2020年大学英语六级长篇阅读练习及答案详解(2).doc

英语六级考试真题试卷附答案和解析(第2套)Directions: For this part, you are allowed 30 minutes to write a short essay on living in thevirtual world. Try to imagine what will happen when people spe nd more and more time in thevirtual world instead of interacting in the real w orld. You are required to write at least 150 wordsbut no more than 200 words Section ADirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer. from the four choices marked A), B),C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. 注意：此部分试题请在答题卡1上作答。

Questions 1 to 4 are based on the conversation you have just heard.1. A) The project the man managed at CucinTech.B) The updating of technology at CucinTech.C)The man's switch to a new career.D) The restructuring of her company.2. A) Talented personnel.B) Strategic innovation.C) Competitive products.D) Effective promotion.3. A) Expand the market.B) Recruit more talents.C) Innovate constantly.D) Watch out for his competitors.4. A) Possible bankruptcy.B) Unforeseen difficulties.C) Conflicts within the company.D) Imitation by one's competitors.Questions 5 to 8 are based on the conversation you have just heard.5. A) The job of an interpreter.B) The stress felt by professionals.C) The importance of language proficiency.D) The best way to effective communication.6. A) Promising.B) Admirable.C) Rewarding.D) Meaningful.7. A) They all have a strong interest in language.B) They all have professional qualifications.C) They have all passed language proficiency tests.D) They have all studied cross-cultural differences.8. A) It requires a much larger vocabulary.B) It attaches more importance to accuracy.C) It is more stressful than simultaneous interpreting.D) It puts one's long-term memory under more stress..Section BDirections: In this section, you will hear two passages. At the end of each pa ssage, you willhear three or four questions. Both the passage and the questio ns will be spoken only once.After you hear a question, you must choose the b est answer from the four choices marked A),B), C) and D). Then mark the cor responding letter on Answer Sheet 1 with a single line throughthe centre. Passage OneQuestions 9 to 11 are based on the passage you have just heard.9. A) It might affect mothers' health.B) It might disturb infants' sleep.C) It might increase the risk of infants, death.D) It might increase mothers' mental distress.10. A) Mothers who breast-feed their babies have a harder time falling asleep.B) Mothers who sleep with their babies need a little more sleep each night.C) Sleeping patterns of mothers greatly affect their newborn babies' health.D) Sleeping with infants in the same room has a negative impact on mother s.11. A) Change their sleep patterns to adapt to their newborn babies'.B) Sleep in the same room but not in the same bed as their babies.C) Sleep in the same house but not in the same room as their babies.D) T ake precautions to reduce the risk of sudden infant death syndrome. Passage TwoQuestions 12 to 15 are based on the passage you have just heard. 12. A) A lot of native languages have already died out in the US.B) The US ranks first in the number of endangered languages.C) The efforts to preserve Indian languages have proved fruitless.D) More money is needed to record the native languages in the US.13. A) To set up more language schools.B) To document endangered languages.C) To educate native American children.D) To revitalise America's native languages.14. A) The US govemment's policy of Americanising Indian children.B) The failure of American Indian languages to gain an official status.C) The US government's unwillingness to spend money educating Indians.D) The long-time isolation of American Indians from the outside world.15. A) It is being utilised to teach native languages.B) It tells traditional stories during family time.C) It speeds up the extinction of native languages.D) It is widely used in language immersion schools.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by threeor four questions. The recordings will be played only once. A fter you hear a question, you mustchoose the best answer from the four choic es marked A),B),C) and D). Then mark thecorresponding letter on Answer Sh eet 1 with a single line through the centre.Recording OneQuestions 16 to 18 are based on the recording you have just heard. 16. A) It pays them up to half of their previous wages while they look for wo rk.B) It covers their mortgage payments and medical expenses for 99 weeks.C) It pays their living expenses until they find employment again.D) It provides them with the basic necessities of everyday life.17. A) Creating jobs for the huge army of unemployed workers.B) Providing training and guidance for unemployed workers.C) Convincing local lawmakers to extend unemployment benefits.D) Raising funds to help those having no unemployment insurance.18. A) To offer them loans they need to start their own businesses.B) To allow them to postpone their monthly mortgage payments.C) To create more jobs by encouraging private investments in local companies.D) To encourage big businesses to hire back workers with government subsi dies.Recording TwoQuestions 19 to 22 are based on the recording you have just heard.19. A) They measured the depths of sea water.B) They analyzed the water content.C) They explored the ocean floor.D) They investigated the ice.20. A) Eighty percent of the ice disappears in summer time.B) Most of the ice was accumulated over the past centuries.C) The ice ensures the survival of many endangered species.D) The ice decrease is more evident than previously thought.21. A) Arctic ice is a major source of the world's fresh water.B) The melting Arctic ice has drowned many coastal cities.C) The decline of Arctic ice is irreversible.D) Arctic ice is essential to human survival.22. A) It will do a lot of harm to mankind.B) There is no easy way to understand it.C) It will advance nuclear technology.D) There is no easy technological solution to it.Recording ThreeQuestions 23 to 25 are based on the recording you have just heard. 23. A) The reason why New Zealand children seem to have better self-contro l.B) The relation between children's self-control and their future success.C) The health problems of children raised by a single parent.D) The deciding factor in children's academic performance.24. A) Children raised by single parents will have a hard time in their thirties.B) Those with a criminal record mostly come from single parent families.C) Parents must learn to exercise self-control in front of their children.D) Lack of self-control in parents is a disadvantage for their children.25. A) Self-control can be improved through education.B) Self-control can improve one's financial situation.C) Self-control problems may be detected early in children.D) Self-control problems will diminish as one grows up.Section ADirections: In this section, there is a passage with ten blanks. You are requiredto select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on ,Answer Street 2 with a single line through the centre. You may not use any of the words in the bank more than once. Questions 26 to 35 are based on the following passage.The robotics revolution is set to bring humans face to face with an old fear—man-made creations as smart and capable as we are but without a moral compass. As robots take on ever more complex roles, the question naturally 26__________ : Who will be responsible when they do something wrong? Manufacturers? Users? Software writers? The answer depends on the robot. Robots already save us time, money and energy. In the future, they will improve our health care, social welfare and standard of living. The 27__________ of computational power and engineering advances will 28__________ enable lower-cost in-home care for the disabled, 29__________ use of driverless cars that may reduce drunk- and distracted-driving accidents and countless home and service-industry uses for robots, from street cleaning to food preparation. But there are 30__________ to be problems. Robot cars will crash. A drone (遥控飞行器) operator will 31__________ someone's privacy. A robotic lawn mower will run over a neighbor's cat. Juries sympathetic to the 32__________ of machines will punish entrepreneurs with company-crushing 33__________ and damages. What should governments do to protect people while 34__________ space for innovation?Big, complicated systems on which much public safety depends, like driverless cars, should be built, 35__________ and sold by manufacturers who take responsibility for ensuring safety and are liable for accidents. Governments should set safety requirements and then let insurers price the risk of the robots based on the manufacturer's driving record, not the passenger's.A. arisesB. ascendsC. boundD. combinationE. definiteF. eventuallyG. interfereH. invadeI. manifestingJ. penaltiesK. preservingL. programmedM. proximatelyN. victimsO. widespreadSection BDirections: In this section, you are going to read a passage with ten stateme nts attached to it.Each statement contains information given in one of the pa ragraphs. Identify the paragraphfrom which the information is derived. You m ay choose a paragraph more than once. Eachparagraph is marked with a lette r. Answer the questions by marking the corresponding letter onAnswer Sheet 2.Reform and Medical Costs[A] Americans are deeply concerned about the relentless rise in health care costs and health insurance premiums. They need to know if reform will help solve the problem. The answer isthat no one has an easy fix for rising medic al costs. The fundamental fix—reshaping how careis delivered and how doct ors are paid in a wasteful, abnormal system—is likely to be achievedonly thr ough trial and error and incremental (渐进的）gains.[B] The good news is that a bill just approved by the House and a bill approve d by the SenateFinance Committee would implement or test many reforms t hat should help slow the rise inmedical costs over the long term. As a report i n The New England Journal of Medicine concluded,"Pretty much every proposed innovation found in the health policy literature these days is contained in these measures."[C] Medical spending, which typically rises faster than wages and the overall economy, ispropelled by two things: the high prices charged for medical servi ces in this country and thevolume of unnecessary care delivered by doctors and hospitals, which often perform a lotmore tests and treatments than a pa tient really needs.[D] Here are some of the important proposals in the House and Senate bills t o try to address those problems, and why it is hard to know how well they wil l work.[E] Both bills would reduce the rate of growth in annual Medicare payments to hospitals,nursing homes and other providers by amounts comparable to the productivity savingsroutinely made in other industries with the help of new technologies and new ways to organize work. This proposal could save Medi care more than $100 billion over the next decade. Ifprivate plans demanded similar productivity savings from providers, and refused to letproviders shift additional costs to them, the savings could be much larger. Critics sayCongr ess will give in to lobbyists and let inefficient providers off the hook That is f ar less likelyto happen if Congress also adopts strong upaygo” rules requiring that any increase inpayments to providers be offset by new taxes or budget cuts.[F] The Senate Finance bill would impose an excise tax(消费税）on health insurance plans thatcost more than $8,000 for an individual or $21,000 for a family. It would most likely causeinsurers to redesign plans to fall beneath the threshold. Enrollees would have to pay moremoney for many ser vices out of their own pockets, and that would encourage them to thinktwice about whether an expensive or redundant test was worth it. Economists pro ject thatmost employers would shift money from expensive health benefits in to wages. The House billhas no similar tax. The final legislation should. [G] Any doctor who has wrestled with multiple forms from different insurers, or patients whohave tried to understand their own parade of statements, kn ow that simplification ought tosave money. When the health insurance indus try was still cooperating in reform efforts, itstrade group offered to provide st andardized forms for automated processing. It estimated thatstep would save hundreds of billions of dollars over the next decade. The bills would lock that pledge into law.[H] The stimulus package provided money to convert the inefficient, paper-driven medicalsystem to electronic records that can be easily viewed and tran smitted. This requires openinvestments to help doctors convert. In time it sh ould help restrain costs by eliminating redundant tests, preventing drug inte ractions, and helping doctors find the best treatments.[I] Virtually all experts agree that the fee-for-service system—doctors are rew arded for the quantity of care rather than its quality or effectiveness—is a pr imary reason that the cost ofcare is so high. Most agree that the solution is to push doctors to accept fixed payments tocare for a particular illness or for a patient's needs over a year. No one knows how to makethat happen quickly . The bills in both houses would start pilot projects within Medicare. Theyincl ude such measures as accountable care organizations to take charge of a pati ent's needswith an eye on both cost and quality, and chronic disease manag ement to make sure theseriously ill, who are responsible for the bulk of all he alth care costs, are treated properly. Forthe most part, these experiments rely on incentive payments to get doctors to try them.[J] Testing innovations do no good unless the good experiments are identifie d and expandedand the bad ones are dropped. The Senate bill would create a n independent commission tomonitor the pilot programs and recommend changes in Medicare's payment policies to urge providers to adopt reforms t hat work. The changes would have to be approved or rejected as awhole by C ongress, making it hard for narrow-interest lobbies to bend lawmakers to the ir will.[K] The bills in both chambers would create health insurance exchanges on which smallbusinesses and individuals could choose from an array of private plans and possibly a public option. All the plans would have to provide standa rd benefit packages that would be easy tocompare. To get access to millions of new customers, insurers would have a strong incentive to sell on the exch ange. And the head-to-head competition might give them a strong incentiv e to lower their prices, perhaps by accepting slimmer profit margins or dema nding better deals from providers.[L] The final legislation might throw a public plan into the competition, but thanks to thefierce opposition of the insurance industry and Republican criti cs, it might not save muchmoney. The one in the House bill would have to ne gotiate rates with providers, rather thanusing Medicare rates, as many reform ers wanted.[M] The president's stimulus package is pumping money into research to com pare how wellvarious treatments work. Is surgery, radiation or careful moni toring best for prostate (前列腺)cancer? Is the latest and most expensive cholesterol-lowering drug any bet ter than its commoncompetitors? The pending bills would spend additional m oney to accelerate this effort.[N] Critics have charged that this sensible idea would lead to rationing of car e.(That would betrue only if you believed that patients should have an unrestr ained right to treatments provento be inferior.) As a result, the bills do not r equire, as they should, that the results of thesestudies be used to set payme nt rates in Medicare.[O] Congress needs to find the courage to allow Medicare to pay preferentially for treatmentsproven to be superior. Sometimes the best treatment might b e the most expensive. But overall, we suspect that spending would come do wn through elimination of a lot of unnecessary or even dangerous tests and treatments.[P] The House bill would authorize the secretary of health and human servic es to negotiatedrug prices in Medicare and Medicaid. Some authoritative an alysts doubt that the secretarywould get better deals than private insurers alr eady get. We believe negotiation could work. Itdoes in other countries. [Q] Missing from these bills is any serious attempt to rein in malpractice cos ts. Malpracticeawards do drive up insurance premiums for doctors in high-ris k specialties, and there is some evidence that doctors engage in "defensive medicine" by performing tests and treatmentsprimarily to prove they are not negligent should they get sued.注意：此部分试题请在答题卡2上作答。

