单选题A recent study of an insurance company’s underwriters indicated that those who worked in pleasant physical surroundings were 25 percent more productive than their peers in unpleasant physical surroundings. Objective criteria for evaluating job performance included caseload and complexity of cases. This shows that improving workers’ environments increases those workers’ productivity. Which of the following, if true, most seriously weakens the conclusion above?AOn average, less-productive employees spend no fewer hours per day at their workstations than do their more-productive peers.BUnpleasant surroundings give employees less motivation to work hard than more pleasant surroundings do.CThe more-productive employees are generally rewarded with pleasant office space.DMore-productive employees do not work any more hours than their less-productive peers.EPeer pressure discourages employees in crowded, unpleasant surroundings from making phone calls to their own family members during work time.
单选题
A recent study of an insurance company’s underwriters indicated that those who worked in pleasant physical surroundings were 25 percent more productive than their peers in unpleasant physical surroundings. Objective criteria for evaluating job performance included caseload and complexity of cases. This shows that improving workers’ environments increases those workers’ productivity. Which of the following, if true, most seriously weakens the conclusion above?
A
On average, less-productive employees spend no fewer hours per day at their workstations than do their more-productive peers.
B
Unpleasant surroundings give employees less motivation to work hard than more pleasant surroundings do.
C
The more-productive employees are generally rewarded with pleasant office space.
D
More-productive employees do not work any more hours than their less-productive peers.
E
Peer pressure discourages employees in crowded, unpleasant surroundings from making phone calls to their own family members during work time.
参考解析
解析：
文段由一项研究的结果：在令人舒适的工作环境中的员工比处于不太舒适的工作环境中的同时的效率高25%，得出结论：改善工人的工作环境能提高他们的效率，文中没有提到工作效率高和环境好的因果关系，所以如果工作效率高导致了工作环境的变好，那么该假设会得到削弱，故本题应选C项。
文段由一项研究的结果：在令人舒适的工作环境中的员工比处于不太舒适的工作环境中的同时的效率高25%，得出结论：改善工人的工作环境能提高他们的效率，文中没有提到工作效率高和环境好的因果关系，所以如果工作效率高导致了工作环境的变好，那么该假设会得到削弱，故本题应选C项。
相关考题：
根据下列材料请回答 46～50 题：CNext time a customer comes to your office，offer him a cup of coffee．And when you’re doing your holiday shopping online，make sure you’re holding a large glass of iced tea．The physical sensa’tion(感觉)of warmth encourages emotional warmth，while a cold drink in hand prevents you frommaking unwise decision--those are the practical lesson being drawn from recent research by psychologist Johna．Bargh．Psychologists have known that one person’s perception(感知)of another's“warmth”is a powerful determiner in social relationships．Judging someone to be either“WflfflTl”or“cold”is a primaryconsideration。even trumping evidence that a“cold”person may be more capable．Much of this isrooted in very early childhood experiences，Bargh argues，when babies’conceptual sense of theworld around them is shaped by physical sensation，particularly warmth and coldness．Classic stud—ies by Harry Harlow，published in 1958，showed monkeys preferred to stay close to a cloth“moth—er”rather than one made of wire．even when the wire‘‘mother”carried a food bottle．Harlow’S workand later studies have led psychologists to stress the need for warm physical contact from caregiversto help young children grow into healthy adults with normal social skills．Feelings of“warmth”and“coldness”in social judgments appear to be universal．Although noworldwide study has been done Sargh says that describing people as“warm”or“cold”is common tomany cultures，and studies have found those perception influence judgment in dozens of countries．To test the relationship between physical and psychological warmth，Bargh conducted an experi-ment which involved 41 college students．A research assistant who was unaware of the study’Shypotheses(假设)，handed the students either a hot cup of coffee，or a cold drink，to hold whiletlle researeher filled out a short information form：The drink was then handed back．After that，the students were asked to rate the personality of“Person A”based on a particular description．Those who had briefly held the warm drink regarded Person A as warmer than those who had held the iced drink．“We ale grounded in our physical experiences even when we think abstractly，”says Bargh．第 46 题 According to Paragraph 1,a person’s emotion may be affected by____________．A．the visitors to his officeB．the psychology lesson he hasC．his physical feeling of coldnessD．the things he has bought online
