New technology linksthe world as never before. Our planet has shrunk（收缩）. It’s now a “globalvillage” where countries are only seconds away by fax or phone or satellitelink. And, of course, our ability to benefit from this high-techcommunication’s equipment is greatly enhanced by foreign language skills. Deeply involved with this new technology is a breed of modern businesspeoplewho have a growing respect for the economic value of doing business abroad. Inmodern markets, success overseas often helps support domestic(国内的)business efforts. Overseas assignments are becoming increasingly important to advancement withinexecutive(行政的) ranks. The executive stationed in another country no longer needfear being “out of sight and out of mind.” He or she can be sure thatthe overseas effort is central to the company’s plan for success, and thatpromotions often follow or accompany an assignment abroad. If an employee cansucceed in a difficult assignment overseas, superior will have greaterconfidence in his or her ability to cope back in the United States wherecross-cultural considerations and foreign language issues are becoming more andmore common. Thanks to a variety of relatively inexpensive communications devices withbusiness applications, even small businesses in the United States are able toget into international markets. English is still the international language of business. But there is anever-growing need for people who can speak another language. A second languageisn’t generally required to get a job in business, but having language skillsgives a candidate(候选人) the edge when other qualificationsappear to be equal.The employee posted abroad who speaks the country’s principallanguage has an opportunity to fast-forward certain negotiations, and can havethe cultural insight to know when it is better to move more slowly. Theemployee at the home office who can communicate well with foreign clients(客户)over the telephone or by fax machine is an obvious asset to the firm.1.What is the author’sattitude toward high-tech communications equipment?A. Critical. B.Indifferent. C.Negative. D.Positive.2.With the increaseduse of high-tech communications equipment, business people_________.A. have to get familiarwith modern technologyB. are gaining moreeconomic benefits from domestic operationsC. are placing moreimportance on their overseas businessD. are eager to workoverseas3. In this passage, “outof sight and out of mind” (Para. 3) probably means _________.A. being unable tothink properly for lack of insightB. being totally out oftouch with business at home C. missingopportunities for promotion when abroadD. leaving all care andworry behind4.According to thepassage, what is an important consideration of international corporations inemploying people today?A. Connections withbusinesses overseas. B. Ability to speak the client’slanguage.C. Technical know-how. D.Business experience.

At the time we couldn't have _____ the result of our campaigning.（ ）A. promptedB. provokedC. encouragedD. anticipated

A Roadmap for the Planet From the 18th through the mid-19th century, whale oil provided light to much of the Western world. At its peak, whaling employed 70,000 people and was the United States’ fifth-largest industry. The U. S. stood as the world’s foremost whale slayer. Producing millions of gallons of oil each year, the industry was widely seen as unquestionable. Without whale oil, so the thinking from the advocates even went, the world would slide backward toward darkness. By today’s standard, of course, killing whales is considered savage. Two hundred years ago there was no environmental movement to speak of. But one wonders if the whalers, finding that each year they needed to go farther to kill massive sea mammals, ever asked themselves: what will happen when we run out of whales’ Such questions today constitute the base of the ever-louder logic of sustainability. Climate activists and campaigning environmentalists argue that the industrialized countries of the world have made sizable withdrawals on nature’s fixed allowance, and unless we change our ways, and soon, we are doomed to an abrupt end. Take the recent proclamation from the United Nations, Environment Program, which argued that governments should dramatically cut back on the use of resources. The mantra (咒语)has become commonplace, our current way of living is selfish and unsustainable. We are wrecking the world. We are polluting the water and the air. We are killing plants and animals, and leaving a devastated planet for future generations. In other words, humanity is doomed. It is a compelling story, no doubt. It is also fundamentally wrong, and the consequences are severe. Tragically, exaggerated environmental worries―and the willingness of so many to believe them―could ultimately prevent us from finding smarter ways to actually help our planet and ensure the health of the environment for future generations. Because, our fears notwithstanding, we actually get smarter. Although Westerners were once reliant on whale oil for lighting, we never actually ran out of whales. Why High demand and rising prices for whale oil spurred a search for and investment in the 19th-century version of alternative energy. First, kerosene (煤油) from petroleum replaced whale oil. We didn’t run out of kerosene, either: electricity supplanted it because it was a superior way to light our planet. For generations, we have consistently underestimated our capacity for