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The change in globally averaged temperature that have occurred at that the Earth’s surface over the past century are similar in size and timing to those(1)by models take into account the combined influences of human factors and solar variability.To(2)the question of attribution requires the(3)of more powerful and complex methods, beyond the use of global averages alone. New studies have focused on(4)maps or patterns of temperature change in(5)and in models. Pattern analysis is the climatologically equivalent of the more comprehensive tests in the medical analogy mentioned(6), and makes it possible to achieve more definitive(7)of observed climate changed to a particular cause or causes.The expected influence of human activities is thought to be much more complex than uniform warming over the entire surface of the Earth and over the whole(8)cycle. Patterns of change over space and time therefore provide a more powerful(9)technique. The basic idea(10)pattern-based approaches is that different(11)causes of climate change have different characteristic patterns of climate response or fingerprints. Attribution studies seek to (12)a fingerprint match between the patterns of climate change(13)by models and those actually observed.The most recent assessment of the science suggests that human activities have led to a discernible(14)on global climate and that these activities will have and increasing influence on future climate. The burning of coal, oil and natural gas, as well as various agricultural and industrial practices, are(15)the composition of the atmosphere and contributing to climate change. These human activities have led to increased atmospheric(16)of a number of greenhouse gases, including carbon dioxide, methane and so on in the lower atmosphere.Human activities, such as the burning of fossil, have also increased the(17)of small particles in the atmosphere. These particles can change the(18)of energy that is absorbed and reflected by the atmosphere. They are also believed to modify the(19)of air and clouds, changing the amount of energy that they absorb and reflect. Intensive studies of the climate effects of these particles began only recently and the overall(20)is uncertain. It is likely that the net effect of these small particles is to cool the climate and to partially offset the warming of increasing concentrations of greenhouse gases.

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Certainly no creature in the sea is odder than the common sea cucumber. All living creatures, especially human beings, have their peculiarities, but everything about the little sea cucumber seems unusual. What else can be said about a bizarre animal that, among other eccentricities, eats mud, feeds almost continuously day and night but can live without eating for long periods, and can be poisonous but is considered supremely edible by gourmets?For some fifty million years, despite all its eccentricities, the sea cucumber has subsisted on its diet of mud. It is adaptable enough to live attached to rocks by its tube feet (棘皮动物的管足),under rocks in shallow water, or on the surface of mud flats. Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present.Sea cucumbers come in a variety of colors, ranging from black to reddish-brown to sand-color and early white. One form even has vivid purple tentacles. Usually the creatures are cucumber-shaped—hence their name—and because they are typically rock inhabitants, this shape, combined with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents.Although they have voracious appetites, eating day and night, sea cucumbers have the capacity to become motionless and live at a low metabolic rate—feeding sparingly or not at all for long periods, so that the marine organisms that provide their food have a chance to multiply. If it were not for this faculty, they would devour all the food available in short time and would probably starve themselves out of existence.But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs. When attacked, it squirts all its internal organs into the water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself when it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.1. The passage mainly discusses( ).2.According to the passage, the shape of sea cucumbers is important because( ).3.The fourth paragraph of the passage mainly discuses( ).4.Of all the features of the sea cucumber, which of the following seems to fascinate the author most?5.Compared with other sea creatures the sea cucumber is very( ).

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The concept of personal choice in relation to health behaviors is an important one. An estimated 90 percent of all illnesses may be preventable if individuals would make sound personal heath choices based upon current medial knowledge. We all enjoy our freedom of choice and do not like to see it restricted when it is within the legal and moral boundaries of society. The structure of American society allows us to make almost all our own personal decisions that may concern our health. If we so desire, we can smoke, drink excessively, refuse to wear seat belts, eat whatever foods we want, and live a completely sedentary life-style without any exercise. The freedom to make such personal decisions is a fundamental aspect of our society, although the wisdom of these decisions can be questioned. Personal choices relative to health often cause a difficulty. As one example, a teenager may know the facts relative to smoking cigarettes and health but may be pressured by friends into believing it is the socially accepted thing to do.A multitude of factors, both inherited and environmental, influence the development of health-related behaviors, and it is beyond the scope of this text to discuss all these factors as they may affect any given individual. However, the decision to adopt a particular health-related behavior is usually one of personal choices. There are healthy choices and there are unhealthy choices. In discussing the morals of personal choice, Fries and Crapo drew a comparison. They suggest that to knowingly give oneself over to a behavior that has a statistical probability of shortening life is similar to attempting suicide. Thus, for those individuals who are interested in preserving both the quality and quantity of life, personal heath choices should reflect those behaviors that are associated with a statistical probability of increased vitality and longevity.1. The concept of personal choice concerning health is important because( ).2.To “live a completely sedentary life-style” (Para. 1) most probably means( ).3.Sound personal health choice is often difficult to make because( ).4.To knowingly allow oneself to pursue unhealthy habits is compared by Fries and Crapo to( ).5.According to Fries and Crapo sound health choice should be based on( ).

