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When We Are Asleep Everyone dreams, but some people never recall their dreams, or do so ve

When We Are Asleep

Everyone dreams, but some people never recall their dreams, or do so very rarely. Other people always wake up with vivid recollections (记忆) of their dreams, though they forget them very quickly. In an average night of eight hours' sleep, an average adult will dream for around one hundred minutes, probably having three to five dreams, each lasting from ten to thirty minutes.

Scientists can detect when someone is having a dream by using an instrument which measures the electrical waves in the brain. During dreaming, these waves move more quickly. Breathing and pulse rate also increase, and there are rapid eye movements under the lids, just as though the dreamer were really looking at moving objects. These signs of dreaming have been detected in all mammals (哺乳动物) studied, including dogs, monkeys, cats, and elephants, and also some birds and reptiles (爬行动物). This period of sleep is called the “D” state for around 50% of their sleep; the period reduces to around 25% by the age of 10.

Dreams take the form. of stories, but they may be strange and with incidents not connected, which make little sense. Dreams are seldom without people in them and they are usually about people we know. One estimate says that two-thirds of the “cast” of our dream dramas are friends and relations. Vision seems an essential part of dreams, except for people blind from birth. Sound and touch are senses also often aroused, but smell and taste are not frequently involved. In “normal” dreams, the dreamer may be taking part, or be only an observer. But he or she cannot control what happens in the dream.

However, the dreamer does have control over one type of dream. This type of dream is called a “lucid”(清醒的) dream. Not everyone is a lucid dreamer. Some people are occasional lucid dreamers. Others can dream lucidly more or less all the time. In a lucid dream, the dreamer knows that he is dreaming.

Some people dream but cannot remember their dreams.

A．Right

B．Wrong

C．Not mentioned

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更多“When We Are Asleep Everyone dr…”相关的问题

第1题

So, in the evening when the body temperature is beginning to fall, there is a natural ten______ to f

all asleep and in the morning, when the temperature begins to rise rapidly, we are most likely to wake up.

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第2题

We can infer from the text that ______.A．all living things sleepB．some people can wake up

We can infer from the text that ______.

A．all living things sleep

B．some people can wake up on time without being called

C．old people usually sleep nine or eleven hours a day

D．we are sure that our minds are not going when we are asleep

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第3题

Air is all around us. It is around us when we walk and play. From the moment we are born,

air surrounds us. When we sit down, it is around us. When we go to bed, air is also around us. No matter where we are on earth, air surrounds us. We live in air.All living things need air. Living things cannot live without air. We can go without food or water for a few days, but we cannot live for more than a few minutes without air. When we are working or running, we need more air. So we breathe faster than usual. When we are asleep, we need less air.

People can live without food or water for______.

A．a few months

B．a few weeks

C．a few days

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第4题

It must have been after two o'clock in the morning when the last guests【C1】______their lea

ve, and although we had enjoyed their【C2】______, my wife and I were quite thankful to shut the door【C3】______them. We left all the dirty dishes and glasses【C4】______, and after opening a few windows to let some fresh air in and the smell of【C5】______out, we climbed into bed and fell asleep.

I【C6】______asleep for more than half an hour when I awoke with a strong smell of smoke in my nostrils(鼻孔).【C7】______half asleep, I【C8】______into the sitting room, and there, through【C9】______clouds of smoke, I saw that one of the curtains was【C10】______fire. I should have closed the windows then without delay, but【C11】______I tried to beat out the flames with a folded newspaper.【C12】______this failed I hastened into the kitchen to snatch a bucket(木桶)and【C13】______it with water. At the same time I shouted to Barbara, who【C14】______dialed 999 to call the brigade【C15】______coming to my aid. We had to work at top speed carrying buckets of water from the kitchen to prevent the flames,【C16】______by the breeze from the windows, from spreading. We【C17】______to extinguish the fire but we managed to keep it【C18】______in check until the arrival of the firemen. Fortunately, they promptly came and they had little difficulty【C19】______out the flames.

For most of the【C20】______of the day we worked hard.