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，回答51－55题。 Next time a customer comes to your office, offer him a cup of coffee. And when you’re doing your holiday shopping online, make sure you’re holding a large glass of iced tea. The physical sensation(感觉) of warmth encourages emotional warmth, while a cold drink in hand prevents you from making unwise decisions—those are the practical lesson being drawn from recent research by psychologist John A． Bargh.Psychologists have known that one person’s perception(感知) of another’s “warmth” is a powerful determiner in social relationships. Judging someone to be either “warm” or “cold” is a primary consideration, even trumping evidence that a “cold” person may be more capable. Much of this is rooted in very early childhood experiences, Bargh argues, when babies’ conceptual sense of the world around them is shaped by physical sensations, particularly warmth and coldness. Classic studies by Harry Harlow, published in 1958, showed monkeys preferred to stay close to a cloth “mother” rather than one made of wire, even when the wire “mother” carried a food bottle. Harlow’s work and later studies have led psychologists to stress the need for warm physical contact from caregivers to help young children grow into healthy adults with normal social skills.Feelings of “warmth” and “coldness” in social judgments appear to be universal. Although no worldwide study has been done, Bargh says that describing people as “warm” or “cold” is common to many cultures, and studies have found those perceptions influence judgment in dozens of countries.To test the relationship between physical and psychological warmth, Bargh conducted an experiment which involved 41 college students. A research assistant who was unaware of the study’s hypotheses(假设), handed the students either a hot cup of coffee, or a cold drink, to hold while the researcher filled out a short information form. The drink was then handed back. After that, the students were asked to rate the personality of “Person A” based on a particular description. Those who had briefly held the warm drink regarded Person A as warmer than those who had held the iced drink.“We are grounded in our physical experiences even when we think abstractly,” says Bargh.第16题：According to Paragraph 1, a person’s emotion may be affected by（ ）A． the visitors to his officeB． the psychology lessons he hasC． his physical feeling of coldnessD． the things he has bought online
材料：The benefit to commerce of allowing stevedores and terminal operators to completely limit their liability is often put forward by supporters on their part．Such reasoning，however，ignores the fact that in the commercial world it is preferable for persons who cause damage to cargo to be held responsible for that damage．Otherwise they will continue to be negligent and will do nothing to alter their practices．Transferring the loss to the underwriters of cargo from the underwriters of the stevedores does not merely shift the cost of insurance．If the stevedores and terminal operators who have the care and charge of cargo do not act carefully when carrying out their duties，then responsibility for loss and damage to cargo will not only be shifted but that loss and damage will be increased as well．Nor are all cargoes or risks fully or even partially insured.Therefore，the premium of cargo insurance is so high that it has been estimated that not much more than fifty percent of shipments by sea on the North Atlantic are actually insured at all． It is a fundamental principle of GOOD business practice and of efficient，fair and low-cost insurance that persons who are responsible for losses should be held accountable，in some way，for those losses．问题：According to the passage，limiting the liability on the part of the stevedores will ________．A.transfer the loss suffered by underwriters of cargo to the underwriters of stevedoresB.transfer the loss suffered by underwriters of stevedores to the underwriters of cargoC.not transfer any liability in practice of shippingD.increase the liability on their partThe author of this passage is a supporter on the side that ________．A.the liability on the part of the stevedores and terminal operators should be completely limitedB.transferring the loss to the underwriters of cargo from the underwriters of the stevedores is impossible in shipping practiceC.transferring the insurance cost to the underwriters of cargo from the underwriters of the stevedores is necessary in the eyes of shipping lawsD.persons who are responsible for losses should be held accountable，in some way，for those lossesIf the persons who are responsible for losses and damages are not held accountable，in some way，for those losses and damages，that losses and damages will ________．A.be increasedB.be decreasedC.be preventedD.not happenedIn the author's opinion，the insured cargo accounting to fifty percent of total shipments by sea on the North Atlantic is ________．A.reasonably practicableB.normalC.too muchD.too little请帮忙给出每个问题的正确答案和分析，谢谢！
