六级讲义2 (长篇阅读部分)

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.。

大学六级真题长篇阅读及参考详解大学英语六级考试是中国大陆高校学生的一项重要考试。

其中长篇阅读作为考试的难点之一，需要考生对文章内容进行准确理解和深入分析。

本文将通过解析真题，为考生提供参考和指导。

1. 题目解析大学六级真题长篇阅读部分通常由一篇长文和后续的多个问题组成。

考生需要仔细阅读文章，并根据问题选择正确的答案。

在解析文章之前，我们先来看看一个典型的真题：One of the great inventions of the Industrial Revolution was the idea of separating the place of work and the place of living. Before the 18th century, most people lived where they worked. They may have had a small farm or been a tradesman, and they fit their lives around their work. The advent of factories, though, forced people to leave their homes and work in a separate place. Shanghai industry(行业) has for over a century been built on the same principle-—the separation of work and living.But now, government officials in China's financial(金融的) hub(中心) have decided that the separation of work and living no longer holds. Theyare appropriating(拨用) planned factories and turning them into ＂creative spaces“， places where people can go to live and work. The reason, they say, is that living and working apart has created a culture of consumption(消费) rather than of creation.The so-called“creative spaces“ now taking shape represent a 180°shift(转变) in thinking. For generations, people were taught that work was work. It had its place. When they weren't doing it, they would retreat to their personal lives, very often being encouraged to do so by news organizations, which were supported by consumer advertising(广告). People would read newspapers as news-readership, too, was supported by advertising. Now, however, at work people are creating things and thus building cities.The concept is old, long lost in many parts of the world. But Shanghai is reclaiming(回收) it and presents a unique opportunity for the city to become a global leader in culture and design. Schools, theaters, galleries, museums and other forms of culture and art, along with clean manufacturing, are now springing up on the banks of the Huangpu River, and the government makes it easy for people to live and work in these spaces by subsidizing a large part of the rent.从这篇文章中，我们可以看出作者主要讲述的是中国的一个城市——上海，在近年来提倡“创意空间”发展模式，以期改变人们的工作和生活方式，从而达到创造性的发展。

