It's no secret that most of us don't get enough sleep and suffer for it.If you're between the ages of 16 and 64,1 don't get seven to nine hours ofsleep per night,your logical 2,executive function,attention,and mood can be impaired.3,severe sleep deprivation can lead to depression,anxiety,and 4 ofparanoia（妄想症）.In the long run,sleep deprivation is a main 5 to the nsk ofdementia and Alzheimer's disease.6,one group that doesn't need to heed these warnings i.s executives.In our 7 of 35,000 leaders and interviews with 250 more,we found that the more seruor a person's 8 is,the more sleep they get.There are tw0 9 explanations for this.Either senior executives,with the help of_10 and hard-working middle managers,do less and take more time for sleep.Or senior executives have had the 11 and discipline throughout their career to get enough sleep and 12 maintain a high performance level without 13.Our conclusion is that the latter is the 14."Sleep has always been foundational for my performance,"Cees't Hart,president and CEO of Carlsberg Group,shared with us."And 15 to perform in a way that is required by my current job,I need seven hours of sleep,every night.Of course,with 16 travel and work commitments,sometimes this is 17,and when that happens,it comes with a cost.When I sleep less,I perform less."18,our data found that 68%ofnon-executive leaders get five to seven hours of sleep per night.When there are not enough hours in the day,they 19 some from the night.Many leaders stay up late to catch up on email or other tasks.According to our research,this tendency is widespread,20 gender.11选？A.knowledgeB.intrigueC.wisdomD.talent

— You seem to have a lot of work to do in your office.You’ve always been working overtime.— ____________ A.You are right, but don’t you know the meaning of work?B.Sorry, I don’t think so.I get overpaid for overwork, you know.C.That’s right.All work and no play make Jack a dull boy.D.That’s right, but the work is interesting.I don’t mind some extra hours at

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29. If you don’t get enough sleep at night, you’ll have _____ energy the next day.A. fewerB. muchC. less D. more

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共用题干Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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（睡眠不足）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 up 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 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 psycho-logical 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 arc 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 and ambition B:the best sleep habitsC:no electric light D:nothing to do in the evening

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共用题干Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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（睡眠不足）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 up 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 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 psycho-logical 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 arc abilities to make decisions and to concentrate."The word"subjects"(Line 1,Para 4)refers to______.A:the performance tests used in the study of sleep deficitB:special branches of knowledge that are being studiedC:people whose behavior or reactions are being studiedD:the psychological consequences of sleep deficit

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共用题干第二篇Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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 (睡眠不足）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 scien- tists 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 up 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,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 programme.In our society,you're considered dynamic if you say you only need 5.5hours' sleep.If you'ye 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 psycho- logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We'ye 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."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 drives and ambition

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共用题干第二篇Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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 (睡眠不足）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 scien- tists 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 up 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,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 programme.In our society,you're considered dynamic if you say you only need 5.5hours' sleep.If you'ye 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 psycho- logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We'ye 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 and ambition B:the best sleep habitsC:no electric lightD:nothing to do in the evening

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共用题干第二篇Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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 (睡眠不足）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 scien- tists 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 up 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,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 programme.In our society,you're considered dynamic if you say you only need 5.5hours' sleep.If you'ye 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 psycho- logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We'ye 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."According to Dr. David,Americans_________.A:are ideally vigorous even under the pressure of lifeB:often neglect the consequences of sleep deficitC:don't know how to relax themselves properlyD:can't get by on 6.5 hours of sleep

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共用题干Knowing Your Real Personality from Sleeping Positions Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you, can control yourself,but when you're asleep,your sleeping position shows the real you .In a normal night,of course,you often change your sleeping positions .The important position that best shows your se- cret personality is the one that you go to sleep. If you go to sleep on your back,you're a very open person .You normally trust people and you are easily influenced by new ideas.You don't like to make people unhappy,so you never ex- press your real feelings.You're quite shy and you aren't very confident. If you sleep on your stomach,you are a person who likes to keep secrets.You worry a lot and you're always easily becoming sad.You never want to change your ideas,but you are satisfied with your life the way it is .You usually live for today not for tomorrow. If you sleep on curled up,you are probably a very nervous person.You have a low opinion of yourself and often protect yourself from being hurt,so you are very defensive .You're shy and you don't usually like meeting people.You like to be on your own. If you sleep on your side,you have usually got a well-balanced personality.You know your strengths and weaknesses.You're usually careful. You have a confident personality.You sometimes feel worried,but you don't often get unhappy .You always say what you think,even if it makes people angry. When does the sleeping position best show your secret personality?A: In the daytime.B: At the beginning of sleep.C: At night.D: During the deep sleep.