共用题干Men Too May Suffer From Domestic Violence Nearly three in 10 men have experienced violence at the hands of an intimate partner during their lifetimes,according to one of the few studies to look_______(51)domestic violence and health among men. “Many men actually do experience domestic violence,although we don't hear about it _______(52),”Dr. Robert J.Reid of the University of Washington in Seattle,one of the study's authors,told Reuters Health.“They often don't tell_______(53)we don't ask.We want to get the message out to men who_______(54)experience domestic violence that they are not alone and there are resources available to ______(55).” The researchers asked study participants about physical abuse and non-physical_______ (56)such as threats that made them_______(57)for their safety,controlling behavior(for ex-ample,being told who they could associate with and where they could go),and constant name-calling. Among men 18 to 54 years old,14.2 percent said they had experienced intimate partner _______(58)in the past five years,while 6 .1 percent reported domestic violence in the previ-ous year. Rates were lower for men 55 and_______(59),with 5 .3 percent reporting violence in the past five years and 2 .4 percent having experienced it in the past 12 months. Overall,30 .5 percent of men younger than 55 and 26 .5 percent of older men said they had been victims of_______(60)violence at some point in their lives.About half of the violence the men_______(61)was physical. However,the physical violence men reported wasn't as harsh as_______(62)suffered by, women in a previous study; 20 percent to 40 percent of the men rated it as severe,compared to 61 percent of______(63). Men who reported experiencing domestic violence had more emotional and mental health problems_______(64)those who had not，especially older men,the_______(65)found.57._________A:. hopeB: fearC:.waitD:.look
共用题干Domestic ViolenceNearly three in 10 men have experienced violence at the hands of an intimate partner during their life- time,according________(51)one of the few studies to look at domestic violence and health among men."Many men actually do_________(52)domestic violence,although we don'thear about it often." Dr. Robert J.Reid of the University of Washington in Seattle,one of the study's authors,told Reuters Health."They often don't__________(53)and we don't ask.We want to get the message out to men who do experience domestic violence_________(54)they are not alone and there are resources available to them."The researchers asked study__________ (55)about physical abuse（人身伤害）and non-physical abuse, such as_________(56)that made them fear for their safety,controlling behavior,and constant name-calling.Among men 1 8 to 54 years old,14.2 percent said they had experienced intimate partner violence in the past five years,_______(57)6.1 percent reported domestic violence in the previous year.Rates were lower for men 55 and older,with 5.3 percent__________(58)violence in the past five years and 2.4 percent having experienced it in the past 12 months.__________(59),30.5 percent of men younger than 55 and 26.5 percent of older men said they had been__________(60)of domestic violence at some point in their lives.About half of the_________(61)the men experienced was physical.However,the physical violence men reported wasn't as harsh as that_________(62)by women in a previous study,20 percent to 40 percent of the men rated__________(63)as severe,compared with 61 per- cent of women.Men who reported experiencing domestic violence had more emotional and mental health__________(64) than those who had not,_______(65)older men,the researchers found._________(55)A:participants B:observersC:listenersD:actors
共用题干Domestic ViolenceNearly three in 10 men have experienced violence at the hands of an intimate partner during their life- time,according________(51)one of the few studies to look at domestic violence and health among men."Many men actually do_________(52)domestic violence,although we don'thear about it often." Dr. Robert J.Reid of the University of Washington in Seattle,one of the study's authors,told Reuters Health."They often don't__________(53)and we don't ask.We want to get the message out to men who do experience domestic violence_________(54)they are not alone and there are resources available to them."The researchers asked study__________ (55)about physical abuse（人身伤害）and non-physical abuse, such as_________(56)that made them fear for their safety,controlling behavior,and constant name-calling.Among men 1 8 to 54 years old,14.2 percent said they had experienced intimate partner violence in the past five years,_______(57)6.1 percent reported domestic violence in the previous year.Rates were lower for men 55 and older,with 5.3 percent__________(58)violence in the past five years and 2.4 percent having experienced it in the past 12 months.__________(59),30.5 percent of men younger than 55 and 26.5 percent of older men said they had been__________(60)of domestic violence at some point in their lives.About half of the_________(61)the men experienced was physical.However,the physical violence men reported wasn't as harsh as that_________(62)by women in a previous study,20 percent to 40 percent of the men rated__________(63)as severe,compared with 61 per- cent of women.Men who reported experiencing domestic violence had more emotional and mental health__________(64) than those who had not,_______(65)older men,the researchers found._________(61)A:formB:wayC:violenceD:study
