填空题 Science develops through objective analysis, instead of through personal belief. Knowledge gained in science accumulates as time goes by, building on work performed earlier. Some of this knowledge-such as our understanding of numbers-stretches back' to the time of ancient civilizations, when scientific thought first began. Other scientific knowledge such as our understanding of genes that cause cancer or of quarks (the smallest known building block of matter) -dates back less than 50 years. However, in all fields of science, old or new, researchers use the same systematic approach, known as the scientific method, to add to what is known. 41__________. For example, in 1676, the English physicist Robert Hooke discovered that elastic objects, such as metal springs, stretch in proportion to the force that acts on them. Despite all the advances that have been made in physics since 1676, this simple law Still holds true. 42__________. Sometimes scientific predictions go much further by describing objects or events that are not yet known. An outstanding instance occurred in 1869, when the Russian chemist Dmitry Mendeleyev drew up a periodic table of the elements arranged to illustrate patterns of recurring chemical and physical properties. 43__________. At the time, most geologists discounted Wegener's ideas, because the Earth's crust seemed to be fixed. But following the discovery of plate tectonics in the 1960s, in which scientists found that the Earth's crust is actually made of moving plates, continental drift became an important part of geology. Through advances like these, scientific knowledge is constantly added to and refined. As a result, science gives us an ever more detailed insight into the way the world around us works. 44__________. However, with the dawn of the Industrial Revolution in the 18th century, this rapidly changed. Today, science has a profound effect on the way we live, largely through technology--the use. of scientific knowledge for practical 45__________. The refrigerator, for example, owes its existence to a discovery that liquids take in energy when they evaporate, a phenomenon known as latent heat. A. Scientists utilize existing knowledge in new scientific investigations to predict how things will behave. For example, a scientist who knows the exact dimensions of a lens can predict how the lens will focus a beam of light. In the same way, by knowing the exact makeup and properties of two chemicals, a researcher can predict what will happen when they combine. B. For a large part of recorded history, science had little bearing on people's everyday lives. Scientific knowledge was gathered for it sown sake, and it had few practical applications. C. During scientific investigations, scientists put together and compare new discoveries and existing knowledge. In most cases, new discoveries extend what is currently accepted, providing further evidence that existing ideas are correct. D. Tile principle of latent heat was first exploited in a practical way in 1876, and the refrigerator has played a major role in maintaining public health ever since. Tile first automobile, dating from the 1880s, made use of many advances in physics and engineering, including reliable ways of generating high-voltage sparks, while the first computers emerged in the 1940s from simultaneous advances in electronics and mathematics. E. Some forms of technology have become so well established that it is easy to forget the great scientific achievements that they represent. F. In science, important advances can also be made when current ideas are shown to be wrong. A classic case of this occurred early in the 20th century, when the German geologist Alfred Wegener suggested that the continents were at one time connected, a theory known as continental drift. G. Other fields of science also play an important role in the things we use or consume every day. Research in food technology has created new ways of preserving and flavoring what we eat.

填空题 There are still significant gaps between women and men in terms of their involvement in family life, the tasks they perform and the responsibilities they take. Yet, at least in developed Western countries, both women and men express a desire for greater equality in family life. It is evident that in terms of attitudes and beliefs, the problem cannot simply be thought of in terms of women wanting men to share more equally and men being reluctant to do so. The challenge now is to develop policies and practices based on a presumption of shared responsibility between men and women, and a presumption that there are potential benefits for men and women, as well as for families and the community, if there is greater gender equality in the responsibilities and pleasures of family life. These are becoming key concerns of researchers, policy makers, community workers and, more importantly, family members themselves.41. ______Despite the significant increase in the number of women with dependent children who are in the paid workforce, Australian research studies over the last 15 years are consistent in showing that divisions of labour for family work are very rigid indeed (Watson 1991). In terms of time, women perform approximately 90 percent of child care tasks and 70 percent of all family work, and only 14 percent of fathers are highly participant in terms of time spent on family work (Russell 1983). Demo and Acock (1993), in a recent US study, also found that women continue to perform a Constant and major proportion of household labour (68 percent to 95 percent) across all family types (first marriage, divorced, step-family or never married), regardless of whether they are employed or non-employed in paid work.42. ______ Divisions of labour for family work are particularly problematic in families in which both parents are employed outside the home (dual-worker families). Employed mothers adjust their jobs