【导语】锲⽽舍之，朽⽊不折；锲⽽不舍，⾦⽯可镂。

备考需要这样持之以恒的精神。

⽆忧考为您提供了“2020年6⽉⼤学英语六级长篇阅读练习题（三篇）”，欢迎阅读参考！更多相关讯息请关注⽆忧考！2020年6⽉⼤学英语六级长篇阅读练习题篇⼀ How Ozone Pollution Works A) The weather report on the radio or TV tells you that it is going to be sunny and hot and that an orange ozone alert has been issued. What is ozone? What does an orange alert mean? Why should you be concerned about it? In this article, we will examine what ozone is, how it is produced, what health hazards it poses and what you can do to reduce ozone pollution. B) Ozone is a molecule of three oxygen atoms bound together (O3). It is unstable and highly reactive. Ozone is used as a bleach, a deodorizing agent, and a sterilization agent for air and drinking water. At low concentrations, it is toxic. Ozone is found naturally in small concentrations in the stratosphere, a layer of Earth’s upper atmosphere. In this upper atmosphere, ozone is made when ultraviolet light from the sun splits an oxygen molecule (O2), forming two single oxygen atoms. If a freed atom collides with an oxygen molecule, it becomes ozone. Stratospheric ozone has been called “good” ozone because it protects the Earth’s surface from dangerous ultraviolet light. C) Ozone can also be found in the troposphere, the lowest layer of the atmosphere. Tropospheric ozone (often termed “bad ” ozone) is man - made, a result of air pollution from internal combustion engines and power plants. Automobile exhaust and industrial emissions release a family of nitrogen oxide gases (NOx) and volatile organic compounds (VOC), by-products of burning gasoline and coal. NOx and VOC combine chemically with oxygen to form ozone during sunny, high- temperature conditions of late spring, summer and early fall. High levels of ozone are usually formed in the heat of the afternoon and early evening, dissipating during the cooler nights. D) Although ozone pollution is formed mainly in urban and suburban areas, it ends up in rural areas as well, carried by prevailing winds or resulting from cars and trucks that travel into rural areas. Significant levels of ozone pollution can be detected in rural areas as far as 250 miles downwind from urban industrial zones. E) You can make ozone test strips to detect and monitor ozone levels in your own backyard or around your school. You will need corn starch, filter paper (coffee filters work well) and potassium iodide (can be ordered from a science education supplier such as Carolina Biological Supply or Fisher Scientific). Basically, you make a paste from water, corn starch and potassium-iodide, and you paint this paste on strips of filter paper. You then expose the strips to the air for eight hours. Ozone in the air will react with the potassium iodide to change the color of the strip. You will also need to know the relative humidity, which you can get from a newspaper, weather broadcast or home weather station. F) When you inhale ozone, it travels throughout your respiratory tract. Because ozone is very corrosive, it damages the bronchioles and alveoli in your lungs, air sacs that are important for gas exchange. Repeated exposure to ozone can inflame lung tissues and cause respiratory infections. G) Ozone exposure can aggravate existing respiratory conditions such as asthma, reduce your lung function and capacity for exercise and cause chest pains and coughing. Young children, adults who are active outdoors and people with respiratory diseases are most susceptible to the high levels of ozone encountered during the summer. In addition to effects on humans, the corrosive nature of ozone can damage plants and trees. High levels of ozone can destroy agricultural crops and forest vegetation. H) To protect yourself from ozone exposure, you should be aware of the Air Quality Index (AQI) in your area every day—you can usually find it in the newspaper or on a morning weather forecast on TV or radio. You should also be familiar with the U.S. Environmental Protection Agency (EPA) guide for ozone-alert values. I) What do the numbers in the AQI mean? The AQI measures concentrations of five air pollutants: ozone, sulfur dioxide, particulate matter, carbon monoxide and nitrogen dioxide. The EPA has chosen these pollutants as criteria pollutants, but these are not all of the pollutants in the air. These concentrations are compared to a standard set out in federal law. An index value of 100 means that all of the criteria pollutants are at the maximum level that is considered safe for the majority of the population. To reduce your exposure to ozone, you should avoid exercising during afternoon and early evening hours in the summer. J) There are several ways you can help to decrease ozone pollution. Limit using your automobile during afternoon and early evening hours in the late spring, summer and early fall. Do not use gasoline-powered lawn equipment during these times. Do not fuel your car during these times. Do not light fires or outdoor grills during these times. Keep the engine of your car or boat tuned. Make sure that your tires are properly inflated. Use environmentally safe paints, cleaning and office products (some of these chemicals are sources of VOC). K) Besides personal attempts to reduce ozone pollution, the EPA has initiated more stringent air-quality standards (such as the Clean Air Act and its modifications) to reduce air pollution. Compliance with these standards by industries, manufacturers and state and local governments has significantly reduced the levels of many common air pollutants. L) With continued conservation and reduction practices, adherence to ozone-pollution warnings, research and government regulation, ozone-pollution levels should continue to fall. Perhaps future generations will not be threatened by this environmental pollutant. M) The thing that determines whether ozone is good or bad is its location. Ozone is good，when it is in the stratosphere. The stratosphere is a layer of the atmosphere starting at the level of about 6 miles (about 10 kilometers) above sea level. The stratosphere naturally contains about six parts per million of ozone, and this ozone is very beneficial because it absorbs UV radiation and prevents it from reaching us. N) Ozone is “bad” when it is at ground level. Ozone is a very reactive gas that is hard on lung tissue. It also damages plants and buildings. Any ozone at ground level is a problem. Unfortunately, chemicals in car exhaust and chemicals produced by some industries react with light to produce lots of ozone at ground level. In cities, the ozone level can rise to a point where it becomes hazardous to our health. That’s when you hear about an ozone warning on the news. 1. When ultraviolet rays from the sun separate an oxygen molecule into two single oxygen atoms in the stratosphere, the combination of a single oxygen atom and an oxygen molec u l e f o r m s o z o n e . / p > p b d s f i d = " 1 2 6 " > 0 0 2 . Y o u ca n m a k e o z o n e t e s t s t r i p sb y y o u r s e l f t o f i n d o u t a b o u t o z o n e l e v e l s i n y o u r o w n l oc a l e . / p > pb d s f i d = " 1 2 7 " > 0 0 3 . L o n g - t i m e e x p o s u r e t o o z o n e i s b a d l y h a r m f u l t o o u r r e s p i r a t o r y s y s t e m . / p > p b d s f i d = " 1 2 8 " > 0 0 4 . C h e m ic a l s i n i nd u s t r i a l w a s te g a s a n d v e h i c l e e x h a u s t r e a c t w i t h l i g h t t of o r m l o t s o f o z o n e a tg r o u n d l e v e l . / p > p b d s f i d = " 1 2 9 " > 0 0 5 . I n t e r n a l c o m b u s t i o n e n g i n e s a n d p o w e r p l a n t s c a u s e th e a r ti f i c i a l t r o p o s p h e r i c o z o n e , a l s o k n o w n a s b a d o z o n e . / p > p b d s f i d = " 1 3 0 " > 0 0 6 . O z o n e i s v e r y h e l p f u l b e c a u s e i t a b s o r b s U V r a d i a t i o n a n d s e p a r a t e s u s f r o m i t . / p > p b d s f i d = " 1 3 1 " > 0 0 7 . U s i n g g a s o l i n e - p o w e r e d l a w n e q u i p m e n t i n t h e l a t e s p r i n g , s u m m e r a n d e a r l y f a l l m a y i n c r e a s e o z o n e p o l l u t i o n . / p > p b d s f i d = " 1 3 2 " > 0 0 8 . O z o n e p o l l u t i o n o c c u r s i n u r b a n a n d s u b u r b a n a r e a s a s w e l l a s i n r u r a l a r e a s . / p > p b d s f i d = " 1 3 3 " > 0 0 9 . I n o r d e r t o d e c r e a s e o z o n e p o l l u t i o n , t h e E P A h a s s e t u p m o r e r i g o r o u s a i r - q u a l i t y s t a n d a r d s . / p > p b d s f i d = " 1 3 4 " > 0 0 1 0 . P a y c l o s e a t t e n t i o n t o t h e A i r Q u a l i t y I n d e x i n y o u r a r e a e v e r y d a y c a n k e e p y o u a w a y f r o m o z o n e e x p o s u r e . / p >。