innovation. There was a time when we worried that all of London would be covered with horse manure because of the increasing use of horse-drawn carriages. Thanks to the invention of the car, London has 7 million inhabitants today. Manure disaster averted. In fact, would-be catastrophes have regularly been pushed aside throughout human history, and so often became of innovation and technological development. We never just continue to do the same old thing. We innovate and avoid the anticipated problems. Think of the whales, and then think of the debate over cutting emissions today. Instead of single-mindedly trying to force people to do without carbon-emitting fuels, we must recognize that we won’t make any real progress in cutting CO2 emissions until we can create affordable, efficient alternatives. We are far from that point today., much- hyped technologies such as wind and solar energy remain very expensive and inefficient compared with cheap fossil fuels. Globally, wind provides just 0.3 percent of our energy, and solar a minuscule 0.1 percent. Current technology is so inefficient that, to take just one example, if we were serious about wind power, we would have to blanket most countries with wind turbines to generate enough energy for everybody, and we would still have the massive problem of storage. We don’t know what to do when the wind doesn’t blow. Making the necessary breakthroughs will require mass improvements across many technologies. The sustainable response to global warming, then, is one that sees us get much more serious about investment into alternative-energy research and development. This has a much greater likelihood of leaving future generations at least the same opportunities as we have today. Because what, exactly, is sustainability Fourteen years ago, the United Nations World Commission on Environment and Development report "Our Common Future", chaired by Gro Harlem Brundtland, provided the most- quoted definition. Sustainable development "meets the needs of the present without compromising the ability of future generations to meet their own needs". The measure of success, then, is whether or not we give future generations the same opportunities that we have had. As humans have become richer and more educated, we have been able to enjoy more leisure time. In most developed countries, yearly working hours have fallen drastically since the end of the 19th century: today we work only about half as much as we did then. Over the last 30 years or so, total free time for men and women has increased, thanks to reductions in workload and housework. We have consistently achieved these remarkable developments by focusing on technological innovation and investment designed to create a richer future. And while major challenges remain, the future appears to hold great promise, too. By the end of the century, the U. N. estimates we will live to be 85 on average, and virtually everyone will read, write, and have access to food, water, and sanitation. That’s not too shabby. Rather than celebrating this amazing progress, many find it distasteful. Instead of acknowledging and learning from it, we bathe ourselves in guilt, fretting about our supposed unsustainable lives. Certainly many argue that while the past may have improved, surely it doesn’t matter for the future, because we are destroying the environment! But not so fast. In recent decades, air quality in wealthy countries has vastly improved. In virtually every developed country, the air is more breathable and the water is more drinkable than they were in 1970. London, renowned for centuries for its infamous smog and severe pollution, today has the cleanest air that it has had since the Middle Ages. Eventually, with increased affluence, developed countries gradually were better able to afford a cleaner environment. That is happening already today in some of the richest developing countries: air-pollution levels in Mexico City have been dropping precisely because of better technology and more wealth. Though air pollution is by far the most menacing for humans, water quality has similarly been getting better. Forests, too, are regrowing in rich countries, though still being lost in poor places where slash-and-burn is preferable to starvation. We know from experience that more prosperous countries are more able to respond to the challenges that climate change will pose. They are much more resilient to natural disasters while more able to invest in measures such as greener cities and flood protection. Yet instead of first making sure that everybody is better off and more resilient, our response to global warming has been to try to cut back carbon emissions too soon. In reality, this means reining in growth and making do with less than we could have otherwise. We forget too easily that innovation and ingenuity have solved most major problems in the past. Living sustainably means learning the lessons from history. And chief among those is that the best legacy we can leave our descendants is to ensure that they are prosperous enough to respond flexibly to the unknown challenges ahead.According to the report "Our Common Future", what does sustainable development mean A．Whether we create enough natural resources for our future generations.B．Whether we let our future generations enjoy the same opportunities as we do.C．Whether we create sufficient wealth for our future generations.D．Whether we leave a better environment to our future generations.

