单选题Some drugs taken in large quantities can cause Upermanent/U brain damage.

单选题The hours ______ the children spend in their one-way relationship with television people undoubtedly affect their relationships with real-life people. A. in which B. on which C. when D. that

单选题I doubt that any historically valid treatment of that presidential administration can emerge for at least another decade, if then. I confess that when I came out of the White House I signed up to do an "insider volume", but sober, professional second thoughts have led me to put that project on ice until at least 1980. The problem is that I simultaneously know too much, and not enough. I know what I thought was happening. But I cannot fully document what happened. And I have seen enough highly classified documents to know that most of what the observers thought was happening was at best haft right, at worst dead wrong. This has steered me in a different direction as far as writing is concerned. I am now preparing what is frankly and unashamedly an ex parte memoir, "My Experiences in Washington." It is based on what I believed to be true, on the picture as I conceptualized it, of the presidential administration under which I worked.

单选题 It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in advance. You cannot make choices in this matter. You either have science or you don't, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly useful bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature. I regard this as the major discovery of the past hundred years of biology. It is, in its way, an illuminating piece of news. It would have amazed the brightest minds of the 18th century Enlightenment to be told by any of us how little we know and how bewildering seems the way ahead. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problem, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far they are from being answered. Because of this, we are depressed. It is not so bad being ignorant if you are totally ignorant; the hard thing is knowing in some detail the reality of ignorance, the worst spots and here and there the not-so-bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted. But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can't be answered, sooner or later, including even the matter of consciousness; to be sure, there may well be questions we can't think up, ever, and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.

单选题{{B}}Questions 21-25 are based on the following passage:{{/B}} A group of 11 delegates from the Chinese university returned home last week. They came in second place with 13 other university teams. The conference is the world's largest university-level UN simulation. It is held each April, for a week, in New York, to give students a chance to debate international affairs. It is meant to mirror the real-life business of the UN. Teams from more than 23 countries gathered this year to discuss and debate serious issues such as the AIDS epidemic and water shortages. Some UN senior staff members, U.S. professors, and former student participants formed the judge panel. The Chinese team applied to take part in the event and was assigned to represent Japan this year, working on various committees and arguing Japan's position on resolutions to problems like international migration. According to Li Xiaocong, the Chinese team leader, their efforts in ~mding approaches to resolutions made them stand out. Li attributes their success to "solid training".

单选题They decided to leave a big ______ to the waiter because the food and service had been excellent.

单选题We ______ play on the town square when we were children. A. are used to B. were used to C. used to D. use to

单选题Steel is an alloy composed ______ of iron and carbon. A. primarily B. traditionally C. carefully D. partially

单选题{{B}}Questions 21-25 are based on the following passage:{{/B}} The economy in the United States is heavily dependent on aluminum, a material widely used in the construction of buildings and in making such diverse things as cars, airplanes, and food containers. In 1979 Americans used over five million tons of new aluminum, and one and a half million tons of recycled aluminum. Some ninety percent of the bauxite (矾士) ore from which new aluminum is normally derived had to be imported to meet the demand. Poorer ores are abundant in the United States, however, researchers at Purdue University may recently have found a way to obtain aluminum magnetically from these. Although aluminum is not attracted by ordinary magnets, under special conditions it becomes temporarily "paramagnetic", or very weakly responsive to a magnetic field. This is achieved by immersing ore particles in water to which certain salts have been added and then filtering the ore through steel wool in the presence of a strong magnetic field. It is hoped that this technique will reduce the amount of high-grade aluminum the United States must import.

单选题Nancy: Have you heard about Dana? She is going to get married with Graham! Scott: ______ A. You're kidding ! B. Congratulations ! C. Is it a real thing? D. Good luck!

单选题Despite all the heated ______ they had, they remained the best of friends throughout their lives.

单选题A strike in the mining industry is ______ to bring a shortage of coal in the near future.

单选题In large part as a consequence of the feminist movement, historians have focused a great deal of attention in recent years on determining more accurately the status of women in various periods. Although much has been accomplished for the modern period, premodern cultures have proved more difficult: sources are restricted in number, fragmentary, difficult to interpret, and often contradictory. Thus it is not particularly surprising that some earlier scholarship concerning such cultures has so far gone unchallenged. An example is Johanna Bachofen's 1861 treatise on Amazons, women-ruled societies of questionable existence contemporary with ancient Greece., Starting from the premise that mythology and legend preserve at least a nucleus of historical fact, Bachofen argued that women were dominant in many ancient societies. His work was based on a comprehensive survey of references in the ancient sources to Amazonian and other societies with matrilineal customs-societies in which descent and property rights are traced through the female line. Some support for his theory can be found in evidence such as that drawn from Herodotus, the Greek "historian" of the fifth century B.C., who speaks of an Amazonian society, the Sauromatae, where the women hunted and fought in wars. A woman in this society was not allowed to marry until she had killed a person in battle. Nonetheless, this assumption that the first recorders of ancient myths have preserved facts is problematic. If one begins by examining why ancients refer to Amazons, it becomes clear that ancient Greek descriptions of such societies were meant not so much to represent observed historical fact--real Amazonian societies--but rather to offer "moral lessons" on the supposed outcome of women’ rule in their own society. The Amazons were often characterized, for example, as the equivalents of giants and centaurs, enemies to be slain by Greek heroes. Their customs were presented not as those of a respectable society, but as the very antitheses of ordinary Greek practices. Thus, I would argue, the purpose of accounts of the Amazons for their male Greek recorders was didactic to teach both male and female Greeks that all-female groups, formed by withdrawal from traditional society, are destructive and dangerous. Myths about the Amazons were used as arguments for the male-dominated status quoin, in which groups composed exclusively of other sex were not permitted to segregate themselves permanently from society. Bachofen was thus misled in this reliance on myths for information about the status of women. The sources that will probably tell contemporary historians most about women in the ancient world are such social documents as gravestones, wills, and marriage contracts. Studies of such documents have already begun to show how mistaken we are when we try to derive our picture of the ancient world exclusively from literary sources, especially myths.