and personal lives to accommodate family commitments more than employed fathers do. Mothers are less likely to work overtime and are more likely to take time off work to attend to children's needs (VandenHeuvel 1993). Mothers spend less time on personal leisure activities than their partners, a factor that often leads to resentment (Demo and Acock 1993).43. ______ The parental role is central to the stress-related anxiety reported by employed mothers, and a major contributor to such stress is their taking a greater role in child care (VandenHenvel 1993). Edgar and Giezer (1992) found that close to 90 percent of both husbands and wives agreed that the man should share equally in child care, yet 55 percent of husbands and wives claimed that the men actually did this. (These claims are despite the findings mentioned earlier that point to a much lower participation rate by fathers.) A mother's wanting her partner to do more housework and child care is a better predictor of poor family adjustment than is actual time spent by fathers in these tasks (Demo and Acock 1993). It is this desire, together with its lack of fulfillment in most families, that bring about stress in the female parent. 44. ______ Family therapists and social work researchers are increasingly defining family problems in terms of a lack of involvement and support from fathers and are concerned with difficulties involved in having fathers take responsibility for the solution of family and child behaviour problems (Edgar and Glezer 1986). Yet, a father accepting responsibility for behaviour problems is linked with positive outcomes.45. ______ Research studies lend strong support to the argument that there are benefits for families considering a change to a fairer or more equitable division of the pleasures and pains of family life. Greater equality in the performance of family work is associated with lower levels of family stress and higher self-esteem, better health, and higher marital satisfaction for mothers. There is also higher marital satisfaction of fathers, especially when they take more responsibility for the needs of their children--fathers are happier when they are more involved (Russell 1984). [A] Origins of anxiety in working mothers [B] The presumptions of policy makers [C] The experts' view of the male parent's role [D] Comparison of employed and non-employed mothers [E] The benefits of balanced responsibility [F] The unchanged role of the female parent [G] The impact of dual employment

填空题For a society to exist, it must have a system of leadership. Some people will have to have power over others. As Max Weber pointed out, however, people can perceive power as legitimate or illegitimate. Weber used the term authority to refer to legitimate power that is, power that people accept as right. In contrast, illegitimate power, coercion, is power that people do not accept as just. 1. Custom and authority Throughout the world's history, the most common form of authority has been traditional. Traditional authority, which is based on custom, is the hallmark of preliterate groups. In these societies, custom dictates basic relationships. 2. Traditional gender difference Gender relations in preliterate groups are also based on traditional authority. The divisions between men and women are based on the past, with custom determining that a gulf should be maintained between them. Custom also dictates the specifics of their relationships. 3. Change of tradition When traditional society changes, traditional authority is undermined. 4. Tradition in modern society Even in industrial and postindustrial societies, however, traditional authority never totally dies out. 5. Challenges to tradition This traditional authority, unquestioned in most places in the world, has not gone completely challenged, however. Just as for the widow of Spain and Portugal, matters are no longer as clear-cut as they once were, and some Western societies debate the right of parents to hit their kids. Although the images that come to mind when we think of power are those of government—kings, queens, coups, dictatorships, running for office, voting—traditional authority, in the sense of power relations, is also an inevitable part of everyday life. A. In a democracy, for example, the president's authority comes from the office, as specified in the written constitution, not from his or her reputation or personal characteristics. B. A good case in point is Sweden: it has even passed laws that forbid spanking, and Sweden authorities arrest parents who lay a hand on their children. C. For example, in small villages in southern Spain and in a large part of Portugal, widows are expected to wear only black until they remarry—which generally means that they wear black for the rest of their lives. The force of a tradition is so strong that if a widow were to violate the dress code, she would create a scandal. D. Parental authority provides an excellent example. Parents exercise authority over their children because they have always had such authority. From generations past, we inherit the idea that parents are not only responsible for providing their children with food, shelter, and discipline, but also that they have the right to choose their children's doctors and schools, and teach them religion and morality. E. For example, because of birth a particular individual becomes the chief, king, or queen. As far as members of that society are concerned, this is the right way to determine a ruler because "that is the way it has always been done." F. As a society industrializes, for example, new perspectives on life open up, and no longer does traditional authority go unchallenged. Thus, in contemporary southern Spain and parts of Portugal, you can see old women dressed in black from head to toe, and you immediately know their marital status. Younger widows, however, are likely to be indistinguishable from other women.

