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, 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 awake. ”he said.
1. Paragraph 2 ___.
2. Paragraph 4___.
3. Paragraph 5___.
4. Paragraph 6___.
A. Kripke'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 ___.
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
第四部分：阅读理解（每题3分，共45分）
下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案涂在答题卡相应的位置上。
第1篇
Storms Sink Ships
Rescuers have found the bodies of over 130 people killed in two ferry disasters in
Bangladesh. The accidents happened during a storm that hit the country on April 21. Hundreds more are missing or feared dead.
The two ferries sank in different rivers near the capital city of Dhakfi as strong winds and rain hit the South Asian country.
The government has since banned a11 ferries and other boats from traveling at night during the April-May stormy season.
One of the ferries, MV Mitali, was carrying far more people than it was supposed to. About 400 passengers fitted into a space made for just 300, police said. The second ferry carried about 1 00 passengers.
"The number of deaths is certain to rise." said an official in charge of the rescue work. "No one really knows how many people were on board or how many of them survived."
Ferries in Bangladesh don't always keep passenger lists, making it difficult to determine the exact number of people on board.
Besides the ferry accidents, at least 40 people were killed and 400 injured by lightning strikes, falling houses and trees and the sinking of small boats.
Storms are common this time of year in Bangladesh, as are boating accidents. Ferry disasters take away hundreds of lives every year in a nation of 130 million people.
Officials blame these river accidents on a lack of safety measures: too many passengers in boats and not enough checks on weather conditions.
Ferries are a common means of transport in Bangladesh. It is a country covered by about 230 rivers. Some 20, 000 ferries use the nation's Waterways every year. And many of them are dangerously overcrowded.
Since 1977, more than 3 000 people have died in some 260 boating accidents.
词汇：
ferry n. 渡船
waterway n. 水路，水道
Bangladesh：孟加拉国，位于南亚
练习：
1. How many people have been found dead in the two ferry disasters?
A、Over 130.
B、At least 40.
C、About 400.
D) Over 3, 000.
2. The two ferry disasters occurred
A)at noon.
B)in the morning.
C) at night.
D)In the afternoon.
3?How many passengers was MV Mitali designed to carry?
，2017职称英语模拟题卫生C 第二套