THE COMPARISON OF NUMA WITH LYCURGUS
PP2填空_答案和分析
1.The philosopher claimed that a person who must consciously _____ his or her own indifference before helping another is behaving more nobly than one whose basic disposition allows such an act to be performed without _____.feign...enthusiasmmentembrace...duplicitysuffer...effortovercome..deliberation(key)哲學家宣稱:在幫助一個人之前,有意放棄他自己的漠然心態的人將比沒有經過思考,而允許這樣的行為被執行的人要做得好.。
第一個空格肯定是放棄,克服之類的意思,因為后面說這樣將more nobly。
后一個空格without deliberation和consciously相對。
More…than是GRE填空中典型的對應結構,注意體會一下其中的關系。
2.In scientific studies, supporting evidence is much more satisfying to report than are discredited hypotheses, but, in fact, the ____ of errors is morelikely to be _____ than is the establishment of probable truth.formulation.. permittedcorrection..ingnoredeful(key)accumulation..agreeablerefinement..conditional在科學研究中,支持一個現象比丟棄一個假設更加讓人滿意。
新GRE模考题
新G R E模考题(总12页)--本页仅作为文档封面,使用时请直接删除即可----内页可以根据需求调整合适字体及大小--新GRE 模考题Sect ion 3For Questions 1 to 5, select one entry for each blank from the corresponding column of choices. Fill all blanks in the way that best completes the text.1. Cynics believe that people who ______ compliments do so in order to be praised twice.(A) bask in(B) give out(C) despair of(D) gloat over(E) shrug off2. The Chinese, who began systematic astronomical and weather observations shortly after the ancient Egyptians, were assiduous record-keepers, and because of this, can claim humanity’s longest continuous ______ of natural events.(A) defiance(B) documentation(C) maintenance(D) theory(E) domination3. Nineteenth-century scholars, by examining earlier geometric Greek art, found that classical Greek art was not a magical ______ or a brilliant ______ blending Egyptian and Assyrian art, but was independently evolved by Greeks in Greece.4. Their mutual teasing seemed ______, but in fact it ______ a long-standing hostility.5. The astronomer and feminist Maria Mitchell’s own prodigious activity and the vigor of the Association for the Advancement of Women during the 1870’s ______ any assertion that feminism was ______ in that period.Questions 6 to 7 are based on the following reading passage.From the 1900’s through the 1950’s waitresses in the United States develo ped a form of unionism based on the unions’ defining the skills that their occupation included and enforcing standards for the performance of those skills. This “occupational unionism” differed substantially from the “worksite unionism” preva lent among factory workers. Rather than unionizing the workforces of particular employers, waitress locals soughtto control their occupation throughout a city. Occupational unionism operated through union hiring halls, which provided free placement services to employers who agreed to hire their personnel only through the union. Hiring halls offered union waitresses collective employment security, not individual job security—a basic protection offered by worksite unions. That is, when a waitress lost her job, the local did not intervene with her employer but placed her elsewhere; and when jobs were scarce, the work hours available were distributed fairly among all members rather than being assigned according to seniority.6. The primary purpose of the passage is to(A) analyze a current trend in relation to the past(B) discuss a particular solution to a long-standing problem(C) analyze changes in the way that certain standards have been enforced(D) apply a generalization to an unusual situation(E) describe an approach by contrasting it with another approach7. The author of the passage mentions “particular employers” (line 5) primarily in order to(A) suggest that occupational unions found some employers difficult to satisfy(B) indicate that the occupational unions served some employers but not others(C) emphasize the unique focus of occupational unionism(D) accentuate the hostility of some employers toward occupational unionism(E) point out a weakness of worksite unionismQuestions 8 to 9 are based on the following reading passage.The dark regions in the starry night sky are not pockets in the universe that are devoid of stars as had long been thought. Rather, they are dark because of interstellar dust that hides the stars behind it. Although its visual effect is so pronounced, dust is only a minor constituent of the material, extremely low in density, that lies between the stars. Dust accounts for about one percent of the total mass of interstellar matter. The rest is hydrogen and helium gas, with small amounts of other elements. The interstellar material, rather like terrestrial clouds, comes in all shapes and sizes. The average density of interstellar material in the vicinity of our Sun is 1,000 to 10,000 times less than the best terrestrial laboratory vacuum. It is only because of the enormous interstellar distances that so little material per unit of volume becomes so significant. Optical astronomy ismost directly affected, for although interstellar gas is perfectly transparent, the dust is not. For the following question, consider each of the choices separately and select all that apply.8. It can be inferred from the passage that the density of interstellar material is(A) equal to that of interstellar dust(B) unusually low in the vicinity of our Sun.(C) not homogeneous throughout interstellar space.9. Select a sentence in the passage which gives the reason why stars can be obscured even by very sparsely distributed matter.For Questions 10 to 13, select the two answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.10. Industrialists seized economic power only after industry had______agriculture as the preeminent form of production; previously such power had resided in land ownership.(A) sabotaged(B) overtaken(C) toppled(D) joined(E) supplanted(F) surrogated11. Many industries are so______ by the impact of government sanctions, equipment failure, and foreign competition that they are beginning to rely on industrial psychologists to salvage what remains of employee morale.(A) estranged(B) beleaguered(C) overruled(D) encouraged(E) restrained(F) besieged12. Not wishing to appear ______, the junior member of the research group refrained fromventuring any criticism of the senior members’ plan f or dividing up responsibility for the entire project.(A) reluctant(B) inquisitive(C) presumptuous(D) pretentious(E) censorious(F) moralistic13. The natures of social history and lyric poetry are antithetical , social history always recounting the ______and lyric poetry speaking for unchanging human nature, that timeless essence beyond fashion and economics.(A) bygone(B) evanescent(C) unnoticed(D) unalterable(E) transitory(F) eternalQuestions 14-16 are based on the following passage.The 1973 Endangered Species Act made into legal policy the concept that endangered species of wildlife are precious as part of a natural ecosystem. The nearly unanimous passage of this act in the United States Congress, reflection the rising national popularity of environmentalism, masked a bitter debate. Affected industries clung to the former wildlife policy of valuing individual species according to their economic usefulness. They fought to minimize the law’s impact by limiting definitions of k ey terms. But they lost on nearly every issue. The act defined “wildlife” as almost all kinds of animals—from large mammals to invertebrates—and plants. “Taking” wildlife was defined broadly as any action that threatened an endangered species; areas vital to a species’ survival could be federally protected as “critical habitats”. Though these definitions legislated strong environmentalist goals, political compromises made in the enforcement of the act were to determine just what economic interests would be set aside for the sake of ecological stabilization.For the following question, consider each of the choices separately and select all that apply.14. According to the passage, all of the following statements are defined as a “critical habitat” EXCEPT(A) A natural ecosystem that is threatened by imminent development(B) A natural area that is crucial to the survival of a species and thus eligible for federal protection.(C) A wilderness area in which the “taking” of wildlife species is permitted rarely and only under strict federal regulation15. It can be inferred from the passage that if business interests had won the debate on provisions of the 1973 Endangered Species Act, which of the following would have resulted(A) Environmentalist concepts would not have become widely popular.(B) The definitions of key terms of the act would have been more restricted.(C) Enforcement of the act would have been more difficult.(D) The act would have had stronger support from Congressional leaders.(E) The public would have boycotted the industries that had the greatest impact in defining the act.16. The author refers to the terms “wildlife” (line 11), “taking” (line 13), and “critical habitats” (line 16) most likely in o rder to(A) illustrate the misuse of scientific language and concepts in political processes(B) emphasize the importance of selecting precise language in transforming scientific concepts into law(C) represent terminology whose definition was crucial in writing environmentalist goals into law(D) demonstrate the triviality of the issues debated by industries before Congress passed the Endangered Species Act(E) show that broad definitions of key terms in many types of laws resulted in ambiguity and thus left room for disagreement about how the law should be enforcedQuestions 17-19 are based on the following passage.Allen and Wolkowitz’s research challenges the common claim that homework-waged labor performed women worker’s needs and preferences. By focusing on a limited geographical area in order to gather in-depth information, the authors have avoided the methodological pitfalls that have plagued earlier research on homework. Their findings disprove accepted notions about homeworkers: that they are unqualified for other jobs and that they use homework as a short-term strategy for dealing with child care. The authors conclude that the persistence of homework cannot be explained by appeal to such notions, for in fact, homeworkers do not differ sharply from other employed women. Most homeworkers would prefer to work outside the home but are constrained from doing so by lack of opportunity. In fact, homework is driven by employers’ desires to minimize fixed costs: homeworkers receive no benefits and are paid less than regular employees.17. The passage is primarily concerned with(A) advocating a controversial theory(B) presenting and challenging the results of a study(C) describing a problem and proposing a solution(D) discussing research that opposes a widely accepted belief(E) comparing several explanations for the same phenomenonFor the following question, consider each of the choices separately and select all that apply.and Wolkowitz’s research suggests which of following statements are true about most homeworkers(A) They do not necessarily resort to homework as a strategy for dealing with child care.(B) They perform professional-level duties rather than manual tasks or piecework.(C) They do not prefer homework to employment outside the home.19. The ratio of divorces to marriage has increased since 1940. Therefore, there must be a greater proportion of children living with only one natural parent than there was in 1940.Which of the following, if true, most strongly weakens the inference drawn aboveA. the number of marriages entered into by women twenty-five to thirty-five years old has decreased since 1940.B. when there is a divorce, children are often given the option of deciding which parent they will live with.C. since 1940 the average number of children in a family has remained approximately steady and has not been subject to wide fluctuations.D. before 1940 relatively few children whose parents had both died were adopted into single-parent families.E. the proportion of children who must be raised by one parent because the other has died has decreased since 1940 as a result of medical advances.For Questions 20, select one entry for each blank from the corresponding column of choices. Fill all blanks in the way that best completes the text.20. Scientists (i)___________ disposition (ii)____________ the impact of human activities on climate has been greatly mitigated-- perhaps even counterbalanced—by the natural trend over the past several centuries toward much cooler weather. This optimistic conclusion seems unrealistic to other scientists, who find it difficult to believe either that the greenhouse effect could be (iii)_________, or that such a fortunate combination of event is likely.Sect ion 5For Questions 1 to 4, select one entry for each blank from the corresponding column of choices. Fill all blanks in the way that best completes the text.1. The current demand for quality in the schools seems to ask not for the development of informed and active citizens, but for disciplined and productive workers with abilities that contribute to civic life only _______, if at all.