下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第2、4、5、6
段每段选择1个最佳标题；(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 More Than 8 Hours Sleep Too Much of a Good
Thing Although the dangers of too little sleep
are widely known, a 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, 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. 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 a
wake. " he said.
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 Paragraph 5 ______.