Insurance (保险) may be considered a game of risk in which individuals and businesses protect themselves, their families, and their property from possible losses resulting from unpredictable events such as storms, fires, accidents and illnesses. The first rule of the game, devised centuries age, is "share the risk". To play by this rule, many people take a small loss in place of one person′ s taking a large one. It is a simple idea: an individual pays a small amount of money called a premium (保险费) to an agent who acts on behalf of an insurance company, or underwriter, which holds the individual′s premium and the premiums paid by thousands of others. The individual receives an insurance policy, a promise that if there is a loss to the individual as defined in the policy the insurance company will pay for it. The funds will come from the individual′s premium, the premium paid by others who did not have losses, and money from the company′ s investment of all the premiums. An individual who does not have a loss loses the premium money but purchases what insurance underwriters call "peace of mind". It is a gamble for the customer and the underwriter, but it is built on the first rule of risk that losses are small when shared by many. Which of the following statements is NOT TRUE?A.The first rule of the game in insurance business was devised hundreds of years ago.B.There are many agents who sell insurance policies and collect premiums on behalf of underwriters.C.An individual who pays premium for a policy is insured by an insurance company.D.An individual pays premium directly to an insurance company.
When researchers first discovered a link in the late 1990s between childhood adversity and chronic health problem later in life, the real revelation was how common those experiences were across all socioeconomic groups. But the first major study to focus on adverse childhood experiences (ACEs) was limited to a single healthcare system in San Diego. A study published in JAMA Pediatrics- the largest nationally representative study to date on ACEs一confirms that these experiences are universal, yet highlights some disparities among socioeconomic groups.The current study finds three out of five adults across the U.S. had at least one adverse experience in their childhood, such as divorce, a parent's death, physical or emotional abuse, or a family member's incarceration or substance abuse problem. A quarter of adults have at least three such experiences in childhood, which according to other research- increase their risk for most common chronic diseases, from heart disease and cancer to depression and substance abuse."This is the first study of this kind that alows us to talk about adverse childhood experience as a public health problem in the same way we talk about obesity or hypertension or any other highly prevalent population risk factor" says Adam Schickedanz, an assistant professor of pediatrics at the David Geffen School of Medicine at UCLA, who was not involved in the research. "Up until now,we haven't really had a study that takes a national look .The study researchers, led by Centers for Disease Control and Prevention researcher Melissa T. Merrick, analyzed data from 214, 157 adults in 23 states recently. The participants answered 11 questions about whether they'd experienced what have now become well recognized as ACEs: parental separation or divorce, child abuse (physical, emotional and sexual ), domestic violence and living with someone who has been incarcerated or has a mental ilness or a substance use disorder.Nearly 62 percent of respondents had at least one ACE and a quarter reported three or more. The remaining respondents had at least two ACES, including 16 percent with four or more such experiences .Those identifying as black or Latino and those with less than a high school education or an annual income below $15,000 were more likely to have more ACES. Women, younger adults,unemployed people and those unable to work also tended to have more ACES. But Schickedant cautions that, while the disparities are real, it's important to recognize how common these experiences are among all people, including white and middle class families.”This study shows that ACEs affect people from all walks of life everywhere," he says.This new study suggests that a need to target prevention resources where they can help most,says Jack Shonkoff, a professor of child health and development at the Harvard T. H. Chan School of Public Health. This requires identifying what makes some people more susceptible than others to the effects of adversity,“Nobody is immune to adverse experiences in childhood but for some population groups, they're a larger burden of childhood adversity than others." he says. What will most probably be done according to the current study?A. Identifying the group of people who are at greatest risk.B. Exploring the social and biological mechanisms behind.C. Developing programs that can reduce or mitigate adversity.D. Teaching children how to deal with adversity in a healthy way
