There is no creature that does not need sleep or complete rest every day.If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irritable and find it hard to think clearly or concentrate on your work.So sleep is quite simply the time when the ceils of?your body recover from the work of the day and build up supplies of energy for the next period of activity.One of the things we all know about sleep is that we are Unconscious in sleep,We do not know what is going on around us.But that do.esn′t mean the body stops all activity.The important organs continue to work during sleep,but most of the body functions are slowed down.For example,our breathing becomes slower and deeper.The heart beats more slowly,and the blood pressure is lower.Our arms and legs become limp(柔软的)and muscles are at rest.It would be impossible for our body to relax to such an extent if we were awake.So sleep does for us what the?most quiet rest can not do.Your body temperature becomes lower when you are asleep,which is the reason people go to sleep under some kind of covers.And even though you are unconscious,many of your reflexes(反射动作)still work.For instance,if someone tickles(使觉得痒)your foot,you will put it away in your sleep,or even brush a fly from your forehead.You do these things without knowing it.If you don′t have as much sleep as your body needs,you will__________A.work properlyB.think clearlyC.keep your attention on your workD.easily get angry
There is no creature that does not need sleep or complete rest every day.
If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irritable and find it hard to think clearly or concentrate on your work.So sleep is quite simply the time when the ceils of?your body recover from the work of the day and build up supplies of energy for the next period of activity.
One of the things we all know about sleep is that we are Unconscious in sleep,We do not know what is going on around us.But that do.esn′t mean the body stops all activity.The important organs continue to work during sleep,but most of the body functions are slowed down.
For example,our breathing becomes slower and deeper.The heart beats more slowly,and the blood pressure is lower.Our arms and legs become limp(柔软的)and muscles are at rest.It would be impossible for our body to relax to such an extent if we were awake.So sleep does for us what the?most quiet rest can not do.
Your body temperature becomes lower when you are asleep,which is the reason people go to sleep under some kind of covers.And even though you are unconscious,many of your reflexes(反射动作)still work.For instance,if someone tickles(使觉得痒)your foot,you will put it away in your sleep,or even brush a fly from your forehead.You do these things without knowing it.
If you don′t have as much sleep as your body needs,you will__________
If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irritable and find it hard to think clearly or concentrate on your work.So sleep is quite simply the time when the ceils of?your body recover from the work of the day and build up supplies of energy for the next period of activity.
One of the things we all know about sleep is that we are Unconscious in sleep,We do not know what is going on around us.But that do.esn′t mean the body stops all activity.The important organs continue to work during sleep,but most of the body functions are slowed down.
For example,our breathing becomes slower and deeper.The heart beats more slowly,and the blood pressure is lower.Our arms and legs become limp(柔软的)and muscles are at rest.It would be impossible for our body to relax to such an extent if we were awake.So sleep does for us what the?most quiet rest can not do.
Your body temperature becomes lower when you are asleep,which is the reason people go to sleep under some kind of covers.And even though you are unconscious,many of your reflexes(反射动作)still work.For instance,if someone tickles(使觉得痒)your foot,you will put it away in your sleep,or even brush a fly from your forehead.You do these things without knowing it.