Which of the following is on the list of World Cultural Heritage?A. Historic centre of MacaoB. LuoyangC. KaifengD. Nanjing

21)To get A s on essay tests,you must be able to write well enough that your teacher is _ you do understand.A. guaranteedB. convincedC. acceptedD. offered

({B)}Is College Really Worth the Money ({/B)}({B)}The Real World({/B)} Este Griffith had it all figured out. When she graduated from the University of Pittsburgh in April 2001, she had her sights set on one thing: working for a labor union. The real world had other ideas. Griffith left school with not only a degree but a boatload of debt. She owed 15,000 in student loans and had racked up 4.000 in credit card debt for books, groceries and other expenses. No labor union job could pay enough to bail her out. So Griffith went to work instead for a Washington. D.C. firm that specializes in economic development. Problem solved Nope. At age 24. she takes home about 1.800 a month. 1.200 of which-disappears to pay her tent. Add another t80 a month to retire her student loans and 300 a month to whittle down her credit card balance. "You do the math." she says. Griffith has practically no money to live on. She brown-bags(自带午餐) her lunch and bikes to work. Above all, she fears she’ll never own a house or be able to retire. It’s not that she regrets getting her degree. "But they don’t tell you that the trade-off is the next ten years of your income." she says That’s precisely the deal being made by more and more college students. They’re mortgaging their futures to meet soaring tuition costs and other college expenses. Like Griffith. they’re facing a one-two punch at graduation: hefty(沉重的) student loans and smothering credit card debt not to mention a job market that, for now anyway, is dismal. "We are forcing our children to make a choice between two evils." says Elizabeth Warren. a Harvard Law professor and expert on bankruptcy. "Skip college and face a life of diminished opportunity, or go to college end face a life shackled(束缚 ) by debt."({B)}Tuition Hikes({/B)} For some time. colleges have insisted their steep tuition hikes are needed to pay for cutting-edge technologies, faculty and administration salaries, end rising health care costs. Now there’s a new culprit(犯人): shrinking state support. Caught in a severe budget crunch, many states have sharply scaled back their funding for higher education. Someone had to make up for those lost dollars. And you can guess who---especially if you live in Massachusetts, which last year hiked its tuition and fees by 24 percent, after funding dropped by 3 percent, or in Missouri, where appropriations (拨款) fell by t0 percent, but tuition rose at double that rate. About one-third of the states, in fact, have increased tuition and fees by more then 10 percent. One of those states is California, and Janet Burrell’s family is feeling the palm A bookkeeper m Torrance, Burrell has a daughter at the University of California at Davis. Meanwhile, her sons attend two-year colleges because Burrell can’t afford to have all of them in four-year schools at once. Meanwhile, even with tuition hikes, California’s community colleges are so strapped for cash they dropped thousands of classes last spring. The result: 54,000 fewer students.({B)}Collapsing Investments({/B)} Many families thought they had a surefire plan: even if tuition kept skyrocketing, they had invested enough money along the way to meet the costs. Then a funny thing happened on the way to Wall Street. Those investments collapsed with the stock market. Among the losers last year: the wildly popular "529" plans--federal tax-exempt college savings plans offered by individual states, which have attracted billions from families around the country. "We hear fr0m many parents that what they had set aside declined in value so much that they now don’t have enough to see their students through," says Penn State financial aid director Anna Griswold, who witnessed a 10 percent increase in loan applications last year. Even with a market that may be slowly recovering, it will take time, perhaps several years, for people to recoup (补偿) their losses. Nadine Sayegh is among those who didn’t have the luxury of waiting for her college nest egg to grow back. Her father had invested money toward her tuition, but a large chunk of it vanished when stocks went south. Nadine was than only partway through college. By graduation, she had taken out at least 10,000 in loans, and her mother had borrowed even more on her behalf. Now 22, Nadine is attending law school, having signed for yet more loans to pay for that. "There wasn’t any way to do it differently," she says, "and I’m not happy about it. I’ve sat down and calculated how long it will take me to pay off everything. I’ll be 35 years old." That’s if she’s very lucky: Nedine based her calculation on landing a job right out of law school that will pay her at least 120,000 a year.