单选题Individuals may at various points in their lives experience discrimination in the allo cation of resources either______of being too old or too young. A. at the risk B. to the point C. in the case D. on the ground

单选题 As to the living environment, bacterial needs vary, but most of them grow best in a slightly acid ______.

单选题"This park has more than 200 waterfalls that are 15 feet or higher, And 150 of them have never been mapped or photographed," says park historian Lee Whittlesey. "Now that's a ______ to the size of Yellowstone." A. proposition B. hypothesis C. ceremony D. testimony

单选题Livestock breeders are ______ much thought and ingenuity to the improvement of this strain.

单选题______, the factories had not closed, and those who needed work most were given a chance to survive during the econmic disaster. A. Unintentionally B. Mercifully C. Importunately D. Tragically

单选题It ______ me to see him in such a bad health. He was such an energetic and strong young man only several months ago.

单选题His compass proved______ to him when he was lost in unknown country.

单选题She has to be very______because she hasn't much money.

单选题 Yeats was beginning to use a vocabulary freshly minted from the treasury of Gaelic literature, and many of the shorter poems in The Countess Kathleen and Various Legends and Lyrics (1892) deal with a mythology Ireland had well nigh forgotten and England never known. For Arthur and his Round Table Yeats substituted the very different Conchubar and his Red Branch Warriors, and Finn and his Fenians. The Red Branch cycle of legends included Fergus, whom Ness had tricked out of his kingdom so that her son Conchubar could rule over Ulster in his stead, and in Fergus and the Druid Yeats makes him avid for dreaming wisdom. Fergus was the unwitting agent of the doom of the Sons of Usna, Naoise the lover of Deirdre and his brothers Ardan and Ainle, who had accompanied the lovers to Scotland when they fled from Conchubar's wrath, for Deirdre was Conchubar's intended bride. Fergus had persuaded them to return against the wishes of Deirdre and had been tricked out of acting as their safe conduct. He joined with Maeve, Queen of Connaught, after this, in her raid on Ulster, in which Cuchulain achieved his great fame as Ulster's champion. Cuchulain is the Achilles of the Irish Saga, and he appears throughout Yeats's plays and poems, as warrior, as husband of Emer, as lover of Eithne Inguba, and of Aoife, as the unknowing killer of his own son and finally as victim of the sea.

单选题In a sense, the new protectionism is not protectionism at all, at least not in the traditional sense of the term. The old protectionism referred only to trade restricting and trade expanding devices, such as the tariff or export subsidy. The new protectionism is much broader than this; it includes interventions into foreign trade but is not limited to them. The new protectionism, in fact, refers to how the whole of government intervention into the private economy affects international trade. The emphasis on trade is still there, thus came the term "protection". But what is new is the realization that virtually all government activities can affect international economic relations. The emergence of the new protectionism in the Western world reflects the victory of the interventionist, or welfare economy over the market economy. Jab Tumiler writes, "The old protectionism...coexisted, without any apparent intellectual difficulty with the acceptance of the market as a national as well as an international economic distribution mechanism. Indeed, protectionists as well as (if not more than) free traders stood for laissez faire. Now, as in the 1930s, protectionism is an expression of a profound skepticism as to the ability of the market to distribute resources and incomes to societies satisfaction." It is precisely this profound skepticism of the market economy that is responsible for the protectionism. In a market economy, economic change of various colors implies redistribution of resources and incomes. The same opinion in many communities apparently is that such redistributions often are not proper. Therefore, the government intervenes to bring about a more desired result. The victory of the welfare state is almost complete in northern Europe. In Sweden, Norway, Finland, Denmark, and the Netherlands, government intervention in almost all aspects of economic and social life is considered normal. In Great Britain this is only somewhat less true. Government traditionally has played a very active role in economic life in France and continued to do so. Only West Germany dares to go against the tide towards excessive interventionism in Western Europe. It also happens to be the most successful Western European economy. The welfare state has made significant progress in the United States as well as in Western Europe. Social security, unemployment insurance, minimum wage laws, and rent control are by now traditional welfare state elements on the American scene.

单选题A noisy aggressive cousin of the crow, the magpie has those bird's thievish habits.

单选题Who would have thought we would become a planet of "ologies"? There's biology, psychology, herpetology, etymology, and geology just to name a few. However, one "ology" truly helps us to understand the most part of our planet, our environment. Ecology(which is filled with ecologists)is the study of ecosystems and the beings and organisms that inhabit those ecosystems. Just think, in condition of bees, deer and other organisms, you are important to ecologists. Ecosystems are communities that vary in size and location. They can be as small as a patch of glass or as large as the entire biosphere. The many varieties of plants and animals that exist in our planet ecosystems are important to our ecosystems. Plants in particular provide oxygen and nutrients all organisms need to survive. These producers have the ability to use the sun's energy to produce food(think photosynthesis). This is where the animals and consumers become important. The animals get their energy by eating the plants and other organisms within the ecosystem. Without the producers and consumers, decomposers would not have a job. As you may have guests, decomposers, like bacteria, step in broken down, the organic materials are absorbed by the soil and gases are sent back into our atmosphere. The whole process is ready to start again through the Earth's natural cycles. There has to be a balance of producers, consumers, decomposers in order to remain a balanced ecosystem. Remember, all organisms need matter and energy to survive. An ecosystem is balanced when matter and energy move efficiently through those ecosystems. Just as your backpack has a limit on the number of huge textbooks it can carry at any given time, all ecosystems have a limit on the populations they can maintain. Carrying capacity is the largest population an ecosystem can support at any particular time. The support of this population depends on the amount of resources(matter and energy)that are available and the movement of those resources within that ecosystem. If energy and matter are moving efficiently through an ecosystem, then the current population of plants and animals has not reached beyond the ecosystem's the ecosystem's carrying capacity. Once resources dwindle or animal populations increase dramatically, the ecosystem may not be able to support those populations. Fortunately, nature has three ways to control the balance of ecosystems: ecological responses to change, energy transfer, and food chains and food webs.

