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Passage One

In the late 1860's, industry in America grew rapidly. More factories meant more jobs. But working conditions were dangerous. Employees were forced to work as many as 16 hours a day in hot, dirty rooms. Children often worked alongside adults. Wages were usually very low.

Workers tried to improve conditions by forming unions. One of the first important unions was the Knights of Labor, formed in 1869. Blacks and women were welcomed as members. The Knights of Labor wanted an 8-hour workday, higher wages, and better working conditions. The union called for an end to the employment of children under age 14.

Together with other unions, the Knights of Labor tried to make changes through collective bargaining. Union leaders would meet with employers and talk. When collective bargaining failed, the unions resorted to strikes. When some strikes that the unions held turned violent, public opinion turned against them. Many members left the Knights of Labor, and by 1890 the union had died out.

But other unions survived. The AF of L, American Federation of Labor, was formed in 1881. It continued to push for the goals set by the Knights of Labor. However, most federal laws protecting workers and outlawing child labor were not passed until the 1930's.

31. According to the passage, the Knights of Labor wanted all of the following EXCEPT ______.

A. an 8-hour workday

B. higher wages

C. improving working conditions in the factories

D. an increase in the employment of small children


参考答案

更多 “ Passage OneIn the late 1860's, industry in America grew rapidly. More factories meant more jobs. But working conditions were dangerous. Employees were forced to work as many as 16 hours a day in hot, dirty rooms. Children often worked alongside adults. Wages were usually very low.Workers tried to improve conditions by forming unions. One of the first important unions was the Knights of Labor, formed in 1869. Blacks and women were welcomed as members. The Knights of Labor wanted an 8-hour workday, higher wages, and better working conditions. The union called for an end to the employment of children under age 14.Together with other unions, the Knights of Labor tried to make changes through collective bargaining. Union leaders would meet with employers and talk. When collective bargaining failed, the unions resorted to strikes. When some strikes that the unions held turned violent, public opinion turned against them. Many members left the Knights of Labor, and by 1890 the union had died out.But other unions survived. The AF of L, American Federation of Labor, was formed in 1881. It continued to push for the goals set by the Knights of Labor. However, most federal laws protecting workers and outlawing child labor were not passed until the 1930's.31. According to the passage, the Knights of Labor wanted all of the following EXCEPT ______.A. an 8-hour workdayB. higher wagesC. improving working conditions in the factoriesD. an increase in the employment of small children ” 相关考题
考题 根据下列材料请回答 26~30 题:BToday there are policemen everywhere, but in 1700, London had no policemen at all. A few old men used to protect the city streets at night and they were not paid.About 300 years ago, London was starting to get bigger and more and more people began to live there. The city was very dirty and many people were poor. There were so many thieves who stole money in the streets that people stayed in their homes as much as possible.In 1750, Henry Fielding started to pay a group of people to stop thieves. They were like policemen and were called "Bow Street Runners" because they worked near Bow Street.Fifty years later, there were 120 "Bow Street Runners", but London had become very big and needed more policemen. So in 1829, the first Metropolitan (or London)Police Force was started with 3,000 officers. Most of the men worked on foot, but a few rode horses. Until 1920 all the police in London were men.Today. the London police are quite well paid and for the few police officers who still ride horses, the pay is even better than for the others.第 26 题 In 1700, the men who protected the streets were paid __________.A. a fewB. nothingC. a littleD. a lot

考题 Flextime and compressed workweeks are two popular alternative work schedules used by employers to improve the quality of work life of their employers. Which of the following statements concerning these alternative work schedules is not true?A . Flextime schedules alter the employee's working hours but not the number of hours worked each dayB . Both flextime and compressed workweek schedules make scheduling more complex for the employerC . Both flextime and compressed workweek schedules can complicate compliance with overtime regulationsD . Fatigue is a disadvantage of compressed workweek schedules because employees must work longer than the traditional eight hour work dayE . Under flextime schedules, the working hours are established by the employer

考题 151 Flextime and compressed workweeks are two popular alternative work schedules used by employers to improve the quality of work life of their employers. Which of the following statements concerning these alternative work schedules is not true?A. Flextime schedules alter the employee's working hours but not the number of hours worked each day B. Both flextime and compressed workweek schedules make scheduling more complex for the employerC. Both flextime and compressed workweek schedules can complicate compliance with overtime regulationsD. Fatigue is a disadvantage of compressed workweek schedules because employees must work longer than the traditional eight hour work dayE. Under flextime schedules, the working hours are established by the employer