({B)}Dependent on Loans and Credit Cards({/B)} The American Council on Education has its own calculation that shows how students are more and more dependent on loans. In just five years, from 1995 to 2000, the median loan debt at public institutions rose from 10,342 to 15,375. Most of this comes from federal loans, which Congress made more tempting in 1992 by expanding eligibility (home equity no longer counts against your assets) and raising loan limits (a dependent undergraduate can now borrow up to 23 000 from the federal government). But students aren’t stopping there. The College Board estimates that they also borrowed 4.5 billion from private lenders in the 2000-2001 academic year, up from 1.5 billion just five years earlier. For 10ts of students, the worst of it isn’t even the weight of those direct student loans. It’s what they rack up on all those plastic cards in their wallets. As of two years ago, according to a study by lender Nellie Mae, more than eight out of ten undergrads had their Own credit cards, with the typical student carrying four. That’s no big surprise, given the in-your-face marketing by credit card companies, which set up tables on campus to entice(诱惑) students to sign up. Some colleges ban or restrict this hawking, but others give it a boost. You know those credit cards emblazoned with a school’s picture or its logo For sanctioning such a card―a must-have for some students--a college department or association gets payments ’from the issuer. Meanwhile, from freshman year to graduation, according to the Nellie Mae study, students triple the number of credit cards they own and double their debt on them. As of 2001, they were in the hole an average 2,327.({B)}A Wise Choice ({/B)} One day, Moyer sat down with his mother, Janne O’Donnell, to talk about his goal of going to law school. Don’t count on it, O’Donnell told him. She couldn’t afford the cost and Moyer doubted he could get a loan, given how much he owed already. "He said he felt like a failure," O’Donnell recalls. "He didn’t know how he had gotten into such a mess." A week later, the 22-year-old hanged himself in his bedroom, where his mother found him. O’Donnell is convinced the money pressures caused his suicide. "Sean tried to pay his debts off," she says. "And he couldn’t take it." To be sure, suicides are exceedingly rare. But despair is common, and it sometimes leads students to rethink whether college was worth it. In fact, there are quite a few jobs that don’t require a college degree, yet pay fairly well. On average, though, college graduates can expect to earn 80 percent more than those with only a high school diploma. Also, all but two of the 50 highest paying jobs (the exceptions being air traffic controllers and nuclear power reactor operators) require a four-year college degree. So foregoing a college education is often not a wise choice. Merit Mikhail, who graduated last June from the University of California, Riverside, is glad she borrowed to get through school. But she left Riverside owing 20,000 in student loans and another 7,000 in credit card debt. Now in law school, Merit hopes to become a public-interest attorney, yet she may have to postpone that goal, which bothers her. To handle her debt, she’ll probably need to start with a more lucrative (有利的) legal job. Like so many other students, Mikhail took out her loans on a kind of blind faith that she could deal with the consequences. "You say to yourself, ’I have to go into debt to make it work, and whatever it takes later, I’ll manage.’" Later has now arrived, and Mikhail is finding out the true cost of her college degree.Students get money from not only federal loans but also ______.

Boys and girls,we have some interesting and fun things for you this term.Have a good time.-|||-English Club Math Exam-|||-For the seventh grade students For the ninth grade students-|||-Time: Tuesday afternoon and Friday evening Time:on Monday,March 20th-|||-Place:Room 301 Place:Room 306-|||-Tele:77459312 PS:Top 10 will get a surprise-|||-A Talk Singing Competition-|||-For all students For the eighth grade students-|||-Time: :30-16:30, April 25th Time: on Thursday,May 23rd-|||-Place:in the school hall Place:in the music room-|||-Topic:How to Learn English Well Tele:58172352-|||-51.What activity will the school have on May 23rd?-|||-A.A singing competition. B.A math exam.-|||-C.A talk about how to learn English well. D.An English speech contest.-|||-52.Where will Tom,a ninth grade student, probably be at 3:00p.m.on April 25th?-|||-A.In Room 301. B.In Room 306.-|||-C.In the school hall. D.In the music room.-|||-53.How often do the English club members practice spoken English?-|||-A.Once a week. B.Twice a week.-|||-C.Three times a week. D.Four times a week.-|||-54.How many students will get a surprise after the math exam?-|||-A.4. B.10. C.20. D.306.-|||-55.Where may you see this notice?-|||-A.In a school. B.In a shop. C.In a hospital. D.In a restaurant.

