摘要:A. feel B. heart C. mind D. brain

网址:http://m.1010jiajiao.com/timu3_id_3152754[举报]

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the day. The rest that you get while sleeping makes it possible for your body to prepare itself for the next day.

There are four levels of sleep, each being a little deeper than the one before. As you sleep, your body relaxes (放松) little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts (变换) back and forth from one level of sleep to the other.

Though your mind slows down, you will dream from time to time. Scientists who study sleep point out that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.

If you have trouble falling asleep, some people recommend (建议) breathing very slowly and very deeply. Other people believe that drinking warm milk will make you drowsy. There is also an old suggestion that counting sheep will put you to sleep.

1.The text suggests that not getting enough sleep might make you _____.

A.suffer from poor health                  B.feel tired and nervous

C.dream more often                       D.breathe quickly

2.During REM, _____.

A.you move restlessly

B.you start dreaming

C.your mind stops working

D.your eyeballs move quickly

3.The underlined word "drowsy" in the last paragraph probably means _____.

A.lazy              B.sleepy            C.relaxed           D.pleased

4.A good title for this text might be _____.

A.Dreams                               B.Sleep

C.Good Health                           D.Work and Rest

 

查看习题详情和答案>>

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the day. The rest that you get while sleeping makes it possible for your body to prepare itself for the next day.

There are four levels of sleep, each being a little deeper than the one before. As you sleep, your body relaxes (放松) little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts (变换) back and forth from one level of sleep to the other.

Though your mind slows down, you will dream from time to time. Scientists who study sleep point out that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.

If you have trouble falling asleep, some people recommend (建议) breathing very slowly and very deeply. Other people believe that drinking warm milk will make you drowsy. There is also an old suggestion that counting sheep will put you to sleep.

1.The text suggests that not getting enough sleep might make you _____.

A.suffer from poor health

B.feel tired and nervous

C.dream more often

D.breathe quickly

2.During REM, _____.

A.you move restlessly

B.you start dreaming

C.your mind stops working

D.your eyeballs move quickly

3.The underlined word "drowsy" in the last paragraph probably means _____.

A.lazy              B.sleepy            C.relaxed           D.pleased

4. A good title for this text might be _____.

A.Dreams                               B.Sleep

C.Good Health                           D.Work and Rest

 

查看习题详情和答案>>

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the day. The rest that you get while sleeping makes it possible for your body to prepare itself for the next day.

There are four levels of sleep, each being a little deeper than the one before. As you sleep, your body relaxes (放松) little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts (变换) back and forth from one level of sleep to the other.

Though your mind slows down, you will dream from time to time. Scientists who study sleep point out that when dreaming occurs (发生), your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.

If you have trouble falling asleep, some people recommend (建议) breathing very slowly and very deeply. Other people believe that drinking warm milk will make you drowsy. There is also an old suggestion that counting sheep will put you to sleep.

1.The text suggests that not getting enough sleep might make you     .

A.suffer from poor health          B.feel tired and nervous

C.dream more often            D.breathe quickly

2.During REM,     .

A. you move restlessly            B. you aren’t dreaming 

C. your mind stops working          D. your eyeballs move quickly

3.The underlined word “drowsy” in the last paragraph probably means     .

A.lazy    B.sleepy     C.relaxed     D.pleased

4.A good title for this text might be     .

A. Dreams    B.Sleep     C.Good Health     D.Work and Rest

 

查看习题详情和答案>>

完形填空

 Some people have very good memories, and can easily learn quite long poems by heartThere are ___1___ people who can only remember things ___2___ they have read them again and again

 Charles Dickens, the famous ___3___ author, said that he could walk ___4___ any long street in London and then ___5___ the name of every shop he had ___6___Many ___7___ men of the world have had wonderful memories

 A good memory is a great ___8___ in learning a languageEverybody learns his own language ___9___ remembering ___10___ he learns when he is a small childSome children --- like boys and girls ___11___ go abroad with their parents --- seem to learn two languages almost as ___12___ as one

 The human mind is rather like a camera, but it ___13___ photos not only of what we see but also ___14___ what we feel, hear, smell and tasteWhen we take a real photo ___15___ a camera, there is much to do ___16___ the photo is finished and ready to be shown to our friendsIn the same ___17___ there is much work to be done before we can make a picture remain forever in the ___18___

 Memory can be looked ___19___ as the diary that we all carry ___20___ with us

                                                                                                                                                                                                                                                                                                           

(1) Aothers

  

Bthe other

  

   Cother

Danother

[  ]

(2) Abefore

  

Bsince

  

   Cuntil

Dwhen

[  ]

(3) AFrench

  

BEnglish

  

   CAmerican

DGerman

[  ]

(4) Aaround

  

Bin

  

   Con

  

Ddown

  

[  ]

  

(5) Atell

  

Bsay

  

   Cgive

  

Dspeak  

  

[  ]

  

(6) Apassed

  

Btravelled

  

   Cgone

Dcome

[  ]

(7) Abig

  

Bgreat

  

   Clarge

Dgood

[  ]

(8) Askill

  

Bart

  

   Cadvice

Dhelp

[  ]

(9) Athrough

  

Bin

  

   Cby

Dwith

[  ]

(10)Awhat

  