When researchers first discovered a link in the late 1990s between childhood adversity and chronic health problem later in life, the real revelation was how common those experiences were across all socioeconomic groups. But the first major study to focus on adverse childhood experiences (ACEs) was limited to a single healthcare system in San Diego. A study published in JAMA Pediatrics- the largest nationally representative study to date on ACEs一confirms that these experiences are universal, yet highlights some disparities among socioeconomic groups.The current study finds three out of five adults across the U.S. had at least one adverse experience in their childhood, such as divorce, a parent's death, physical or emotional abuse, or a family member's incarceration or substance abuse problem. A quarter of adults have at least three such experiences in childhood, which according to other research- increase their risk for most common chronic diseases, from heart disease and cancer to depression and substance abuse."This is the first study of this kind that alows us to talk about adverse childhood experience as a public health problem in the same way we talk about obesity or hypertension or any other highly prevalent population risk factor" says Adam Schickedanz, an assistant professor of pediatrics at the David Geffen School of Medicine at UCLA, who was not involved in the research. "Up until now,we haven't really had a study that takes a national look .The study researchers, led by Centers for Disease Control and Prevention researcher Melissa T. Merrick, analyzed data from 214, 157 adults in 23 states recently. The participants answered 11 questions about whether they'd experienced what have now become well recognized as ACEs: parental separation or divorce, child abuse (physical, emotional and sexual ), domestic violence and living with someone who has been incarcerated or has a mental ilness or a substance use disorder.Nearly 62 percent of respondents had at least one ACE and a quarter reported three or more. The remaining respondents had at least two ACES, including 16 percent with four or more such experiences .Those identifying as black or Latino and those with less than a high school education or an annual income below $15,000 were more likely to have more ACES. Women, younger adults,unemployed people and those unable to work also tended to have more ACES. But Schickedant cautions that, while the disparities are real, it's important to recognize how common these experiences are among all people, including white and middle class families.”This study shows that ACEs affect people from all walks of life everywhere," he says.This new study suggests that a need to target prevention resources where they can help most,says Jack Shonkoff, a professor of child health and development at the Harvard T. H. Chan School of Public Health. This requires identifying what makes some people more susceptible than others to the effects of adversity,“Nobody is immune to adverse experiences in childhood but for some population groups, they're a larger burden of childhood adversity than others." he says.What is found by the first major study on adverse childhood experience(ACEs)?A. ACEs are common across all socioeconomic groups.B. There are some disparities for some population groups.C. ACEs are not directly related to chronic health problems.D. Children are more vulnerable to adverse experiences than adults.
共用题干Young Adults Who Exercise Get Higher IQ ScoresYoung adults who are fit have a higher IQ and are more likely to go on to university,reveals a major new study carried out at the Sahlgrenska Academy and Sahlgrenska University Hospital.The results were recently published in the Proceedings of the National Academy of Sciences (PNAS)The study involved 1 .2 million Swedish men doing military service who were born be-tween 1950 and 1976 .The research group analyzed the results of both physical and IQ tests the youngsters took right after they started serving the army.The study shows a clear link between good physical fitness and better results for the IQ test. The strongest links are for logical thinking and verbal comprehension.But it is only fitness that plays a role in the results for the IQ test,and not strength.“Being fit means that you also have good heart and lung capacity and that your brain gets plenty of oxygen,”says Michael Nilsson, professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital. “This may be one of the reasons why we can see a clear link with fitness,but not with muscular strength .We are also seeing that there are growth factors that are important.”By analyzing data for twins,the researchers have been able to determine that it is primarily environmental factors and not genes that explain the link between fitness and higher IQ.“We have also shown that those youngsters who improve their physical fitness between the ages of 15 and 18 increase their cognitive performance,”says Maria Aberg,researcher at the Sahl-grenska Academy and physician at Aby health centre.“This being the case,physical education is a subject that has an important place in schools,and is an absolute must if we want to do well in maths and other theoretical subjects.”The researchers have also compared the results from fitness tests during national service with the socio-economic status of the men later in life.Those who were fit at 18 were more likely to go into higher education,and many secured more qualified jobs.Which of the following is an implication of physical fitness?A: Brain size.B: Good logical capacity.C: Clear logical thinking.D: Muscular strength.