(A) indirectly(B) politically(C) intellectually(D) sensibly(E) sequentially2. Certain weeds that flourish among rice crops resist detection until maturity by ______ the seedling stage in the rice plant’s life cycle, thereby remainingindistinguishable from the rice crop until the flowering stage.(A) deterring(B) displacing(C) augmenting(D) imitating(E) nurturing3. A major goal of law, to deter potential criminals by punishing wrongdoers, is not served when the penalty is so seldom invoked that it______to be a ______threat.4. Doreen justifiably felt she deserved recognition for the fact that the research institute had been ________a position of preeminence, since it was she who had ________ the transformation.Proportionally, more persons diagnosed as having the brain disorder schizophrenia were born in the winter months than at any other time of year. A recent study suggeststhat the cause may have been the nutrient-poor diets of some expectant mothers during the coldest months of the year, when it was hardestfor people’s to get, or afford, a variety of fresh foods.5. Which of the following, if true, helps to support the conclusion presented aboveA. over the years the number of cases of schizophrenia has not shown a correlation with degree of economic distress.B. most of the development of brain areas affected in schizophrenia occurs during the last month of the mother’s pregnancy.C. suicide rates are significantly higher in winter than in any other season.D. the nutrients in fresh foods have the same effects on the development of the brain as do the nutrients in preserved foods.E. a sizable proportion of the patients involved in the study have a history of schizophrenia in the family.Questions 6 to 7 are based on the following passage.Upwards of a billion stars in our galaxy have burnt up their internal energy sources, and so can no longer produce the heat a star needs to oppose the inward force of gravity. These stars, of more than a few solar masses, evolve, in general, much more rapidly than does a star like the Sun. Moreover, it is just these more massive stars whose collapse does not halt at intermediate stages (that is, as white dwarfs or neutron stars). Instead, the collapse continues until a singularity (an infinitely dense concentration of matter) is reached. It would be wonderful to observe a singularity and obtain direct evidence of the undoubtedly bizarre phenomena that occur near one. Unfortunately in most cases a distant observer cannot see the singularity; outgoing light rays are dragged back by gravity so forcefully that even if they could start out within a few kilometersof the singularity, they would end up in the singularity itself6. the passage suggests which of the following about the Sun(A) the Sun could evolve to a stage of collapse that is less dense than a singularity.(B) in the Sun, the inward force of gravity is balanced by the generation of heat.(C) the sun emits more observable light than does a white dwarf or a neutron star.7. which of the following sentences would most probably follow the last sentence of the passage(A) thus, a physicist interested in studying phenomena near singularities would necessarily hope to find a singularity with a measureable gravitational field.(B) accordingly, physicists to date have been unable to observe directly any singularity.(C) it is specifically this startling phenomenon that has allowed us to codify the scant information currently available about singularities.(D) moreover, the existence of this extra ordinary phenomenon is implied in the extensive reports of several physicists.(E) although unanticipated, phenomena such as these are consistent with the structure of a singularity.Questions 8 to 9 are based on the following passage.The transfer of heat and water vapor from the ocean to the air above it depends on a disequilibrium at the interface of the water and the air. Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor. But the differences, however small, are crucial, and the disequilibrium is maintained by air near the surface mixing with air higher up, which is typically appreciably cooler and lower in water-vapor content. The air is mixed by means of turbulence that depends on the wind for its energy. As wind speed increases, so does turbulence, and thus the rate of heat and moisture transfer. Detailed understanding of this phenomenon awaits further study. An interacting—and complicating—phenomenon is wind-to-water transfer of momentum that occurs when waves are formed. When the wind makes waves, it transfers important amounts of energy—energy that is therefore not available to provide turbulence.8. according to the passage, wind over the ocean generally does which of the following(A) causes relatively cool, dry air to come into proximity with the ocean surface.(B) maintains a steady rate of heat and moisture transfer between the ocean and the air.(C) causes frequent changes in the temperature of the water at the ocean’s surface.9. the passage suggests that if on a certain day the wind were to decrease until there was no wind at all which of he following would occur(A) the air closest to the ocean surface would become saturated with water vapor.(B) the air closest to the ocean surface would be warmer than the water(C) the amount of moisture in the air closest to the ocean surface would decrease.(D) the rate of heat and moisture transfer would increase.(E) the air closest to the ocean would be at the same temperature as air higher up.For Questions 10 to 13, select the two answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.10. Marison was a scientist of unusual _______ and imagination who had startling succeeded in discerning new and fundamental principles well in advance of their general recognition.(A) restiveness(B) perspicacity(C) precision(D) aggression(E) candor(F) insight11. It is assumed that scientists will avoid making ______ claims aboutthe results of their experiments because of the likelihood that they will be exposed when other researchers cannot duplicate their findings.(A) hypothetical(B) fraudulent(C) verifiable(D) radical(E) deceptive(F) evaluative12. As early as the seventeenth century, philosophers called attention to the ______ character of the issue, and their twentieth-century counterparts still approach it with uneasiness.(A) absorbing(B) unusual(C) complicated(D) auspicious(E) involved(F) fanciful13. The value of Davis’ sociological research is compromised by his unscrupulous tendency to use materials selectively in order to substantiate his own claims, while ______ information that points to other possible conclusions.(A) deploying(B) disregarding(C) weighing(D) refuting(E) emphasizing(F) discountingQuestions 14 to 16 are based on the following passage.The molecules of carbon dioxide in the Earth’s atmosphere affect the heat balance of the Earth by acting as a one-way screen. Although these molecules allow radiation at visible wavelength, where most of the energy of sunlight is concentrated, to pass through, they absorb some of the longer-wavelength, infrared emissions radiated from the Earth’s surface, radiation that would otherwise be transmitted back into space. For the Earth to maintain a constant average temperature, such emissions from the planet must balance incoming solar radiation. If there were no carbon dioxide in the atmosphere, heat would escape from the Earth much more easily. The surface temperature would be so much lower that the oceans might be a solid mass of ice.Today, however, the potential problem is too much carbon dioxide. The burning of fossil fuels and the clearing of forests have increased atmospheric carbon dioxide by about 15 percent in the last hundred years, and we continue to add carbon dioxide to the atmosphere. Could the increase in carbon dioxide cause a global rise in average temperature, and could such a rise have serious consequences for human society Mathematical models that allow us to calculate the rise in temperature as a function of the increase indicate that the answer is probably yes.Under present conditions a temperature of -18 ℃ can be observed at an altitude of 5 to 6 kilometers above the Earth. Below this altitude (called the radiating level), the temperature increases by about 6 ℃ per kilometer appro aching the Earth’s surface, where the average temperature is about 15 ℃. An increase in the amount of carbon dioxide means that there are more molecules of carbon dioxide to absorb infrared radiation. As the capacity of the atmosphere to absorb infrared radiation increases, the radiating level and the temperature of the surface must rise.One mathematical model predicts that doubling the atmospheric carbon dioxide would raise the global mean surface temperature by ℃. This model assumes that the atmosphere’s relative humidity remains constant and the temperature decreases with altitude at a rate of ℃ per kilometer. The assumption of constant relative humidity is important,because water vapor in the atmosphere is another efficient absorber of radiation at infrared wavelength. Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises. Therefore, more infrared radiation would be absorbed and reradiated back to the Earth’s surfac e. The resultant warming at the surface could be expected to melt snow and ice, reducing the Earth’s reflectivity. More solar radiation would then be absorbed, leading to a further increase in temperature.14. according to the passage, the greatest part of the solar energy that reaches the Earth is(A) concentrated in the infrared spectrum(B) concentrated at visible wavelengths(C) absorbed by carbon dioxide molecules(D) absorbed by atmospheric water vapor(E) reflected back to space by snow and ice15. according to the passage, atmospheric carbon dioxide performs which of the following functions(A) absorbing radiation at visible wavelengths(B) absorbing infrared radiation(C) absorbing outgoing radiation from the Earth16. select a sentence in the third or the last paragraph which indicts the premise of the mathematical model mentioned in the passage17. When school administrators translate educational research into a standardized teaching program and mandate its use by teachers, students learn less and learn less well than they did before, even though the teachers are the same. The translation by the administrators of theory into prescribed practice must therefore be flawed.The argument above is based on which of the following assumptionsA. teachers differ in their ability to teach in accordance with standardized programs.B. the educational research on which the standardized teaching programs are based is sound.C. researchers should be the ones to translate their own research into teaching programs.D. the ways in which teachers choose to implement the programs are ineffective.E. the level of student learning will vary from state to state.18. A common defense of sport hunting is that it serves a vital wildlife-management function, without which countless animals would succumb to starvation and disease. This defense leads to the overly hasty conclusion that sport hunting produces a healthier population of animals.Which of the following, if true, best supports the author’s claim that sport hunting does not necessarily produce a healthier population of animalsA. for many economically depressed families, hunting helps keep food on the table.B. wildlife species encroach on farm crops when other food supplies become scarce.C. overpopulation of a species causes both strong and weak animals to suffer.D. sport hunters tend to pursue the biggest and healthiest animals in a population.E. many people have strong moral objections to killing a creature for any reason other than self-defense.For Questions 19 to 20, select one entry for each blank from the corresponding columnof choices. Fill all blanks in the way that best completes the text.19. (i)_________ thinkers are often accused by more (ii)___________ thinkers of building castles in the air based more on lofty ideals and (iii)___________ than on a solid foundation in reality.20. Several geographers and historians have speculated that temperate climates foster the(i)_________ of civilization, but that after a civilization has developed past the(ii)___________ stage, it is more likely to flourish in (iii)_____________ because challenges are needed that must be overcome for further progress to occur.。