第二部分 阅读理解(共两节,满分40分)-|||-第一节 (共15小题;每小题2分,满分30分)-|||-阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。-|||-A-|||-Skip the Line:Louvre Museum Walking Tour-|||-Experience culture and art through the ages with a small-group tour of Paris`Louvre-|||-Museum.Jump the queue and spend three hours with an English-speaking guide,seeing and-|||-learning about some of the museum`s35,000 artworks across eight themed galleries.Then-|||-enjoy time on your own to explore,viewing paintings sculptures archathite from 450-|||-BC to the 19th century.Numbers are limited to 25 on this small-group tour so that tourists-|||-can appreciate the artworks at close range.-|||-What`s Included-|||-Local guide-|||-Audio headsets-|||-Guaranteed to skip the long lines-|||-Small-group tour or private tour (if option selected)-|||-Please note:Evening tours are limited to Wednesdays and Fridays at 6:30pm.For an-|||-extra unique experience,book an evening session and wind through the quiet corridors at-|||-night,when the crowds are gone and the artworks are basking in soft light.Enjoy the tour-|||-without all the noise,and finish with great views of the Louvre`s glittery outside pyramid lit-|||-up after dusk.-|||-Additional Information-|||-Confirmation will be received at time of booking.-|||-Nowheelchair accessible.-|||-Due to heightened security measures,you may experience delays in clearing security checks-|||-when entering the museum.-|||-Travellers should have a moderate physical fitness level.-|||-Large bags,backpacks,and suitcases are not permitted in the museum.-|||-Please note that parties of 7 or more people may be split in different groups on the day of-|||-the tour at the meeting point.-|||-Cancellation Policy-|||-For a full refund(退款),cancel at least 24 hours in advance of the start date of the-|||-experience.-|||-21.What is the characteristic of the tour? C-|||-A. wheelchair-friindly. B.There are no security checks.-|||-C.Visitors needn`t wait in long lines. D.Tourists can access the most artworks.-|||-22.Why does the tour set a limit to visitor numbers? D-|||-A.To make sure of social distancing. B.To avoid damage to the museum.-|||-C.To protect the museum`s exhibits D.To ensure visitors a closer experience.-|||-23.What are the visitors advised to do? B-|||-A.Carry small bags or backpacks. B.Book evening tours to save money.-|||-C.Wear comfortable shoes and clothes. D.Gather at the meeting point on time.

2 Though facing ____ challenges, he maintained a strong belief and continued to work for the welfare of the country and the people.The ____ and dedication of countless great men in various fields endow (赋予) us with material and spiritual wealth.In the face of ____, Zhu Ziqing would rather starve to death than accept food relief from the United States.The group of artists has been working on the preservation of ____ culture and intangible cultural heritage.The new policy ____ a lot of discussion and debate among the public.he ____ of Zhang Guimei as a prominent educator has greatly impacted female education poor areas.espite all kinds of difficulties, Qian Xuesen and his team never made a(n) ____ successfully launched China's first artificial Earth satellite.Complete the following sentences with the expressions given below. Forms where necessary.credit...forpass awaydevote...toin the face ofdetermined tocast doubt ondonate...toearlier in life____ the widespread virus, medical workers around the world have showning courage, bravery, and resilience.A man ____ money ____ the local schools, hoping to improve environment.Necessary to ____ great people ____ their remarkable achievements impact on history.

A Roadmap for the Planet From the 18th through the mid-19th century, whale oil provided light to much of the Western world. At its peak, whaling employed 70,000 people and was the United States’ fifth-largest industry. The U. S. stood as the world’s foremost whale slayer. Producing millions of gallons of oil each year, the industry was widely seen as unquestionable. Without whale oil, so the thinking from the advocates even went, the world would slide backward toward darkness. By today’s standard, of course, killing whales is considered savage. Two hundred years ago there was no environmental movement to speak of. But one wonders if the whalers, finding that each year they needed to go farther to kill massive sea mammals, ever asked themselves: what will happen when we run out of whales’ Such questions today constitute the base of the ever-louder logic of sustainability. Climate activists and campaigning environmentalists argue that the industrialized countries of the world have made sizable withdrawals on nature’s fixed allowance, and unless we change our ways, and soon, we are doomed to an abrupt end. Take the recent proclamation from the United Nations, Environment Program, which argued that governments should dramatically cut back on the use of resources. The mantra (咒语)has become commonplace, our current way of living is selfish and unsustainable. We are wrecking the world. We are polluting the water and the air. We are killing plants and animals, and leaving a devastated planet for future generations. In other words, humanity is doomed. It is a compelling story, no doubt. It is also fundamentally wrong, and the consequences are severe. Tragically, exaggerated environmental worries―and the willingness of so many to believe them―could ultimately prevent us from finding smarter ways to actually help our planet and ensure the health of the environment for future generations. Because, our fears notwithstanding, we actually get smarter. Although Westerners were once reliant on whale oil for lighting, we never actually ran out of whales. Why High demand and rising prices for