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共用题干Knowing Your Real Personality from Sleeping Positions Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you, can control yourself,but when you're asleep,your sleeping position shows the real you .In a normal night,of course,you often change your sleeping positions .The important position that best shows your se- cret personality is the one that you go to sleep. If you go to sleep on your back,you're a very open person .You normally trust people and you are easily influenced by new ideas.You don't like to make people unhappy,so you never ex- press your real feelings.You're quite shy and you aren't very confident. If you sleep on your stomach,you are a person who likes to keep secrets.You worry a lot and you're always easily becoming sad.You never want to change your ideas,but you are satisfied with your life the way it is .You usually live for today not for tomorrow. If you sleep on curled up,you are probably a very nervous person.You have a low opinion of yourself and often protect yourself from being hurt,so you are very defensive .You're shy and you don't usually like meeting people.You like to be on your own. If you sleep on your side,you have usually got a well-balanced personality.You know your strengths and weaknesses.You're usually careful. You have a confident personality.You sometimes feel worried,but you don't often get unhappy .You always say what you think,even if it makes people angry. What does the word“defensive”mean in the passage?A: 易怒的B: 攻击性的C: 外向的D:有戒心的

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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."According to Dr. David,Americans___________.A: are ideally vigorous even under the pressure of lifeB:often neglect the consequences of sleep deficitC:do not know how to relax themselves properlyD:can get by on 6.5 hours of sleep

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共用题干Knowing Your Real Personality from Sleeping Positions Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you, can control yourself,but when you're asleep,your sleeping position shows the real you .In a normal night,of course,you often change your sleeping positions .The important position that best shows your se- cret personality is the one that you go to sleep. If you go to sleep on your back,you're a very open person .You normally trust people and you are easily influenced by new ideas.You don't like to make people unhappy,so you never ex- press your real feelings.You're quite shy and you aren't very confident. If you sleep on your stomach,you are a person who likes to keep secrets.You worry a lot and you're always easily becoming sad.You never want to change your ideas,but you are satisfied with your life the way it is .You usually live for today not for tomorrow. If you sleep on curled up,you are probably a very nervous person.You have a low opinion of yourself and often protect yourself from being hurt,so you are very defensive .You're shy and you don't usually like meeting people.You like to be on your own. If you sleep on your side,you have usually got a well-balanced personality.You know your strengths and weaknesses.You're usually careful. You have a confident personality.You sometimes feel worried,but you don't often get unhappy .You always say what you think,even if it makes people angry. Tina hardly tells her secrets to her friends.She probably goes to sleep＿______.A: on curled upB:on her stomachC: on her backD: on her side

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共用题干Knowing Your Real Personality from Sleeping Positions Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you, can control yourself,but when you're asleep,your sleeping position shows the real you .In a normal night,of course,you often change your sleeping positions .The important position that best shows your se- cret personality is the one that you go to sleep. If you go to sleep on your back,you're a very open person .You normally trust people and you are easily influenced by new ideas.You don't like to make people unhappy,so you never ex- press your real feelings.You're quite shy and you aren't very confident. If you sleep on your stomach,you are a person who likes to keep secrets.You worry a lot and you're always easily becoming sad.You never want to change your ideas,but you are satisfied with your life the way it is .You usually live for today not for tomorrow. If you sleep on curled up,you are probably a very nervous person.You have a low opinion of yourself and often protect yourself from being hurt,so you are very defensive .You're shy and you don't usually like meeting people.You like to be on your own. If you sleep on your side,you have usually got a well-balanced personality.You know your strengths and weaknesses.You're usually careful. You have a confident personality.You sometimes feel worried,but you don't often get unhappy .You always say what you think,even if it makes people angry.What does the passage tell us?A: Sleeping on your side is the best way of sleeping.B: Changing positions will cause sleeping problems.C:.Sleeping positions show people's secret personalities. D:.Enough sleep makes people look better and healthier.

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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."The word"subjects"(line 1,Para.4)refers to__________.A:the performance tests used in the study of sleep deficitB:special branches of knowledge that are being studiedC:people whose behaviors or reactions are being studiedD:the psychological consequences of sleep deficit