GRE考试OG逻辑题目解析
1,Parland’s alligator population has been declining in recent years,primarily because of hunting. Alligators prey heavily on a species of freshwater fish that is highly valued as food by Parilanders,who had hoped that the decline in the alligator population would lead to an increase in the numbers of these fish available for human consumption. Yet the population of this fish has also declined,even though the annual number caught for human consumption has not increased. P地区的短吻鳄数量近些年下降,主要原因是捕猎。
短吻鳄捕⾷的淡⽔鱼是P居民的⾷物,P居民希望短吻鳄数量的下降可以导致这种可供⼈们消费的鱼的数量上升。
但是这种鱼的数量也下降了,尽管它每年被⼈类抓住消费的的量没有增加。
Which of following,if true,most help to explain the decline in the population of the fish species? 下列哪个选项如果是对的,最有效地解释了鱼的数量下降? A.The decline in the alligator population has meant that fishers can work in some parts of lakes and rivers that were formerly too dangerous. 短吻鳄数量的下降意味着渔民可以到以前湖⾥和江河⾥那些以前很危险的地⽅⼯作。
托福备考托福阅读34套TPO样题+解析+译文15--2 Mass Extinctions物种灭绝
托福考试 复习托福阅读TPO15(试题+答案+译文)第2篇:Mass Extinctions物种灭绝托福阅读原文【1】Cases in which many species become extinct within a geologically short interval of time are called mass extinctions. There was one such event at the end of the Cretaceous period(around 70 million years ago). There was another, even larger, mass extinction at the end of the Permian period (around 250 million years ago). The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.【2】The fossil record shows at least five mass extinctions in which many families of marine organisms died out. The rates of extinction happening today are as great as the rates during these mass extinctions. Many scientists have therefore concluded that a sixth great mass extinction is currently in progress.【3】What could cause such high rates of extinction? There are several hypotheses, including warming or cooling of Earth, changes in seasonal fluctuations or ocean currents, and changing positions of the continents. Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans. Some of the proposedmechanisms required a very brief period during which all extinctions suddenly took place; other mechanisms would be more likely to have taken place more gradually, over an extended period, or at different times on different continents. Some hypotheses fail to account for simultaneous extinctions on land and in the seas. Each mass extinction may have had a different cause.Evidence points to hunting by humans and habitat destruction as the likely causes for the current mass extinction.【4】American paleontologists David Raup and John Sepkoski, who have studied extinction rates in a number of fossil groups, suggest that episodes of increased extinction have recurred periodically, approximately every 26 million years since the mid-Cretaceous period. The late Cretaceous extinction of the dinosaurs and ammonoids was just one of the more drastic in a whole series of such recurrent extinction episodes. The possibility that mass extinctions may recur periodically has given rise to such hypotheses as that of a companion star with along-period orbit deflecting other bodies from their normal orbits, making some of them fall to Earth as meteors and causing widespread devastation upon impact.【5】Of the various hypotheses attempting to account for the late Cretaceous extinctions, the one that has attracted the most attention in recent years is the asteroid-impact hypothesis first suggested by Luis andWalter Alvarez. According to this hypothesis, Earth collided with an asteroid with an estimated diameter of 10kilometers, or with several asteroids, the combined mass of which was comparable. The force of collision spewed large amounts of debris into the atmosphere, darkening the skies for several years before the finer particles settled. The reduced level of photosynthesis led to a massive decline in plant life of all kinds, and this caused massive starvation first of herbivores and subsequently of carnivores. The mass extinction would have occurred very suddenly under this hypothesis.【6】One interesting test of the Alvarez hypothesis is based on the presence of the rare-earth element iridium (Ir).Earth’s crust contains very little of this element, but most asteroids contain a lot more. Debris thrown into the atmosphere by an asteroid collision would presumably contain large amounts of iridium, and atmospheric currents would carry this material all over the globe. A search of sedimentary deposits that span the boundary between the Cretaceous and Tertiary periods shows that there is a dramatic increase in the abundance of iridium briefly and precisely at this boundary. This iridiumanomaly offers strong support for the Alvarez hypothesis even though no asteroid itself has ever been recovered.【7】An asteroid of this size would be expected to leave an immense crater, even if the asteroid itself was disintegrated by the impact. The intenseheat of the impact would produce heat-shocked quartz in many types of rock. Also, large blocks thrown aside by the impact would form secondary craters surrounding the main crater.To date, several such secondary craters have been found along Mexico’s Yucatan Peninsula, and heat-shocked quartz has been found both in Mexico and in Haiti.A location called Chicxulub, along the Yucatan coast, has been suggested as the primary impact site.托福阅读试题1.Paragraph 1 supports which of the following statements about mass extinctions?A.They take place over a period of 70 million years.B.They began during the Cretaceous period.C.They eliminate many animal species that exist at the time they occur.D.They occur every 250 million years.2.According to paragraph 2, scientists base their belief that a mass extinction is going on at present on which of the following?A.The speed with which mass extinctions are happening today is similar to the speed of past extinctions.B.The number of species that have died out since the last extinction event is extremely large.C.Mass extinctions occur with regularity and it is time for another one.D.Fossil records of many marine species have disappeared.3.The word extended in the passage is closest in meaning toA.specific.B. unlimited.C.reasonable.D. long.4.According to paragraph 3, each of the following has been proposed asa possible cause of mass extinctions EXCEPTA.habitat destruction.B.continental movement.C.fierce interspecies competition.D.changes in Earth's temperature.5.Paragraph 3 supports which of the following ideas about mass extinctions?A.Scientists know the exact causes of most mass extinctions.B.Mass extinctions are unlikely to happen again in the future.C.Insects, flowering plants, and bottom-feeding predators in the oceans tend to be the first organisms to disappear during episodes of mass extinctions.D.Some mass extinctions occurred on land and in the seas at the same time.6.Which of the sentences below best expresses the essential information in the underlined sentence (Paragraph 4)in the passage? Incorrect choices change the meaning in important ways or leave out essential information.A.Based on their studies of extinction rates of numerous fossil groups, paleontologists David Raup and John Sepkoski have determined that mass extinctions occur about every 26 million years.B.David Raup and John Sepkoski studied extinction rates of numerous fossil groups and suggest that mass extinctions during the Cretaceous period continued for 26 million years.C.Studies that paleontologists David Raup and John Sepkoski conducted of various fossil groups have revealed that extinction rates have increased over the past 26 million years.D.The studies conducted by paleontologists David Raup and John Sepkoski of the fossil remains of species suggest that the extinction rate of species started to increase by the middle of the Cretaceous period. 7.According to paragraph 4, what aspect of extinction episodes does the companion-star hypothesis supposedly clarify?A.Their location.B.Their frequency.C.Their duration.D.Their severity.8.The phrase account for in the passage(Paragraph 5)is closest in meaning toA.describe.B.challenge.C.explain.D.test.9.According to paragraph 6, what made iridium a useful test of the Alvarez hypothesis?A.Its occurrence in a few locations on Earth against several locations on other planets.B.Its occurrence in limited quantities on Earth against its abundance in asteroids.C.Its ability to remain solid at extremely high temperatures.D.Its ease of detection even in very small amounts.10.In stating that no asteroid itself has ever been recovered, the author emphasizes which of the following?A.The importance of the indirect evidence for a large asteroid.B.The fact that no evidence supports the asteroid impact hypothesis.C.The reason many researchers reject the Alvarez hypothesis.D.The responsibility of scientists for not making the effort to discover the asteroid itself.11.The word intense(Paragraph 7)in the passage is closest in meaningtoA.sudden.B.unusual.C.immediate.D. extreme.12.What is the purpose of paragraph 7 in the passage?A.It proposes a decisive new test of the Alvarez hypothesis.B.It presents additional supporting evidence for the Alvarez hypothesis.C.It explains why evidence relating to the Alvarez hypothesis is hard to find.D.It shows how recent evidence has raised doubts about the Alvarez hypothesis.13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? In general, it is believed that these two extinctions resulted from drastic environmental changes that followed meteorite impacts or massive volcanic eruptions.■Cases in which many species become extinct within a geologically short interval of time are called mass extinctions. ■There was one such event at the end of the Cretaceous period (around 70 million years ago). ■There was another, even larger, mass extinction at the end of the Permian period (around 250 million years ago). ■The Permian event has attracted muchless attention than other mass extinctions because mostly unfamiliar species perished at that time.14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.There have been many attempts to explain the causes of mass extinctions.A.Asteroid impacts, evolutionary developments, and changes in Earth's climate and in the positions of the continents have all been proposed as possible causes of mass extinctions.B.Researchers have observed 26-million-year cycles in extinction rates of a number of fossil groups that could all be attributed to the same cause.C.According to the Alvarez hypothesis, much of the iridium originally present on Earth was thrown into the atmosphere as a result of an asteroid impact that also caused a mass extinction.D.The unusual distribution of iridium on Earth and the presence of craters and heat-shocked quartz are central to the theory that an asteroid impact caused the late Cretaceous event.E.The collision between Earth and a large asteroid resulted in massive damage and generated enough heat to cause irreversible changes inEarth's atmosphere.F.There was a particularly large mass extinction that occurred around 250 million years ago at the end of the Permian period, whose cause could not be determined.托福阅读答案1.以mass extinctions做关键词定位至第一句,说大量生物在短时间内灭绝的这种现象叫做大灭绝事件,C是原文的同义替换,所以是正确答案。
外国史学史讲义之五普鲁塔克
外国史学史讲义之五普鲁塔克与《希腊罗马名人传》普鲁塔克(Plutarch)是罗马帝国初期的希腊人。
一般称他为传记作家和哲学家,很少有人将他视为真正的历史家,尽管他的《名人传》古今都公认为是研究希腊罗马史的重要史料之一。
他是一位多产作家,著作据说不下227种。
但最主要的成名之作有两部。
一部是以对话和论说形式为主的《道德集》(Moralia),一部就是《希腊罗马名人传》(Parallel Lives)。
前者集中反映他的伦理道德思想,后者集中反映他的史学思想,特别是英雄史观。
但后者实际上也是通过对人物功过是非的描写来体现他的道德思想。
寓道德教育于人物的臧否褒贬之中是普鲁塔克《名人传》的特点。
《名人传》虽然就史学价值而言,无法与罗马历史家塔西佗的《历史》、《编年史》,李维的《罗马史》,波利比乌斯的《通史》相提并论,但他的传记体例却是前所未有,成为后世模仿的典范。
它所提供的各种裨史传闻以及已经失佚的古典作品大大扩大了人们研究希腊罗马历史的视野。
可以毫不夸张地说,至今人们对那些历史名人的印象,对古代社会的感性认识,在很大程度上就来自于普鲁塔克的《名人传》。
一、作者生平与《名人传》的写作动机普鲁塔克的生卒年代不详,大约在公元46-127年之间。
他是希腊中部喀罗尼亚城人,家庭富有殷实,颇有文化气息。
父亲亚里士托布鲁斯(Aristobulus)是一位传记作家和哲学家。
后来,他游学雅典,曾拜亚里士多德学派哲学家阿摩尼乌斯(Ammonius)为师,学习数学、哲学、修辞学和医药学。
不过他的真正兴趣在历史和道德伦理学。
这可以他后来的著作集中于这两方面为证。
普鲁塔克与希罗多德一样,喜欢四处游历,广泛搜求奇闻轶事、文献资料、口碑传说。
他访问过埃及、小亚、意大利,还在罗马城住过相当长的一段时间,传授哲学。
据说罗马皇帝图拉真(98-117AD)、哈德良(117-138AD)都聆听过他的讲课,他因此受到赞赏重用。
图拉真授予其荣誉执政官的头衔,哈德良任命他为希腊的总督。
11月11日雅思阅读预测文档
转载请注明来自小站教研中心2017年11月雅思阅读预测文档适用于11月11日A类考试✧本预测文档根据雅思阅读出题规律,从题库中精选50篇(已命中9篇)最具代表性文章,内容包括文章大意、参考答案或推荐阅读,同学们可据此进行类似文章练习。
✧完整真题将会在【雅思阅读预测班】放送,并有名师详细解答。