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Industrialization came to the United State after 1790 as North American entrepreneurs increased productivity by reorganizing work and building factories. These innovations in manufacturing boosted output and living standards to an unprecedented extent; the average per capita wealth increased by nearly 1 percent per year — 30 percent over the course of a generation. Goods that had once been luxury items became part of everyday life.The impressive gain in output stemmed primarily from the way in which workers made goods, since the 1790’s, North American entrepreneurs — even without technological improvements — had broadened the scope of the outwork system that made manufacturing more efficient by distributing materials to a succession of workers who each performed a single step of the production process. For example, during the 1820’s and 1830’s the shoe industry greatly expanded the scale and extend of the outwork system. Tens of thousands of rural women, paid according to the amount they produced, fabricated the “uppers” of shoes, which were bound to the soles by wage-earning journeymen shoemakers in dozens of Massachusetts town, whereas previously journeymen would have made the ensure shoe. This system of production made the employer a powerful “shoe boss” and eroded workers’ control over the pace and conditions of labor. However, it also dramatically increased the output of shoes while cutting their price.For tasks that were not suited to the outwork system, entrepreneurs created an even more important new organization, the modern factory, which used power-driven machines and assembly-line techniques to turn out large quantities of well-made goods. As early as 1782 the prolific Delaware inventor Oliver Evans had built a highly automated, laborsaving flour mill driven by water power. His machinery lifted the grain to the top of the mill, cleaned it as it fell into containers known as hoppers, ground the grain into flour, and then conveyed the flour back to the top of the mill to allow it to cool as it descended into barrels. Subsequently, manufacturers made use of new improved stationary stream engines to power their mills. This new technology enabled them to build factories in the nation’s largest cities, taking advantage of urban concentrations of inexpensive labor, good transportation networks, and eager customers.1. What is the passage mainly about?2.The author mentions the shoe industry in the second paragraph to provide an example of how( ).3.All of the following are mentioned as effects of changes in the shoe industry during the 1820’s and 1830’s EXCEPT( ).4.All of the following are true of the outwork system EXCEPT( )5.The passage mentions which of the following as a result of improvements in factory machinery?

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Question 1 to 5 are based on the following passage:The word science is heard so often in modern times that almost everybody has some notion of its meaning. The meaning of the term is confusing, but everyone should understand its meaning and objectives. Just to make the explanation as simple as possible, suppose science is defined as classified knowledge.Even in true sciences, distinguishing fact from fiction is not always easy. For this reason great care should be taken to distinguish between beliefs and truths. For example, hypotheses and theories are attempts to explain natural phenomena. From these positions scientists continue to experiment and observe until they are proved. The exact status of any explanation should be clearly labeled to avoid confusion.The objectives of science are primarily the discovery and the subsequent understanding of the unknown. Man cannot be satisfied with recognizing that secrets exist in nature or that questions are unanswerable; he must solve them. Toward that end, specialists in the field of biology and related fields of interest are directing much of their time and energy.Actually, two basic approaches lead to the discovery of new information. One, aimed at satisfying curiosity, is referred to as pure science. The other is aimed at using knowledge for specific purposes such as improving health, or creating new consumer products. In this case knowledge is put to economic use. Such an approach is referred to as applied science.Sometimes practical-minded people miss the point of pure science in thinking only of its immediate application for economic reward. Chemists responsible for discoveries could hardly anticipated that their findings would one day result in applications of such a practical nature as those directly related to life and death. The discovery of one bit of information opens the door to the discovery of another. However, one should remember that the construction of the microscope had to precede the discovery of the cell. Many scientists dedicating their lives to purer science are not apologetic about ignoring the practical side of their discoveries; they know from experience that most knowledge is eventually applied.1. To define science, we can simply name it as( ).2.A scientist interested in general knowledge about oxygen would probably call his approach( ).3.Which of the following sentences about pure science is true?4.Which of the following is implied in the passage?5.Which of the following is the best title for this passage?