2020年6月大学英语六级长篇阅读练习题（1）10 Ways Obama Could Fight Climate Change[A] One of the biggest surprises of President Barack Obama's inaugural address,on Monday was how much he focused on fighting climate change, spending more time on that issue than any other. "We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations," Obama said. The President pointed out that recent severe weather supplied an urgent impetus for energy innovation and staked the nation's economic future on responding to a changing climate. "We cannot cede to other nations the technology that will power new jobs and new industries--we must claim its promise," Obama said. '" That's how we will maintain our economic vitality and our national treasure--our forests and waterways; our croplands and snowcapped (山顶积雪的) peaks. That is how we will preserve our planet, commanded to our care by God. " so what could the President reasonably do to deliver on that vow? Here are ten of their suggestions:Sunset coal with new incentives and regulations.[B] "Provide incentives to phase out the oldest, most polluting power plants," said Robert Jackson, a climate scientist at Duke University. It's already happening, to some degree, as more of the nation transitions to natural gas. Earth scientist Bill Chameides, dean of Duke's Nicholas School of the Environment and a former chief scientist at the Environmental Defense Fund, urges the administration to use its Clean, Air Act authority to promulgate (颁布)carbon regulations for existing power plants like it has for new ones: "Doing that will force fuel switching from coal to natural gas. "Invest federal stimulus money in nuclear power.[C] It's hardly a perfect fuel, as accidents like Japan's Fukushima fallout have shown, but with safety precautions new nuclear plants can meaningfully offset dirtier types of energy, supporters say."Nuclear is the only short-to medium-term way to really get away from fossil fuels," said Peter Raven. President emeritus of the Missouri Botanical Garden. He said the damage done by relentless global warming will far exceed the damage done by faults in the nuclear system.Kill the Keystone pipeline.[D] The controversial Keystone XL oil pipeline is up for review again by the White House this year. "The font thing he should do to set the tone to a lowercarbon economy is to reject the Keystone pipeline, “said Raymond Pierrehum Bert, a geophysical scientist at the University of Chicago. The pipeline was never going to be a major driver of global emissions, but Pierre humbert and some other environmentalists say that by killing it the President would send a clear message about America's intent to ramp down fossil fuels.Protect the oceans by executive order.[E] Land use is complicated, but large swaths of oceans can be protected by executive order. Just as President George W. Bush designated the world's largest marine monument northwest of Hawaii in 2006. Obama could single-handedly protect other areas. National Geographic Explorer-in-Residence Sylvia Earle said the President should focus on parts of the Arctic that are under U. S. control, putting them off limits to energy production, commercial fishing, and mineral exploration. Marine sanctuaries (禁捕区) won't stop climate change, but they can give marine species a better chance of adapting to it by reducing the other man-made threats the animals face.Experiment with capturing carbon.[F] Huge untapped reserves of natural gas and oil make it unlikely that the U. S. will transition away from fossil fuels in the immediate future. Instead, said Wallace Broecker, geology professor at Columbia University's Lamont-Doherty Earth Observatory, we should attack the atmosphere's carbon surplus directly. "Obama could make available funds to build and test prototype air capture units" to capture and store CO2, said Broecker. Removing some carbon from the atmosphere could buy valuable time as policy makers and scientists explore more permanent solutions.Grow government research for new energy sources.[G] The Department of Energy has a nimble program that's tasked with innovative energy research—the Advanced Research Projects Agency-Energy. The ARPA-E funds research in biofuels, transmission,and battery storage, with an annual budget of $ 275 million. Last year, DOE officials requested at least $ 75 million more. Increasing funding for ARPA-E, said Rare Pomerance, former deputy assistant secretary of state for environment and development and currently an environmental consultant, "you get new technologies that undercut coal, oil, and gas. " Plus, he said, yon get a competitive advantage if American researchersuncover the next big idea in new energy.Tax carbon.[H] Congress would have to agree, but many climate experts say that the most meaningful way to tackle emissions is to set a price on carbon. "We should be asking people to pay the cost of putting carbon into the atmosphere as they buy the fuel," said Josh Willis, climate scientist and oceanographer at NASA's Jet Propulsion Laboratory. To gain political support for the idea, Obama would probably have to show that the tax wonld help accelerate technology, grow new industries, and pay down the deficit.Dial back the federal government's energy use.[I] With more than I. 8 million employees, $ 500 billion in annual purchasing power, and 500,000 buildings to operate, the federal government has been a leader in reducing energy use since Obama signed a 2009 executive order to cut waste. "I would urge him to keep using the power of government to promote energy conservation," said Syndonia Bret-Harte, an Arctic biologist who studies climate change at the University of Alaska, Fairbanks.Build a scientific clearinghouse for climate information.[J] "I advocate for building a better information system on what is happening and why," said Kevin Tren berth, head of the Climate Analysis Section at the U. S. National Center for Atmospheric Research. That involves compiling observations related to climate change from around the world and using the data to refine climate modeling. Think of it as a one-stop, user-friendly website that clearly demonstrates how weather data from around the globe are influenced by broader shifts in the planet's climate.Keep talking. Despite a consensus among top scientists, the world still needs some convincing on climate change.[K] A CNN poll last week found that just 49 percent of Americans agree that global warming is real and is due to human activities. "The most important thing the President can do is to build on his inaugural comments to heighten the sense of urgency about rapid climate destabilization and clarify its connection to virtually every other issue on the national agenda," said David Orr, environmental studies professor at Oberlin College. That means using the bully clergymen to show how a more volatile climate affects everything from agriculture totransportation to 21st-century warfare.46. The urge to promulgate carbon regulations is aimed at pushing power plants to replace coal by natural gas.47. Marine sanctuaries should be preserved because they help sea species adapt to climate alteration.48. The government should take the responsibility to raise Americans' awareness about climate change.49. Many climate experts believe that the most effective way to lower emission is to tax on carbon.50. Nuclear supporters argue that nuclear system failures are less challenging than global warming.51. Recent extreme weather made President Obama feel it is urgent to address climate change.52. Keystone pipeline should be rejected because it is a signal to reduce fossil fuels.53. Since Obama signed a 2009 executive order to cut waste, the federal government has taken the lead in saving energy.54. Lower carbon emission will be most likely to happen if research in new energy resources succeeds.55. Compared with turning to new energy, America prefers carbon capture and store as a temporary measure.2020年6月大学英语六级长篇阅读练习题（2）How to Make Attractive and Effective PowerPoint PresentationsA) Microsoft PowerPoint has dramatically changed the way in which academic and business presentations are made. This article outlines few tips on making more effective and attractive PowerPoint presentations.The TextB) Keep the wording clear and simple. Use active, visual language. Cut unnecessary words—a good rule of thumb is to cut paragraphs down to sentences, sentences into phrases, and phrases into key words.Limit the number of words and lines per slide. Try the Rule of Five-five words per line, five lines per slide. If too much text appears on one slide, use the AutoFit feature to split it between two slides. Click within the placeholder to display the AutoFit Options button (its symbol is two horizontal lines with arrows above and below), then click on the button and choose Split Text between Two Slides from the submenu.C) Font size for titles should be at least 36 to 40, while the text body should not be smaller than e only two font styles per slide—one for the title and the other for the text. Choose two fonts that visually contrast with each other. Garamond Medium Condensed and Impact are good for titles, while Garamond or Tempus Sans can be used for the text body.D) Embed the fonts in your presentation, if you are not sure whether the fonts used in the presentation are present in the computer that will be used for the presentation. To embed the fonts: (1) On the File menu, click Save As. (2) On the toolbar, click Tools, click Save Options, select the Embed TrueType Fonts check box, and then select Embed characters in use only.E) Use colors sparingly; two to three at most. You may use one color for all the titles and another for the text body. Be consistent from slide to slide. Choose a font color that contrasts well with the background.F) Capitalizing the first letter of each word is good for the title of slides and suggests a more formal situation than having just the first letter of the first word capitalized. In bullet point lines, capitalize the first word and no other words unless they normally appear capped. Upper and lower case lettering is more readable than all capital letters. Moreover, current styles indicate that using allcapital letters means you are shouting. If you have text that is in the wrong case, select the text, and then click Shift+F3 until it changes to the case style that you like. Clicking Shift+F3 toggles the text case between ALL CAPS, lower case, and Initial Capital styles.G) Use bold or italic typeface for emphasis. Avoid underlining, it clutters up the presentation.Don’t center bulleted lists or text. It is confusing to read. Left align unless you have a good reason not to. Run “spell check” on your show when finished.The BackgroundH) Keep the background consistent. Simple, light textured backgrounds work well. Complicated textures make the content hard to read. If you are planning to use many clips in your slides, select a white background. If the venue of your presentation is not adequately light-proof, select a dark-colored background and use any light color for text. Minimize the use of “bells and whistles” such as sound effects, “flying words” and multiple transitions. Don’t use red in any fonts or backgrounds. It is an emotionally overwhelming color that is difficult to see and read.The ClipsI) Animations are best used subtly; too much flash and motion can distract and annoy viewers. Do not rely too heavily on those images that were originally loaded on your computer with the rest of Office. You can easily find appropriate clips on any topic through Google Images. While searching for images, do not use long search phrases as is usually done while searching the web-use specific words.J) When importing pictures, make sure that they are smaller than two megabytes and are in a .jpg format. Larger files can slow down your show. Keep graphs, charts and diagrams simple, if possible. Use bar graphs and pie charts instead of tables of data. The audience can then immediately pick up the relationships.The PresentationK) If you want your presentation to directly open in the slide show view, save it as a slide show file using the following steps. Open the presentation you want to save as a slide show. On the File menu, click Save As. In the Save astype list, click PowerPoint Show. Your slide show file will be saved with a ppt file extension. When you double-click on this file, it will automatically start your presentation in slide show view. When you’re done, PowerPoint automatically closes and you return to the desktop. If you want to edit the slide show file, you can always open it from PowerPoint by clicking Open on the File menu.L) Look at the audience, not at the slides, whenever possible. If using a laser pointer, don’t move it too fast. For examp le, if circling a number on the slide, do it slowly. Never point the laser at the audience. Black out the screen (use “B” on the keyboard) after the point has been made, to put the focus on you. Press the key again to continue your presentation.M) You can use the shortcut command [Ctrl]P to access the Pen tool during a slide show. Click with your mouse and drag to use the Pen tool to draw during your slide show. To erase everything you’ve drawn, press the E key. To turn off the Pen tool, press [Esc] once.MiscellaneousN) Master Slide Set-Up: The “master slide” will allow you to make changes that are reflected on every slide in your presentation. You can change fonts, colors, backgrounds, headers, and footers at the “master slide” level. First, go to the “View” menu. Pull down the “Master” menu. Select the “slide master” menu. You may now make changes at this level that meet your presentation needs.1. The ways in which academic and business presentations