考题 BHaving a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. “It’s a well-known pattern,” said lead researcher Frank Stafford at University of Michigan’s Institute for Social Research. “Men usually work more outside the home, while women take on more of the housework.”He points out that differences among households(家庭)exist. But in general, marriage means more housework for women and less for men. “And the situation gets worse for women when they have children,” Stafford said.Overall, times are changing in the American home. In 1976, women busied themselves with 26 weekly hours of sweeping-and-dusting work, compared with 17 hours in 2005. Men are taking on more housework, more than doubling their housework hours from six in 1976 to 13 in 2005.Single women in their 20s and 30s did the least housework, about 12 weekly hours, while married women in their 60s and 70s did the most-about 21 hours a week.Men showed a somewhat different pattern, with older men picking up the broom more often than younger men. Single men worked the hardest around the house, more than that of all other age groups of married men.Having children increases housework even further. With more than three children, for example, wives took on more of the extra work, clocking about 28 hours a week compared with husbands’10 hours.45. According to the “well-known pattern” in Paragraph 1, a married man___________.A. takes on heavier work B. does more houseworkC. is the main breadwinner D. is the master of the house

考题 根据下面,回答45 ~48 题:BHaving a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. “It’s a well-known pattern,” said lead researcher Frank Stafford at University of Michigan’s Institute for Social Research. “Men usually work more outside the home, while women take on more of the housework.”He points out that differences among households(家庭)exist. But in general, marriage means more housework for women and less for men. “And the situation gets worse for women when they have children,” Stafford said.Overall, times are changing in the American home. In 1976, women busied themselves with 26 weekly hours of sweeping-and-dusting work, compared with 17 hours in 2005. Men are taking on more housework, more than doubling their housework hours from six in 1976 to 13 in 2005.Single women in their 20s and 30s did the least housework, about 12 weekly hours, while married women in their 60s and 70s did the most-about 21 hours a week.Men showed a somewhat different pattern, with older men picking up the broom more often than younger men. Single men worked the hardest around the house, more than that of all other age groups of married men.Having children increases housework even further. With more than three children, for example, wives took on more of the extra work, clocking about 28 hours a week compared with husbands’10 hours.第5题:According to the “well-known pattern” in Paragraph 1, a married man___________.A.takes on heavier workB.does more houseworkC.is the main breadwinnerD.is the master of the house

考题 We can conclude that accidents involving cars ______.A. happened most often in New York CityB. do not happen as often as they did in the early days of the autoC. have killed many more people since Mr Bliss was killedD. were always the driver's fault

考题 (英译汉)The weekends are a time for families in Britain. Often the parents are not at work. Having worked a five-day week from Monday to Friday, Saturdays are a busy time for shops with many families going shopping. Sundays used to be a very special day of the week in Britain. It was the one day of the week for "worship and rest". The shops were closed and most people were at home or at church. Popular leisure activities on Sunday used to be going to church and doing odd jobs around the home such as gardening and DIY.

考题 how many children were there in an irish family on average in the 1950s and 1960s?A. Around 5.B. More than 8.C. One.D. 2 or 3.

考题 Passage ThreeFor more than six million American children, coming home after school means coming home to an empty house. They spend part of each day alone. They are called "latchkey children". They're children who look after themselves while their parents work. And their bad conditions have become a social problem.Lyne Brown was once the headmaster of an elementary school. She said, "A lot of kids had chains around their necks with keys attached.! was constantly telling them to put them inside shirts. There were so many keys, it never came to my mind what they meant. ",slowly, she learned they were house keys.Lyne learned of the impact working couples and single parents were having on their children. She found that Fear is the biggest problem faced by children at home alone. Many had nightmares and were worried about their own safety.The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They'll often play it at high volume. It's hard to get statistics (情况,材料) on latchkey children. Most parents are slow to admit they leave their children alone.41. The main idea about "latchkey children" is that they______.A. are growing in numbersB. are also found in middle-class neighborhoodsC. watch too much television during the dayD. suffer problems from being left alone