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共用题干第二篇Not all sleep is the same every night.We experience some deep,quiet sleep and some active sleep,which is when dreams happen.You might think sleepwalking would happen during active sleep,but a person isn't physically active during active sleep.Sleepwalking usually happens in the first few hours of sleep in the stage called slow-wave or deep sleep.Not all sleepwalkers actually walk.Some simply sit up or stand in bed or act like they're awake when in fact,they're asleep! Most,however,do get up and move around for a few seconds or for as long as haff an hour.Sleepwalkers' eyes are open,but they don't see the same way they do when they're awake and often think they're in different rooms of the house or different places altogether. Sleepwalkers tend to go back to bed on their own and they won't remember it in the morning.Researchers estimate that about 15% of kids sleepwalk regularly. Sleepwalking may run in families（在家族中世代相传）and sometimes occurs when a person is sick, has a fever, is not getting enough sleep,or is stressed（紧张）.If sleepwalking occurs frequently,every night or so,it's a good idea for your mom or dad to take you to see your doctor. But occasional sleepwalking generally isn't something to worry about,although it may look funny or even scary（骇人的）for the people who see a sleepwalker in action.Although occasional sleepwalking isn't a big deal,it's important,of course,that the person is kept safe. Precautions（预防措施）should be taken so the person is less likely to fall down, run into something,or walk out the front door while sleepwalking.What most sleepwalkers do is to_________.A:simply sit upB:simply stand in bedC:get up and walk for some timeD:get up and walk for hours

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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."People in the 18th and 19th centuries used to sleep about 9.5 hours a night because they had__________.A:no drive and ambitionB:no electric lightingC:the best sleep habitsD:a lot to do the next day

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共用题干Knowing Your Real Personality from Sleeping Positions Everyone has got two personalities—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you, can control yourself,but when you're asleep,your sleeping position shows the real you .In a normal night,of course,you often change your sleeping positions .The important position that best shows your se- cret personality is the one that you go to sleep. If you go to sleep on your back,you're a very open person .You normally trust people and you are easily influenced by new ideas.You don't like to make people unhappy,so you never ex- press your real feelings.You're quite shy and you aren't very confident. If you sleep on your stomach,you are a person who likes to keep secrets.You worry a lot and you're always easily becoming sad.You never want to change your ideas,but you are satisfied with your life the way it is .You usually live for today not for tomorrow. If you sleep on curled up,you are probably a very nervous person.You have a low opinion of yourself and often protect yourself from being hurt,so you are very defensive .You're shy and you don't usually like meeting people.You like to be on your own. If you sleep on your side,you have usually got a well-balanced personality.You know your strengths and weaknesses.You're usually careful. You have a confident personality.You sometimes feel worried,but you don't often get unhappy .You always say what you think,even if it makes people angry.You may find the passage in_______.A: a science magazineB: a guide bookC: a sports newspaperD: a story book

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共用题干第二篇Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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 (睡眠不足）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 scien- tists 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 up 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,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 programme.In our society,you're considered dynamic if you say you only need 5.5hours' sleep.If you'ye 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 psycho- logical and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier."We'ye 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."It can be infered from this passage that one should sleep as many hours as is necessary to_________.A:improve one’s memory dramaticallyB:be considered dynamic by other peopleC:maintain one’s daily scheduleD:feel energetic and perform adequately

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共用题干Sleep DeficitJudging from recent surveys,most experts in sleep behavior agree that there is virtually an epidemic（流行病）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（睡眠不足）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 up 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 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 psycho-logical 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 arc abilities to make decisions and to concentrate."It can be inferred from this passage that one should sleep as many hours as is necessary to______.A:improve one,S memory dramaticallyB:be considered dynamic by other peopleC:maintain one's daily scheduleD:feel energetic and perform adequately

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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

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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."It can be concluded from the passage that one should sleep as many hours as is necessary to________.A:improve one's memory dramaticallyB:be considered dynamic by other peopleC:maintain one's daily scheduleD:feel energetic and perform adequately

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共用题干I don't think there is anything wrong with your blood.______(46).If you don't sleep for hours during the early part of the evening,you would be more ready to sleep at bedtime.If you didn't nap after dinner,you would not want to stay up so late,and you would not feel the need to take a sleeping pill.______(47).This helps account for the fact that you feel tired all day.You should get out of the habit of sleeping during the evening. Right after your evening meal,engage in some sort of physical activity一a sport such as bowling,perhaps.______(48).Then go to bed at your usual time or a little earlier,and you should be able to get a good night's rest without taking a pill.If you can get into the habit of spending your evenings this way,I am sure you will feel less tired during the day.______(49).If so,get up and watch television or do some jobs around your house until you feel sleepy.If you fall asleep and then wake up a few hours later,get up but do not take a sleeping pill.Read a while or listen to the radio,and make yourself a few hours' sleep that night.You will feel better in the morning than you usually feel after taking a pill.______ (50).The most important thing is to avoid taking that nap right after dinner and avoid taking pills.________（50）A:The key to your problem is that long nap after dinnerB:Or get together with friends for an evening of cards and conversationC:At first it may be hard for you to go to sleep without taking a pillD:The next night you will be ready to sleep at an earlier hourE:Having difficulty sleeping is a common problem shared by many people F: The pill is still working in your system when you get up in the morning