are made have been changed by Microsoft PowerPoint.2. When making the PowerPoint, the wording of the text should not be complicated.3. In each slide, the font styles for the title and the text should contrast with each other.4. A more formal situation is capitalizing the first letter of the first word.5. Centering bulleted lists or text can not help to read.6. Sound effects should be used as less frequently as possible.7. When importing pictures, make sure that they are smaller than two megabytes.8. When making the presentation, you should look at the audience as possible as you can.9. Pressing the E key can help you to erase everything you've drawn.10. In order to meet your presentation needs, you can make changes at the “slide master”level.2020年6月大学英语六级长篇阅读练习题（3）Paper--More than Meets the EyeA) We are surrounded by so much paper and card that it is easy to forget just how complex it is. There are many varieties and grades of paper materials, and whilst it is fairly easy to spot the varieties, it is far more difficult to spot the grades.B) It needs to be understood that most paper and card is manufactured for a specific purpose, so that whilst the corn-flake packet may look smart, it is clearly not something destined for the archives. It is made to look good, but only needs a limited life span. It is also much cheaper to manufacture than high grade card.C) Paper can be made from an almost endless variety of cellulose-based material which will include many woods, cottons and grasses or which papyrus is an example and from where we get the word "paper". Many of these are very specialized, but the preponderance of paper making has been from soft wood and cotton or rags, with the bulk being wood-based.Paper from WoodD) In order to make wood into paper it needs to be broken down into fine strands. Firstly by powerful machinery and then boiled with strong alkalies such as caustic soda, until a fine pulp of cellulose fibers is produced. It is from this pulp that the final product is made, relying on the bonding together of the cellulose into layers. That, in a very small nutshell, is the essence of paper making from wood. However, the reality is rather more complicated. In order to give us our white paper and card, the makers will add bleach and other materials such as china clay and additional chemicals.E) A further problem with wood is that it contains a material that is not cellulose. Something called lignin. This is essential for the tree since it holds the cellulose fibres together, but if it is incorporated into the manufactured paper it presents archivists with a problem. Lignin eventually breaks down and releases acid products into the paper. This will weaken the bond between the cellulose fibers and the paper will become brittle and look rather brown and careworn. We have all seen this in old newspapers and cheap paperback books. It has been estimated that most paper back books will have a life of not greaterthan fifty years. Not what we need for our archives.F) Since the lignin can be removed from the paper pulp during manufacture, the obvious question is "why is it left in the paper?" The answer lies in the fact that lignin makes up a considerable part of the tree. By leaving the lignin in the pulp a papermaker can increase his paper yield from a tree to some 95%. Removing it means a yield of only 35%. It is clearly uneconomic to remove the lignin for many paper and card applications.G) It also means, of course, that lignin-free paper is going to be more expensive, but that is nevertheless what the archivist must look for in his supplies. There is no point whatsoever in carefully placing our valuable artifacts in paper or card that is going to hasten their demise. Acid is particularly harmful to photographic materials, causing them to fade and is some cases simply vanish!H) So, how do we tell a piece of suitable paper or card from one that is unsuitable? You cannot do it by simply looking, and rather disappointingly, you cannot always rely on the label. "Acid-free" might be true inasmuch as a test on the paper may indicate that it is a neutral material at this time. But lignin can take years before it starts the inevitable process of breaking down, and in the right conditions it will speed up enormously.I) Added to this, as I have indicated earlier, paper may also contain other materials added during manufacture such as bleach, china clay, chemical whiteners and size. This looks like a bleak picture, and it would be but for the fact that there are suppliers who will guarantee the material that they sell. If you want to be absolutely sure that you are storing in, or printing on, the correct material then this is probably the only way.J) Incidentally, acids can migrate from material to material. Lining old shoe boxes with good quality acid-free paper will do little to guard the contents. The acid will get there in the end.Paper from RagK) Paper is also commonly made from cotton and rag waste. This has the advantage of being lignin-free, but because there is much less cotton and rag than trees, it also tends to be much more expensive than wood pulp paper. You will still need to purchase from a reliable source though, since even rag paperand card can contain undesirable additives.L) A reliable source for quality rag papers is a recognized art stockiest. Many water color artists insist on using only fine quality rag paper and board.M) The main lesson to learn from this information is that you cannot rely on purchasing archival materials from the high street. The only safe solution is to purchase from specialist suppliers. It may cost rather more, but in the end you will know that your important and valuable data and images have the best home possible.1. The corn-flake packet is cheaper than high grade card.2. There are a lot of materials which can be used for making paper, but the superiority ones are soft wood, cotton and rags.3. During the whole manufacturing process, the final product is made froma pulp of cellulose fibres.4. In order to make white paper and card, the makers will add bleach.5. Liguin is essential for the tree but it will make paper easy to break.6. Many paper producers will preserve lignin during manufacture, because leaving the lignin will make more paper from a tree.7. Acid is particularly harmful to photographic materials.8. If the lignin is removed from the paper, the paper will be more expensive.9. Although free of lignin, paper made from cotton and rag waste can also cost more money than wood pulp paper because there is much less cotton and rag than trees.10. What we can learn from "Paper from Rag" is that you had better buy archival materials from specialist suppliers.2020年6月大学英语六级长篇阅读练习题（4）Definitions of ObesityA: How does one define when a person is considered to be obese and not just somewhat overweight? Height-weight tables give an approximate guideline as to whether one is simply overweight or has passed into the obese stage.B: The World Health Organization recommends using a formula that takes into account a person's height and weight. The "Body Mass Index" (BMI) is calculated by dividing the person's weight in kilograms by the square of their height in meters, and is thus given in units of kg/m2. A BMI of 18.5-24.9 is considered to be the healthiest. A BMI of between 25 and 29.9 is considered to be overweight, while a BMI of over 30 is considered to be obese.C: However, it is recognized that this definition is limited as it does not take into account such variables as age, gender and ethnic origin, the latter being important as different ethnic groups have very different fat distributions. Another shortcoming is that it is not applicable to certain very muscular people such as athletes and bodybuilders, who can also have artificially high BMIs. Agencies such as the National Cholesterol Education Program (NCEP) in the USA and the International Diabetes Foundation (IDF) are starting to define obesity in adults simply in terms of waist circumference.Health Effects of ObesityD: Over 2000 years ago, the Greek physician Hippocrates wrote that "persons who are naturally very fat are apt to die earlier than those who are slender". This observation remains very true today. Obesity has a major impact on a person's physical, social and emotional well-being. It increases the risk of developing diabetes mellitus type 2 ("mature onset diabetes") and also makes Type 2 diabetes more difficult to control. Thus weight loss improves the levels of blood glucose and blood fats, and reduces blood pressure. The association between obesity and coronary heart disease is also well-known.CancerE: Furthermore, in 2001 medical researchers established a link between being overweight and certain forms of cancer, and estimated that nearly 10,000 Britons per year develop cancer as a result of being overweight. This figure was made up of 5,893 women and 3,220 men, with the strongest associations beingwith breast and colon cancers. However, it is thought that being overweight may also increase the risk of cancer in the reproductive organs for women and in the prostate gland for men.F: The link between breast cancer and nutritional status is thought to be due to the steroid hormones oestrogen and progesterone, which are produced by the ovaries, and govern a woman's menstrual cycle. Researchers have found that the more a woman eats, or the more sedentary her lifestyle, the higher are the concentrations of progesterone. This link could explain why women from less affluent countries have lower rates of breast cancer. Women from less affluent nations tend to eat less food and to lead lifestyles which involve more daily movement. This lowers their progesterone level, resulting in lower predisposition to breast cancer.G: The Times newspaper, in 2002 reported that obesity was the main avoidable cause of cancer among non-smokers in the Western world!AgingH: Research published by St Thomas' Hospital, London, UK in 2005 showed a correlation between body fat and aging, to the extent that being obese added 8.8 years to a woman's biological age. The effect was exacerbated by smoking, and a non-overweight woman who smokes 20 cigarettes a day for 20 years added 7.4 years to their biological age. The combination of being obese and a smoker added at least ten years to a woman’s biological age, and although the study only involved women, the lead researcher Professor Tim Spector believes the finding would also apply to men.I: The aging effect was determined by measuring the length of telomeres, tiny "caps" on the ends of chromosomes, which help protect the DNA from the ageing process. Indeed, telomeres have been dubbed the "chromosomal clock" because, as an organism ages, they become progressively shorter, and can be used to determine the age of the organism. Beyond a certain point, the telomere becomes so short that it is no longer able to prevent the DNA of the chromosome from falling apart. It is believed that excess body fat, and the chemicals present in tobacco smoke release free radicals which trigger inflammation. Inflammation causes the production of white blood cells which increases the rate of erosion of telomeres.DementiaJ: Recent research (2005) conducted in the USA shows that obesity in middle age is linked to an increased risk of dementia, with obese people in their40s being 74% more likely to develop dementia compared to those of normal weight. For those who are merely overweight, the lifetime risk of dementia risk was 35% higher.K: Scientists from the Aging Research Centre at the Karolinska Institute in Sweden have been able to take information such as age, number of years in education, gender, body mass index, blood pressure level, physical activity and genetic factors, assigning each a risk score. They then used this information to devise a predictive test for dementia. This test will enable people at risk, for the first time, to be able to affect lifestyle changes which will reduce their risk ofcontracting dementia.Other ProblemsL: The world-wide upsurge in obesity, particularly in children, is of major economic concern, liable to drain economies. Of further concern is that research conducted in Australia and published in 2006, shows that up to one third of breech pregnancies were undetected by the traditional "palpation" examination, the danger being greatest for those women who are overweight or obese—a growing proportion of mothers. This means that such women are not getting the treatment required to turn the baby around in time for the birth, and in many cases require an emergency Caesarean section.M: This is a true health-care crisis, far bigger than Severe Acute Respiratory Syndrome (SARS) and ultimately, even bigger than AIDS.1. You can judge whether one is simply overweight or has passed into the obese stage according to the height-weight table.2. Using the "Body Mass Index"to define a person's weight ideal is limited, because it does not takes into account many variables such as age, gender and ethnic origin.3. A person's emotional well-being would be affected by obesity.4. Obesity has something to do with cancer in the prostate gland for man.5. Women from less affluent nations tend to have much less breast cancer.6. A non-overweight woman who smokes 20 cigarettes a day for 20 years added7.4 years to her biological age.7. The excess body fat, like the chemicals present in tobacco smoke, can lead to inflammation.8. Obese people in middle age run an increased risk of dementia .9. The predictive test for dementia will help people to affect lifestyle changes that will reduce their risk of contracting dementia.10. The world-wide upsurge in obesity, particularly in children, will possibly drain economies.。