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The statistics I’ve cited and the living examples are all too familiar to you. But what may not be so familiar will be the increasing number of women who are looking actively for advancement of for a new job in your offices. This woman may be equipped with professional skills and perhaps valuable experience. She will not be content to be Executive Assistant to Mr. Seldom Seen of the Assistant Vice President’s Girl Friday, who is the only one who comes in on Saturday.She is the symbol of what I call the Second Wave of Feminism. She is the modern woman who is determined to be.Her forerunner was the radical feminist who interpreted her trapped position as a female as oppression by the master class of men. Men, she believed, had created a domestic, servile role for women in order that men could have the career and the opportunity to participate in making the great decisions of society. Thus the radical feminist held that women through history had been oppressed and dehumanized, mainly because man chose to exploit his wife and the mother of his children. Sometimes it was deliberate exploitation and sometimes it was the innocence of never looking beneath the pretensions of life.The radical feminists found strength in banding together. Coming to recognize each other for the first time, they could explore their own identities, realize their own power, and view the male and his system as the common enemy. The first phases of feminism in the last five years often took on this militant, class-warfare tone. Betty Friedan, Gloria Steinem, Germaine Greer, and many others hammered home their ideas with a persistence that aroused and intrigued many of the brightest and most able women in the country. Consciousness-raising groups allowed women to explore both their identities and their dreams—and the two were often found in direct conflict.What is the stereotyped role of American women? Marriage. A son. Two daughters. Breakfast. Ironing. Lunch. Bowling, maybe a garden club of for the very daring, non-credit courses in ceramics. Perhaps an occasional cocktail party. Dinner. Football or baseball on TV. Each day the same. Never any growth in expectations — unless it is growth because the husband has succeeded. The inevitable question: “Is that all there is to life?” The rapid growth of many feminist organizations attests to the fact that these radical feminists had touched some vital nerves. The magazine “Ms.” was born in the year of the death of the magazine “Life.” But too often the consciousness-raising sessions became ends in themselves. Too often sexism reversed itself and man-hating was encouraged. Many had been with the male chauvinist.It is not difficult, therefore, to detect a trend toward moderation. Consciousness-raising increasingly is regarded as a means to independence and fulfillment, rather than a ceremony of fulfillment itself. Genuine independence can be realized through competence, through finding a career, through the use of education. Remember that for many decades the education of women was not supposed to be useful.1. What was the main idea of this passage?2.What was the author’s attitude toward the radical?3.What does the word “militant” mean?4.What was the radical feminist’s view point about the male?

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In some countries where racial prejudice is acute, violence has so come to be taken for granted as a means of solving differences, that it is not even questioned. There are countries where the white man imposes his rule by brute force; there are countries where the black man protests by setting fire to cities and by looting and pillaging. Important people on both sides, who would in other respects appear to be reasonable men, get up and calmly argue in favor of violence — as if it were a legitimate solution, like any other. What is really frightening, what really fills you with despair, is the realization that when it comes to the crunch, we have made no actual progress at all. We may wear collars and ties instead of war-paint, but our instincts remain basically unchanged. The whole of the recorded history of the human race, that tedious documentation of violence, has taught us absolutely nothing. We have still not learnt that violence never solves a problem but makes it more acute. The sheer horror, the bloodshed, the suffering mean nothing. No solution ever comes to light the morning after when we dismally contemplate the smoking ruins and wonder what hit us.The truly reasonable men who know where the solutions lie are finding it harder and harder to get a hearing. They are despised, mistrusted and even persecuted by their own kind because they advocate such apparently outrageous things as law enforcement. If half the energy that goes into violent acts were put to good use, if our efforts were directed at cleaning up the slums and ghettos, at improving living standards and providing education and employment for all, we would have gone a long way to arriving at a solution. Our strength is sapped by having to mop up the mess that violence leaves in its wake. In a well-directed effort, it would not be impossible to fulfill the ideals of a stable social programme. The benefits that can be derived from constructive solutions are everywhere apparent in the world around us. Genuine and lasting solutions are always possible, providing we work within the framework of the law.Before we can even begin to contemplate peaceful co-existence between the races, we must appreciate each other’s problems. And to do this, we must learn about them: it is a simple exercise in communication, in exchanging information. “Talk, talk, talk,” the advocates of violence say, “all you ever do is talk, and we are none the wiser.” It’s rather like the story of the famous barrister who painstakingly explained his case to the judge. After listening to a lengthy argument the judge complained that after all this talk, he was none the wiser. “Possible, my lord,” the barrister replied, “none the wiser, but surely far better informed.” Knowledge is the necessary prerequisite to wisdom: the knowledge that violence creates the evils it pretends to solve.1. What is the best title for this passage?2.Recorded history has taught us( )3.It can be inferred that truly reasonable men( )4.“He was none the wiser” means( )5.According the author the best way to solve race prejudice is( )