【C1】

A．asked

B．took

C．were on

D．waited for

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第5题

Itmusthave been after two o'clockin the morning when the last guests【C1】______their leave,

It must have been after two o'clockin the morning when the last guests【C1】______their leave, and al though we had enjoyed their【C2】______my wife and I were quite thankful to shut the door【C3】______them. We【C4】______all the dirty dishes and glasses as they were, and after opening a few windows to let some fresh air in and the smell of stale【C5】______out, we climbed into bed and fell asleep. I could not have been【C6】______for more than half an hour when I woke with a【C7】______smell of smoke in my nose. Still haft asleep, I【C8】______into the sitting room, and, there through【C9】______clouds of smoke, I saw that one of the curtains was【C10】______fire. I should have closed the windows then without delay, but【C11】______I tried to beat out the flames with a folded newspaper.【C12】______this failed I hastened into the kitchen to【C13】______a bucket and fill it with water. At the same time I shouted to Barbara, who【C14】______dialed 999 to Summon the fire brigade【C15】______coming to my aid. We had to work at top speed carrying buckets of water from the kitchen to prevent the flames,【C16】______by the breeze from the windows, from spreading. We were unable to【C17】______out the fire but we managed to keep it【C18】______in check until the arrival of the firemen. Fortunately, they arrived promptly and they had little difficulty【C19】______putting out the flames. For most of the【C20】______of the day we worked hard.

【C1】

A．asked

B．took

C．got

D．waited

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第6题

It must have been after two o'clock in the morning when the last guests【B1】their leave, an

d although we had enjoyed their【B2】, my wife and I were quite thankful to shut the door【B3】them. We【B4】all the dirty dishes and glasses as they were, and after opening a few windows to let some fresh air in and the smell of stale【B5】out, we climbed into bed and fell asleep. I could not have been【B6】for more than half an hour when I woke with a【B7】smell of smoke in my nose. Still half asleep, I【B8】into the sitting room, and, there through【B9】clouds of smoke, I saw that one of the curtains was【B10】fire. I should have closed the windows then without delay, but【B11】I tried to beat out the flames with a folded newspaper.【B12】this failed I hastened into the kitchen to【B13】a bucket and fill it with water. At the same time I shouted to Barbara, who【B14】dialed 999 to summon the fire brigade【B15】coming to my aid. We had to work at top speed carrying buckets of water from the kitchen to prevent the flames,【B16】by the breeze from the windows, from spreading. We were unable to【B17】out the fire but we managed to keep it【B18】in check until the arrival of the firemen. Fortunately, they arrived promptly and they had little difficulty【B19】putting out the flames. For most of the【B20】of the day we worked hard.

【B1】

A．asked

B．took

C．got

D．waited

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第7题

阅读以下文章，选出 26～45 题的最佳答案： If you are worried about things and are under a

阅读以下文章，选出 26～45 题的最佳答案：

If you are worried about things and are under a lot of stress at work or school，then you are probably not sleeping well．Worry can keep you awake，tossing and _1_ in bed until the early hours of the morning when you eventually _2_ asleep ．When you wake up ,you don’t feel＿3＿,but tired and Worn out and _4_ to face a new day．

Dr Henry winkle ,in a recent newspaper article _5_ Stress and Sleep , _6_ that stress and lack of sleep are directly _7_ .Dr．Winkle says ,“the more we worry ,the _8_ we sleep ,the more we are unable to deal with _9_ .”“If we can find a way to get a good night ’s sleep ,”he _10_ ,“we can often find the _11_to deal with what’s worrying us．”

So ,what is a good night’s sleep ？ Research shows that the amount of sleep which people need in order to keep healthy _12_ a lot . Seven hours is about the average amount, _13_ strangely enough ,sleeping longer often gives you a headache _14_ Of making you feel more refreshed Dr．Winkle believes that preparing for sleeping is important．

People who work late should try to give themselves a short ＿15＿ and do something restful before going to bed．This could be watching TV or listening to music．Doing some exercise＿16＿ in the day should help you to feel physically as well as ＿17＿ tired．A bedtime drink can also help，but coffee or tea should be avoid． deed as they contain caffeine(咖啡因)and will keep you＿18＿．“When you put the light＿19＿”Dr．Winkle says，“concentrate on relaxing your muscles．Working slowly up from your feet，and you’11 be asleep _20_ you know it．”

第 26 题

阅读以下文章，选出 26～45 题的最佳答案： If you are worried about t

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第8题

Why is it so difficult to fall asleep when you are overtired？ There is no one answer that【