填空题{{B}}Directions:{{/B}}In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1. Most people would not object to living a few years longer than normal, as long as it meant they could live those years in good health. Sadly, the only proven way to extend the lifespan of an animal in this way is to reduce its calorie intake. Studies going back to the 1930s have shown that a considerable reduction in consumption ( about 50% ) can extend the lifespan of everything from dogs to nematode worms by between 30% and 70%. Although humans are neither dogs nor worms, a few people are willing to give the calorie-restricted diet a try in the hope that it might work for them, too. But not many—as the old joke has it, give up the things you enjoy and you may not live longer, but it will sure seem as if you did. Now, though, work done by Marc Hellerstein and his colleagues at the University of California, Berkeley, suggests that it may be possible to have, as it were, your cake and eat it too. Or, at least, to eat 95% of it. Their study, to be published in the American Journal of Physiology—Endocrinology and Metabolism, suggests that significant gains in longevity might be made by a mere 5% reduction in calorie intake. The study was done on mice rather than people. But the ubiquity of previous calorie-restriction results suggests the same outcome might well occur in other species, possibly including humans. However, you would have to fast on alternate days.(41)______ Cancer is the uncontrolled growth of cells. For a cancer to develop efficiently, it needs multiple mutations to accumulate in the DNA of the cell that becomes the tumor's ancestor.(42)______ A slower rate of cell division thus results in a slower accumulation of cancer-causing mutations.(43)______ Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton). Chemically, however, it behaves like its lighter relative. This means, among other things, that it gets incorporated into DNA as that molecule doubles in quantity during cell division.(44)______ Dr Hellerstein first established how much mice eat if allowed to feed as much as they want. Then he set up a group of mice that were allowed to eat only 95% of that amount. In both cases, he used the heavy-water method to monitor cell division. The upshot was that the rate of division in the calorie-restricted mice was 37% lower than that in those mice that could eat as much as they wanted--which could have a significant effect on the accumulation of cancer-causing mutations.(45)______ [A] To stop this happening, cells have DNA-repair mechanisms. But if a cell divides before the damage is repaired, the chance of a successful repair is significantly reduced. [B] Bingeing and starving is how many animals tend to feed in the wild. The uncertain food supply means they regularly go through cycles of too much and too little food ( it also means that they are often restricted to eating less than they could manage ff food were omnipresent). [C] But calorie-reduction is not all the mice had to endure. They were, in addition, fed only on alternate days: bingeing one day and starving the next. So, whether modern man and woman, constantly surrounded by food and advertisements for food, would really be able to forgo eating every other day is debatable. [D] Why caloric restriction extends the lifespan of any animal is unclear, but much of the smart money backs the idea that it slows down cell division by denying cells the resources they need to grow and proliferate. One consequence of that slow-down would be to hamper the development of cancerous tumors. [E] So, by putting heavy water in the diets of their mice, the researchers were able to measure how much DNA in the tissues of those animals had been made since the start of the experiment (and by inference how much cell division had taken place), by the simple expedient of extracting the DNA and weighing it. [F] The second reason, according to Elaine Hsieh, one of Dr Hellerstein's colleagues, is that cutting just a few calories overall, but feeding intermittently, may be a more feasible eating pattern for some people to maintain than making small reductions each and every day. [G] At least, that is the theory. Until now, though, no one has tested whether reduced calorie intake actually does result in slower cell division. Dr Hellerstein and his team were able to do so using heavy water as a chemical "marker" of the process.

填空题{{B}}Directions:{{/B}} The following paragraphs are given in a wrong order. For Questions 41-45, you are required to reorganize these paragraphs into a coherent text by choosing from the list A-G to fill in each numbered box. The first and the last paragraphs have been placed for you in Boxes. Mark your answers on ANSWER SHEET 1. [A] As a science, management entails the use of organized knowledge. Many of the things managers do are a result of information obtained through formal research and study. One area in which a great deal has been done is quantitative decision making or, as it is known today, management science. We know that by using certain mathematical formulas we can control inventory and project demand more accurately than by merely using trial and error. [B] Management is the process of getting things done through people. We know that part of this process is carried out with the development of an organization structure. [C] Yet management is also an art. Through experience the manager develops judgment and intuition, subjective factors that are useful in evaluation situations. For example, the manager may have to choose between two strategies, A and B. All research and study may indicate that neither of the two is any better than the other. [D] Effective management is a combination of art and science. Neither should be ignored; neither ought to be relied on exclusively. In getting things done through people, management must seek the right blend of art and science. At the upper levels of the hierarchy there will be more emphasis on the former; at the lower levels there will be more emphasis on the latter. [E] How do managers succeed in getting things done through people? In order to answer this question it is necessary to break down the manager's job into its basic duties or functions. Management entails planning, organizing, directing, and controlling. By performing well in each of these areas the manager can get things done through people. [F] However, what if the manager chooses strategy A on the basis of intuition and proves to be right? In this case it is difficult to say precisely why the manager was able to choose so well, but there must be some special ability he or she has. This same type of ability is useful in managing people. Effective managers know when to flatter their subordinates and when to be stern. Such human behavior skills cannot be quantified; they can only be learned through experience and training. [G] However, there is more to management than just organizing the people and the work. Objectives must be set, plans formulated, people directed, and operations controlled. In making the necessary decisions, management must rely on all the skills at its command. As a result, management is both a science and an art.