If you don′t have as much sleep as your body needs,you will__________
A.work properly
B.think clearly
C.keep your attention on your work
D.easily get angry
B.think clearly
C.keep your attention on your work
D.easily get angry
参考解析
解析：【考情点拨】事实细节题。【应试指导】文章第二段第三句指出，如果睡眠不足，人们会容易发怒，思路也会变得不清晰，而且很难专注于工作。
相关考题：
She felt __________ and did nothing but sleep the whole day. A.slackB.the slackC.slackingD.slackly
7． Every day，________has a good rest and does his homework after school．A． TomB． KateC． Tom and KateD． Tom's sister
Passage FourAfter 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 previous day. The rest that you get while sleeping enables 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 muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.Although your mind slows down, from time to time you will dream. Scientists who study sleep state 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 breathing very slowly and very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!46. A good title for this passage is ______.A. SleepB. Good HealthC. DreamsD. Work and Rest
During sleep, the fatigue (疲劳) of the body disappears and recuperation ( 恢复) begins. The tired mind gathers new energy. Once awake, the memory improves, and annoyance and problems are seen in a better perspective.Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily and, as they grow older, the amount gradually diminishes. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive worker under great pressure may manage on six to eight. Many famous people are reputed to have required little sleep. Napoleon, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed, a favorite position, and a formula you need to follow in order to rest comfortably. Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours ?nearly five days, whereas animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.1、The writer implies that _________A、sleep is important for good mental and physical healthB、a light sleep is as restful as a deep sleepC、memory is improved during sleepD、sleep is relatively unimportant for human beings2、From the amount of sleep Napoleon, Edison and Darwin required, we can infer that_______.A、they were famous great menB、 they were executive workersC、 they were intelligent peopleD、 they were involved in mentally demanding work3、The amount of sleep required ________.A、varies greatly from individual to individualB、 depends on an individual''s ageC、 relates to an individual''s occupationD、 all of the above.4、According to the passage, the sleeping routine will be built at the age of _________.A、10B、20C、30D、405、From animal experiments, we can conclude that the final result of the lack of sleep is probably _________A、mental illnessB、mental breakdownC、susceptibility to illnessD、death
It is more to buy a season ticket if you travel every day. A、cheapB、economicC、economicalD、saving
You are the administrator of the TestKing company network. The network consists of a single Active Directory domain named The network includes 20 member servers running Windows Server 2003 and 4 domain controllers running Windows Server 2003. All client computers run Windows XP Professional.A member server named TestKingSrvA functions as a file server. TestKingSrvA has a locally attached tape device. You need to create a backup schedule for TestKingSrvA. All data on TestKingSrvA must be backed up once a week. Every day, you need to back up only the data that was changed after the last backup. You need to minimize the amount of data that must be backed up every day.What should you do? （）(Choose two)A. Perform a normal backup every week.B. Perform a copy backup every week.C. Perform a differential backup every week.D. Perform an incremental backup every week.E. Perform a normal backup every day.F. Perform a copy backup every day.G. Perform a differential backup every day.H. Perform an incremental backup every day.
By default, how often does a router running IGRP send its complete routing table to its neighbors?() A. Every 5 minutesB. Every 90 secondsC. Every 60 secondsD. Every 30 seconds
共用题干SleeplessnessInsomnia or sleeplessness is a common complaint of women as they enter into menopause .In-somnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you .For women who are having night sweats,their sleep is broken by frequent a-wakening and therefore not refreshing. Generally once the night sweats are controlled a normal sleep pattern returns .If it doesn't it may be,or have become chronic insomnia. How do you know?if you suffer from insomnia every night or most nights for a period of one month then you have chronic insomnia. If you're not having night sweats then it's time to look for other causes of sleep-lessness. Depression and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be checked by a qualified health care provider. Movement disor- ders such as restless leg syndrome are second on the list of insomnia for them,there are new med-icines that may help. Other common causes are shift working,and pain.In up to 30%of people with chronic insomnia no cause can be identified.Medical treatment of these people has generally been with sleeping pills.It is estimated that 25% of the adult popu- lation in America took some type of medicines for sleep last year. It is generally agreed that sleep-ing pills should only be in the lowest dose and for the shortest possible time.Sleep hygiene is directed at changing bad sleep habits.The recommendations are:-Go to bed only when sleepy．-Do not wait up to a specified time．-Avoid caffeine and alcohol in the evening,etc. Which of the following does not fit with sleep hygiene?A: Changing bad sleep habits and following doctors' advice.B: Trying not to drink any caffeine and alcohol in the evening.C: Going to bed when sleepy,not always at the same time.D: Making a rule to go to bed at a specific time every day.
