题目内容
（请给出正确答案）
A.what
B.that
C.it
D.which
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更多“We had to sleep in our wet clothes, ______ was very uncomfortable.A、whatB、thatC、itD、whi”相关的问题
We had to sleep in our wet clothes,______was most uncomfortable.
A．that
B．it
C．what
D．which
A、This is more than I can promise.
B、She was not without ambition.
C、We had a rather full house tonight.
D、We didn’t have a blink of sleep last two nights.
E、His speech leaves little to be improved.
Lead researcher Bob Stickgold at the Harvard Medical School said, "Sleep helps us draw rules from our experiences. It's like knowing the difference between dogs and cats. even if it's hard to explain. "
The US research team studied how well students remembered connections between words and symbols (象征) , reports New Scientist. They compared how the students performed if they had had a sleep between seeing the words and having the test, and if they had not slept. They found that people were better able to remember lists of related words after a night' s sleep than after the same time spent awake during the day. They also found it easier to remember themes (主题) that the words had in common. But they forgot around one in four more themes if they had been awake. Prof. John Groeger, of Surrey University's Sleep Research Centre, said, "People have been trying for years to fard out what the purpose of sleep is, as we know that only certain parts of it have a restorative (有助恢复的) value. "
" We form. and store huge numbers of experiences in the head every day, and sleep seems to be the way the brain deals with it all. "
The phrase" to sleep on a problem" in Paragraph 1 most likely means to______.
A．pay full attention to a problem
B．wait until later for a decision
C．sleep to forget a problem
D．have difficulty sleeping
D
Scientists say they now have proof to support the old-fashioned advice that it ' s best to sleep on aproblem. They say sleep strengthens the memory and helps the brain organize the masses of infor-mation we receive each day.
Lead researcher Bob Stickgold at the Harvard Medical School said , " Sleep helps us draw rules from our experiences. It' s like knowing the difference between dogs and cats even if it' s hard to explain. "
The US research team studied how well students remembered connections between words and symbols(象征 ) , reports New Scientist. They compared how the students performed if they had had a sleep between seeing the words and having the test, and if they had not slept. They found that people were better able to remember lists of related words after a night' s sleep than after the same time spent awake during the day. They also found it easier to remember themes(主题) that the words had in common. But they forgot around one in four more themes if they had been awake.
Prof. John Groeger, of Surrey University ' s Sleep Research Centre, said, "People have been trying for years to find out what the purpose of sleep is, as we know that only certain parts of it have a restorative (有助恢复的 ) value. "
" We form. and store huge numbers of experiences in the head every day , and sleep seems to be the way the brain deals with it all. "
68. The phrase " to sleep on a problem" in Paragraph l most likely means to _________ .
[A]pay full attention to a problem
[B] wait until later for a decision
[C] sleep to forget a problem
[D] have difficulty sleeping
Soon after entering the confinement cell most subjects went to sleep and slept almost without interruption for ten to twenty-four hours. These are gross estimates for there was nothing by which the subjects could determine the time which had elapsed. We know for certain that one subject slept for nineteen hours but insisted that he had had a nap of less than one hour. According to the monitoring microphone, which was capable of picking up the deep breathing of sleep, it seems more likely that most subjects slept all of the first twenty-four hours.
We felt that so much sleeping in the first day wasted the effects of confinement, so we started placing subjects in SD early in the morning. We reasoned that after a night' s sleep our confined subject would be unable to dissipate(驱散) the effects of SD by sleeping. Such was not the case. As far as we could determine they went to sleep just as quickly and slept just as long as the previous subjects. We then started entering the subjects at midmorning, midday, and midafternoon. As it turned out, it made no difference when during the day and, presumably, during the night we started the confinement; the initial sleep period was always about the same.
We had not expected this extended period of initial sleep. In fact, it had seemed reasonable to expect something of the opposite. SD was a very novel situation for our subjects, and as such, we reasoned, it should have occupied them for some time. I had a similar expectation for astronauts during space flight and was greatly surprised to learn that the Russian astronaut Yuri Gagarin had been able to sleep during his space flight around the earth.
Other effects were also noted. With no real sensations to work on, the brain makes up all sorts of false information. Many people experience vivid dreams and hallucinations (幻觉). When they are finally taken out of the room into the real changing world of light and sound, they are in a very strange state of mind, ready to believe anything and not really able to make decisions.