✧预测班真题请参看附录(已命中9篇)10命中,已删除)农业20050108 200411202004082111 Consumer advertisement商业管理20160305 2014100222 indoor air pollution indeveloping countries(3.25命中,已删除)环保20160915 2013121423 Tick Tock Body clock生物20161013 201210132007030334 Dust and American环保20150801 20130718200802142011102646 Seeing the colour ofsounds, hearing thecolour of number(6.8命中,已删除)心理学20140111 2011051957Odd and curious money人文社科20161103 20130427B 20080831 2006042220050903 20050709 20041120 20040529Physical and mental effectsSome types of music can relax us. After a stressful work day, classical music, certain types of jazz, or our favorite ballad singer can physically relax our bodies and distract our minds from the cares of the day - at least for a while. On the other hand, loud, fast music with a strong beat can exhilarate (or bother) us. In fact,of this ancient power has recently come to light, which is one of the purposes of this site.Used in certain ways, one of the principal powers of music can be to induce altered states of consciousness (ASC's). These can be anything from a very relaxed state, to a much deeper state, where non-ordinary realities can be experienced. There"location" where our fears and phobias exist, which in some extreme cases forces us to become out of control, when we become neurotically or pathologically ruled by our fears.The problem with this explanation is meaning. One result of listening to music played in these Mesopotamian tunings is that the experiences people havecommercially available) while the music was playing, showing progressive changes leading to the photograph on the right. The photographs indicate the emotional state of the a subject.The photo on the left was taken at the beginning of the session; the person was feeling the stresses of everyday life - traffic, family, job. The mottled colors indicateregions' size helps getting benefits of mass production.History of Trade:Trade originated in prehistoric times. It was the main facility of prehistoric people, who bartered goods and services from each other when modern money was neverIn 1776, Adam Smith published the paper "An Inquiry into the Nature and Causes of the Wealth of Nations". This paper criticized Mercantilism, and argued that economic specialization could benefit nations just as much as firms. Since that time the division of labor was restricted by the size of the market, he said that countries having access to larger markets would be able to divide labor morenew Russian people.Empress Anna, (1730 –1740) was devoted to ostentatious amusements (balls, fireworks, tableaux), and in the summer of 1734 ordered the appointment of Jean-Baptiste Landé as dancing-master in the military academy she had founded in 1731 for sons of the nobility. In 1738, he became ballet master and head of the部分参考答案:小标题14. vi (一个受益的村庄)15. vii (company’s profit)16. 选含 limitation 的那项hiring stars. C判断:32 McKinsey who wrote The War for Talent had not expected the huge influencemade by this book. NG转载请注明来自小站教研中心research shows that online social media use, rather than making us as users feel inter-connected, contributes to overall life dis-satisfaction and loneliness.This side-effect can have drastic results, considering over 1.1 billion users around the world are linked up on Facebook alone.The study monitored 82 participants’ feelings and well-being, compared to their题型选择4+判断6+填空4文章大意天赋是遗传先天的还是靠练习,主要以音乐为例。
2022年考研考博-考博英语-中国财政科学研究院考试预测题精选专练VII(附带答案)卷9
2022年考研考博-考博英语-中国财政科学研究院考试预测题精选专练VII(附带答案)第1套一.综合题(共25题)1.单选题______ that as both birds and mammals become larger, their metabolic rates per unit of tissue decrease, and they generally live longer.问题1选项A.The truthB.It is trueC.If trueD.To be true【答案】B【解析】考查固定句型。
句意:的确,随着鸟类和哺乳动物的体型变大,它们每单位组织的代谢率会下降,它们通常会活得更长。
It is/was+adj.+that是强调句型,It作形式主语,真正主语是that 后面的内容,B选项It is true符合题意。
因此B选项正确。
2.单选题While the company’s CEO professes to be confident and urges the deal forward, its investors are unlikely to be so _______ about its prospects. Many were uncomfortable at the way the corporation was forced to spend much of its capital in last year’s expansion, and this new venture is potentially even more risky.问题1选项A.apatheticB.sanguineC.apprehensiveD.anxious【答案】B【解析】考查形容词辨析。
A选项apathetic“无动于衷的;缺乏兴趣的”;B选项sanguine“乐观的,充满希望的”;C选项apprehensive“忧虑的”;D选项anxious“担忧的;急切的”。
7.27削弱题型及例题分析(雷哥GMAT)
削弱题型及例题分析|雷哥GMAT【削弱题】削弱题,又称weaken题目。
通常需要反驳文中的观点,或弱化结论成立的可能性。
标志性词语:weaken、undermine、cast doubt on、weakness、threaten、call into question解题思路:提出其他可能性或破坏逻辑关系,使文章结论无法成立。
解题技巧:1)weaken题原文中必须出现结论,因此判断出结论最重要2)关注结论,几乎所有正确选项都对结论产生影响3)原文信息当中的推理错误要仔细读4)Weaken题经常需要用到预测选项特征5)正确选项中经常出现原文没有的新信息6)weaken题目正确选项从来不会攻击premise(即前提都是默认为真的)(除非该前提是一个sub-conclusion),因此寻找正确答案时,一定要找那个能攻击到推理链的,不要找直接攻击前提的。
错误答案特征雷哥GMAT解析:1.Weaken变support2.对结论作改写,使得与原文结论有细微差别3.无关选项例题:OG16-P503-4Editorial:The roof of Northtown’s municipal equipment-storage building collapsed under the weight of last week’s heavy snowfall.The building was constructed recently and met local building-saf ety codes in every particular,except that the nails used for attaching roof supports to the building’s columns were of a smaller size than the codes specify for this purpose.Clearly,this collapse exemplifies how even a single,apparently insignificant departure from safety standards can have severe consequences.Which of the following,if true,most seriously weakens the editorial’s argument?(A)The only other buildings to suffer roof collapses from the weight of the snowfa ll were older buildings constructed according to less exacting standards than thos e in the codes.(B)The amount of snow that accumulated on the roof of the equipment storage b uilding was greater than the predicted maximum that was used in drawing up the safety codes.(C)Because the equipment-storage building was not intended for human occupati on,some safety-code provisions that would have applied to an office building did not apply to it.(D)The municipality of Northtown itself has the responsibility for ensuring that bu ildings constructed within its boundaries meet the provisions of the building-safet y codes.(E)Because the equipment-storage building was used for storing snow removal eq uipment,the building was almost completely empty when the roof collapsed.雷哥GMAT解析:主编:N建筑的房顶因为上一周大雪坍塌了。
Aspects of Gravitational Clustering
ASPECTS OF GRAVITATIONAL CLUSTERING
3
ˆk is a linear second order differmode, labeled by a wave vector k. Here L ential operator in time. Solving this set of ordinary differential equations, with given initial conditions, we can determine the evolution of each mode separately. [Similar procedure, of course, works for the case with Ω = 1. In this case, the mode functions will be more complicated than the plane waves; but, with a suitable choice of orthonormal functions, we can obtain a similar set of equations]. This solves the problem of linear gravitational clustering completely. There is, however, one major conceptual difficulty in interpreting the results of this program. In general relativity, the form (and numerical value) of the metric coefficients gαβ (or the stress-tensor components Tαβ ) can be changed by a relabeling of coordinates xα → xα′ . By such a trivial change we can make a small δTαβ large or even generate a component which was originally absent. Thus the perturbations may grow at different rates − or even decay − when we relabel coordinates. It is necessary to tackle this ambiguity before we can meaningfully talk about the growth of inhomogeneities. There are two different approaches to handling such difficulties in general relativity. The first method is to resolve the problem by force: We may choose a particular coordinate system and compute everything in that coordinate system. If the coordinate system is physically well motivated, then the quantities computed in that system can be interpreted easily; 0 to be the perturbed mass (energy) density for example, we will treat δT0 even though it is coordinate dependent. The difficulty with this method is that one cannot fix the gauge completely by simple physical arguments; the residual gauge ambiguities do create some problems. The second approach is to construct quantities − linear combinations of various perturbed physical variables − which are scalars under coordinate transformations. [see eg. the contribution by Brandenberger to this volume and references cited therein] Einstein’s equations are then rewritten as equations for these gauge invariant quantities. This approach, of course, is manifestly gauge invariant from start to finish. However, it is more complicated than the first one; besides, the gauge invariant objects do not, in general, possess any simple physical interpretation. In these lectures, we shall be mainly concerned with the first approach. Since the gauge ambiguity is a purely general relativistic effect, it is necessary to determine when such effects are significant. The effects due to the curvature of space-time will be important at length scales bigger than (or comparable to) the Hubble radius, defined as dH (t) ≡ (a/a ˙ )−1 . Writing
THE COMPARISON OF ROMULUS WITH THESEUS
75 ADTHE COMPARISON OF ROMULUS WITH THESEUSby Plutarchtranslated by John DrydenThis is what I have learned of Romulus and Theseus, worthy of memory. It seems, first of all, that Theseus, out of his ownfree-will, without any compulsion, when he might have reigned in security at Troezen in the enjoyment of no inglorious empire, of his own motion affected great actions, whereas the other, to escape present servitude and a punishment that threatened him (according to Plato's phrase), grew valiant purely out of fear, and dreading the extremest inflictions, attempted great enterprises out of mere necessity. Again, his greatest action was only the killing of one King of Alba; while, as mere by-adventures and preludes, the other can name Sciron, Sinnis, Procrustes, and Corynetes; by reducing and killingof whom, he rid Greece of terrible oppressors, before any of them that were relieved knew who did it; moreover, he might without anytrouble as well have gone to Athens by sea, considering he himself never was in the least injured by those robbers; whereas Romulus could not but be in trouble whilst Amulius lived. Add to this, the fact that Theseus, for no wrong done to himself, but for the sake of others,fell upon these villains; but Romulus and Remus, as long as they themselves suffered no ill by the tyrant, permitted him to oppress all others. And if it be a great thing to have been wounded in battle by the Sabines, to have killed King Acron, and to have conquered many enemies, we may oppose to these actions the battle with the Centaurs and the feats done against the Amazons. But what Theseus adventured, in offering himself voluntarily with young boys and virgins, as part of the tribute unto Crete, either to be a prey to a monster or avictim upon the tomb of Androgeus, or, according to the mildest form of the story, to live vilely and dishonourably in slavery to insulting and cruel men; it is not to be expressed what an act of courage, magnanimity, or justice to the public, or of love for honour and bravery, that was. So what methinks the philosophers did not ill define love to be the provision of the gods for the care and preservation of the young; for the love of Ariadne, above all, seems to have been the proper work and design of some god in order to preserve Theseus; and, indeed, we ought not to blame her for loving him, but rather wonder all men and women were not alike affectedtowards him; and if she alone were so, truly I dare pronounce her worthy of the love of a god, who was herself so great a lover ofvirtue and goodness, and the bravest man.Both Theseus and Romulus were by nature meant for governors; yet neither lived up to the true character of a king, but fell off, and ran, the one into popularity, the other into tyranny, falling bothinto the same fault out of different passions. For a ruler's first aim is to maintain his office, which is done no less by avoiding what is unfit than by observing what is suitable. Whoever is either too remiss or too strict is no more a king or a governor, but either a demagogue or a despot, and so becomes either odious or contemptible to his subjects. Though certainly the one seems to be the fault of easiness and good-nature, the other of pride and severity.If men's calamities, again, are not to be wholly imputed to fortune, but refer themselves to differences of character, who will acquit either Theseus of rash and unreasonable anger against his son, or Romulus against his