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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.

　　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.

　　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 chronic shortages of sleep 一 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.

　　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.

　　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 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.

　　23. Paragraph 2 ___.

　　24. Paragraph 4___.

　　25. Paragraph 5___.

　　26. Paragraph 6___.

　　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

　　27.To get a good night’s rest，people may not need to ___.

　　28.Long sleepers are reported to be more likely to___.

　　29. One of the sleep problems is waking in the middle of the night，unable to___.

　　30. 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：23-30EBADFEAC

　　Stress Level Tied to Education Level

　　People with less education suffer fewer stressful days, according to a report in the current issue of the Journal of Health and Social Behavior.

　　However, the study also found that when 1ess-educated people did suffer stress it was more severe and had a larger impact on their health.

　　From this, researchers have concluded that the day-to-day factors that cause stress are not random.Ⅵr11ere you are in society determines the kinds of problems that you have each day, and how well you will cope with them.

　　The research team interviewed a national sample of 1.03 1 adults daily for eight days about their stress level and health.People without a high school diploma reported stress on 30 percent of the study days，people with a high school degree reported stress 38 percent of the time，and people with college degrees reported stress 44 percent of the time.

　　‘Less advantaged people are less healthy on a daily basis and are more likely to have downward turns in their health。’”lead researcher Dr.Joseph Grzywacz， of Wake Forest University Baptist Medical Center, said in a prepared statement. “The downward turns in health were connected with daily stressors.and the effect of daily stressors on their health is much more devastating for the less advantaged.” Grzywacz suggested follow-up research to determine why less-educated people report fewer days of stress when it is known their stress is more acute and chronic. “If something happens every day, maybe it’snot seen as a stressor”Grzywacz says.“Maybe it is just 1ife.”

　　词汇：

　　stressful adj.紧张的;压力重的

　　diploma n.毕业文凭，毕业证书

　　stressor n.紧张刺激物

　　devastating adj.毁灭性的

　　follow-up n.(对病人的)随访

　　31. Stress level is closely related to

　　A)family size.

　　B)social status.

　　C)body weight.

　　D)work experience.

　　32.The 1.03 1 adults were interviewed

　　A)on adaily basis for 8days.

　　B)during one of eight days.

　　C)all by Grzywacz.

　　D)in groups.

　　33. Which group reported the biggest number of stressful days?

　　A)People without any education.

　　B)People without high school degrees.

　　C)People with high school degrees.

　　D)People with college degrees.

　　34.The less advantaged people are，the greater

　　A)the impact of stress on their health is.

　　B)the effect of education on their health is

　　C)the level of their education is.

　　D)the degree of their health concern is.

　　35.Less—educated people report fewer days of stress possibly because

　　A)they don’t want to tell the truth.

　　B)they don’t want to face the truth.

　　C)stress is too common a factor in their life.

　　D their stress is more acute.