单选题It's often a mistake to ______ appearance; that poor-looking individual is anything but poor. In fact, he is a millionaire.

单选题When Ph. D candidates ______ their impending professorships, they consider housing benefits offered by the prospective universities.

单选题If you see that the street is wet in the morning, you would ______ that it must have rained during the night. A. reduce B. seduce C. deduce D. induce

单选题 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.{{B}}Passage One{{/B}} The study of social science is more than the study of the individual social sciences. Although it is tree that to be a good social scientist you must know each of those components, you must also know how they interrelate. By specializing too early, many social scientists can lose sight of the interrelationships that are so essential to understanding modem problems. That's why it is necessary to have a course covering all the social sciences. In fact, it would not surprise me if one day a news story, such as the one above should appear. The preceding passage placed you in the future. To understand how and when social science broke up, you must go into the past. Imagine for a moment that you're a student in 1062, in the Italian city of Bologna, site of one of the first major universities in the western world. The university has no buildings. It consists merely of a few professors and students. There is no tuition fee. At the end of a professor's lecture, if you like it, you pay. And if you don't like it, the professor finds himself without students and without money. If we go back still earlier, say to Greece in the sixth century B. C. , we can see the philosopher Socrates walking around the streets of Athens, arguing with his companions. He asks them questions, and then other questions, leading these people to reason the way he wants them to reason (this became known as the Socratic method). Times have changed since then; universities sprang up throughout the world and created colleges within the universities. Oxford, one of the first universities, now has thirty colleges associated with it, and the development and formalization of educational institutions has changed the roles of both students and faeuhy. As knowledge accumulated, it became more and more difficult for one person to learn, let alone retain it all. In the sixteenth century one could still aspire to know all there was to know, and the definition of the Renaissance man (people were even more sexist then than they are now) was of one who was expected to know about everything. Unfortunately, at least for someone who wants to know everything, the amount of information continues to grow {{U}}exponentially{{/U}} while the size of the brain has grown only slightly. The way to deal with the problem is not to try to know everything about everything. Today we must specialize. That is why social science separated from the natural sciences and why it, in turn, has been broken down into various subfields, such as anthropology and sociology.

单选题(略){{B}}Part Ⅱ Reading Comprehension{{/B}}Each passage is followed by some questions or unfinished statements. For each or them there are four choices marked A, B, C and D. You should decide on the best choice. Eight times within the past million years, something in the Earth's climatic equation has changed, allowing snow in the mountains and the northern latitudes to accumulate from one season to the next instead of melting away. Each time, the enormous ice sheets resulting from this continual buildup lasted tens of thousands of years until the end of each particular glacial cycle brought a warmer climate. Scientists speculated that these glacial cycles were ultimately driven by astronomical factor: slow, cyclic changes in the eccentricity of the Earth's orbit and in the tilt and orientation of its spin axis. But up until around 30 years ago, the lack of an independent record of ice-age timing made the hypothesis untestable. Then in the early 1950's Emiliani produced the first complete record of the waxings and wanings of first glaciations. It came from a seemingly odd place, the seafloor. Single-cell marine organisms called "foraminifera" house themselves in shells made from calcium carbonate. When the foraminifera die, sink to the bottom, and become part of seafloor sediments, the carbonate of their shells preserves certain characteristics of the seawater they inhabited. In particular, the ratio of a heavy isotope of oxygen (oxygen-18) to ordinary oxygen (oxygen-16) in the carbonate preserves the ratio of the two oxygens in water molecules. It is now understood that the ratio of oxygen isotopes reflects the proportion of the world's water locked up in glaciers and ice sheets. A kind of meteorological distillation accounts for the link. Water molecules containing the heavier isotope tend to condense and fall as precipitation slightly sooner than molecules containing the lighter isotope. Hence, as water vapor evaporated from warm oceans moves away from its source, its oxygen- 18 returns more quickly to the oceans than does its oxygen-16. What falls as snow on distant ice sheets and mountain glaciers is relatively depleted of oxygen-18. As the oxygen-18-poor ice builds up, the oceans become relatively enriched in the isotope. The larger the ice sheets grow, the higher the proportion of oxygen-18 becomes in seawater--and hence in the sediments Analyzing cores drilled from seafloor sediments, Emiliani found that the isotopic ratio rose and fell in rough accord with the Earth's astronomical cycles. Since that pioneering observation, oxygenisotope measurements have been made on hundreds of cores. The combined record enables scientists to show that the re-cord contains the very periodicities as the orbital processes. Over the past 800, 000 years, the global ice volume peaked every 100,000 years, matching the period of the orbital eccentricity variation. In addition, "wrinkles" superposed on each cycle--small decreases or surges in ice volume--have come at intervals of roughly 23,000 and 41,000 years, in keeping with the precession and tilt frequencies of the Earth's spin axis.

单选题Totheirgreatdismay,theyfoundthattheirwageincreaseshadbeen_____bythesoaringpricesasaresultofinflation.