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When you first drift off into slumber, your eyes will be immobilized by sleep.
A．Right
B．Wrong
C．Not mentioned
答案
更多“When you first drift off into slumber, your eyes will be immobilized by sleep.A．RightB．Wro”相关的问题
第1题
During both light and deep sleep, the muscles in your body are relaxed but capable of movement. As you slip into REM sleep, a very odd thing occurs -- most of the voluntary muscles in your body become paralyzed. Although your brain shows very rapid bursts of neural activity during REM sleep, your body is incapable of moving. REM sleep is accompanied by extensive muscular inhibition.
On the part of an average sleeper, there______of sleep in cycles.
A．is one stage
B．are two stages
C．are six stages
D．are four stages
第2题
第3题
Sleep
Sleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves predominating for the first few minutes. This is called stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain waves will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids as if you were looking at something occurring in front of you. This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep. It is during REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep-only to rise once again to the surface of near consciousness some 80 minutes later.
Every stage of sleep occur in cycles.
A．Right
B．Wrong
C．Not mentioned
第4题
You do not remain at this deep fourth stage all night along, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids as if you were looking at something occurring in front of you. This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep. It is during REM sleep that most dreams seem to occur.
Provided that you do not wake up during the first REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep — only to rise once again to the surface of near consciousness some 80 minutes later.
Which of the following does the passage mainly discuss？
A．Scientific methods of studying sleep.
B．Why humans require sleep.
C．The phases of sleep.
D．Why dreams occur during REM sleep.
第5题
Sleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into slumber (安睡), your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing were slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves predominating for the first few minutes. This is called stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain waves will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids (眼皮) as if you were looking at something occurring in front of you. This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep. It is during REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep — only to rise once again to the surface of near consciousness some 80 minutes later.
The stages of sleep take on ____
A) an irregular aspect.
B) a regular aspect
C) a punctual aspect
D) a similar aspect
本题为单选题，请给出正确答案及解析，谢谢！
第6题
根据下列材料，请回答题
Sleep
Sleep is part of a person’s daily activity cycle．There are several different stages of sleep．And they too occur in cycles_____（46）When you first drift off into slumber，your eyes will roll about a bit，your temperature will drop slightly，your muscles will relax，and your breathing will slow and become quite regular．Your brain waves slow down a bit t00，with the alpha rhythm of rather fast waves predominating for the first few minutes_____ （47）For the next half hour or so，as you relax more and more，you will drift down through stage 2 and stage 3 sleep．_____ （48）Then about 40 to 60 minutes after You lose consciousness you will have reached the deepest sleep of all．Your brain waves will show the large slow waves that are known as the delta rhythm．
This is stage 4 sleep．You do not remain at this deep fourth stage all night long．but instead about 80 minutes after you fall into slumber，your brain activity level will increase again slightly．_____ （49）Your eyes will begin to dart around under your closed eyelids as if you were l00-king at something occurring in front of you _____ （50）It is during REM sleep period，your body will soon relax again，your breathing will grow slow and regular once more，and you will slip gently back from stage l to stage 4 sleep—only to rise once again to the surface of near consciousness some 80 minutes later．
回答（46）题 查看材料
A.The delta rhythm will disappear，to be replaced by the activity pattern of brain waves．
B.If you are an average sleeper，your sleep cycle is as follows．
C.In stage 4 sleep people tend to dream．
D.The lower your stage of sleep，the slower your brain waves will be．
E.This period of rapid eye movement lasts for some 8 to 1 5 minutes and is called REM sleep．
F.This is called stage l sleep．
第7题
Questions 26 to 30 are based on the following passage:
Sleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into slumber (安睡), your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing were slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves predominating for the first few minutes. This is called stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain waves will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep.
You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids (眼皮) as if you were looking at something occurring in front of you. This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep. It is during REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep — only to rise once again to the surface of near consciousness some 80 minutes later.
26.The stages of sleep take on ____.
A) an irregular aspect. B) a regular aspect C) a punctual aspect D) a similar aspect
27.Stage 4 sleep lasts ____.
