单选题In the massive Zambezi River system, fish are not only vital to the ecosystem, but also a staple in the diet of millions of people. Yet, little is known about the species, their movements and the stocks. In hopes of ensuring that these fish stocks will continue to be around for many years to come, the African Wildlife Foundation has embarked on extensive research and monitoring efforts in the Zambezi River, its tributaries and related reservoirs. While tracking the fish of the Zambezi River system, AWF learned of a sport-fishing tournament taking place on the river. AWF decided to join the tournament. All the tournament catches were carefully monitored and recorded, providing invaluable data on the health and size of key trophy specimens. For the first time in history, real data is now available on the effect of the human population on the Zambezi River network, on the use of incompatible fishing methods, incompatible land uses (like deforestation, which leads to erosion and massive deposits of silt in the river), and over-fishing. All the research will help AWF and its partners to help guide fishery policy and legislation—and help local communities create fishing strategies that are not just profitable, but truly sustainable. For many years, the fish of the Zambezi River network have been bountiful. In fact, the upper part of the river alone feeds 300,000 people. The sardine catch in Lake Kariba yields more than 30,000 tons of fish annually—amounting to more than $55 million a year. To manage the region's fisheries effectively, to monitor water quality, and to keep track of fish yields and fishing activities, AWF created the Aquatic Resources Working Group (ARWG). Its first priority was to gain a greater understanding of the fish that swim in the Zambezi River system as well as a clearer picture of the river system itself. Although data collection will continue, the ARWG has already collected a significant amount of data. Now underway are pilot business ventures with fisheries and the creation of a formal fishing association in which registered fishermen drawn from the local community in Mozambique will undergo training in business skills, best-practice fishing, energy-efficient fish processing and marketing. The future is looking bright for both the fish and the communities along the Zambezi River system.

单选题The town planning commission said that their financial outlook for the next year was optimistic. They expect increased tax

单选题The chimney {{U}}vomited{{/U}} a cloud of smoke.

单选题Malaria is all infectious parasitic disease that can be either acute or chronic and is frequent______.

单选题After thirty years of television, people have become "speed watchers"; consequently, if the camera lingers, the interest of the audience ______.

单选题Which of the following statements about the Third Age in paragraph 2 is true?

单选题Cloning shakes us all to our very souls. For humans to consider the cloning of one another forces them all to question the very concepts of right and wrong that make them all human. The cloning of any species, whether they be human or non-human, is wrong. Scientists and ethicists alike have debated the implications of human or non-human cloning extensively since 1997 when scientists at Roslin Institute in Scotland produced Dolly. No direct conclusions have been drawn, but compelling arguments state that cloning of both human and non-human species results in harmful physical and psychological effects on both groups. The possible physical damage that could be done if human cloning became a reality is obvious when one looks at the sheer loss of life that occurred before the birth of Dolly. Less than ten percent of the initial transfers survive to be healthy creatures. There were 277 trial implants of nuclei. Nineteen of those 277 were deemed healthy while the others were discarded. Five of those nineteen survived, but four of them died within ten days of birth of severe abnormalities. Dolly was the only one to survive. Even lan Wilmut, one of the scientists accredited with the cloning phenomenon at the Roslin Institute agrees, "the more you interfere with reproduction, the more danger there is of things going wrong." The psychological effects of cloning are less obvious, but nonetheless, very plausible. In addition to physical harms, there are worries about the psychological harms to cloned human children. One of those harms is that cloning creates serious issues of identity and individuality. Human cloning is obviously damaging to both the family and the cloned child. It is harder to convince that non-human cloning is wrong and unethical, but it is just the same. Western culture and tradition has long held the belief that the treatment of animals should be guided by different ethical standards than the treatment of humans. Animals have been seen as non-feeling and savage beasts since time began. Humans in general have no problem with seeing animals as objects to be used whenever it becomes necessary. But what would happen if humans started to use animals as body for growing human organs? What if we were to learn how to clone functioning brains and have them grow inside of chimps? Would non-human primates, such as a chimpanzee, who carried one or more human genes via transgenic technology, be defined as still a chimp, a human, a subhuman, or something else? If defined as human, would we have to give it rights of citizenship? And if humans were to carry non-hum, an transgenic genes, would that alter our definitions and treatment of them? Also, if the technology were to be so that scientists could transfer human genes into animals and vice versa, it could create a worldwide catastrophe that no one would be able to stop.

单选题Special may be too impoverished a word to describe this triumph tor a man who climbed to the pinnacle of sport from______ beginnings as the sponsor ot'a roller-hockey team.(2003年西南财经大学考博试题)

单选题He is going to______the meeting on the subject of war and peace in a minute.

单选题From Christianity and the barbarian kingdoms of the west emerged the medieval version of politics______in turn evolved the politics of our modern world.

单选题I"ll go to the airport tomorrow morning to ______ a good friend who leaves for Australia.