brother? Looking at motives, we more easily excuse the anger which a stronger cause, like a severer blow, provoked. Romulus, having disagreed with his brother advisedly anddeliberately on public matters, one would think could not on asudden have been put into so great a passion; but love and jealousy and the complaints of his wife, which few men can avoid being moved by, seduced Theseus to commit that outrage upon his son. And what is more, Romulus, in his anger, committed an action of unfortunate consequence; but that of Theseus ended only in words, some evil speaking, and an old man's curse; the rest of the youth's disasters seem to have proceeded from fortune; so that, so far, a man would give his vote on Theseus's part.But Romulus has, first of all, one great plea, that his performances proceeded from very small beginnings; for both the brothers being thought servants and the sons of swine-herds, before becomingfreemen themselves, gave liberty to almost all the Latins, obtaining at once all the most honourable titles, as destroyers of theircountry's enemies, preservers of their friends and kindred, princes of the people, founders of cities, not removers, like Theseus, who raised and compiled only one house out of many, demolishing many cities bearing the names of ancient kings and heroes. Romulus, indeed, did the same afterwards, forcing his enemies to deface and ruin theirown dwellings, and to sojourn with their conquerors; but at first, not by removal, or increase of an existing city, but by foundation of a new one, he obtained himself lands, a country, a kingdom, wives, children, and relations. And, in so doing, he killed or destroyed nobody, but benefited those that wanted houses and homes and were willing to be of a society and become citizens. Robbers andmalefactors he slew not; but he subdued nations, he overthrewcities, he triumphed over kings and commanders. As to Remus, it is doubtful by whose hand he fell; it is generally imputed to others. His mother he clearly retrieved from death, and placed his grandfather, who was brought under base and dishonourable vassalage, on the ancient throne of Aeneas, to whom he did voluntarily many good offices, but never did him harm even inadvertently. But Theseus, in his forgetfulness and neglect of the command concerning the flag, can scarcely, methinks, by any excuses, or before the most indulgent judges, avoid the imputation of parricide. And, indeed, one of the Attic writers, perceiving it to be very hard to make an excuse for this, feigns that Aegeus, at the approach of the ship, running hastily to the Acropolis to see what news, slipped and fell down, as if he had no servants, or none would attend him on his way to the shore.And, indeed, the faults committed in the rapes of women admit ofno plausible excuse in Theseus. First, because of the often repetition of the crime; for he stole Ariadne, Antiope, Anaxo the Troezenian,at last Helen, when he was an old man, and she not marriageable; she a child, and he at an age past even lawful wedlock. Then, on accountof the cause; for the Troezenian, Lacedaemonian, and Amazonian virgins, beside that they were not betrothed to him, were not worthier to raise children by then the Athenian women, derived fromErechtheus and Cecrops; but it is to be suspected these things were done out of wantonness and lust. Romulus, when he had taken near eight hundred women, chose not all, but only Hersilia, as they say, for himself; the rest he divided among the chief of the city; and afterwards, by the respect and tenderness and justice shown towards them, he made it clear that this violence and injury was a commendable and politic exploit to establish a society; by which he intermixed and united both nations, and made it the foundation of after friendship and public stability. And to the reverence and love and constancy he established in matrimony, time can witness, for in two hundred and thirty years, neither any husband deserted his wife, nor any wifeher husband; but, as the curious among the Greeks can name the first case of parricide or matricide, so the Romans all well know that Spurius Carvilius was the first who put away his wife, accusing her of barrenness. The immediate results were similar; for upon those marriages the two princes shared in the dominion, and both nationsfell under the same government. But from the marriages of Theseus proceeded nothing of friendship or correspondence for the advantage of commerce, but enmities and wars and the slaughter of citizens, and, at last, the loss of the city Aphidnae, when only out of the compassion of the enemy, whom they entreated and caressed like gods, they escaped suffering what Troy did by Paris. Theseus's mother, however, was notonly in danger, but suffered actually what Hecuba did, deserted and neglected by her son, unless her captivity be not a fiction, as I could wish both that and other things were. The circumstances of the divine intervention, said to have preceded or accompanied their births, are also in contrast; for Romulus was preserved by the special favour of the gods; but the oracle given to Aegeus commanding him to abstain, seems to demonstrate that the birth of Theseus was not agreeable to the will of the gods.THE END。
Discrete Applied Mathematics
Discrete Applied Mathematics157(2009)2217–2220Contents lists available at ScienceDirectDiscrete Applied Mathematicsjournal homepage:/locate/damPreface$This special issue on Networks in Computational Biology is based on a workshop at Middle East Technical University in Ankara,Turkey,September10–12,2006(.tr/Networks_in_Computational_Biology/). Computational biology is one of the many currently emerging areas of applied mathematics and science.During the last century,cooperation between biology and chemistry,physics,mathematics,and other sciences increased dramatically,thus providing a solid foundation for,and initiating an enormous momentum in,many areas of the life sciences.This special issue focuses on networks,a topic that is equally important in biology and mathematics,and presents snapshots of current theoretical and methodological work in network analysis.Both discrete and continuous optimization,dynamical systems, graph theory,pertinent inverse problems,and data mining procedures are addressed.The principal goal of this special issue is to contribute to the mathematical foundation of computational biology by stressing its particular aspects relating to network theory.This special issue consists of25articles,written by65authors and rigorously reviewed by70referees.The guest editors express their cordial thanks to all of them,as well as to the Editors-in-Chief of Discrete Applied Mathematics,Prof.Dr.Endre Boros and his predecessor,Prof.Dr.Peter L.Hammer,who was one of the initiators of this special issue but left us in2006, and to Mrs.Katie D’Agosta who was at our side in each phase of preparation of this DAM special issue.The articles are ordered according to their contents.Let us briefly summarize them:In the paper of Jacek Błażewicz,Dorota Formanowicz,Piotr Formanowicz,Andrea Sackmann,and MichałSajkowski, entitled Modeling the process of human body iron homeostasis using a variant of timed Petri nets,the standard model of body iron homeostasis is enriched by including the durations of the pertinent biochemical reactions.A Petri-net variant in which, at each node,a time interval is specified is used in order to describe the time lag of the commencement of conditions that must be fulfilled before a biochemical reaction can start.Due to critical changes in the environment,switches can occur in metabolic networks that lead to systems exhibiting simultaneously discrete and continuous dynamics.Hybrid systems represent this accurately.The paper Modeling and simulation of metabolic networks for estimation of biomass-accumulation parameters by Uˇg ur Kaplan,Metin Türkay,Bülent Karasözen,and Lorenz Biegler develops a hybrid system to simulate cell-metabolism dynamics that includes the effects of extra-cellular stresses on metabolic responses.Path-finding approaches to metabolic-pathway analysis adopt a graph-theoretical approach to determine the reactions that an organism might use to transform a source compound into a target compound.In the contribution Path-finding approaches and metabolic pathways,Francisco J.Planes and John E.Beasley examine the effectiveness of using compound-node connectivities in a path-finding approach.An approach to path finding based on integer programming is also presented. Existing literature is reviewed.This paper is well illustrated and provides many examples as well as,as an extra service,some supplementary information.In A new constraint-based description of the steady-state flux cone of metabolic networks,Abdelhalim Larhlimi and Alexander Bockmayr present a new constraint-based approach to metabolic-pathway analysis.Based on sets of non-negativity constraints,it uses a description of the set of all possible flux distributions over a metabolic network at a steady state in terms of the steady-state flux cone.The constraints can be identified with irreversible reactions and,thus,allow a direct interpretation.The resulting description of the flux cone is minimal and unique.Furthermore,it satisfies a simplicity condition similar to the one for elementary flux modes.Most biological networks share some properties like being,e.g.,‘‘scale free’’.Etienne Birmeléproposes a new random-graph model in his contribution A scale-free graph model based on bipartite graphs that can be interpreted in terms of metabolic networks,and exhibits this specific feature.$Dedicated to our dear teacher and friend Prof.Dr.Peter Ladislaw Hammer(1936–2006).0166-218X/$–see front matter©2009Elsevier B.V.All rights reserved.doi:10.1016/j.dam.2009.01.0212218Preface/Discrete Applied Mathematics157(2009)2217–2220Differential equations have been established to quantitatively model the dynamic behaviour of regulatory networks representing interactions between cell components.In the paper Inference of an oscillating model for the yeast cell cycle, Nicole Radde and Lars Kaderali study differential equations within a Bayesian setting.First,an oscillating core network is learned that is to be extended,in a second step,using‘‘Bayesian’’methodology.A specifically designed hierarchical prior distribution over interaction strengths prevents overfitting and drives the solutions to sparse networks.An application to a real-world data set is provided,and its dynamical behaviour is reconstructed.The contribution An introduction to the perplex number system by Jerry L.R.Chandler derives from his approach to theoretical chemistry,and provides a universal source of diagrams.The perplex number system,a new logic for describing relationships between concrete objects and processes,provides in particular an exact notation for chemistry without invoking either chemical or‘‘alchemical’’symbols.Practical applications to concrete compounds(e.g.,isomers of ethanol and dimethyl ether)are given.In conjunction with the real number system,the relations between perplex numbers and scientific theories of concrete systems(e.g.,intermolecular dynamics,molecular biology,and individual medicine)are described.Since exact determination of haplotype blocks is usually impossible,a method is desired which can account for recombinations,especially,via phylogenetic networks or a simplified version.In their work Haplotype inferring via galled-tree networks using a hypergraph-covering problem for special genotype matrices,Arvind Gupta,Ján Maňuch,Ladislav Stacho, and Xiaohong Zhao reduce the problem via galled-tree networks to a hypergraph-covering problem for genotype matrices satisfying a certain combinatorial condition.Experiments on real data show that this condition is mostly satisfied when the minor alleles(per SNP)reach at least30%.Recently the Quartet-Net or,for short,‘‘QNet’’method was introduced by Stefan Grünewald et al.as a method for computing phylogenetic split networks from a collection of weighted quartet trees.Here,Stefan Grünewald,Vincent Moulton,and Andreas Spillner show that QNet is a‘‘consistent’’method.This key property of QNet does not only guarantee to produce a tree if the input corresponds to a tree—and an outer-labeled planar split network if the input corresponds to such a network;the proof given in their contribution Consistency of the QNet algorithm for generating planar split networks from weighted quartets also provides the main guiding principle for the design of