2020年12月英语六级阅读真题及答案2020年12月英语六级阅读真题及答案第一套：第二套第三套选词填空As it is，sleep is so undervalued that getting by on fewer hours has become a badge on Plus， we live in a culture that（36） to the late neighter， from 24 hour grocery store to ? shopping site that never close。

It’s no surprise，then， that more than half of American adults get the 7 to 9 hours of shut-eye every night as （37）by sleep experts。

Whether or not we can catch up on sleep on the weekend，say- is a hotly （38） among sleep researchers。

The latest evidence suggests that while it isn’t （39）， it might ? when Liu， the UCLA sleep researcher and professor of medicine， brought （40） sleep-rest people into the lab for a weekend of sleep during which they lagged about 10 hours per night。

showed （41）in the ability of insulin（胰岛素）to process blood sugar。

That suggests up sleep may undo some but not all of the damage that sleep （42） causes， which is encouraging ? given how many adults don’t get the hours they need each night。

英语六级考试真题试卷附答案和解析(第2套)Directions: For this part, you are allowed 30 minutes to write a short essay on living in thevirtual world. Try to imagine what will happen when people spe nd more and more time in thevirtual world instead of interacting in the real w orld. You are required to write at least 150 wordsbut no more than 200 words Section ADirections: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer. from the four choices marked A), B),C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. 注意：此部分试题请在答题卡1上作答。