Only those who worked here for more than five years are eligibie for the special payment.A:encouraged B:enforcedC:expected D:entitled
共用题干Young Adults Who Exercise Get Higher IQ ScoresYoung adults who are fit have a higher IQ and are more likely to go on to university,reveals a major new study carried out at the Sahlgrenska Academy and Sahlgrenska University Hospital.The results were recently published in the Proceedings of the National Academy of Sciences (PNAS)The study involved 1 .2 million Swedish men doing military service who were born be-tween 1950 and 1976 .The research group analyzed the results of both physical and IQ tests the youngsters took right after they started serving the army.The study shows a clear link between good physical fitness and better results for the IQ test. The strongest links are for logical thinking and verbal comprehension.But it is only fitness that plays a role in the results for the IQ test,and not strength.“Being fit means that you also have good heart and lung capacity and that your brain gets plenty of oxygen,”says Michael Nilsson, professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital. “This may be one of the reasons why we can see a clear link with fitness,but not with muscular strength .We are also seeing that there are growth factors that are important.”By analyzing data for twins,the researchers have been able to determine that it is primarily environmental factors and not genes that explain the link between fitness and higher IQ.“We have also shown that those youngsters who improve their physical fitness between the ages of 15 and 18 increase their cognitive performance,”says Maria Aberg,researcher at the Sahl-grenska Academy and physician at Aby health centre.“This being the case,physical education is a subject that has an important place in schools,and is an absolute must if we want to do well in maths and other theoretical subjects.”The researchers have also compared the results from fitness tests during national service with the socio-economic status of the men later in life.Those who were fit at 18 were more likely to go into higher education,and many secured more qualified jobs. The study findings include the following EXCEPT that_______.A: growth factors are significant for a person's IQB: young adults who are fit get higher scores in IQ testsC:youngsters who are fit will more likely get college educationD: young people who are muscular and strong have a higher IQ
资料：Placing the right type of workers in close proximity to each other can generate up to a 15 percent increase in organizational performance，according to the study from Cornerstone On Demand，a provider of cloud-based learning and talent-management software，and researchers at Harvard Business School in Massachusetts. For businesses with 2，000 employees, this translates into an additional $1 million in profit each year，the study said.For the study，researchers examined data from a two-year period of more than 2，000 employees working at a large technology company with locations in the U.S. and Europe. The study’s authors separated workers into three different categories based on the work they produced：Productive： These employees are very productive，but don’t always produce quality work.Quality：These workers produce work of superior quality，but aren’t always productive.Generalists： These employees are average in terms of both productivity and quality.The researchers defined productivity by how long it takes an employee to finish a task，and effectiveness by how often employees need to ask a co-worker for help completing a task.What is NOT true about the categories of the workers？A.There is no particular order of these categoriesB.Generalists are those who are neither productive nor effectiveC.The frequency employees need to ask a co-worker for help completing a task is recorded as effectivenessD.Productive workers are those who finish a task quickly
共用题干SleepingPeople who sleep for more than eight hours a night do not live as long as those who sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死亡率）.Scientists have no explanation for the findings and do not know if they mean people who like a lie-in（睡懒觉）can extend their lives by sleeping less.Although it is a common belief that sleeping for at least eight hours a night is vital forhealth and well-being,the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm."Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San Diego.Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies are needed to determine if setting your alarm clock earlier will actually improve your health."The scientists,who were funded by the American Cancer Society,found that the best survival rates were among the men and women who slept for seven hours a night.Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study,when other factors such as diet and smoking were taken into account.Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours.However,an increasing death rate was found among those who slept for less than five hours.Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration （持续时间）sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night,until now." Most of the participants slept for 7 hours a night during the study.A:Right B:Wrong C:Not mentioned
共用题干SleepingPeople who sleep for more than eight hours a night do not live as long as those who sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死亡率）.Scientists have no explanation for the findings and do not know if they mean people who like a lie-in（睡懒觉）can extend their lives by sleeping less.Although it is a common belief that sleeping for at least eight hours a night is vital forhealth and well-being,the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm."Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San Diego.Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies are needed to determine if setting your alarm clock earlier will actually improve your health."The scientists,who were funded by the American Cancer Society,found that the best survival rates were among the men and women who slept for seven hours a night.Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study,when other factors such as diet and smoking were taken into account.Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours.However,an increasing death rate was found among those who slept for less than five hours.Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration （持续时间）sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night,until now." The findings indicate that it is all right to sleep for 6.5 hours a night.A:Right B:Wrong C:Not mentioned