whale oil spurred a search for and investment in the 19th-century version of alternative energy. First, kerosene (煤油) from petroleum replaced whale oil. We didn’t run out of kerosene, either: electricity supplanted it because it was a superior way to light our planet. For generations, we have consistently underestimated our capacity for innovation. There was a time when we worried that all of London would be covered with horse manure because of the increasing use of horse-drawn carriages. Thanks to the invention of the car, London has 7 million inhabitants today. Manure disaster averted. In fact, would-be catastrophes have regularly been pushed aside throughout human history, and so often became of innovation and technological development. We never just continue to do the same old thing. We innovate and avoid the anticipated problems. Think of the whales, and then think of the debate over cutting emissions today. Instead of single-mindedly trying to force people to do without carbon-emitting fuels, we must recognize that we won’t make any real progress in cutting CO2 emissions until we can create affordable, efficient alternatives. We are far from that point today., much- hyped technologies such as wind and solar energy remain very expensive and inefficient compared with cheap fossil fuels. Globally, wind provides just 0.3 percent of our energy, and solar a minuscule 0.1 percent. Current technology is so inefficient that, to take just one example, if we were serious about wind power, we would have to blanket most countries with wind turbines to generate enough energy for everybody, and we would still have the massive problem of storage. We don’t know what to do when the wind doesn’t blow. Making the necessary breakthroughs will require mass improvements across many technologies. The sustainable response to global warming, then, is one that sees us get much more serious about investment into alternative-energy research and development. This has a much greater likelihood of leaving future generations at least the same opportunities as we have today. Because what, exactly, is sustainability Fourteen years ago, the United Nations World Commission on Environment and Development report "Our Common Future", chaired by Gro Harlem Brundtland, provided the most- quoted definition. Sustainable development "meets the needs of the present without compromising the ability of future generations to meet their own needs". The measure of success, then, is whether or not we give future generations the same opportunities that we have had. As humans have become richer and more educated, we have been able to enjoy more leisure time. In most developed countries, yearly working hours have fallen drastically since the end of the 19th century: today we work only about half as much as we did then. Over the last 30 years or so, total free time for men and women has increased, thanks to reductions in workload and housework. We have consistently achieved these remarkable developments by focusing on technological innovation and investment designed to create a richer future. And while major challenges remain, the future appears to hold great promise, too. By the end of the century, the U. N. estimates we will live to be 85 on average, and virtually everyone will read, write, and have access to food, water, and sanitation. That’s not too shabby. Rather than celebrating this amazing progress, many find it distasteful. Instead of acknowledging and learning from it, we bathe ourselves in guilt, fretting about our supposed unsustainable lives. Certainly many argue that while the past may have improved, surely it doesn’t matter for the future, because we are destroying the environment! But not so fast. In recent decades, air quality in wealthy countries has vastly improved. In virtually every developed country, the air is more breathable and the water is more drinkable than they were in 1970. London, renowned for centuries for its infamous smog and severe pollution, today has the cleanest air that it has had since the Middle Ages. Eventually, with increased affluence, developed countries gradually were better able to afford a cleaner environment. That is happening already today in some of the richest developing countries: air-pollution levels in Mexico City have been dropping precisely because of better technology and more wealth. Though air pollution is by far the most menacing for humans, water quality has similarly been getting better. Forests, too, are regrowing in rich countries, though still being lost in poor places where slash-and-burn is preferable to starvation. We know from experience that more prosperous countries are more able to respond to the challenges that climate change will pose. They are much more resilient to natural disasters while more able to invest in measures such as greener cities and flood protection. Yet instead of first making sure that everybody is better off and more resilient, our response to global warming has been to try to cut back carbon emissions too soon. In reality, this means reining in growth and making do with less than we could have otherwise. We forget too easily that innovation and ingenuity have solved most major problems in the past. Living sustainably means learning the lessons from history. And chief among those is that the best legacy we can leave our descendants is to ensure that they are prosperous enough to respond flexibly to the unknown challenges ahead.Why do we work only about half the time today as we did at the end of the 19th century A．The world’s population has increased greatly.B．The natural resources have drastically decreased.C．Technology has made workload and housework reduced.D．People understand the importance of getting relaxed.