单选题{{B}}Passage Four{{/B}} The remarkable progress of science and technology in the 20th century has brought enormous benefits to humankind. Long and healthy lives, economic prosperity and a pleasant and convenient living environment have resulted from technological progress based on advances in scientific knowledge. This progress will continue or may even accelerate in the future, because both the number of scientists and their activities are expanding throughout the world. We may expect, therefore, that science and technology will continue to contribute to the development of human society. At the same time, rapid scientific advances may raise some difficult problems. First of all, the disparity in scientific knowledge between those in scientific and technical professions and those in other areas will continuously expand. This may create a communications gap between the two groups that could affect obtaining public consent on important issues, such as the use of genetically engineered plants or human embryonic stem cells. Secondly, the 21st century will be characterized by a knowledge-based society and a knowledge of science will be required for many professions. Those who lack scientific knowledge will have fewer opportunities for good jobs. Thirdly, the enormous increase in scientific information will become a burden for children who must study science. Already young people seem to be losing interest in science, and this trend may increase in the future. Over the past several years, enrollment in high-school physics courses in Japan has been decreasing, which suggests that many young people are losing interest in physics or avoiding subjects that require diligent study. Finally, scientific research in the next century will require increasing levels of public investment because sophisticated research is usually expensive. If the public loses interest in, science or does not understand the importance of research, it will become difficult for scientists to obtain sufficient financial support. Because of these considerations, I think that we need to carefully review present science education at different levels and to improve it in order to meet the expected rapid progress of science in the 21st century. At the level of primary education, the' most important task is to stimulate children's interest in nature. Naive surprise at the wonders of nature will hopefully lead to a later interest in science. During their secondary education, students must learn logic and the principles of natural phenomena. They will gradually separate into groups of those who like and those who dislike science. It will be difficult to provide the latter students with the scientific basics that would be useful throughout their lives. This is also the case in university education. It is becoming a goal of general university education to give students who are not majoring in natural science and engineering some level of scientific literacy. In the future, all citizens, especially those expected to lead diverse areas of society should have a sound basis for understanding the progress of science. Because the pace of progress will accelerate further, continuing science education for the public is also of great importance.

单选题I'd rather you ______ me. You've made the matter all the worse. A. had not helped B. did not help C. will not help D. would not have helped

单选题Many (people) who live in Beijing (thinks) (life) in a large city (offers) special advantages.

单选题The police investigated the ______ about the bank robbery. A. stander-by B. stander-bys C. standers-by D. standers-bys

单选题We shall send you commercial invoice, bills of lading and insurance certificates so that you can ______ the goods on a D/P basis. A. consume B. complain C. concern D. claim

单选题 Large lecture classes are frequently regarded as a necessary evil. Such classes {{U}} {{U}} 1 {{/U}} {{/U}}be offered in many colleges and universities to meet high student {{U}} {{U}} 2 {{/U}} {{/U}}with limited faculty resource,{{U}} {{U}} 3 {{/U}} {{/U}}teaching a large lecture class can be a {{U}} {{U}} 4 {{/U}} {{/U}}task. Lecture halls are {{U}} {{U}} 5 {{/U}} {{/U}}large, barren, and forbidding. It is difficult to get to know students. Students may seem bored in the {{U}} {{U}} 6 {{/U}} {{/U}}environment and may {{U}} {{U}} 7 {{/U}} {{/U}} read newspapers or even leave class in the middle of a lecture. Written work by the students seems out of the {{U}} {{U}} 8 {{/U}} {{/U}}. Although the challenges of teaching a large lecture class are {{U}} {{U}} 9 {{/U}} {{/U}}, they are not insurmountable. The solution is to develop {{U}} {{U}} 10 {{/U}} {{/U}}methods of classroom instruction that can reduce, if not {{U}} {{U}} 11 {{/U}} {{/U}}, many of the difficulties {{U}} {{U}} 12 {{/U}} {{/U}}in the mass class. In fact, we have {{U}} {{U}} 13 {{/U}} {{/U}}at Kent State University teaching techniques which help make a large lecture class more like a small {{U}} {{U}} 14 {{/U}} {{/U}}. An {{U}} {{U}} 15 {{/U}} {{/U}}but important benefit of teaching the course {{U}} {{U}} 16 {{/U}} {{/U}}this manner has involved the activities of the teaching assistants who help us mark students' written work. The faculty instructor originally decided to ask the teaching assistants for help {{U}} {{U}} 17 {{/U}} {{/U}}this was the only practical way to {{U}} {{U}} 18 {{/U}} {{/U}}that all the papers could be evaluated. Now those {{U}} {{U}} 19 {{/U}} {{/U}}report enjoying their new status as "junior professors", gaining a very different {{U}} {{U}} 20 {{/U}} {{/U}}on college education by being on the other side of the desk, learning a great deal about the subject matter, and improving their own writing as a direct result of grading other students' papers.

单选题Salesperson: Welcome to Red Rooster. Can I help you? Customer: ______