Questions 1 to 4 are based on the conversation you have just heard.1. A) The project the man managed at CucinTech.B) The updating of technology at CucinTech.C)The man's switch to a new career.D) The restructuring of her company.2. A) Talented personnel.B) Strategic innovation.C) Competitive products.D) Effective promotion.3. A) Expand the market.B) Recruit more talents.C) Innovate constantly.D) Watch out for his competitors.4. A) Possible bankruptcy.B) Unforeseen difficulties.C) Conflicts within the company.D) Imitation by one's competitors.Questions 5 to 8 are based on the conversation you have just heard.5. A) The job of an interpreter.B) The stress felt by professionals.C) The importance of language proficiency.D) The best way to effective communication.6. A) Promising.B) Admirable.C) Rewarding.D) Meaningful.7. A) They all have a strong interest in language.B) They all have professional qualifications.C) They have all passed language proficiency tests.D) They have all studied cross-cultural differences.8. A) It requires a much larger vocabulary.B) It attaches more importance to accuracy.C) It is more stressful than simultaneous interpreting.D) It puts one's long-term memory under more stress..Section BDirections: In this section, you will hear two passages. At the end of each pa ssage, you willhear three or four questions. Both the passage and the questio ns will be spoken only once.After you hear a question, you must choose the b est answer from the four choices marked A),B), C) and D). Then mark the cor responding letter on Answer Sheet 1 with a single line throughthe centre. Passage OneQuestions 9 to 11 are based on the passage you have just heard.9. A) It might affect mothers' health.B) It might disturb infants' sleep.C) It might increase the risk of infants, death.D) It might increase mothers' mental distress.10. A) Mothers who breast-feed their babies have a harder time falling asleep.B) Mothers who sleep with their babies need a little more sleep each night.C) Sleeping patterns of mothers greatly affect their newborn babies' health.D) Sleeping with infants in the same room has a negative impact on mother s.11. A) Change their sleep patterns to adapt to their newborn babies'.B) Sleep in the same room but not in the same bed as their babies.C) Sleep in the same house but not in the same room as their babies.D) T ake precautions to reduce the risk of sudden infant death syndrome. Passage TwoQuestions 12 to 15 are based on the passage you have just heard. 12. A) A lot of native languages have already died out in the US.B) The US ranks first in the number of endangered languages.C) The efforts to preserve Indian languages have proved fruitless.D) More money is needed to record the native languages in the US.13. A) To set up more language schools.B) To document endangered languages.C) To educate native American children.D) To revitalise America's native languages.14. A) The US govemment's policy of Americanising Indian children.B) The failure of American Indian languages to gain an official status.C) The US government's unwillingness to spend money educating Indians.D) The long-time isolation of American Indians from the outside world.15. A) It is being utilised to teach native languages.B) It tells traditional stories during family time.C) It speeds up the extinction of native languages.D) It is widely used in language immersion schools.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by threeor four questions. The recordings will be played only once. A fter you hear a question, you mustchoose the best answer from the four choic es marked A),B),C) and D). Then mark thecorresponding letter on Answer Sh eet 1 with a single line through the centre.Recording OneQuestions 16 to 18 are based on the recording you have just heard. 16. A) It pays them up to half of their previous wages while they look for wo rk.B) It covers their mortgage payments and medical expenses for 99 weeks.C) It pays their living expenses until they find employment again.D) It provides them with the basic necessities of everyday life.17. A) Creating jobs for the huge army of unemployed workers.B) Providing training and guidance for unemployed workers.C) Convincing local lawmakers to extend unemployment benefits.D) Raising funds to help those having no unemployment insurance.18. A) To offer them loans they need to start their own businesses.B) To allow them to postpone their monthly mortgage payments.C) To create more jobs by encouraging private investments in local companies.D) To encourage big businesses to hire back workers with government subsi dies.Recording TwoQuestions 19 to 22 are based on the recording you have just heard.19. A) They measured the depths of sea water.B) They analyzed the water content.C) They explored the ocean floor.D) They investigated the ice.20. A) Eighty percent of the ice disappears in summer time.B) Most of the ice was accumulated over the past centuries.C) The ice ensures the survival of many endangered species.D) The ice decrease is more evident than previously thought.21. A) Arctic ice is a major source of the world's fresh water.B) The melting Arctic ice has drowned many coastal cities.C) The decline of Arctic ice is irreversible.D) Arctic ice is essential to human survival.22. A) It will do a lot of harm to mankind.B) There is no easy way to understand it.C) It will advance nuclear technology.D) There is no easy technological solution to it.Recording ThreeQuestions 23 to 25 are based on the recording you have just heard. 23. A) The reason why New Zealand children seem to have better self-contro l.B) The relation between children's self-control and their future success.C) The health problems of children raised by a single parent.D) The deciding factor in children's academic performance.24. A) Children raised by single parents will have a hard time in their thirties.B) Those with a criminal record mostly come from single parent families.C) Parents must learn to exercise self-control in front of their children.D) Lack of self-control in parents is a disadvantage for their children.25. A) Self-control can be improved through education.B) Self-control can improve one's financial situation.C) Self-control problems may be detected early in children.D) Self-control problems will diminish as one grows up.Section ADirections: In this section, there is a passage with ten blanks. You are requiredto select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on ,Answer Street 2 with a single line through the centre. You may not use any of the words in the bank more than once. Questions 26 to 35 are based on the following passage.The robotics revolution is set to bring humans face to face with an old fear—man-made creations as smart and capable as we are but without a moral compass. As robots take on ever more complex roles, the question naturally 26__________ : Who will be responsible when they do something wrong? Manufacturers? Users? Software writers? The answer depends on the robot. Robots already save us time, money and energy. In the future, they will improve our health care, social welfare and standard of living. The 27__________ of computational power and engineering advances will 28__________ enable lower-cost in-home care for the disabled, 29__________ use of driverless cars that may reduce drunk- and distracted-driving accidents and countless home and service-industry uses for robots, from street cleaning to food preparation. But there are 30__________ to be problems. Robot cars will crash. A drone (遥控飞行器) operator will 31__________ someone's privacy. A robotic lawn mower will run over a neighbor's cat. Juries sympathetic to the 32__________ of machines will punish entrepreneurs with company-crushing 33__________ and damages. What should governments do to protect people while 34__________ space for innovation?Big, complicated systems on which much public safety depends, like driverless cars, should be built, 35__________ and sold by manufacturers who take responsibility for ensuring safety and are liable for accidents. Governments should set safety requirements and then let insurers price the risk of the robots based on the manufacturer's driving record, not the passenger's.A. arisesB. ascendsC. boundD. combinationE. definiteF. eventuallyG. interfereH. invadeI. manifestingJ. penaltiesK. preservingL. programmedM. proximatelyN. victimsO. widespreadSection BDirections: In this section, you are going to read a passage with ten stateme nts attached to it.Each statement contains information given in one of the pa ragraphs. Identify the paragraphfrom which the information is derived. You m ay choose a paragraph more than once. Eachparagraph is marked with a lette r. Answer the questions by marking the corresponding letter onAnswer Sheet 2.Reform and Medical Costs[A] Americans are deeply concerned about the relentless rise in health care costs and health insurance premiums. They need to know if reform will help solve the problem. The answer isthat no one has an easy fix for rising medic al costs. The fundamental fix—reshaping how careis delivered and how doct ors are paid in a wasteful, abnormal system—is likely to be achievedonly thr ough trial and error and incremental (渐进的）gains.[B] The good news is that a bill just approved by the House and a bill approve d by the SenateFinance Committee would implement or test many reforms t hat should help slow the rise inmedical costs over the long term. As a report i n The New England Journal of Medicine concluded,"Pretty much every proposed innovation found in the health policy literature these days is contained in these measures."[C] Medical spending, which typically rises faster than wages and the overall economy, ispropelled by two things: the high prices charged for medical servi ces in this country and thevolume of unnecessary care delivered by doctors and hospitals, which often perform a lotmore tests and treatments than a pa tient really needs.[D] Here are some of the important proposals in the House and Senate bills t o try to address those problems, and why it is hard to know how well they wil l work.[E] Both bills would reduce the rate of growth in annual Medicare payments to hospitals,nursing homes and other providers by amounts comparable to the productivity savingsroutinely made in other industries with the help of new technologies and new ways to organize work. This proposal could save Medi care more than $100 billion over the next decade. Ifprivate plans demanded similar productivity savings from providers, and refused to letproviders shift additional costs to them, the savings could be much larger. Critics sayCongr ess will give in to lobbyists and let inefficient providers off the hook That is f ar less likelyto happen if Congress also adopts strong upaygo” rules requiring that any increase inpayments to providers be offset by new taxes or budget cuts.[F] The Senate Finance bill would impose an excise tax(消费税）on health insurance plans thatcost more than $8,000 for an individual or $21,000 for a family. It would most likely causeinsurers to redesign plans to fall beneath the threshold. Enrollees would have to pay moremoney for many ser vices out of their own pockets, and that would encourage them to thinktwice about whether an expensive or redundant test was worth it. Economists pro ject thatmost employers would shift money from expensive health benefits in to wages. The House billhas no similar tax. The final legislation should. [G] Any doctor who has wrestled with multiple forms from different insurers, or patients whohave tried to understand their own parade of statements, kn ow that simplification ought tosave money. When the health insurance indus try was still cooperating in reform efforts, itstrade group offered to provide st andardized forms for automated processing. It estimated thatstep would save hundreds of billions of dollars over the next decade. The bills would lock that pledge into law.[H] The stimulus package provided money to convert the inefficient, paper-driven medicalsystem to electronic records that can be easily viewed and tran smitted. This requires openinvestments to help doctors convert. In time it sh ould help restrain costs by eliminating redundant tests, preventing drug inte ractions, and helping doctors find the best treatments.[I] Virtually all experts agree that the fee-for-service system—doctors are rew arded for the quantity of care rather than its quality or effectiveness—is a pr imary reason that the cost ofcare is so high. Most agree that the solution is to push doctors to accept fixed payments tocare for a particular illness or for a patient's needs over a year. No one knows how to makethat happen quickly . The bills in both houses would start pilot projects within Medicare. Theyincl ude such measures as accountable care organizations to take charge of a pati ent's needswith an eye on both cost and quality, and chronic disease manag ement to make sure theseriously ill, who are responsible for the bulk of all he alth care costs, are treated properly. Forthe most part, these experiments rely on incentive payments to get doctors to try them.[J] Testing innovations do no good unless the good experiments are identifie d and expandedand the bad ones are dropped. The Senate bill would create a n independent commission tomonitor the pilot programs and recommend changes in Medicare's payment policies to urge providers to adopt reforms t hat work. The changes would have to be approved or rejected as awhole by C ongress, making it hard for narrow-interest lobbies to bend lawmakers to the ir will.[K] The bills in both chambers would create health insurance exchanges on which smallbusinesses and individuals could choose from an array of private plans and possibly a public option. All the plans would have to provide standa rd benefit packages that would be easy tocompare. To get access to millions of new customers, insurers would have a strong incentive to sell on the exch ange. And the head-to-head competition might give them a strong incentiv e to lower their prices, perhaps by accepting slimmer profit margins or dema nding better deals from providers.[L] The final legislation might throw a public plan into the competition, but thanks to thefierce opposition of the insurance industry and Republican criti cs, it might not save muchmoney. The one in the House bill would have to ne gotiate rates with providers, rather thanusing Medicare rates, as many reform ers wanted.[M] The president's stimulus package is pumping money into research to com pare how wellvarious treatments work. Is surgery, radiation or careful moni toring best for prostate (前列腺)cancer? Is the latest and most expensive cholesterol-lowering drug any bet ter than its commoncompetitors? The pending bills would spend additional m oney to accelerate this effort.[N] Critics have charged that this sensible idea would lead to rationing of car e.(That would betrue only if you believed that patients should have an unrestr ained right to treatments provento be inferior.) As a result, the bills do not r equire, as they should, that the results of thesestudies be used to set payme nt rates in Medicare.[O] Congress needs to find the courage to allow Medicare to pay preferentially for treatmentsproven to be superior. Sometimes the best treatment might b e the most expensive. But overall, we suspect that spending would come do wn through elimination of a lot of unnecessary or even dangerous tests and treatments.[P] The House bill would authorize the secretary of health and human servic es to negotiatedrug prices in Medicare and Medicaid. Some authoritative an alysts doubt that the secretarywould get better deals than private insurers alr eady get. We believe negotiation could work. Itdoes in other countries. [Q] Missing from these bills is any serious attempt to rein in malpractice cos ts. Malpracticeawards do drive up insurance premiums for doctors in high-ris k specialties, and there is some evidence that doctors engage in "defensive medicine" by performing tests and treatmentsprimarily to prove they are not negligent should they get sued.注意：此部分试题请在答题卡2上作答。

