that if a person spends too long a time in bed, then they’ll spend a higher percentage of time awake．”he said．
1. Paragraph 2 ___.
2. Paragraph 4___.
3. Paragraph 5___.
4. Paragraph 6___.
A. Keprike’s research tool
C. Criticism on Kripke’s report
D. A way of overcoming insomnia
E. Sleep problems of long and short sleepers
F. Classification of sleep problems
5．To get a good night’s rest，people may not need to ___.
6．Long sleepers are reported to be more likely to___.
7． One of the sleep problems is waking in the middle of the night，unable to___.
8. One survey showed that people who habitually ___each night have a higher risk of dying．
A fall asleep again ．
B become more energetic the following day
C sleep less than 7 hours
D confirm those serious consequences
E suffer sleep problems
F sleep more than 8 hours
参考答案：
More Than 8 Hours Sleep Too Much of a Good Thing
1. E： Investigators ...found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling, than...该句回应了文章的主题—睡眠时间太长不是好事；对应被选项发现只有E和F与这个内容有关系，但段落最后一句中又提到了睡眠不足的人的问题，因此判断E是答案（睡眠长和睡眠短的人所面临的睡眠问题）。
2。B．分析：段落的结构-- Previous studies have shown the potential dangers of chronic shortages of sleep一for instance..表明了该段的中心是讲述“长期睡眠不足的潜在危险”
3. A． 分析：对于该段落答案的选择具有一定的迷惑性，A和F容易相互成为干扰项，但由于段落中提到的“睡眠问题”是属于问卷上要回答的内容，是和Keprike的直接研究有关，所以判断A是答案。同时猜测F可能是干扰项 4. D： 段落中出现的Kripke found， Kripke noted和he added表明“Kripke的观点和态度应该是该段的中心”，对比被选项排除C（段落中没有出现批评的话语）和F（段落中没有具体提到睡眠问题的表现形式），而段落最后第2句提到了克服失眠的方法—少花时间在床上，与D呼应。 5．F．分析：根据搭配结构need to do sth.判断所有选项都在语法上合适。借助搭配句意：“为了获得晚上好的休息，人们没有必要。。”判断F（睡眠超过8小时）。 6．E．分析：借助搭配句意：“睡眠时间长的人根据报道更有可能。。”，并结合文章主题—睡眠时间长不是好事情，判断E合适。也可借助文章中的相关内容（利用题干中的Long sleepers和more likely 作为答案线索）：KriDke found that people who slept between 9 and 10 hours each night were more likely to report experiencing each sleep problem than people who slept 8 hours． 7． A． 分析：借助搭配句意：“其中的一个睡眠问题是在午夜醒来，不能。。”，直接判断A（再次入睡）合适。
8. C．分析：借助搭配句意：“一项调查显示那些习惯性每晚...的人有更高的死亡风险。” 点击  收听单词发音
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