the method.Kangal and Akbash dogs are the two well-known shepherd dog breeds in Turkey.In the article The genetic relationship between Kangal,Akbash,and other dog populations,Evren Koban,Çigdem Gökçek Saraç,Sinan Can Açan,Peter Savolainen, andİnci Togan present a comparative examination by mitochondrial DNA control region,using a consensus neighbour-joining tree with bootstrapping which is constructed from pairwise FST values between populations.This study indicates that Kangal and Akbash dogs belong to different branches of the tree,i.e.,they might have descended maternally from rather different origins created by an early branching event in the history of the domestic dogs of Eurasia.In their paper The Asian contribution to the Turkish population with respect to the Balkans:Y-chromosome perspective,Ceren Caner Berkman and inci Togan investigate historical migrations from Asia using computational approaches.The admixture method of Chikhi et al.was used to estimate the male genetic contribution of Central Asia to hybrids.The authors observed that the male contribution from Central Asia to the Turkish population with reference to the Balkans was13%.Comparison of the admixture estimate for Turkey with those of neighboring populations indicated that the Central Asian contribution was lowest in Turkey.Split-decomposition theory deals with relations between real-valued split systems and metrics.In his work Split decomposition over an Abelian group Part2:Group-valued split systems with weakly compatible support,Andreas Dress uses a general conceptual framework to study these relations from an essentially algebraic point of view.He establishes the principal results of split-decomposition theory regarding split systems with weakly compatible support within this new algebraic framework.This study contributes to computational biology by analyzing the conceptual mathematical foundations of a tool widely used in phylogenetic analysis and studies of bio-diversity.The contribution Phylogenetic graph models beyond trees of Ulrik Brandes and Sabine Cornelsen deals with methods for phylogenetic analysis,i.e.,the study of kinship relationships between species.The authors demonstrate that the phylogenetic tree model can be generalized to a cactus(i.e.,a tree all of whose2-connected components are cycles)without losing computational efficiency.A cactus can represent a quadratic rather than a linear number of splits in linear space.They show how to decide in linear time whether a set of splits can be accommodated by a cactus model and,in that case,how to construct it within the same time bounds.Finally,the authors briefly discuss further generalizations of tree models.In their paper Whole-genome prokaryotic clustering based on gene lengths,Alexander Bolshoy and Zeev Volkovich present a novel method of taxonomic analysis constructed on the basis of gene content and lengths of orthologous genes of 66completely sequenced genomes of unicellular organisms.They cluster given input data using an application of the information-bottleneck method for unsupervised clustering.This approach is not a regular distance-based method and, thus,differs from other recently published whole-genome-based clustering techniques.The results correlate well with the standard‘‘tree of life’’.For characterization of prokaryotic genomes we used clustering methods based on mean DNA curvature distributions in coding and noncoding regions.In their article Prokaryote clustering based on DNA curvature distributions,due to the extensive amount of data Limor Kozobay-Avraham,Sergey Hosida,Zeev Volkovich,and Alexander Bolshoy were able to define the external and internal factors influencing the curvature distribution in promoter and terminator regions.Prokaryotes grow in the wide temperature range from4◦C to100◦C.Each type of bacteria has an optimal temperature for growth.They found very strong correlation between arrangements of prokaryotes according to the growth temperature and clustering based on curvature excess in promoter and terminator regions.They found also that the main internal factors influencingPreface/Discrete Applied Mathematics157(2009)2217–22202219 the curvature excess are genome size and A+T composition.Two clustering methods,K-means and PAM,were applied and produced very similar clusterings that reflect the aforementioned genomic attributes and environmental conditions of the species’habitat.The paper Pattern analysis for the prediction of fungal pro-peptide cleavage sites by SüreyyaÖzöˇgür Ayzüz,John Shawe-Taylor,Gerhard-Wilhelm Weber,and Zümrüt B.Ögel applies support-vector machines to predict the pro-peptide cleavage site of fungal extra-cellular proteins displaying mostly a monobasic or dibasic processing site.A specific kernel is expressed as an application of the Gaussian kernel via feature spaces.The novel approach simultaneously performs model selection, tests the accuracy,and computes confidence levels.The results are found to be accurate and compared with the ones provided by a server.Preetam Ghosh,Samik Ghosh,Kalyan Basu,and Sajal Das adopt an‘‘in silico’’stochastic-event-based simulation methodology to determine the temporal dynamics of different molecules.In their paper Parametric modeling of protein–DNA binding kinetics:A discrete event-based simulation approach,they present a parametric model for predicting the execution time of protein–DNA binding.It considers the actual binding mechanism along with some approximated protein-and DNA-structural information using a collision-theory-based approach incorporating important biological parameters and functions into the consideration.Murat Ali Bayır,Tacettin Doˇg acan Güney,and Tolga Can propose a novel technique in their paper Integration of topological measures for eliminating non-specific interactions in protein interaction networks for removing non-specific interactions in a large-scale protein–protein interaction network.After transforming the interaction network into a line graph,they compute betweenness and other clustering coefficients for all the edges in the network.The authors use confidence estimates and validate their method by comparing the results of a test case relating to the detection of a molecular complex with reality.The article Graph spectra as a systematic tool in computational biology by Anirban Banarjee and Jürgen Jost deals with the obviously important question of how biological content can be extracted from the graphs to which biological data are often reduced.From the spectrum of the graph’s Laplacian that yields an essentially complete qualitative characterization of a graph,a spectral density plot is derived that can easily be represented graphically and,therefore,analyzed visually and compared for different classes of networks.The authors apply this method to the study of protein–protein interaction and other biological and infrastructural networks.It is detected that specific such classes of networks exhibit common features in their spectral plots that readily distinguish them from other classes.This represents a valuable complement to the currently fashionable search for universal properties that hold across networks emanating from many different contexts.Konstantin Klemm and Peter F.Stadler’s Note on fundamental,nonfundamental,and robust cycle bases investigates the mutual relationships between various classes of cycle bases in a network that have been studied in the literature.The authors show for instance that strictly fundamental bases are not necessarily cyclically robust;and that,conversely, cyclically robust bases are not necessarily fundamental.The contribution focuses on cyclically robust cycle bases whose existence for arbitrary graphs remains open despite their practical use for generating all cycles of a given2-connected graph. It presents also a class of cubic graphs for which cyclically robust bases can be constructed explicitly.Understanding the interplay and function of a system’s components also requires the study of the system’s functional response to controlled experimental perturbations.For biological systems,it is problematic with an experimental design to aim at a complete identification of the system’s mechanisms.In his contribution A refinement of the common-cause principle,Nihat Ay employs graph theory and studies the interplay between stochastic dependence and causal relations within Bayesian networks and information theory.Applying a causal information-flow measure,he provides a quantitative refinement of Reichenbach’s common-cause principle.Based on observing an appropriate collection of nodes of the network, this refinement allows one to infer a hitherto unknown lower bound for information flows within the network.In their article Discovering cis-regulatory modules by optimizing barbecues,Axel Mosig,Türker Bıyıkoˇg lu,Sonja J.Prohaska, and Peter F.Stadler ask for simultaneously stabbing a maximum number of differently coloured intervals from K arrangements of coloured intervals.A decision version of this best barbecue problem is shown to be NP-complete.Because of the relevance for complex regulatory networks on gene expression in eukaryotic cells,they propose algorithmic variations that are suitable for the analysis of real data sets comprising either many sequences or many binding sites.The optimization problem studied generalizes frequent itemset mining.The contribution A mathematical program to refine gene regulatory networks by Guglielmo Lulli and Martin Romauch proposes a methodology for making sense of large,multiple time-series data sets arising in expression analysis.It introduces a mathematical model for producing a reduced and coherent regulatory system,provided a putative regulatory network is given.Two equivalent formulations of the problem are given,and NP-completeness is established.For solving large-scale instances,the authors implemented an ant-colony optimization procedure.The proposed algorithm is validated by a computational analysis on randomly generated test instances.The practicability of the proposed methodology is also shown using real data for Saccharomyces cerevisiae.Jutta Gebert,Nicole Radde,Ulrich Faigle,Julia Strösser,and Andreas Burkovski aim in their paper Modelling and simulation of nitrogen regulation in Corynebacterium glutamicum at understanding and predicting the interactions of macromolecules inside the cell.It sets up a theoretical model for biochemical networks,and introduces a general method for parameter estimation,applicable in the case of very short time series.This approach is applied to a special system concerning nitrogen uptake.The equations are set up for its main components,the corresponding optimization problem is formulated and solved, and simulations are carried out.2220Preface/Discrete Applied Mathematics157(2009)2217–2220Gerhard-Wilhelm Weber,Ömür Uˇg ur,Pakize Taylan,and Aysun Tezel model and predict gene-expression patterns incorporating a rigorous treatment of environmental aspects,and aspects of errors and uncertainty.For this purpose,they employ Chebyshev approximation and generalized semi-infinite optimization in their paper On optimization,dynamics and uncertainty:A tutorial for gene–environment networks.Then,time-discretized dynamical systems are studied,the region of parametric stability is detected by a combinatorial algorithm and,then,the topological landscape of gene–environment networks is analyzed in terms of its‘‘structural stability’’.We are convinced that all papers selected for this special issue constitute valuable contributions to many different areas in computational biology,employing methods from discrete mathematics and related fields.We again thank all colleagues who have participated in this exciting endeavor with care,foresight,and vision,for their highly appreciated help.Guest editorsAndreas DressBülent KarasözenPeter F.StadlerGerhard-Wilhelm Weber125July2008Available online29March2009 1Assistant to the guest editors:Mrs.Cand.MSc.Bengisen Pekmen(Institute of Applied Mathematics,METU,Ankara).。
对比修辞 英文作文高中