共用题干SleepingPeople who sleep for more than eight hours a night do not live as long as those who sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死亡率）.Scientists have no explanation for the findings and do not know if they mean people who like a lie-in（睡懒觉）can extend their lives by sleeping less.Although it is a common belief that sleeping for at least eight hours a night is vital forhealth and well-being,the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm."Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San Diego.Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies are needed to determine if setting your alarm clock earlier will actually improve your health."The scientists,who were funded by the American Cancer Society,found that the best survival rates were among the men and women who slept for seven hours a night.Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study,when other factors such as diet and smoking were taken into account.Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours.However,an increasing death rate was found among those who slept for less than five hours.Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration （持续时间）sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night,until now." Sleeping for less than 5 hours each night is better than sleeping for 5 hours.A:Right B:Wrong C:Not mentioned
共用题干SleepingPeople who sleep for more than eight hours a night do not live as long as those who sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死亡率）.Scientists have no explanation for the findings and do not know if they mean people who like a lie-in（睡懒觉）can extend their lives by sleeping less.Although it is a common belief that sleeping for at least eight hours a night is vital forhealth and well-being,the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm."Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San Diego.Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies are needed to determine if setting your alarm clock earlier will actually improve your health."The scientists,who were funded by the American Cancer Society,found that the best survival rates were among the men and women who slept for seven hours a night.Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study,when other factors such as diet and smoking were taken into account.Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours.However,an increasing death rate was found among those who slept for less than five hours.Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration （持续时间）sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night,until now." More than one million Americans participated in the six-year study.A:Right B:Wrong C:Not mentioned
共用题干SleepingPeople who sleep for more than eight hours a night do not live as long as those who sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死亡率）.Scientists have no explanation for the findings and do not know if they mean people who like a lie-in（睡懒觉）can extend their lives by sleeping less.Although it is a common belief that sleeping for at least eight hours a night is vital forhealth and well-being,the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm."Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San Diego.Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies are needed to determine if setting your alarm clock earlier will actually improve your health."The scientists,who were funded by the American Cancer Society,found that the best survival rates were among the men and women who slept for seven hours a night.Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study,when other factors such as diet and smoking were taken into account.Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours.However,an increasing death rate was found among those who slept for less than five hours.Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration （持续时间）sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night,until now." All the participants were from the state of California.A:Right B:Wrong C:Not mentioned
共用题干Men Too May Suffer from Domestic ViolenceNearly three in 10 men have experienced violence at the hands of an intimate（亲密的）partner during their lifetimes,according to one of the few studies to look______(51)domestic violence and health among men."Many men actually do experience domestic violence,although we don't hear about it ______(52),"Dr. Robert J. Reid of the University of Washington in Seattle,one of the authors,told Reuters Health."They often don't tell______(53)we don't ask. We want to message out（传达这样一个信息）to men who______(54)experience domestic violence that they are not alone and there are resources available to______(55)."The researchers asked study participants about physical abuse（伤害）and non-physical ______(56)such as threats that made them______(57)for their safety,controlling behavior (for example,being told who they could associate with and where they could go),and constant name-calling（辱骂）.Among men 1 8 to 54 years old,14.2 percent said they had experienced intimate partner______(58)in the past five years,while 6.1 percent reported domestic violence in the previous year.Rates were lower for men 55 and______(59),with 5.3 percent reporting violence in the past five years and 2.4 percent having experienced it in the past 12 months.Overall,30.5 percent of men younger than 55 and 26.5 percent of older men said they had been victims of______(60)violence at some point in their lives.About half of the violence men______(61)was physical.However,the physical violence men reported wasn't as harsh as______(62)suffered by women in a previous study;20 percent to 40 percent of the men rated it as severe,compare to 61 percent of______(63).Men who reported experiencing domestic violence had more emotional and mental problems ______(64)those who had not,especially older men,the______(65)found._________(53)A:and B:butC:yet D:unless
Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports. Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.What was confirmed by the Boston University Medical Center’s study? （）A、Controlling one’s calorie intake is more important than doing exercise.B、Even occasional exercise can help reduce weight.C、Weight reduction is impossible without exercise.D、One could lose ten pounds in a year’s time if there’s no increase in food intake.