2020年大学英语六级阅读理解试题及答案（卷二）Ifambition is to be well regarded, the rewards of ambition—wealth,distinction, control over one's destiny—must be deemedworthy of the sacrifices made on ambition's behalf. If the tradition ofambition is to have vitality, it must be widely shared; and it especially mustbe highly regarded by people who are themselves admired, the educated not leastamong them. In an odd way, however, it is the educated who have claimed to havegiven up on ambition as an ideal. What is odd is that they have perhaps mostbenefited from ambition—if not always their own then that of their parents and grandparents.There is a heavy note of hypocrisy in this, a case of closing the barn doorafter the horses have escaped―with the educated themselves riding on them。

Certainly people do not seem less interested in success and itssigns now than formerly. Summer homes, European travel, BMWs—thelocations, place names and name brands may change, but such items do not seemless in demand today than a decade or two years ago. What has happened is thatpeople cannot confess fully to their dreams, as easily and openly as once theycould, lest they be thought pushing, acquisitive and vulgar. Instead, we aretreated to fine hypocritical spectacles, which now more than ever seem in amplesupply: the critic of American materialism with a Southampton summer home; thepublisher of radical books who takes his meals in three-star restaurants; thejournalistadvocating participatory democracy in all phases of life, whose own childrenare enrolled in private schools. For such people and many more perhaps not soexceptional, the proper formulation is," Succeed at all costs but avoidappearing ambitious."The attacks on ambition are many and come from various angles; itspublic defenders are few and unimpressive, where they are not extremelyunattractive. As a result, the support for ambition as a healthy impulse, aquality to be admired and fixed in the mind of the young, is probably lowerthan it has ever been in the United States. This does not mean that ambition isat an end, that people no longer feel its stirrings and promptings, but onlythat, no longer openly honored, it is less openly professed. Consequencesfollow from this, of course, some of which are that ambition is drivenunderground, or made sly. Such, then, is the way things stand: on the leftangry critics, on the right stupid supporters, and in the middle, as usual, themajority of earnest people trying to get on in life。

2020年12月英语六级考试阅读真题及答案2020年12月英语六级考试阅读真题及答案Section ADirections： In this section, there is a short passage with 5 questions or incomplete statements. Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words. Please write your answers on Answer Sheet 2.Questions 47 to 54 are based on the following passage.A key process in interpersonal interaction is that of social comparison, in that we evaluate ourselves in terms of how we compare to others. In particular, we engage in two types of comparison. First, we decide whether we are superior or inferior to others on certain dimensions, such as attractiveness, intelligence, popularity, etc. Here, the important aspect is to compare with an appropriate reference group. For example, modest joggers should not compare their performance with Olympic standard marathon (马拉松) runners. Second, we judge the extent to which we are the same as or different from others. At certain stages of life, especially adolescence, the pressure to be seen as similar to peers is immense. Thus, wearing the right brand of clothes or shoes may be of the utmost importance. We also need to know whether our thoughts, beliefs and ideas are in line with those of other people. This is part of the process of self-validation whereby we employ self-disclosures to seek support for our self-concept.People who do not have access to a good listener may not only be denied the opportunity to heighten their self-awareness, but they are also denied valuable feedback as tothe validity and acceptability of their inner thoughts and feelings. By discussing these with others, we receivefeedback as to whether these are experiences which othershave as well, or whether they are less common. Furthermore,by gauging the reactions to our self-disclosures we learnwhat types are acceptable or unacceptable with particular people and in specific situations. On occasions it is thefear that certain disclosures may be unacceptable to familyor friends that motivates an individual to seek professional help. Counsellors will be familiar with client statementssuch as：“I just couldn’t talk about this to my husband.”, “I really can’t let my mother know my true feelings.” Another aspect of social comparison in the counsellingcontext relates to a technique known as normalising. This is the process whereby helpers provide reassurance to clientsthat what they are experiencing is not abnormal or atypical (非典型的), but is a normal reaction shared by others when facing such circumstances. Patient disclosure, facilitated by the therapist, seems also to facilitate the process of normalising.47. To evaluate ourselves, the author thinks it important for us to compare ourselves with _______.48. During adolescence, people generally feel an immense pressure to appear _______.49. It is often difficult for people to heighten theirself-awareness without _______.50. What can people do if they find what they think or say unacceptable to family or friends?51. Counsellors often assure their clients that what they experience themselves is only _______.参考答案47. others答案：关键词 evaluate ourselves迅速定位到第一段第一句话所以答案是 others48. similar to peers答案：关键词 adolescence迅速定位到第一段中间所以答案是 similar to peers.49. a good listener答案：关键词 self- awareness迅速定位到第二段第一句所以答案是a good listener50. They seek professional help答案：关键词 unacceptable to family or friends迅速定位到第二段第七行所以答案是They can seek professional help.51. a normal reaction答案：关键词 Counselors 和assure迅速定位到第二段倒数第三行所以答案是a normal reactionSection BDirections： There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 52 to 56 are based on the following passage.Amid all the job losses, there’s one category of worker that the economic disruption has been good for： nonhumans.From self-service checkout lines at the supermarket to industrial robots armed with saws and taught to carve up animal bodies in slaughter-houses, these ever-more-intelligent machines are now not just assisting workers but actually kicking them out of their jobs.Automation isn’t just affecting factory workers, either. Some law firms now use artificial intelligence software to scan and read mountains of legal documents, work that previously was performed by highly-paid human lawyers.“Robots continue to have a n impact on blue-collar jobs, and white-collar jobs are under attack by microprocessors,” says economics professor Edward Leamer. The recession permanently wiped out 2.5 million jobs. U.S. gross domestic product has climbed back to pre-recession levels, meaningwe’re producing as much as before, only with 6% fewer workers. To be sure, robotics are not the only job killersout there, with outsourcing (外包) stealing far more jobsthan automation.Jeff Burnstein, president of the Robotics Industry Association, argues that robots actually save U.S. jobs. His logic： companies that embrace automation might use fewer workers, but that’s still better than firing everyone and moving the work overseas.It’s not that robots are cheaper than humans, though often they are. It’s that they’re better. “In some cases the quality requirements are so exacting that even if you wanted to have a human do the job, you couldn’t,” Burnstein says.Same goes for surgeons, who’re using robotic systems to perform an ever-growing list of operations—not because the machines save money but because, thanks to the greater precision of robots, the patients recover in less time and have fewer complications, says Dr. Myriam Curet.Surgeons may survive the robot invasion, but others at the hospital might not be so lucky, as iRobot, maker of the Roomba, a robot vacuum cleaner, has been showing off Ava, which could be used as a messenger in a hospital. And once you’re home, recovering, Ava could let you talk to your doctor, so there’s no need to send someone to your house. That “mobile telepresence” could be useful at the office. If you’re away on a trip, you can still attend a meeting. Just connect via videoconferencing software, so your face appears on Ava’s screen.Is any job safe? I was h oping to say “journalist,” but researchers are already developing software that can gather facts and write a news story. Which means that a few years from now, a robot could be writing this column. And who willread it? Well, there might be a lot of us hanging around with lots of free time on our hands.注意：此部分试题请在答题卡2上作答。