单选题The history of responses to the work of the artist Sandro Botticelli (1444-1510) suggests gests that widespread appreciation by critics is a relatively recent phenomenon. Writing in 1550, Vasari expressed an unease with Botticelli's work, admitting that the artist fitted awkwardly into his evolutionary scheme of the history of art. Over the next two centuries, academic art historians defamed Botticelli in favor of his fellow Florentine, Michelangelo. Even when anti-academic art historians of the early nineteenth century rejected many of the standards of evaluation adopted by their predecessors, Botticelli's work remained out side of accepted taste, pleasing neither amateur observers nor connoisseurs. (Many of his best paintings, however, remained hidden away in obscure churches and private homes. ) The primary reason for Botticelli's unpopularity is not difficult to understand: most observers, up until the mid-nineteenth century, did not consider him to be noteworthy, because his work, for the most part, did not Seem to these observers to exhibit the traditional characteristics of fifteenth-century Florentine art. For example, Botticelli rarely employed the technique of strict perspective and, unlike Michelangelo, never used chiaroscuro. Another reason for Botticelli's unpopularity may have been that his attitude toward the style of classical art was very different from that of his contemporaries. Although he was thoroughly exposed to classical art, he showed little interest in borrowing from the classical style. Indeed, it is paradoxical that a painter of large-scale classical subjects adopted a style that was only slightly similar to that of classical art. In any case, when viewers began to examine more closely the relationship of Botticelli's work to the tradition of fifteenth-century Florentine art, his reputation began to grow. Analyses and assessments of Botticelli made between 1850 and 1870 by the artists of the Pre-Raphaelite movement, as well as by the' writer Pater (although he, unfortunately, based his assessment on an incorrect analysis of Botticelli's personality), inspired a new appreciation of Botticelli throughout the English-speaking world. Yet Botticelli's work, especially the Sistine frescoes, did not generate worldwide attention until it was finally subjected to a comprehensive and scrupulous analysis by Home in 1908. Home rightly demonstrated that the frescoes shared important features with paintings by other fifteenth-century Florentines-features such as skillful representation of anatomical proportions, and of the human figure in motion. However, Home argued that Botticelli did not treat these qualities as ends in themselves-rather, that he emphasized clear depletion of a story, a unique achievement and one that made the traditional Florentine qualities less central. Because of Home's emphasis crucial to any study of art, the twentieth century has come to appreciate Botticelli's achievements.

单选题The objective of this popular consultation is to determine,______, the final political status of the region, whether to remain of the country as a special district, or to part from it.

单选题It was (and is) common to think that other animals are ruled by "instinct" whereas humans lost their instincts and ruled by "reason," and that this is why we are so much more flexibly intelligent than other animals. William James, in his book Principles of Psychology, took the opposite view. He argued that human behavior is more flexibly intelligent than that of other animals because we have more instincts than they do, not fewer. We tend to be Mind to the existence of these instincts, however, precisely because they work so well--because they process information so effortlessly and automatically. They structure our thought so powerfully, he argued, that it can be difficult to imagine how things could be otherwise. As a result, we take "normal" behavior for granted. We do not realize that "normal" behavior needs to be explained at all. This "instinct blindness" makes the study of psychology difficult. To get past this problem, James suggested that we try to make the "natural seem strange." It takes a mind debauched by learning to carry the process of making the natural seem strange, so far as to ask for the why of any instinctive human act. In our view, William James was right about evolutionary psychology. Making the natural seem strange is unnatural - it requires the twisted outlook seen, for example, in Gary Larson cartoons Yet it is a central part of the enterprise. Many psychologists avoid the study of natural competences, thinking that there is nothing there to be explained. As a result, social psychologists are disappointed unless they find a phenomenon "that would surprise their grandmothers," and cognitive psychologists spend more time studying how we solve problems we are bad at, like learning math or playing chess, than ones we are good at. But our natural competences - our abilities to see, to speak, to find someone beautiful, to reciprocate a favor, to fear disease, to fall in love, to initiate an attack, to experience moral outrage, to navigate a landscape, and myriad others - are possible only because there is a vast and heterogeneous array of complex computational machinery supporting and regulating these activities. This machinery works so well that we don't even realize that it exists - we all suffer from instinct' blindness. As a result, psychologists have neglected to study some of the most interesting machinery in the human mind.

单选题Furthermore, if I were to leave him, he would ______, for he cannot endure to be separated from me for more than one hour.(2005年中国科学院考博试题)

单选题As the director can't come to the reception, I'm representing the company ______. A. on his account B. on his behalf C. for his part D. in his interest

单选题The relationship between technology and development is complicated. At times the negative features of technology seem to ______ the positive ones. A.withdraw B.discharge C.maximize D.outweigh

单选题You will find the scenery is so beautiful if you view from the ______ of the hill.

单选题The village lies over the mountain and is ______ only by boat.