A) about 80 minutes
B) about 40 60 minutes
C) about 30 munutes
D) about 20 40 minutes
28.The brain waves are the slowest during ____.
A) stage 1 C) stage 4 B) stage 2 and stage 3 D) REM sleep
29.In the second paragraph the word “dart” means ____.
A) glare B) move rapidly or suddenly C) stop moving D) gaze
30.One of the features of REM sleep is that ____.
A) there are large slow waves, though rapid for the first few minutes
B) you have the deepest sleep
C) there are no brain waves
D) the brain waves are a little fast and the brain becomes a little active
第8题
根据材料请回答 36～40 题
Sleep
Sleep is part of your daily activity cycle, but there are several differenttypes or stages of sleep and they too occur in cycles.If you are an average sleeper, your sleep cycle will go something like this： When you first drift off into sleep your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular.Your brain waves slow down a bit too.This is called Stage 1 sleep.
For the next half hour or so, as you relax more and more, you will drift down through Stage 2 and Stage 3 sleep.The lower your stage of sleep, the slower your brain waves will be.Then, about 40-60 minutes after you lose consciousness, you will have reached the deepest sleep of all.Your brain waves will show the delta rhythm.This is Stage 4 sleep.
You may think that you stay at this deep fourth stage all the rest of the night, but that turns out not to be the case.Instead, about 80 minutes after you fall into sleep your activity cycle wilt increase slightly.The delta rhythm will disappear, to be replaced by the activity pattern of brain waves.Your eyes will begin to move around under your closed eyelids as if you were looking at something occurring in front of you.This period of Rapid Eye Movements lasts for some 8-15 minutes and is called REM sleep.During both light and deep sleep, the muscles in your body are relaxed but capable of movement.However, as you slip into REM sleep, a very odd thing occurs.Most of the voluntary muscles(随意肌)in your body become paralyzed(麻痹).Although your brain shows very rapid bursts of neural activity during REM sleep, your body is incapable of moving.
第 36 题 The lower the stage of sleep
A．the greater the alpha waves will be
B．the slower the brain waves will appear
C．the slower the activity pattern of the brain
D．the deeper the sleeper gets to unconsciousness
第9题
听力原文： No one knows exactly why we sleep. But scientists have learned a lot about how we sleep. From sleep experiments, scientists have learned that there are four different stages of sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call this kind of sleep dozing. Scientists call it Stage One sleep. Next, if you are not awakened, you drift into a deeper sleep. Your pulse and breathing become even slower than they were during Stage One sleep. But you can still be awakened quite easily. If you take a cat nap, you probably will not get any further than this stage of sleep, which is called Stage Two.
If you sleep longer than about twenty minutes, you go into the third stage of sleep. Your body is very relaxed. It would take a loud noise to wake you up.
You have probably heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during Stage Four. This is the deepest kind of sleep. If someone wakes you up during stage four, you might feel very confused. It might take you a few minutes to get used to being awake.
(30)
A．Reasons for People's Sleeping.
B．Four Stages of Sleep.
C．Reasons for sleepwalking.
D．A Sleep Experiment.
第10题
W: Yes, it was fantastic. Now I know why it is listed together with the Nile river as one of the great natural wonders of the world. Here, want to see the picture I took？
M: Oh what a view! It is even bigger than I had imagined. I remember reading about the Great Canyon and I think it said that it was formed suddenly when the earth crust split open during an earthquake.
W: Well, not that quickly. Look, here is the picture of th Colorado river. See way down at the bottom of the canyon, that river and its tributaries have been wearing the canyon floor away for ten million years.
M: Then the canyon is the result of soil erosion. I'll bet geologists have made some interesting discoveries there.
W: Not only the geologists, archaeologists have also found the bones of extinct animals in caves in the canyon walls. In a cave one hundred and forty feet above the river, they found drift wood that dated back as far as thirty-seven thousand years.
M: That means the river must have been a hundred and forty feet higher up when it carried the drift wood into the cave.
W: It's very possible, but of course who knows. The Great Canyon is full of mysteries. Wouldn't you like to go to Arizona some day？
M: You bet I would.
Where has the woman been？
A．To Colonado.
B．To Anzona.
C．To the Nile River.
D．To the Museum of Natural History.