This passage is mainly about what will happen if sensations were lost.
A．Right
B．Wrong
C．Not mentioned
(29)
A．We had plenty of extra rooms for Tom to sleep in.
B．Tom wanted his own room, not an extra one.
C．We wanted to give Tom a room but he refused it.
D．We have no extra room for Tom to sleep here.
Based on the results, the researchers concluded the rats were dreaming about the maze, (5)_____ re viewing what they had learned while awake to (6)_____ the memories.
Researchers have long known that animals go (7)_____ the same types of sleep phases that people do, including rapid-eye-movement (REM) sleep, which is when people dream. But (8)_____ the occasional twitching, growling or barking that any dog owner has (9)_____ in his or her sleeping pet, there's been (10)_____ direct evidence that animals (11)_____. If animals dream, it suggests they might have more (12)_____ mental functions than had been (13)_____.
"We have as humans felt that this (14)_____ of memory—our ability to recall sequences of experiences—was something that was (15)_____ human," Wilson said. "The fact that we see this in rodents (16)_____ suggest they can evaluate their experience in a significant way. Animals may be (17)_____ about more than we had previously considered."
The findings also provide new support for a leading theory for (18)_____ humans sleep—to solidify new learning. "People are now really nailing down the fact that the brain during sleep is (19)_____ its activity at least for the time immediately before sleep and almost undoubtedly using that review to (20)_____ or integrate those memories into more usable forms," said an assistant professor of psychiatry at Harvard Medical School.
A．related
B．retained
C．released
D．relieved
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and eight hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don't even realize they're doing it." says Dr. David. "They think they are okay, because they can get by on 6.5 hours, when they really need 7.5, eight or even more to feel ideally vigorous."
Perhaps the most merciless robber of sleep, researchers say, is the complexity of the day. Whenever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his program. "In our society, you're considered dynamic if you say you only need 5.5 hours' sleep. If you've got to sleep 8.5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We've found that if you're in sleep deficit, performance suffers," says Dr. David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate."
People in the 18th and 19th centuries used to sleep about 9.5 hours a night because they had ______.
A．no drive or ambition
B．no electric light
C．the best sleep habits
D．nothing to do in the evening
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don't even realize they're doing it," says Dr David. "They think they're okay because they can get by on 6.5 hours, when they really need 7.5, 8 hours or even more to feel ideally vigorous."
Perhaps the most merciless rubber of sleep, researchers say, is the complexity of the day. When ever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his programme. "In our society, you're considered dynamic if you say you only need 5.5 hours' sleep. If you've got to get 8.5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We've found that if you're in sleep deficit, performance suffers," says Dr David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate."
People in the 18th and 19th centuries used to sleep about 5 hours a night because they had ______.
A．no drive and ambition
B．no electric lighting
C．the best sleep habits
D．something to do in the evening
（英语类学生必做）
Sleep is important to us because it helps restore organs and tissues in our body. But how much sleep do we actually need？
For most of us, eight hours seems to be about the right amount. Yet we know that there are many people who get 【61】 perfectly with less sleep, and some who may need 【62】 A great deal depends on the 【63】 we live. But a good general rule 【64】 is to sleep as long as we have to in order to feel happy and be able to work 【65】 our best when we awaken.
There are actually different 【66】 of sleep. There is a deep sleep and a shallow sleep. In a shallow sleep our body does not get the same kind of rest it gets in a 【67】 sleep, 【68】 after eight hours of a shallow sleep we may still feel tired. But a short, deep sleep can be very 【69】 Alexander—the Great Emperor was able to get a deep sleep 【70】 he needed it. Once, during the night before an important battle, he remained 【71】 longer than anyone else. 【72】 he wrapped himself in a cloak and 【73】 down on the earth. He slept so 【74】 that his generals had to wake him three times for him to give the 【75】 to attack!
Normally when we go to sleep, our " sleep center" blocks off nerves so that 【76】 our brain and body go to sleep. 【77】 prevents us from wanting to do anything, and the other 【78】 our internal organs and limbs go to sleep. 【79】 sometimes only one goes to sleep and the other does not. A very tired soldier can sometimes 【80】 asleep (brain sleep) and keep on marching, because his body is not asleep.
(86)
A．across
B．away
C．along
D．over
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