对比修辞英文作文高中英文:When it comes to rhetorical devices, one of the most commonly used is comparison. Comparison is the act of comparing two or more things, and it can be used tohighlight similarities or differences between them. There are several different types of comparison, including similes, metaphors, and analogies.Similes are comparisons that use the words "like" or "as". For example, "Her eyes were like the stars in the sky." This simile compares the woman's eyes to stars in the sky, emphasizing their brightness and beauty.Metaphors are comparisons that do not use the words "like" or "as". Instead, they equate one thing with another. For example, "Life is a journey." This metaphor compareslife to a journey, emphasizing the idea that life is a long and winding road with many twists and turns.Analogies are comparisons that draw similarities between two things that may not seem related at first glance. For example, "The human brain is like a computer." This analogy compares the human brain to a computer, emphasizing the idea that both are complex systems that process and store information.Comparison is a powerful tool in writing because it helps to create vivid imagery and make abstract concepts more concrete. By using comparisons, writers can help readers understand complex ideas and emotions in a more relatable way.中文:在修辞手法中,比较是最常用的一种。
英语翻译
第一部分:数词的译法一、数字增减的译法:1.句式特征:by+名词+比较级+thanThe wire is by three inches longer than that one.这根导线比那根长3英寸。
2.句式特征:表示增减意义的动词+to+n.译为:增加到。
或减少到。
Metal cutting machines have been decreased to 50.金属切割机已经减少到50台。
二、百分数增减的表示法与译法1.句式特征:表示增减意义的动词+%The output value has increased 35%.产值增加了35%2.句式特征:表示增减意义的动词+by+%Retail salses should rise by 8%商品零售额应增加3%The prime cost decreased by 60%.主要成本减少60%3.句式特征:表示减少意义的动词+to+%表示减少后剩余的数量By using this new-process the loss of metal was reduced to 20%.采用这种新工艺,铁的损失量减少到20%4.句式特征:%+比较级+than表示净增减的数量Retail sales are expected to be nine percent higher than last year.今年零售额与去年相比,有望增加9%。
5.句式特征:%+比较级+名词表示净减数The new-type machine wasted 10 percent engergy supplied. 新型机械能耗量净减10%6.句式特征:a + % + increase表示净增数There is a 20% increase of steel as compared with last year.与去年相比,今年钢产量净增20%7.句式特征:%+ (of) 名词(代词)表示净减数,数字n照译The production cost is about 60 percent that of last year.今年产值仅为去年的60%8.句式特征:%+up on 或over表示净增数The grain output of last year in this province was 20% percent up on that of 1978.去年粮食产量比1978年净增20%。
专八英语阅读
英语专业八级考试TEM-8阅读理解练习册(1)(英语专业2012级)UNIT 1Text AEvery minute of every day, what ecologist生态学家James Carlton calls a global ―conveyor belt‖, redistributes ocean organisms生物.It’s planetwide biological disruption生物的破坏that scientists have barely begun to understand.Dr. Carlton —an oceanographer at Williams College in Williamstown,Mass.—explains that, at any given moment, ―There are several thousand marine species traveling… in the ballast water of ships.‖ These creatures move from coastal waters where they fit into the local web of life to places where some of them could tear that web apart. This is the larger dimension of the infamous无耻的,邪恶的invasion of fish-destroying, pipe-clogging zebra mussels有斑马纹的贻贝.Such voracious贪婪的invaders at least make their presence known. What concerns Carlton and his fellow marine ecologists is the lack of knowledge about the hundreds of alien invaders that quietly enter coastal waters around the world every day. Many of them probably just die out. Some benignly亲切地,仁慈地—or even beneficially — join the local scene. But some will make trouble.In one sense, this is an old story. Organisms have ridden ships for centuries. They have clung to hulls and come along with cargo. What’s new is the scale and speed of the migrations made possible by the massive volume of ship-ballast water压载水— taken in to provide ship stability—continuously moving around the world…Ships load up with ballast water and its inhabitants in coastal waters of one port and dump the ballast in another port that may be thousands of kilometers away. A single load can run to hundreds of gallons. Some larger ships take on as much as 40 million gallons. The creatures that come along tend to be in their larva free-floating stage. When discharged排出in alien waters they can mature into crabs, jellyfish水母, slugs鼻涕虫,蛞蝓, and many other forms.Since the problem involves coastal species, simply banning ballast dumps in coastal waters would, in theory, solve it. Coastal organisms in ballast water that is flushed into midocean would not survive. Such a ban has worked for North American Inland Waterway. But it would be hard to enforce it worldwide. Heating ballast water or straining it should also halt the species spread. But before any such worldwide regulations were imposed, scientists would need a clearer view of what is going on.The continuous shuffling洗牌of marine organisms has changed the biology of the sea on a global scale. It can have devastating effects as in the case of the American comb jellyfish that recently invaded the Black Sea. It has destroyed that sea’s anchovy鳀鱼fishery by eating anchovy eggs. It may soon spread to western and northern European waters.The maritime nations that created the biological ―conveyor belt‖ should support a coordinated international effort to find out what is going on and what should be done about it. (456 words)1.According to Dr. Carlton, ocean organism‟s are_______.A.being moved to new environmentsB.destroying the planetC.succumbing to the zebra musselD.developing alien characteristics2.Oceanographers海洋学家are concerned because_________.A.their knowledge of this phenomenon is limitedB.they believe the oceans are dyingC.they fear an invasion from outer-spaceD.they have identified thousands of alien webs3.According to marine ecologists, transplanted marinespecies____________.A.may upset the ecosystems of coastal watersB.are all compatible with one anotherC.can only survive in their home watersD.sometimes disrupt shipping lanes4.The identified cause of the problem is_______.A.the rapidity with which larvae matureB. a common practice of the shipping industryC. a centuries old speciesD.the world wide movement of ocean currents5.The article suggests that a solution to the problem__________.A.is unlikely to be identifiedB.must precede further researchC.is hypothetically假设地,假想地easyD.will limit global shippingText BNew …Endangered‟ List Targets Many US RiversIt is hard to think of a major natural resource or pollution issue in North America today that does not affect rivers.Farm chemical runoff残渣, industrial waste, urban storm sewers, sewage treatment, mining, logging, grazing放牧,military bases, residential and business development, hydropower水力发电,loss of wetlands. The list goes on.Legislation like the Clean Water Act and Wild and Scenic Rivers Act have provided some protection, but threats continue.The Environmental Protection Agency (EPA) reported yesterday that an assessment of 642,000 miles of rivers and streams showed 34 percent in less than good condition. In a major study of the Clean Water Act, the Natural Resources Defense Council last fall reported that poison runoff impairs损害more than 125,000 miles of rivers.More recently, the NRDC and Izaak Walton League warned that pollution and loss of wetlands—made worse by last year’s flooding—is degrading恶化the Mississippi River ecosystem.On Tuesday, the conservation group保护组织American Rivers issued its annual list of 10 ―endangered‖ and 20 ―threatened‖ rivers in 32 states, the District of Colombia, and Canada.At the top of the list is the Clarks Fork of the Yellowstone River, whereCanadian mining firms plan to build a 74-acre英亩reservoir水库,蓄水池as part of a gold mine less than three miles from Yellowstone National Park. The reservoir would hold the runoff from the sulfuric acid 硫酸used to extract gold from crushed rock.―In the event this tailings pond failed, the impact to th e greater Yellowstone ecosystem would be cataclysmic大变动的,灾难性的and the damage irreversible不可逆转的.‖ Sen. Max Baucus of Montana, chairman of the Environment and Public Works Committee, wrote to Noranda Minerals Inc., an owner of the ― New World Mine‖.Last fall, an EPA official expressed concern about the mine and its potential impact, especially the plastic-lined storage reservoir. ― I am unaware of any studies evaluating how a tailings pond尾矿池,残渣池could be maintained to ensure its structural integrity forev er,‖ said Stephen Hoffman, chief of the EPA’s Mining Waste Section. ―It is my opinion that underwater disposal of tailings at New World may present a potentially significant threat to human health and the environment.‖The results of an environmental-impact statement, now being drafted by the Forest Service and Montana Department of State Lands, could determine the mine’s future…In its recent proposal to reauthorize the Clean Water Act, the Clinton administration noted ―dramatically improved water quality since 1972,‖ when the act was passed. But it also reported that 30 percent of riverscontinue to be degraded, mainly by silt泥沙and nutrients from farm and urban runoff, combined sewer overflows, and municipal sewage城市污水. Bottom sediments沉积物are contaminated污染in more than 1,000 waterways, the administration reported in releasing its proposal in January. Between 60 and 80 percent of riparian corridors (riverbank lands) have been degraded.As with endangered species and their habitats in forests and deserts, the complexity of ecosystems is seen in rivers and the effects of development----beyond the obvious threats of industrial pollution, municipal waste, and in-stream diversions改道to slake消除the thirst of new communities in dry regions like the Southwes t…While there are many political hurdles障碍ahead, reauthorization of the Clean Water Act this year holds promise for US rivers. Rep. Norm Mineta of California, who chairs the House Committee overseeing the bill, calls it ―probably the most important env ironmental legislation this Congress will enact.‖ (553 words)6.According to the passage, the Clean Water Act______.A.has been ineffectiveB.will definitely be renewedC.has never been evaluatedD.was enacted some 30 years ago7.“Endangered” rivers are _________.A.catalogued annuallyB.less polluted than ―threatened rivers‖C.caused by floodingD.adjacent to large cities8.The “cataclysmic” event referred to in paragraph eight would be__________.A. fortuitous偶然的,意外的B. adventitious外加的,偶然的C. catastrophicD. precarious不稳定的,危险的9. The owners of the New World Mine appear to be______.A. ecologically aware of the impact of miningB. determined to construct a safe tailings pondC. indifferent to the concerns voiced by the EPAD. willing to relocate operations10. The passage conveys the impression that_______.A. Canadians are disinterested in natural resourcesB. private and public environmental groups aboundC. river banks are erodingD. the majority of US rivers are in poor conditionText CA classic series of experiments to determine the effects ofoverpopulation on communities of rats was reported in February of 1962 in an article in Scientific American. The experiments were conducted by a psychologist, John B. Calhoun and his associates. In each of these experiments, an equal number of male and female adult rats were placed in an enclosure and given an adequate supply of food, water, and other necessities. The rat populations were allowed to increase. Calhoun knew from experience approximately how many rats could live in the enclosures without experiencing stress due to overcrowding. He allowed the population to increase to approximately twice this number. Then he stabilized the population by removing offspring that were not dependent on their mothers. He and his associates then carefully observed and recorded behavior in these overpopulated communities. At the end of their experiments, Calhoun and his associates were able to conclude that overcrowding causes a breakdown in the normal social relationships among rats, a kind of social disease. The rats in the experiments did not follow the same patterns of behavior as rats would in a community without overcrowding.The females in the rat population were the most seriously affected by the high population density: They showed deviant异常的maternal behavior; they did not behave as mother rats normally do. In fact, many of the pups幼兽,幼崽, as rat babies are called, died as a result of poor maternal care. For example, mothers sometimes abandoned their pups,and, without their mothers' care, the pups died. Under normal conditions, a mother rat would not leave her pups alone to die. However, the experiments verified that in overpopulated communities, mother rats do not behave normally. Their behavior may be considered pathologically 病理上,病理学地diseased.The dominant males in the rat population were the least affected by overpopulation. Each of these strong males claimed an area of the enclosure as his own. Therefore, these individuals did not experience the overcrowding in the same way as the other rats did. The fact that the dominant males had adequate space in which to live may explain why they were not as seriously affected by overpopulation as the