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Recently, Congressional Democrats introduced legislation to make it easier for older workers to win age discrimination lawsuits. Age discrimination remains a significant workplace issue.In recent ten years, 15.79 percent of cases brought to the Equal Employment Opportunity Commission, were described as successful claims. While this number is small given the number of workers covered by the Age Discrimination in Employment Act, many, if not most, instances of age discrimination are never sued, and cases hiring discrimination often go undetected.Most of those who do sue are white, male middle-managers who are likely to have lost a sizeable salary and pension. For the most part, other groups do not sue because the costs of a lawsuit outweigh the potential benefits. Age discrimination remains a significant workplace issue.There is strong experimental evidence for age discrimination in hiring, at least for entry-level jobs. Recently, I performed a labor market experiment in Boston in which I sent out thousands of resumes for fictitious (虚构的) entry-level female candidates and measured response rate based on date of high school graduation. Among this group, younger applicants, whose date of high school graduation indicated that they were less than 50 years old, were 40 percent more likely to be called back for an interview than were older applicants.It is difficult to tell whether employment problems are worse for older workers than for other workers when times are bad. The number of discrimination lawsuits increases during times of high unemployment, but this finding by itself does not indicate an increased level of age discrimination. In times of higher unemployment, the opportunity cost to a lawsuit is lower than it is when times are good.From the employer’s perspective, mass layoffs may seem like a good chance to remove a higher proportion of generally more expensive older workers without the worry of being sued. On the other hand, employers may be less likely to remove protected older workers because they still fear lawsuits. One thing we do know is that once an older worker loses a job, he or she is much less likely to find a new job than a younger worker is.Unfortunately, the effect of legislation prohibiting age discrimination is not easy to see and may actually be part of the reason it is so difficult for older workers to find employment. If it is more difficult to fire an older worker than a younger worker, a firm will be less likely to want to hire older workers. Indeed, my research finds that in states where workers have longer time to bring a lawsuit claim, older men work fewer weeks per year, are less likely to be hired, and less likely to be fired than men in states where they do not have as much.Not many people would suggest that we go back to a world prior to the Age Discrimination in Employment Act, in which advertisements specify the specific ages of people they are willing to hire. However, legislation prohibiting discrimination is no panacea (万灵药). The recent proposed congressional legislation could have both positive and negative effects on potential older workers.1. A lot of cases of age discrimination are not found because( )2.The labor market experiment in Boston shows that( )3.What may lead to the increase of discrimination lawsuits during times of high unemployment?4.From the last paragraph, we learn that( )5.The author is( )when he analyzes the age discrimination issue.

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Which is safer-staying at home, traveling to work on public transport, or working in the office? Surprisingly, each of these carries the same risk, which is very low. However, what about flying compared to working in the chemical industry? Unfortunately, the former is 65 times riskier than the latter! In fact, the accident rate of workers in the chemical industry is less than that of almost any of human activity, and almost as safe as staying at home.The trouble with the chemical industry is that when things go wrong they often cause death to those living nearby. It is this which makes chemical accidents so newsworthy. Fortunately, they are extremely rare. The most famous ones happened at Texas City (1947), Flixborough (1974), Seveso (1976), Pemex (1984) and Bhopal (1984).Some of these are always in the minds of the people even though the loss of life was small. No one died at Seveso, and only 28 workers at Flixborough. The worst accident of all was Bhopal, where up to 3,000 were killed. The Texas City explosion of fertilizer killed 552. The Pemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, just a month before the unfortunate event at Bhopal.Some experts have discussed these accidents and used each accident to illustrate a particular danger. Thus the Texas City explosion was caused by tons of ammonium nitrate (硝酸铵), which is safe unless stored in great quantity. The Flixborough fireball was the fault of management, which took risks to keep production going during essential repairs. The Seveso accident shows what happens if the local authorities lack knowledge of the danger on their doorstep. When the poisonous gas drifted over the town, local leaders were incapable of taking effective action. The Pemex fire was made worse by an overloaded site in an overcrowded suburb. The fire set off a chain reaction on exploding storage tanks. Yet, by a miracle, the two largest tanks did not explode. Had these caught fire, then 3,000 strong rescue team and fire fighters would all have died.1. Which of the following statements is true?2.Chemical accidents are usually important enough to be reported as news because( ).3.According to passage, the chemical accident that caused by the fault of management happened at( ).4.From the passage we know that ammonium nitrate is a kind of( ).5.From the discussion among some experts we may conclude that( ).