大学英语六级改革适用（长篇阅读）模拟试卷2(题后含答案及解析) 题型有： 4. Reading ComprehensionPart III Reading ComprehensionSection BThe Happiness Effect[A]The next time you get the flu, there will almost certainly be someone you can blame for your pain. There’s the inconsiderate co-worker who decided to drag himself to the office and spent the day sniffling, sneezing and shivering in the cubicle next to yours. Or your child’s best friend, the one who showed up for a playdate with a runny nose and a short supply of tissues. Then there’s the guy at the gym who spent more time sneezing than sweating on the treadmill before you used it.[B]You’re right to pass the blame. Pathogens(致病菌)like the influenza virus pass like a holiday fruitcake from person to person, but you probably don’t think much past the one who gave it directly to you. An infectious-disease expert, on the other hand, would not be satisfied to stop there. What about the person who passed the virus on to your colleague, the one before him and others earlier still? Contagious(传染性的)diseases operate like a giant infectious network, spreading like the latest YouTube clip among friends of friends online. We’re social animals; we share.[C]So public-health experts are beginning to wonder whether certain health-related behaviors are just as contagious as microbes. If you’re struggling with your weight, did you in effect catch a case of fat by learning poor eating and exercise habits from a friend or family member who was similarly infected by someone else? If you smoke, do you light up because you were behaviorally contaminated by smokers who convinced you of the coolness of the habit? Even more important, if such unhealthy behaviors are contagious, are healthy ones —like quitting smoking or exercising —equally so? And what if not only behaviors but also moods and mental states work the same way? Can you catch a case of happy?[D]Increasingly, the answer seems to be yes. That’s the intriguing conclusion from a body of work by Harvard social scientist Dr. Nicholas Christakis and his political-science colleague James Fowler at the University of California at San Diego. The pair created a sensation with their announcement earlier this month of a 20-year study showing that emotions can pass among a network of people up to three degrees of separation away, so your joy may, to a larger extent than you realize, be determined by how cheerful your friends’ friends’ friends are, even if some of the people in this chain are total strangers to you.[E]If that’s so, it creates a whole new paradigm for the way people get sick and, more important, how to get them healthy. It may mean that an individual’s well-being is the product not just of his behaviors and emotions but more of the way they feed into a larger social network. Think of it as health Facebook-style. “We have a collective identity as a population that transcends individual identity,”says Christakis. “This superorganism has an anatomy(解剖学),physiology, structure and function that we are trying to understand.”[F]In their most recent paper, published in the British Medical Journal, Christakis and Fowler explored the emotional state of nearly 5,000 people and the more than 50,000 social ties they shared. At three points during the long study, all the participants answered a standard questionnaire to determine their happiness level, so that the scientists could track changes in emotional state.[G]That led to their intriguing finding of just how contagious happiness can be: if a subject’s friend was happy, that subject was 15% more likely to be happy too; if that friend’s friend was happy, the original subject was 10% more likely to be so. Even if the subject’s friend’s friend’s friend —entirely unknown to the subject —was happy, the subject still got a 5.6% boost. The happiness chain also worked in the other direction, radiating from the subject out to his friends.[H]The happiness dividend is more powerful if two people not only know each other but also are equally fond of each other. Happiness is more infectious in mutual relationships(in which both people name the other as a friend)than in unreciprocated ones(in which only one is named).[I]And it’s not just in sterile(枯燥乏味的)study settings that the contagion of happiness is spreading. Christakis and Fowler noticed that people who are smiling on their Facebook pages tend to cluster together, forming an online social circle like a delirious flock of cyberbirds. And while some of this joy can certainly be traced to the copycat effect —if your friends post smiling pictures, you might feel like a grouch(不高兴的人)if you don’t too —Christakis and Fowler are analyzing the clusters to see if something more infectious might be at work.[J]Skeptics raise other concerns, ones that go beyond the copycat effect. Couldn’t happy people simply be exposed to similar lifestyles or social factors that explain their shared joy, such as favorable weather, low unemployment rates or a winning baseball team? If that were the case, argue the authors, then happiness would spread more uniformly among all the relationships; instead, it varied depending on whether the friendship was mutual or merely one-sided. As the investigators teased out these factors, they found that environment didn’t have nearly the power that relationships did.[K]The infectiousness of happiness is only the latest in a series of similar phenomena Christakis and Fowler have stud-ied. In 2007 they published a paper showing that obesity travels across webs in a similar way, with individuals having a 57% greater risk of being overweight if they have an obese friend. The same holds true for quitting smoking, with success 30% more common among friends of quitters than among friends of smokers.[L]In all these cases, there’s a predictable topography(地形)to how people influence one another, one that can be reduced to a sort of social map. People who are central to their networks —who in effect are the hub through which most of the other relationships or information flows —may have the most influence on others and in turn are the most influenced by them. But just because you start off at the center of your web does not guarantee that you’ll stay there. In the 1970s, smokers were more likely to occupy that focal position in their network of friends and family. Look at a similar social map today, and you’ll see that the smokers have drifted to the periphery(外围).[M]The better this kind of mapping becomes, the more value it has.[N]Officials at the Centers for Disease Control and Prevention(CDC)are exploiting the connectedness of youngsters in online socialnetworks, for example, to improve flu-vaccination rates, not just among those under age 18 but among all the people to whom these children have ties. “Because of their social and peer networks, children have a higher likelihood of sharing information with the most people,”says Jay Bernhardt of the CDC. By targeting youngsters on these sites with information about the importance of annual flu shots, health officials hope to trigger a literal and figurative viral wave of vaccination among the kids’ peers, their peers’ peers, and even those peers’ parents and grandparents.[O]”We are always looking for exciting new areas of research that will help people live healthier,” says Richard Suzman, director of the division of behavioral and social research at the National Institute on Aging. “Without a doubt, I see this as a very promising area.”And with the health community a web like any other, expect that idea to spread further and further.1．Environmental factors couldn’t explain people’s shared joy, because the spreading of happiness varied among different relationships.正确答案：J解析：根据题干中的explain people’s shared joy,varied将本题出处定位于[J]段第2、3句。

阅读理解Passagetwo的六级深度讲义关于阅读理解Passage two的六级深度讲义Passage TwoThe tourist trade is booming. With all this coming and going, youd expect greater understanding to develop between the nations of the world. Not a bit of it! Superb systems of communication by air, sea and land make it possible for us to visit each others countries at a moderate cost. What was once the grand tour, reserved for only the very rich, is now within everybodys grasp? The package tour and chartered flights are not to be sneered at. Modern travelers enjoy a level of comfort which the lords and ladies on grand tours in the old days couldnt have dreamed of. But whats the sense of this mass exchange of populations if the nations of the world remain basically ignorant of each other?Many tourist organizations are directly responsible for this state of affairs. They deliberately set out to protect their clients from too much contact with the local population. The modern tourist leads a cosseted, sheltered life. He lives at international hotels, where he eats his international food and sips his international drink while he gazes at the natives from a distance. Conducted tours to places of interest are carefully censored. The tourist is allowed to see only what the organizers want him to see and no more. A strict schedule makes it impossible for the tourist to wander off on his own; and anyway, language is always a barrier, so he is only too happy to be protected in this way. At its very worst, this leads to a new and hideous kind of colonization. The summer quarters of the inhabitants of the cite universitaire: are temporarily reestablished on the island of Corfu. Blackpool isrecreated at Torremolinos where the traveler goes not to eat paella, but fish and chips.。

