第一篇More Than 8 Hours Sleep Too Much of a Good Thing
1.Although the dangers of too little sleep are widely known，new research suggests that people who sleep too much may also suffer the consequences.
2.Investigators 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 sleepers.
E. Sleep problems of long and short sleepers
3.These findings，which Dr. 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.
4.Previous studies have shown the potential dangers of chronic shortages of sleep——for instance，one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more.
B. Dangers of Habitual shortages of sleep
5.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 fatigue interfere with day-to-day functioning.
A. Keprike’s research tool
6.Kripke 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 noted 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 insomnia 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.
D. A way of overcoming insomnia
1. Paragraph 2 ___. E
2. Paragraph 4___.B.
3. Paragraph 5___. A
4. Paragraph 6___. D
A. Keprike’s research tool
B. Dangers of Habitual shortages of sleep
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 ___. F
6.Long sleepers are reported to be more likely to___. E
7. One of the sleep problems is waking in the middle of the night，unable to___. A
8. One survey showed that people who habitually ___each night have a higher risk of dying. C
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
每晚只需8 个小时，睡眼过多非益事
睡眠不足带来的危害已经广为人知，而一项新的研究表明睡眠过多同样会产生不良后果。
圣地亚哥加利福尼亚大学的研究人员发现在入睡、保持睡眠等方面，每晚睡9 或10 个小时的人比睡8 个小时的人存在更多问题。与8 小时睡眠者相比，每晚仅睡7 个小时的人则表示，他们在入睡及经过一夜睡眠后精力恢复方面有更多的麻烦。
Daniel Kripke 博士在《心身医学》杂志上报告的这些新发现表明，人们如果想晚上休息好，每天留给睡眠的时间只需8 个小reported时。他补充说，对于那些每晚睡8 个小时以上的人们来说，考虑减少在床上度过的时间"也许是个好主意"。不过他又提醒说这还需要进一步的研究证实。
以往的研究证明了长期睡眠缺乏的潜在危机。有报告显示，睡眠经常少于7 个小时的人比睡眠充足者，在特定时期内死亡的概率更高。
而在目前这份报告中，Kripke 考评了一份1004 名成年人参与反馈的睡眠调查问卷。问卷内容涉及每周睡眠时间和各种可能的睡眠，问题，包括半夜惊醒、清晨早醒、无法重新入睡，以及白天疲劳影响日常工作等。
Kripke 发现每晚睡9 - 10 个小时的人比睡8 个小时的人更容易出现各类睡眠问题。在一次访谈中，Kripke 注意到睡眠时间长的人夜间可能难以人眠，正是因为他们睡得太多了。因此他补充说，治疗失眠最好的一种方法就是少睡点。"在床上花的时间过长，醒着的时间就会更多，这是理所当然的。"

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