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The Benefits of New Urbanism(1) New urbanism is the most important planning movement in this century, and is about creating a better future for us all. It is an international movement to reform the design of the built environment, and is about raising our quality of life and standard of living by creating better places to live in. New urbanism is the revival of our lost art of place-making, and is essentially a re-ordering of the built environment into the form of complete cities, towns, villages, and neighborhoods—the way communities have been built for centuries around the world. New urbanism involves fixing and infilling cities, as well as the creation of compact new towns and villages. The benefits of new urbanism are as follows:Benefits to Residents(2) Higher quality of life; better places in which to live, work, and play; more stable property values; less traffic congestion and less driving; healthier lifestyle with more walking and less stress; close proximity to main street retail and services; close proximity to bike trail, parks, and nature; pedestrian friendly communities offer more opportunities to get to know others in the neighborhood and town, resulting in meaningful relationships with more people, and friendlier town; more freedom and independence to children, the elderly, and the poor in being able to get to jobs recreation, and services without the need for a car or someone to drive them; great savings to residents and school boards in reduced busing costs from children being able to walk or bicycle to neighborhood schools; more diversity and smaller, unique shops and services with local owners who are involved in community; big savings by driving less, and owning less cars; less ugly, congested sprawl to deal with daily; better sense of place and community identity with more unique architecture; more open space to enjoy that will remain open space; more efficient use of tax money with less spent on utilities and roads used for the sprawl.Benefits to Businesses(3) Increased sales due to more foot traffic and people spending less on cars and gas; more profits due to spending less on advertising and large signs; better lifestyle by living near work units saves the stressful and costly commute; economies of scale in marketing due to close proximity and cooperation with other local business incubation; lower rents due to smaller spaces and smaller parking lots; healthier lifestyle due to more walking and being near healthier restaurants; more community involvement from being part of community and knowing residents.(4) Benefits to Developers. More income potential from higher density mixed-use projects due to more leasable square footage, more sales per square foot, and higher property values and selling prices; faster approvals in communities that have adopted smart growth principles resulting in cost/time sayings: cost savings in parking facilities in mixed-use properties due to sharing of spaces throughout the day and night, resulting in less duplication in providing parking; less need for parking facilities due to mix of residences and commercial uses within walking distance of each other; less impact on roads/traffic, which can result in lower impact fees; lower cost of utilities due to compact nature of new urbanist design; faster sellout due to greater acceptance by consumers from a wider product range resulting in wider market share.Benefits to Municipalities(5) Stable, appreciating tax base; less spent per capita on infrastructure and utilities than typical suburban development due to compact high-density nature of projects; increased tax base due to more buildings packed into a tighter area; less traffic congestion due to walkability of design; less crime and less money spent on police due to the presence of more people day and night; better overall community image and sense of place; less incentive to sprawl when urban core area is desirable; easy to install transit where it’s not, and improve it where it is; greater civic involvement of population leading to better governance.(6) The most effective way to implement new urbanism it to plan for it, and write it into zoning and development codes. This directs all future development into this form.(7) Increasingly, regional planning techniques are being used to control and shape growth into compact, high-density, mixed-use neighborhoods, villages, towns, and cities. Planning new train systems (instead of more roads) delivers the best results when designed in harmony with regional land planning known as Transit Oriented Development (TOD). At the same time, the revitalization of urban areas directs and encourages infill development back into city centers.(8) Planning for compact growth, rather than letting it sprawl out, has the potential to greatly increase the quality of the environment. It also prevents congestion problems and the environmental degradation normally associated with growth.(9) There are some obstacles in implementation of new urbanism. The most important obstacle to overcome is the restrictive and incorrect zoning codes currently in force in most municipalities. Current codes do not allow new urbanism to be built, but do allow sprawl.(10) An equally important obstacle is the continuous road building and expansion taking place in every community across America. This encourages more driving and more sprawl which has a domino effect on increasing traffic congestion across the region. Halting road projects and building new train system can help reverse this problematic trend.1. A pedestrian street is a street( ).2. According to the passage new urbanism emphasizes( ).3.Which of the following can BEST summarize the benefits of new urbanism to residents?4.Which of the following statements is TRUE?5.To preserve the environment, new urbanism lays stress on( ).

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