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It's no secret that most of us don't get enough sleep and suffer for it.If you're between the ages of 16 and 64,1 don't get seven to nine hours ofsleep per night,your logical 2,executive function,attention,and mood can be impaired.3,severe sleep deprivation can lead to depression,anxiety,and 4 ofparanoia（妄想症）.In the long run,sleep deprivation is a main 5 to the nsk ofdementia and Alzheimer's disease.6,one group that doesn't need to heed these warnings i.s executives.In our 7 of 35,000 leaders and interviews with 250 more,we found that the more seruor a person's 8 is,the more sleep they get.There are tw0 9 explanations for this.Either senior executives,with the help of_10 and hard-working middle managers,do less and take more time for sleep.Or senior executives have had the 11 and discipline throughout their career to get enough sleep and 12 maintain a high performance level without 13.Our conclusion is that the latter is the 14."Sleep has always been foundational for my performance,"Cees't Hart,president and CEO of Carlsberg Group,shared with us."And 15 to perform in a way that is required by my current job,I need seven hours of sleep,every night.Of course,with 16 travel and work commitments,sometimes this is 17,and when that happens,it comes with a cost.When I sleep less,I perform less."18,our data found that 68%ofnon-executive leaders get five to seven hours of sleep per night.When there are not enough hours in the day,they 19 some from the night.Many leaders stay up late to catch up on email or other tasks.According to our research,this tendency is widespread,20 gender.16选？A.formalB.crucialC.collectiveD.intense

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It's no secret that most of us don't get enough sleep and suffer for it.If you're between the ages of 16 and 64,1 don't get seven to nine hours ofsleep per night,your logical 2,executive function,attention,and mood can be impaired.3,severe sleep deprivation can lead to depression,anxiety,and 4 ofparanoia（妄想症）.In the long run,sleep deprivation is a main 5 to the nsk ofdementia and Alzheimer's disease.6,one group that doesn't need to heed these warnings i.s executives.In our 7 of 35,000 leaders and interviews with 250 more,we found that the more seruor a person's 8 is,the more sleep they get.There are tw0 9 explanations for this.Either senior executives,with the help of_10 and hard-working middle managers,do less and take more time for sleep.Or senior executives have had the 11 and discipline throughout their career to get enough sleep and 12 maintain a high performance level without 13.Our conclusion is that the latter is the 14."Sleep has always been foundational for my performance,"Cees't Hart,president and CEO of Carlsberg Group,shared with us."And 15 to perform in a way that is required by my current job,I need seven hours of sleep,every night.Of course,with 16 travel and work commitments,sometimes this is 17,and when that happens,it comes with a cost.When I sleep less,I perform less."18,our data found that 68%ofnon-executive leaders get five to seven hours of sleep per night.When there are not enough hours in the day,they 19 some from the night.Many leaders stay up late to catch up on email or other tasks.According to our research,this tendency is widespread,20 gender.2选？A.reasoningB.connectingC.extractingD.patterning

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单选题Ted, _____ yourself and don’t get your coat dirty again, or you will get into trouble!AbehaveBmakeCperformDtake

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问答题Teenagers who don't get enough rest have more learning, health, behavior and mood problems than students who get at least nine hours a night.

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问答题Practice 10　　Like most creatures on earth, humans come equipped with a circadian clock, a roughly 24-hour internal timer that keeps our sleep patterns in sync with our planet. At least until genetics, age and our personal habits get in the way. Even though the average adult needs eight hours of sleep per night, there are “short-sleepers,” who need far less, and morning people, who, research shows, often come from families of other morning people. Then there’s the rest of us, who rely on alarm clocks.　　For those who fantasize about greeting the dawn, there is hope. Sleep experts say that with a little discipline (well, actually, a lot of discipline), most people can reset their circadian clocks. But it’s not as simple as forcing yourself to go to bed earlier (you can’t make a wide-awake brain sleep). It requires inducing a sort of jet lag without leaving your time zone. And sticking it out until your body clock resets itself. And then not resetting it again.　　To start, move up your wake-up time by 20 minutes a day. If you regularly rise at 8 a.m., but really want to get moving at 6 a.m., set the alarm for 7：40 on Monday. The next day, set it for 7：20 and so on. Then, after you wake up, don’t linger in bed. Hit yourself with light. In theory, you’ll gradually get sleepy about 20 minutes earlier each night, and you can facilitate the transition by avoiding extra light exposure from computers or televisions as you near bedtime.　　But recalibrating your inner clock requires more commitment than many people care to give. For some, it’s almost impossible. Very early risers and longtime night owls have a hard time ever changing. Night-shift workers also struggle because they don’t get the environmental and social cues that help adjust the circadian clock.

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问答题But Americans don't seem to be getting the message that we need seven to nine hours per night.

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