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，"I generally play alone or keep to myself" and，"I am often unhappy or tearful".They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise."Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.What is the passage mainly about?AIt describes the reasons people watch television.BIt reports the findings of a scientific study.CIt discusses ways to improve children's physical health.DIt advises parents on raising their children.
单选题It's reported by some scientists that physical surroundings _____ people's emotional reactions.AaffectBinfectCeffectDdefect
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，"I generally play alone or keep to myself" and，"I am often unhappy or tearful".They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise."Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.How can children improve mental health according to the passage？ABy limiting TV and computer use to less than two hours a day.BBy getting more physical exercise.CBy playing more educational computer games.DBy going to bed earlier each night.
单选题Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports. Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.What was confirmed by the Boston University Medical Center’s study? （）AControlling one’s calorie intake is more important than doing exercise.BEven occasional exercise can help reduce weight.CWeight reduction is impossible without exercise.DOne could lose ten pounds in a year’s time if there’s no increase in food intake.
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，I generally play alone or keep to myself and，I am often unhappy or tearful.They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise.Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.What information can we get about the University of Bristol study?AThe results of it have been published.BAll kids who take part in the study had an interview.CThe questionnaires of it contained five questions.DIt was done by an elementary school.
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，"I generally play alone or keep to myself" and，"I am often unhappy or tearful".They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise."Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.Which of the children behavior below leads to the highest risk of the mental problems, according to the University of Bristol study?APlaying computer every day.BWatching TV 3 hours per day.CDoing few physical activities.DOwning few friends.
单选题Passage1Children who spend more than two hours a day at a computer or watching television are more likely than others to have mental problems，scientists say.Researchers found that 11-year-olds who spent several hours in front of a screen each day did worse on mental health tests，no matter how much physical exercise they got. The University of Bristol study，published in Pediatrics，involved more than 1，000 children aged about 10.They also had the kids fill out questionnaires designed to gauge the kids' emotional well-being and behavior.The questionnaires contained 20 questions covering five sections-emotional difficulties，conduct problems，hyperactivity or inattention，friendships and peer groups and problems relating to friends and peer groups.The study found no direct evidence that sitting in front of a screen actually causes mental health problems. Instead，it suggests that children with difficulties，such as extreme shyness，are more likely to choose TV or computer games than sociable activities. In the study，children were asked whether they agreed，disagreed or somewhat agree with a list of statements，including，I generally play alone or keep to myself and，I am often unhappy or tearful.They were also asked how much exercise they took and how long they spent at a TV or computer screen.According to the study，children who spent more than two hours a day at a screen had a 60% higher risk of mental problems than children who spent fewer viewing hours. The risk was only slightly higher in children who did little or no exercise.Physical activity is good for health in many ways，but it can't make up for long hours of screen viewing. Parents should consider limiting their children's screen viewing to no more than 2 hours a day，”said the study organizer，Angie Page.Previous studies have raised concerns that watching too much television can affect children's behavior in later life. A Canadian study found that those who watched most TV as young children performed worse at school, ate more junk food and had more trouble concentrating.How did the researchers carry out the study?ABy reviewing children's records online.BBy interviewing children's parents.CBy watching children in their home.DBy asking children questions.