Bthat

  

  Cwhich

Dhow

[  ]

(11)Awhom

  

Bwho

  

  Cwhich

Dwhat

[  ]

(12)Ahard

  

Bbadly

  

  Cslowly

Deasily

[  ]

(13)Aproduces

  

Bdevelops

  

  Cmakes

Dtakes

[  ]

(14)Alike 

  

Bof

  

  Cas

Dthrough

[  ]

(15)Awith

  

Bby

  

  Cfrom

Din

[  ]

(16)Aalthough

  

Bsince

  

  Cbefore

Dafter

[  ]

(17)Away

  

Breason

  

  Cthing

Didea

[  ]

(18)Abrain

  

Bheart

  

  Chead

  

Dmind

  

[  ]

  

(19)Adown

  

Bon

  

  Cfor

Dof

[  ]

(20)Aout

  

Boff

  

  Cabout

D.on

[  ]

查看习题详情和答案>>

阅读理解,阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

  Rene Descartes’ explanation of pain has long been acknowledged in medicine.He proposed that pain is a purely physical phenomenon – that tissue injury makes specific nerves send a signal to the brain, causing the mind to notice pain.The phenomenon, he said, is like pulling on a rope to ring a bell in the brain.It is hard to overstate how deeply fixed this account has become.In medicine, doctors see pain in Descartes’ terms-as a physical process, a sing of tissue injury.

  The limitations of this explanation, however, have been apparent for some time, since people with obvious injuries sometimes report feeling no pain at all.Later, researchers proposed that Descartes’ model be replaced with what they called the gate control theory of pain.They argued that before pain signals reach the brain, they must first go through a gating mechanism in the spinal cord(脊髓).In some cases, this imaginary gate could simply step gain signals from getting to the brain.

  Their most amazing suggestion was that what controlled the gate was not just signals from sensory nerves but also emotions and other “output” from the brain.They were saying that pulling on the rope need not make the bell ring.The bell itself-the mind-could stop it.This theory led to a great deal of research into how such factors as mood, gender, and beliefs influence the experience of pain.In a British study, for example, researchers measured pain threshold and tolerance levels in 53 ballet dancers and 53 university students by using a common measurement:after immersing your hand in body-temperature water for two mintues to establish a baseline condition, you put your hand in a bowl of ice water and start a clock running.You mark the time when it begins to hurt:that is your pain threshold.Then you mark the time when it hurts too much to keep your hand in the water:that is your pain tolerance.The test is always stopped at 120 seconds, to prevent injury.

  The results were striking.On average female students reported pain at 16 seconds and pulled their hands out of the ice water at 37 seconds.Female dancers were almost three times as long on both counts.Men in both groups had a higher threshold and tolerance for pain, but the difference between mals dancers and mals nondancers was nearly as large.What explains that difference? Probably it has something to do with the psychology of ballet dancers – a group known for self-discipline, physical fitness, and competitiveness, as well as by a high rate of chronic(慢性)injury.Their driven personalities and competitive culture evidently accustom them to pain.Other studies along these lines have shown that outgoing people have greater pain tolerance and that, with training, one can reduce one's sensitivity to pain.

  There is also striking evidence that very simple kinds of mental suggestion can have powerful effects on pain.In one study of 500 patients undergoing dental procedures, those who were given a placebo injection and promised that it would relieve their pain had the least discomfort-not only less than the patients who got a placebo and were told nothing but also less than the patients who got actual drug without any promise that it would work.

  Today it is abundantly evident that the brain is actively involved in the experience of pain and is no more bell on a string.Today every medical textbook teaches the gate control theory as fact.There's a problem with it, though.It explains people who have injuries but feel no pain, but it doesn't explain the reverse, which is far more common-the millions of people who experience chronic pain, such as back pain, with no signs of injury whatsoever.So where does the pain come from? The rope and clapper are gone, but the bell is still ringing

(1)

The primary purpose of the passage is to ________.

[  ]

A.

describe how modern research has updated an old explanation.

B.

support a traditional view with new data.

C.

promote a particular attitude towards physical experience.

D.

suggest a creative treatment for a medical condition.

(2)

Which statement best describes Descartes theory of pain presented in paragraph 1?

[  ]

A.

The brain can shut pain off at will.

B.

The brain plays no part in the body's experience of pain.

C.

Pain can be caused in many different ways.

D.

Pain is an automatic response to bodily injury.

(3)

The author implies that the reason why the gate control was “amazing” was that it ________

[  ]

A.

offered an extremely new and original explanation.

B.

was just opposite to people's everyday experiences.

C.

was grounded in an ridiculous logic.

D.

was so sensible it should have been proposed centuries before.

(4)

The author refers to “chronic back pain” as an example of something that is ________

[  ]

A.

costly, because it troubles millions of people.

B.

puzzling, because it sometimes has no obvious cause.

C.

disappointing, because it does not improve with treatment.

D.

worrying, because it lies beyond the reach of medicine.

(5)

The last sentence of the passage serves mainly to express that ________

[  ]

A.

scientific judgments are difficult to understand.

B.

theoretical investigations are generally useless.

C.

researchers still have a long way to go before the puzzle is made clear.

D.

there is always something puzzling at the heart of science.

查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网