C1】______ to every individual. But many people fail to note the【C2】______ between fatigue — physical tiredness — and sleepiness, the inability to【C3】______ awake. It is possible to feel tired【C4】______ and still be unable to fall asleep, because while your body may be exhausted, you dont feel【C5】______. To fall asleep, you need adequate time to unwind,【C6】______ you feel fatigued, not so easy to【C7】______ "turn off." According to Carl E. Hunt, director of the National Center on Sleep Disorders Research in Bethesda, Maryland, most people do not allow themselves【C8】_____ deceleration. Lack of sleep【C9】______ matters even more. Experts say adults need at least 7 to 8 hours of sleep a night to【C10】______ properly. When you get less sleep than【C11】______ on consecutive nights, you begin to accrue "sleep debt".【C12】______ sleep debt increases and functionality decreases, your body experiences a stress response and begins to release adrenaline. Now a vicious【C13】______ has been created: You experience the feeling of being more and more tired,【C14】______ your body is increasingly stimulated. Power sleeping for more hours on weekends is only a【C15】______ solution. "There is no【C16】______ for getting a good nights sleep on a【C17】______ basis," says Hunt. Most of us,【C18】______, dont get the sleep we need. According to the 2002 National Sleep Foundation, Americans sleep a(n)【C19】______ of 6.9 hours per night during the week, and 58 percent of adults experience【C20】______ of insomnia a few nights a week or more.

【C1】

A．adapts

B．adopts

C．applies

D．conduct

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第9题

Sleep ,as we know, is important to us because it helps restore tired 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.【C1】______we know that there are many people who get【C2】______perfectly with less sleep, and some who may even need【C3】______. A great deal depend on the【C4】______we live. But a good general rule to【C5】______is to sleep as long as we have to in order to feel happy and be able to work【C6】______our best when we awaken.

There are actually different【C7】______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 deep sleep, so that after eight hours of a【C8】______sleep we may still feel tired. But a short, deep sleep can be very【C9】______.

Alexander the Great was able to get a deep sleep【C10】______he needed it. Once, during the night before an important battle, he remained【C11】______much longer than anyone else.【C12】______he wrapped himself in a cloak and【C13】______down on the-earth. He slept so【C14】______that his generals had to wake him three times to give the【C15】______to attack!

Normally when we go to sleep, our!' sleep center" blocks off nerves so that【C16】______our brain and body go to sleep.【C17】______prevents us from wanting to do anything. And the other【C18】______our internal organs and limbs go to sleep.【C19】______sometimes only one goes to sleep and the other does not. A very tired soldier can sometimes【C20】______asleep(brain sleep)and keep on marching, because his body is not asleep.

【C1】

A．Yet

B．Hence

C．Anyway

D．Besides

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第10题

根据材料回答下列各题： If you are worried about things and are under a lot of stress at wor

k or school, then you are probably not sleeping well. Worry can keep you awake, tossing and 26 in bed until the early hours of the morning when you eventually 27 asleep. When you wake up, you don' t feel 28 , but tired and worn out and 29 to face a new day. Dr. Henry Winkle, in a recent newspaper article 30 Stress and Sleep, 31 that stress and lack of sleep are directly 32 . Dr. Winkle says, "the more we worry, the 33 we sleep, the more we are unable to deal with 34 If we can find a way to get a good night' s sleep," he 35 ,"we can often find the 36 to deal with what' s worrying us. " So, what is a good night' s sleep？ Research shows that the amount of sleep which people need in order to keep healthy 37 a lot. Seven hours is about the average amount, 38 strangely enough, sleeping longer often gives you a headache 39 of making you feel more refreshed. Dr. Winkle believes that preparing for sleeping is important. People who work late should try to give themselves a short 40 and do something restful before going to bed. This could be watching TV or listening to music. Doing some exercise 41 in the day should help you to feel physically as well as 42 tired. A bedtime drink can also help, but coffee or tea should be avoided as they contain caffeine(咖啡因) and will keep you. 43 . "When you put the light 44 ," Dr.Winkle says, "concentrate on relaxing your muscles. Working slowly up from your feet, and you'll be asleep 45 you know it. "

A.turning

B.rolling

C.twisting

D.rotating

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