Part II Reading Comprehension (35 minutes)Directions: There are 4 passages in this Part. 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 the Answer Sheet with a single line through the centre.Passage OneQuestions 21 to 25 are based on the following passage.（这是⼀篇报道性的科普⽂章，⽂章的主题是⽓候变化对⼈类⽣存的影响。

阅读难度较⼤。

）When global warming finally came, it stuck with a vengeance (异乎寻常地). In some regions, temperatures rose several degrees in less than a century. Sea levels shot up nearly 400 feet, flooding coastal settlements and forcing people to migrate inland. Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia. After driving many of the animals around them to near extinction, people were forced to abandon their old way of life for a radically new survival strategy that resulted in widespread starvation and disease. The adaptation was farming: the global-warming crisis that gave rise to it happened more than l0,000 years ago.As environmentalists convene in rio de Janeiro this week to ponder the global climate of the future, earth scientists are in the midst of a revolution in understanding how climate has changed in the past --and how those changes have transformed human existence. Researchers have begun to piece together an illuminating picture of the powerful geo1ogical and astronomical forces that have combined to change the planet's environment from hot to cold, wet to dry and back again over a time Period stretching back hundreds of millions of years.Most important, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species. New research now suggests that climate shifts have played a key role in nearly every significant turning point in human evolution: from the dawn of Primates (灵长类动物) some 65 million years ago to human ancestors rising up to walk on two legs, from the huge expansion of the human brain to the rise of agriculture. Indeed, the human history has not been merely touched by global climate change, some scientists argue, it has in some instances been driven by it.The new research has profound implications for the environmental summit in Rio. Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth. The benign (宜⼈的) global environment that has existed over the past l0,000years - during which agriculture, writing, cities and most other features of civilization appeared --is a mere bright spot in a much large pattern of widely varying climate over the ages. In fact the pattern of climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future -- even without the influence of human activity2l. Farming emerged as a survival strategy because man had been obliged____________ .A) to give up his former way of lifeB) to leave the coastal areas.C) to follow the ever-shifting vegetationD) to abandon his original settlement.答案为 A)?事实细节题。

关于阅读理解Passagetwo的六级深度讲义第1篇：关于阅读理解Passage two的六级深度讲义passagetwothetouristtradeisbooming.withallthisingandgoing,youdexpe ctgreaterunderstandingtodevelopbetweenthenationsoftheworld .notabitofit!superbsystemsofmunicationbyair,seaandlandmakeit possibleforustovisiteachotherscountriesatamoderatecost.whatw asoncethegrandtour,reservedforonlytheveryrich,isnowwithinever ybodysgrasp?thepackagetourandcharteredflightsarenottobesne eredat.moderntravelersenjoyaleveloffortwhichthelordsandladies ongrandtoursintheolddayscouldnthavedreamedof.butwhatsthes enseofthismassexchangeofpopulationsifthenationsoftheworldre mainbasic未完，继续阅读 >第2篇：六级深度讲义—阅读理解passagesixthesedayswehearalotofnonsenseaboutthegreatclasslesssoci ety.theideathatthetwentiethcenturyistheageofthemonmanhasbe eoneofthegreatclichsofourtime.thesameoldargumentsareputfor wardinevidence.herearesomeofthem:monarchyasasystemofgove rnmenthasbeenpletelydiscredited.themonarchiesthatsurvivehav ebeendeprivedofallpoliticalpower.inheritedwealthhasbeensavag elyreducedbytaxationand,intime,thegreatfortuneswilldisappeara ltogether.inanumberofcountriesthevictoryhasbeenplete.thepeop lerule;thegreatmillenniumhasbeeapoliticalreality.buthasit?closee xaminati未完，继续阅读 >第3篇：关于四六级阅读理解概述一、学好基本语言知识扎实的语言知识是各项语言能力的基础，对提高阅读能力来说更是如此。