2020年6月英语六级考试阅读真题及答案2020年6月英语六级考试阅读真题及答案Section ADirection： In this section, there is a short passagewith 5 questions or incomplete stamens. Read the passage carefully. Then answer the questions or complete thestatements in the fewest possible words. Please write youranswer on Answer Sheet 2.Question 47 to 51 are based on the following passageHighly proficient musicianship is hard won. Althoughit’s often assumed musical ability us inherited, there’s abundant evidence that this isn’t the case. While it seems that at birth virtually everyone has perfect pitch, thereasons that one child is better than another are motivationand practice.Highly musical children were sung to more as infants andmore encouraged to join in song games as kids than lessmusical ones, long before any musical ability could have been evident. Studies of classical musicians prove that the bestones practiced considerably more from childhood onwards than ordinary orchestral players, and this is because theirparents were at them to put in the hours from a very youngage.The same was true of children selected for entry tospecialist music schools, compared with those who wererejected. The chosen children had parents who had veryactively supervised music lessons and daily practice fromyoung ages, giving up substantial periods of leisure time totake the children to lessons and concerts.The singer Michael Jackson’s story, although unusually brutal and extreme, is illumination when considering musicalprodigy(天才). Accounts suggest that he was subjected tocruel beatings and emotional torture ,and that he washumiliated (羞辱) constantly by his father, What setsJackson’s family apart is that his father used his reign ofterror to train his children as musicians and dancers.On top of his extra ability Michael also had more drive.This may have been the result of being the closest of hisbrothers and sisters to his mother. “He seemed different to me from the other children —special,”Michael’s mother said of him. She may not have realized that treating her son asspecial may have been part of the reason be became like that.All in all, if you want to bring up a Mozart or Bach, thekey factor is how hard you are prepared to crack the whip. Thankfully, most of us will probably settle for a bit of funon the recorder and some ill-executed pieces of music-on thepiano from our children.注意：此部分试题请在答题卡2上作答。

2020年6月六级考试阅读真题及答案2020年6月六级考试阅读真题及答案Section ADirections： In this section, there is a short passage with 5 questions or incomplete statements. Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words. Please write your answers on Answer Sheet 2Questions 47 to 51 are based on the following passage.In face of global warming, much effort has been focused on reducing greenhouse gas emissions through a variety of strategies. But while much of the research and innovation has concentrated on finding less-polluting energy alternatives, it may be decades before clean technologies like wind and solar meet a significant portion of our energy needs.In the meantime, the amount of CO2 in the air is rapidly approaching the limits proposed by the Intergovernmental Panel on Climate Change (IPCC). “As long as we’re consuming fossil fuels, we’re putting out CO2,”says Klaus Lackner, a geophysicist at Columbia, University” We cannot let the CO2 in the atmosphere rise indefinitely.”That sense of urgency has increased interest in capturing and storing CO2, which the IPCC says could provide the more than 50% reduction in emissions thought needed to reduce global warming.“We see the potential for capture and storage to play an integral role in reducing emissions,” says Kim Corley, Shell’s senior advisor of CO2 and environmentalaffairs. That forward thinking strategy is gaining support. The U.S. Department of Energy recently proposed putting $1 billion into a new $2.4 billion coal-burning energy plant. The plant’s carbon-capture technologies would serve as a pilot project for other new coal-burning plants.But what do you do with the gas once you’ve captured it? One option is to put it to new uses. Dakota Gasification of North Dakota captures CO2 at a plant that converts coal into synthetic natural gas. It then ships the gas 200 miles by pipeline to Canada, where it is pumped underground in oil recovery operations. In the Netherlands, Shell delivers CO2 to farmers who pipe it into their greenhouses, increasing their yield of fruits and vegetables.However, scientists say that the scale of CO2 emissions will require vast amounts of long-term storage. Some propose storing the CO2 in coal mines or liquid storage in the ocean, Shell favors storing CO2 in deep geological structures such as saline(盐的) formations and exhausted oil and gas fields that exist throughout the world.注意：此部分试题请在答题卡2上作答。

2020年六级长篇阅读冲刺练习及解析(2)How to Make Attractive and Effective PowerPoint PresentationsA) Microsoft PowerPoint has dramatically changed the way in which academic and business presentations are made. This article outlines few tips on making more effective and attractive PowerPoint presentations.The TextB) Keep the wording clear and simple. Use active, visual language. Cut unnecessary words—a good rule of thumb is to cut paragraphs down to sentences, sentences into phrases, and phrases into key words.Limit the number of words and lines per slide. Try the Rule of Five-five words per line, five lines per slide. If too much text appears on one slide, use the AutoFit feature to split it between two slides. Click within the placeholder to display the AutoFit Options button (its symbol is two horizontal lines with arrows above and below), then click on the button and choose Split Text between Two Slides from the submenu.C) Font size for titles should be at least 36 to 40, while the text body should not be smaller than e only two font styles per slide—one for the title and the otherfor the text. Choose two fonts that visually contrast with each other. Garamond Medium Condensed and Impact are good for titles, while Garamond or Tempus Sans can be used for thetext body.D) Embed the fonts in your presentation, if you are not sure whether the fonts used in the presentation are presentin the computer that will be used for the presentation. To embed the fonts： (1) On the File menu, click Save As. (2) On the toolbar, click Tools, click Save Options, select the Embed TrueType Fonts check box, and then select Embed characters in use only.E) Use colors sparingly; two to three at most. You may use one color for all the titles and another for the text body. Be consistent from slide to slide. Choose a font color that contrasts well with the background.F) Capitalizing the first letter of each word is good for the title of slides and suggests a more formal situation than having just the first letter of the first word capitalized. In bullet point lines, capitalize the first word and no other words unless they normally appear capped. Upper and lower case lettering is more readable than all capital letters. Moreover, current styles indicate that using all capital letters means you are shouting. If you have text that is in the wrong case, select the text, and then click Shift+F3until it changes to the case style that you like. Clicking Shift+F3 toggles the text case between ALL CAPS, lower case, and Initial Capital styles.G) Use bold or italic typeface for emphasis. Avoid underlining, it clutters up the presentation.Don’t center bulleted lists or text. It is confusing to read. Left align unless you have a good reason not to. Run “spell check” on your show when finished.The BackgroundH) Keep the background consistent. Simple, light textured backgrounds work well. Complicated textures make the content hard to read. If you are planning to use many clips in your slides, select a white background. If the venue of your presentation is not adequately light-proof, select a dark-colored background and use any light color for text. Minimize the use of “bells and whistles” such as sound effects, “flying words” and multiple transitions. Don’t use red in any fonts or backgrounds. It is an emotionally overwhelming color that is difficult to see and read.The ClipsI) Animations are best used subtly; too much flash and motion can distract and annoy viewers. Do not rely too heavily on those images that were originally loaded on your computer with the rest of Office. You can easily find appropriate clips on any topic through Google Images. While searching for images, do not use long search phrases as is usually done while searching the web-use specific words.J) When importing pictures, make sure that they are smaller than two megabytes and are in a .jpg format. Larger files can slow down your show. Keep graphs, charts and diagrams simple, if possible. Use bar graphs and pie charts instead of tables of data. The audience can then immediately pick up the relationships.The PresentationK) If you want your presentation to directly open in the slide show view, save it as a slide show file using the following steps. Open the presentation you want to save as aslide show. On the File menu, click Save As. In the Save as type list, click PowerPoint Show. Your slide show file will be saved with a ppt file extension. When you double-click on this file, it will automatically start your presentation in slide show view. When you’re done, PowerPoint automatically closes and you return to the desktop. If you want to edit the slide show file, you can always open it from PowerPoint by clicking Open on the File menu.L) Look at the audience, not at the slides, whenever possible. If using a laser pointer, don’t move it too fast. For example, if circling a number on the slide, do it slowly. Never point the laser at the audience. Black out the screen (use “B” on the keyboard) after the point has been made, to put the focus on you. Press the key again to continue your presentation.M) You can use the shortcut command [Ctrl]P to access the Pen tool during a slide show. Click with your mouse and drag to use the Pen tool to draw during your slide show. To erase everything you’ve drawn, press the E key. To turn off the Pen tool, press [Esc] once.MiscellaneousN) Master Slide Set-Up：The “master slide” will allow you to make changes that are reflected on every slide in your presentation. You can change fonts, colors, backgrounds, headers, and footers at the “master slide” level. First, go to the “View” menu. Pull down the “Master” menu. Select the “slide master” menu. You may now make changes at this level that meet your presentation needs.1. The ways in which academic and business presentations are made have been changed by Microsoft PowerPoint.2. When making the PowerPoint, the wording of the text should not be complicated.3. In each slide, the font styles for the title and the text should contrast with each other.4. A more formal situation is capitalizing the first letter of the first word.5. Centering bulleted lists or text can not help to read.6. Sound effects should be used as less frequently as possible.7. When importing pictures, make sure that they are smaller than two megabytes.8. When making the presentation, you should look at the audience as possible as you can.9. Pressing the E key can help you to erase everything you've drawn.10. In order to meet your presentation needs, you can make changes at the “slide master”。