共用题干第三篇Judging from recent surveys,most experts in sleep behavior agree that it is virtually an epidemic of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably be better off with more rest.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 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 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 page 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 decision and to concentrate."Many Americans believe that__________.A:sleep is the first thing that can be sacrificed when one is busyB:they need more sleep to cope with the complexities of everyday lifeC:to sleep is something one can do at any time of the dayD:enough sleep promotes people's drive and ambition
There is no creature that does not need sleep or complete rest every day.If you want to know why,just try going without sleep for a long period of time.You will discover that your mind and body would become too tired to work properly.You would become irritable and find it hard to think clearly or concentrate on your work.So sleep is quite simply the time when the ceils of?your body recover from the work of the day and build up supplies of energy for the next period of activity.One of the things we all know about sleep is that we are Unconscious in sleep,We do not know what is going on around us.But that do.esn′t mean the body stops all activity.The important organs continue to work during sleep,but most of the body functions are slowed down.For example,our breathing becomes slower and deeper.The heart beats more slowly,and the blood pressure is lower.Our arms and legs become limp(柔软的)and muscles are at rest.It would be impossible for our body to relax to such an extent if we were awake.So sleep does for us what the?most quiet rest can not do.Your body temperature becomes lower when you are asleep,which is the reason people go to sleep under some kind of covers.And even though you are unconscious,many of your reflexes(反射动作)still work.For instance,if someone tickles(使觉得痒)your foot,you will put it away in your sleep,or even brush a fly from your forehead.You do these things without knowing it.When you are sleeping,A.all of you reflexes stop workingB.most of your reflexes stop workingC.many of your reflexes still workD.all of your reflexes still work
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Enough sleep is important to health.The amount of sleep（21）depends on the age of the per-son and the conditions in which sleep（22）.The young may need more sleep than the old,hut（23）eight hours are enough for the health of grown-ups.Some can do with less than this amount?but（24）may need more.Every person knows his own need.It is then a matter of how to（25）it.Sleep should be always enough to make one relaxed(松弛)and ready for（26）work.Fresh air is（27）to sound sleep(酣睡).It is not（28）reason for some people to insist that?it is practical to sleep in the open air.（29）a person can keep himself warm,out-of-door sleeping?probably gives the body（30）complete relaxation.Ability to sleep is largely a habit.The conditions refen-ed to only lead to sleep.Out-of-door（31）,a good habit of regular drinking and the avoidance of late eating and（32）are all helpful?to sound sleep.Such factors are largely within the（33）of any person.A bath at（34）,neither?hot nor cold but of body temperature,may be helpful to sleep.Sleeping pills should never be taken?except when suggested by（35）.第（30）题选A.a strongB.a mostC.a badD.an exciting
Enough sleep is important to health.The amount of sleep（21）depends on the age of the per-son and the conditions in which sleep（22）.The young may need more sleep than the old,hut（23）eight hours are enough for the health of grown-ups.Some can do with less than this amount?but（24）may need more.Every person knows his own need.It is then a matter of how to（25）it.Sleep should be always enough to make one relaxed(松弛)and ready for（26）work.Fresh air is（27）to sound sleep(酣睡).It is not（28）reason for some people to insist that?it is practical to sleep in the open air.（29）a person can keep himself warm,out-of-door sleeping?probably gives the body（30）complete relaxation.Ability to sleep is largely a habit.The conditions refen-ed to only lead to sleep.Out-of-door（31）,a good habit of regular drinking and the avoidance of late eating and（32）are all helpful?to sound sleep.Such factors are largely within the（33）of any person.A bath at（34）,neither?hot nor cold but of body temperature,may be helpful to sleep.Sleeping pills should never be taken?except when suggested by（35）.第（29）题选A.AsB.WhereC.UnlessD.When
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多选题You are the administrator of the TestKing company network. The network consists of a single Active Directory domain named The network includes 20 member servers running Windows Server 2003 and 4 domain controllers running Windows Server 2003. All client computers run Windows XP Professional. A member server named TestKingSrvA functions as a file server. TestKingSrvA has a locally attached tape device. You need to create a backup schedule for TestKingSrvA. All data on TestKingSrvA must be backed up once a week. Every day, you need to back up only the data that was changed after the last backup. You need to minimize the amount of data that must be backed up every day. What should you do? （）(Choose two)APerform a normal backup every week.BPerform a copy backup every week.CPerform a differential backup every week.DPerform an incremental backup every week.EPerform a normal backup every day.FPerform a copy backup every day.GPerform a differential backup every day.HPerform an incremental backup every day.
单选题Surveys show that ______ less sleep than we think, ______ too much sleep could even harm our health.Anot only do we need, but thatBnot only we need, but alsoCnot only we need, but thatDnot only do we need, but also
填空题____（complete） the project as planned, we have to work two more hours a day.