大学英语CET6长篇阅读训练题及答案高校英语CET6长篇阅读训练题及答案try not to become a man of success but rather try to become a man of value，以下是我为大家搜寻整理的高校英语CET6长篇阅读训练题及答案，期望能给大家带来帮忙!更多精彩内容请准时关注我们应届毕业生考试网!Preparing for Computer DisastersA: Summary: When home office computers go down, many small businesses grind to a halt. Fortunately, taking steps to recover from disasters and minimize their effects is quite straightforward.B: Fires, power surges, and floods, theyre all facts of life. We read about them in the morning paper and see them on the evening news. We sympathize with the victims and commiserate over their bad luck. We also shake our heads at the digital consequencesmelted computers, system failures, destroyed data. Yet, somehow, many of us continue to live by that old mantra of denial: It wont happen to me. Well, the truth is, at some point youll probably have to deal with at least one disaster. Thats just how it goes, and in most aspects of our lives we do something about it. We buy insurance. We stow away provisions. We even make disaster plans and run drills. But for some reason, computer disaster recovery is a blind spot for many of us. It shouldnt be. Home computers contain some of our most important information, both business and personal, and making certain ourdata survives a disaster should be a priority. Moreover, even the smallest disaster can be a serious disruption. Personal computers have become an integral part of the smooth-running household. We use them to communicate, shop, and do homework, and theyre even more vital to home office users. When home office computers go down, many small businesses grind to a halt. Fortunately, taking steps to recover from disasters and minimize their effects is quite straightforward. With a good offsite storage plan and the right tools, you can bounce back quickly and easily from minor computer disasters. And, should a major calamity strike, you can rest assured your data is safe.Offsite Storage: Major DisastersC: House fires and floods are among the most devastating causes of personal computer destruction. Thats why a solid offsite backup and recovery plan is essential. Although many home users faithfully back up their hard drives, many would still lose all their data should their house flood our burn. Thats because they keep their backups in relatively close to their computers. Their backup disks might not be in the same room as their computerstucked away in a closet or even the garagebut theyre not nearly far enough away should a serious disaster strike. So, its important to back up your system to a removable medium and to store it elsewhere.D: There are many ways to approach offsite storage. It starts with choice of backup tools and storage medium. Disaster situations are stressful, and your recovery tools shouldnt add to that stress. They must be dependable and intuitive, making it easy to schedule regular backups and to retrieve files ina pinch. They must also be compatible with your choice of backup medium. Depending on your tools, you can back up to a variety of durable disk typesfrom CDs to Jaz drives to remote network servers. Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.E: Once you select your tools and a suitable medium, you need to find a remote place to store your backups. The options are endless. However, no matter where you choose, be sure the site is secure, easily accessible, and a good distance away from your home. You may also want to consider using an Internet-based backup service. More and more service providers are offering storage space on their servers, and uploading files to a remote location has become an attractive alternative to conventional offsite storage. Of course, before using one of these services, make certain you completely trust the service provider and its security methods. Whatever you do, schedule backups regularly and store them far away from your home.Come What May: Handling the Garden Variety Computer CrisisF: Not all home computer damage results from physical disaster. Many less menacing problems can also hobble your PC or destroy your information. Systems crash, kids rearrange data, adults inadvertently delete files. Although these events might not seem calamitous, they can have serious implications. So, once again, its important to be prepared. As with physical disasters, regular backups are essential. However, some of these smaller issues require a response thats more nuanced thanwholesale backup and restoration. To deal with less-than-total disaster, your tool set must be both powerful and agile. For example, when a small number of files are compromised, you may want to retrieve those files alone. Meanwhile, if just your settings are affected, youll want a simple way to roll back to your preferred setup. Yet, should your operating system fail, youll need a way to boot your computer and perform large-scale recovery. Computer crises come in all shapes and sizes, and your backup and recovery tools must be flexible enough to meet each challenge.The Right Tools for the Right Job: Gearing up for DisasterG: When disaster strikes, the quality of your backup tools can make the difference between utter frustration and peace of mind. Symantec understands this and offers a range of top quality backup and recovery solutions. Norton GoBack is the perfect tool for random system crashes, failed installations, and inadvertent deletions. With this powerful and convenient solution, its simple to retrieve overwritten files or to bring your system back to its pre-crash state. Norton Ghost is a time-tested home office solution. Equipped to handlefull-scale backups, its also handy for cloning hard drives and facilitating system upgrades. A favorite choice for IT professionals, its the ideal tool for the burgeoning home office. You can buy Norton Ghost and Norton GoBack separately, or get them both when you purchase Norton System Works.H: Lifes disasters, large and small, often catch us by surprise. However, with a little planning and the right tools, you can reduce those disasters to bumps in the road. So, dontwait another day. Buy a good set of disaster recovery tools, set up an automatic backup schedule, and perform a dry run every now and again. Then, rest easy.1. You should take steps to recover from computer disasters so as to minimize their effects.2. For some reason, computer disaster recovery is always ignored by many of us.3. You can bounce back quickly and easily minor computer disasters with the help of a good offsite storage plan and the right tools.4. The most devastating causes of personal computer destruction includes house fires and floods.5. Its necessary for us to back up our systems to some transferable medium and to put it somewhere else.6. You should find a distant place to store your backups after selecting your tools and a suitable medium.7. Not only physical disaster can damage your computer.8. The backup and recovery tools must be flexible enough to deal with various computer crises.9. The quality of your backup tools determines whether you are frustrated or have a peaceful mind when disaster strikes.10. You should prepare for your computer disasters now and again.答案解析1. A依据题干中的信息词recover from computer disasters定位到本文的第一段。