考题 A It was a village in India . The people were poor. However , they were not unhappy .After all, their forefathers had lived in the same way for centuries.Then one day. Some visitors from the city arrived. The told the villagers there were some people elsewhere who liked to eat frog’s legs . However , they did not have enough frogs of their own ,and so they wanted to buy frogs from other place.This seemed like money for nothing .There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was catch them .Agreement was reached ,and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time , the people were able to dream of a batter future ,But the dream didn’t last long.The change was hardly noticed at first, but it seemed as if the crops were not doing so well. More worrying was that the children fell ill more ofen, and, there seeemed to be more insects aroud lately.The vilagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money earned to buy pesticides(杀虫剂) and medicines.Soon there was no money left.Then the peaple realized what was happening. It was the frog. They hadn’t been useless.They had been doing an important job---eating insects. Now with so many frogs killed, the insects wereIncreasing more rapidly. They were damaging the crops and spreading diseases.Now, the peaple are still poor.But in the evenings they sit in the village square and listen to sounds of insects and frogs.These sounds of the night now have a much deeper meaning .from paragraoh I we learn that the villagers __________.A.worked very hard for centuriesB.dreamed of having a better lifeC.were poor but somewhat contentD.lived a different life from their forefathers

考题 He works ten hours a day, makes more than US $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking for another job. This 33-year-old white, university-educated person is the typical Internet worker, according to a study by the Industry Standard, a San Francisco-based news magazine. There is also a reasonable chance that his employer will arrange his dry cleaning,19 him to 20 his dog to work, offer him flee massages and give him stock options. And he still thinks people in other 21 are doing 22 . The typical worker, it appears, not only enjoys an income about 23 the national average but also enjoys himself. At present 2.5 million people 24 by Internet firms in the US. The 25 of the study give plenty of reasons 26 so many people think the grass is greener in Silicon Valley. 27 after tech-stocks sharply 28 in April, 29 many start-ups, there is still mood of enthusiasm and special advantage among those still employed. So what 30 52 percent of them "very happy"? "Demanding work" is given as the main reason and "salary" is 31 close 32 . Those questioned in the study also listed working weekends and 33 holidays as signs of the pleasure of the workplaces. Only 13 percent were paid for 34 hours work while 14 percent put more than 12 hours work on an average day. "It wasn′t all about 35 ." wrote Mary Ann Thompson in the introduction to the study, "It was fun." 第(24)题选A.are employed B.are employing C.were employed D.were employing

考题 Questions 64-66 refer to the following article. NEW YORK, November 19-New York's Women in Business Association announced that Anita Huntington, vice president of marketing for Kuiper Hotels, and Mary Foster, general manager of Longwood Hotels & Resorts, were recently selected as this year's Venture Award recipients. The Venture Award was established twenty years ago to recognize the contributions made by female executives to their communities. This year’s cowinner’s are the founders of Art on the Move, a charitable organization that provides art scholarships for students throughout the city. Since joining Kuiper Hotels, Huntington has held key positions in finance and business development. Currently, she leads Kuiper’s marketing operations, often traveling to one of the more than 270 hotels in 16 countries. Foster’s position has also taken her all over the world. Both executives stressed that finding time for volunteer work was extremely important even though they often work long hours at their jobs. Huntington and Foster will be honored on November 26 at a special reception at Humphrey Hall. According to the article, how can people become candidates for the Venture Award? A. By becoming leaders in the hotel industry. B. By starting their own business. C. By working to make their communities. D. By working in New York for at least twenty years.

考题 根据下列内容,回答181-185题。 For the first century or so of the Industrial Revolution, increased productivity led to decreasesin working hours. A generation ago social planners worried about what people would do with all thisnew-found free time. In the US, at least, it seems they need not have bothered. Although the output per hour of work has more than doubled since 1945, leisure (freetime)seems reserved largely for the unemployed. Those who work full-time spend as much time on thejob as they did at the end of World War II. In fact, working hours have increased noticeably since1970. There are several reasons for lost leisure. Since 1979,companies have responded toimprovements in the business climate by having employees work overtime rather than by hiringextra personnel. Most increased production doesn't relate to the employment. Some firms are evendownsizing as their profits climb. It's more profitable to ask 40 employees to labor an extra houreach than to hire one more worker to do the same 40-hour job. Although employees complain about long hours, they, too, have reasons not to trade moneyfor leisure. People who work reduced hours pay a huge price in career terms. It's taken as anegative (负面的 ) signal about their commitment to the firm. Many managers find it difficult tomeasure the contribution of their staff to a firm's well-being, so they use the number of workinghours instead of the output to evaluate the employees. Well aware of this, employees adjust theirbehavior accordingly. It may take some time before workers can successfully trade increased productivity and moneyfor leisure time. The reality is that the U.S. market for goods has focused on fulltime, two-careerhouseholds. Car makers no longer produce cheap models, and developers do not build the tinybungalows that served the first postwar generation of house seekers. In a word, in U.S., goods are appropriate only for high incomes and long hours. What was the result of the industrial revolution?__________A.Less working time. B.More unemployment. C.Fewer factories. D.More jobs.

考题 共用题干 The majority of people,about nine out of ten,are right-handed.Not until recently,people who were left-handed were considered__________(51),and once children showed this tendency they were forced to use their right hands. Today left-handedness is generally_________(52),but it is still a disadvantage in a world________(53)most people are right-handed.For example,most tools and implements are still designed for right-handed people.In sports,__________(54)contrast,doing things with the left hand or foot,is often an advantage.Throwing,kicking,punching or batting from the"wrong"side may result_________(55)throwing off many opponents who are more accustomed to dealing with the_________(56)of players who are right-handed.This is why,in many ________(57)at a professional level,a higher proportion of players are left-handed than in the population as a whole.The word"right"in many languages means"correct"or is_________(58)with lawfulness, whereas the words associated__________(59)"left",such as"sinister",generally have_________ (60)associations.Moreover,among a number of primitive peoples,there is_________(61)close association between death and the left hand.In the past,in most Western societies,children were often forced to use their right hands,especially to write with.In some cases the left hand was_________(62)behind the child's back so that it could not be used.If,in the future,they are allowed to choose,_________(63)will certainly be more left handers,and probably_________(64)people with minor psychological disturbances as a result of being forced to use their_________(65)hand._________(54)A:by B:forC:at D:in

考题 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?A It describes the reasons people watch television.B It reports the findings of a scientific study.C It discusses ways to improve children's physical health.D It advises parents on raising their children.

考题 问答题The American farmers have always been independent and hard-working.In the eighteenth century farmers were quite self-sufficient. The farmfamily grew and made almost nothing it needed. The surplus crop         1.______would be sold in order to buy a few items in the local general stone.In 1860, because some of the farm population had moved to           2.______the city, yet eight percent of the American population was still inthe country. In the late nineteen century, farm work and life were       3.______not much changed from that they had been in old days. The farmer        4.______aroused at dawn or before and had much work to do, with his own         5.______muscles like his chief source of power. He used axes, spades and        6.______other complicated tools. In his house cooking was done in wood         7.______burning stoves, and the kerosene lamp was the only improvementon the candle. The family’s recreation and social life chieflyconsisted a drive in the wagon to the nearby small town or village       8.______to transact some business as well as to chat with neighbors who alsocome to town  The children attended a small elementary school (often of justone room) to that they had to walk every day, possibly for a few miles.     9.______The school term was short so that the children could not help on the      10.______farm. Although the whole family worked, and life was not easy,farmers as a class were self-reliant and independent.

考题 单选题According to the passage, people have difficulty getting to sleep because ______.A they work more than sixty hours a weekB they have too many enemiesC they do not sleep happilyD they are not tired enough

考题 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?A By limiting TV and computer use to less than two hours a day.B By getting more physical exercise.C By playing more educational computer games.D By going to bed earlier each night.

考题 单选题According to the passage, one of the reasons why readers in the 1920s and 130s were attracted by free insurance policies was that ______.A they were afraid of being unable to workB jobs were more dangerous thenC they had bigger families to look afterD money was given away with the policies

考题 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?A The results of it have been published.B All kids who take part in the study had an interview.C The questionnaires of it contained five questions.D It was done by an elementary school.

考题 单选题According to the passage, Asian civilizations, which were ahead of Europe’s, fell behind because ______.A Asian languages were more difficult to learnB European languages had simple alphabetsC they didn’t have the technology to spread ideasD people’s communication skills were not good enough

考题 单选题According to the passage, which of the following is NOT true?A The members of the TPP produce 40%of world GDP-far more than the EU.B The farming and health care industries in Japan could be affected by the TPP.C The car industry in America has complained a lot about the trade with Japan.D Before Mr. Noda announced Japan’s interest in joining the TPP, Canada and Mexico were not actually involved in it.

考题 单选题What impact did color printing have on children’s books?A Sales increased by the middle of the 19th century.B Rough illustrations were now more appealing.C Illustrations told more of the story and were more appealing.D Books became more amusing.

考题 单选题The last sentence in this passage means that if we succeed in making workers’ jobs more interesting _____.A they will want more moneyB they will demand shorter working hoursC more money and shorter working hours are important factorsD more money and shorter working hours will not be so important to them

考题 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?A Playing computer every day.B Watching TV 3 hours per day.C Doing few physical activities.D Owning few friends.

考题 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?A By reviewing children's records online.B By interviewing children's parents.C By watching children in their home.D By asking children questions.

考题 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.