other rats. However, dominant males did behave pathologically at times. Their antisocial behavior consisted of attacks on weaker male,female, and immature rats. This deviant behavior showed that even though the dominant males had enough living space, they too were affected by the general overcrowding in the enclosure.Non-dominant males in the experimental rat communities also exhibited deviant social behavior. Some withdrew completely; they moved very little and ate and drank at times when the other rats were sleeping in order to avoid contact with them. Other non-dominant males were hyperactive; they were much more active than is normal, chasing other rats and fighting each other. This segment of the rat population, likeall the other parts, was affected by the overpopulation.The behavior of the non-dominant males and of the other components of the rat population has parallels in human behavior. People in densely populated areas exhibit deviant behavior similar to that of the rats in Calhoun's experiments. In large urban areas such as New York City, London, Mexican City, and Cairo, there are abandoned children. There are cruel, powerful individuals, both men and women. There are also people who withdraw and people who become hyperactive. The quantity of other forms of social pathology such as murder, rape, and robbery also frequently occur in densely populated human communities. Is the principal cause of these disorders overpopulation? Calhoun’s experiments suggest that it might be. In any case, social scientists and city planners have been influenced by the results of this series of experiments.11. Paragraph l is organized according to__________.A. reasonsB. descriptionC. examplesD. definition12.Calhoun stabilized the rat population_________.A. when it was double the number that could live in the enclosure without stressB. by removing young ratsC. at a constant number of adult rats in the enclosureD. all of the above are correct13.W hich of the following inferences CANNOT be made from theinformation inPara. 1?A. Calhoun's experiment is still considered important today.B. Overpopulation causes pathological behavior in rat populations.C. Stress does not occur in rat communities unless there is overcrowding.D. Calhoun had experimented with rats before.14. Which of the following behavior didn‟t happen in this experiment?A. All the male rats exhibited pathological behavior.B. Mother rats abandoned their pups.C. Female rats showed deviant maternal behavior.D. Mother rats left their rat babies alone.15. The main idea of the paragraph three is that __________.A. dominant males had adequate living spaceB. dominant males were not as seriously affected by overcrowding as the otherratsC. dominant males attacked weaker ratsD. the strongest males are always able to adapt to bad conditionsText DThe first mention of slavery in the statutes法令,法规of the English colonies of North America does not occur until after 1660—some forty years after the importation of the first Black people. Lest we think that existed in fact before it did in law, Oscar and Mary Handlin assure us, that the status of B lack people down to the 1660’s was that of servants. A critique批判of the Handlins’ interpretation of why legal slavery did not appear until the 1660’s suggests that assumptions about the relation between slavery and racial prejudice should be reexamined, and that explanation for the different treatment of Black slaves in North and South America should be expanded.The Handlins explain the appearance of legal slavery by arguing that, during the 1660’s, the position of white servants was improving relative to that of black servants. Thus, the Handlins contend, Black and White servants, heretofore treated alike, each attained a different status. There are, however, important objections to this argument. First, the Handlins cannot adequately demonstrate that t he White servant’s position was improving, during and after the 1660’s; several acts of the Maryland and Virginia legislatures indicate otherwise. Another flaw in the Handlins’ interpretation is their assumption that prior to the establishment of legal slavery there was no discrimination against Black people. It is true that before the 1660’s Black people were rarely called slaves. But this shouldnot overshadow evidence from the 1630’s on that points to racial discrimination without using the term slavery. Such discrimination sometimes stopped short of lifetime servitude or inherited status—the two attributes of true slavery—yet in other cases it included both. The Handlins’ argument excludes the real possibility that Black people in the English colonies were never treated as the equals of White people.The possibility has important ramifications后果,影响.If from the outset Black people were discriminated against, then legal slavery should be viewed as a reflection and an extension of racial prejudice rather than, as many historians including the Handlins have argued, the cause of prejudice. In addition, the existence of discrimination before the advent of legal slavery offers a further explanation for the harsher treatment of Black slaves in North than in South America. Freyre and Tannenbaum have rightly argued that the lack of certain traditions in North America—such as a Roman conception of slavery and a Roman Catholic emphasis on equality— explains why the treatment of Black slaves was more severe there than in the Spanish and Portuguese colonies of South America. But this cannot be the whole explanation since it is merely negative, based only on a lack of something. A more compelling令人信服的explanation is that the early and sometimes extreme racial discrimination in the English colonies helped determine the particular nature of the slavery that followed. (462 words)16. Which of the following is the most logical inference to be drawn from the passage about the effects of “several acts of the Maryland and Virginia legislatures” (Para.2) passed during and after the 1660‟s?A. The acts negatively affected the pre-1660’s position of Black as wellas of White servants.B. The acts had the effect of impairing rather than improving theposition of White servants relative to what it had been before the 1660’s.C. The acts had a different effect on the position of white servants thandid many of the acts passed during this time by the legislatures of other colonies.D. The acts, at the very least, caused the position of White servants toremain no better than it had been before the 1660’s.17. With which of the following statements regarding the status ofBlack people in the English colonies of North America before the 1660‟s would the author be LEAST likely to agree?A. Although black people were not legally considered to be slaves,they were often called slaves.B. Although subject to some discrimination, black people had a higherlegal status than they did after the 1660’s.C. Although sometimes subject to lifetime servitude, black peoplewere not legally considered to be slaves.D. Although often not treated the same as White people, black people,like many white people, possessed the legal status of servants.18. According to the passage, the Handlins have argued which of thefollowing about the relationship between racial prejudice and the institution of legal slavery in the English colonies of North America?A. Racial prejudice and the institution of slavery arose simultaneously.B. Racial prejudice most often the form of the imposition of inheritedstatus, one of the attributes of slavery.C. The source of racial prejudice was the institution of slavery.D. Because of the influence of the Roman Catholic Church, racialprejudice sometimes did not result in slavery.19. The passage suggests that the existence of a Roman conception ofslavery in Spanish and Portuguese colonies had the effect of _________.A. extending rather than causing racial prejudice in these coloniesB. hastening the legalization of slavery in these colonies.C. mitigating some of the conditions of slavery for black people in these coloniesD. delaying the introduction of slavery into the English colonies20. The author considers the explanation put forward by Freyre andTannenbaum for the treatment accorded B lack slaves in the English colonies of North America to be _____________.A. ambitious but misguidedB. valid有根据的but limitedC. popular but suspectD. anachronistic过时的,时代错误的and controversialUNIT 2Text AThe sea lay like an unbroken mirror all around the pine-girt, lonely shores of Orr’s Island. Tall, kingly spruce s wore their regal王室的crowns of cones high in air, sparkling with diamonds of clear exuded gum流出的树胶; vast old hemlocks铁杉of primeval原始的growth stood darkling in their forest shadows, their branches hung with long hoary moss久远的青苔;while feathery larches羽毛般的落叶松,turned to brilliant gold by autumn frosts, lighted up the darker shadows of the evergreens. It was one of those hazy朦胧的, calm, dissolving days of Indian summer, when everything is so quiet that the fainest kiss of the wave on the beach can be heard, and white clouds seem to faint into the blue of the sky, and soft swathing一长条bands of violet vapor make all earth look dreamy, and give to the sharp, clear-cut outlines of the northern landscape all those mysteries of light and shade which impart such tenderness to Italian scenery.The funeral was over,--- the tread鞋底的花纹/ 踏of many feet, bearing the heavy burden of two broken lives, had been to the lonely graveyard, and had come back again,--- each footstep lighter and more unconstrained不受拘束的as each one went his way from the great old tragedy of Death to the common cheerful of Life.The solemn black clock stood swaying with its eternal ―tick-tock, tick-tock,‖ in the kitchen of the brown house on Orr’s Island. There was there that sense of a stillness that can be felt,---such as settles down on a dwelling住处when any of its inmates have passed through its doors for the last time, to go whence they shall not return. The best room was shut up and darkened, with only so much light as could fall through a little heart-shaped hole in the window-shutter,---for except on solemn visits, or prayer-meetings or weddings, or funerals, that room formed no part of the daily family scenery.The kitchen was clean and ample, hearth灶台, and oven on one side, and rows of old-fashioned splint-bottomed chairs against the wall. A table scoured to snowy whiteness, and a little work-stand whereon lay the Bible, the Missionary Herald, and the Weekly Christian Mirror, before named, formed the principal furniture. One feature, however, must not be forgotten, ---a great sea-chest水手用的储物箱,which had been the companion of Zephaniah through all the countries of the earth. Old, and battered破旧的,磨损的, and unsightly难看的it looked, yet report said that there was good store within which men for the most part respect more than anything else; and, indeed it proved often when a deed of grace was to be done--- when a woman was suddenly made a widow in a coast gale大风,狂风, or a fishing-smack小渔船was run down in the fogs off the banks, leaving in some neighboring cottage a family of orphans,---in all such cases, the opening of this sea-chest was an event of good omen 预兆to the bereaved丧亲者;for Zephaniah had a large heart and a large hand, and was apt有…的倾向to take it out full of silver dollars when once it went in. So the ark of the covenant约柜could not have been looked on with more reverence崇敬than the neighbours usually showed to Captain Pennel’s sea-chest.1. The author describes Orr‟s Island in a(n)______way.A.emotionally appealing, imaginativeB.rational, logically preciseC.factually detailed, objectiveD.vague, uncertain2.According to the passage, the “best room”_____.A.has its many windows boarded upB.has had the furniture removedC.is used only on formal and ceremonious occasionsD.is the busiest room in the house3.From the description of the kitchen we can infer that thehouse belongs to people who_____.A.never have guestsB.like modern appliancesC.are probably religiousD.dislike housework4.The passage implies that_______.A.few people attended the funeralB.fishing is a secure vocationC.the island is densely populatedD.the house belonged to the deceased5.From the description of Zephaniah we can see thathe_________.A.was physically a very big manB.preferred the lonely life of a sailorC.always stayed at homeD.was frugal and saved a lotText BBasic to any understanding of Canada in the 20 years after the Second World War is the country' s impressive population growth. For every three Canadians in 1945, there were over five in 1966. In September 1966 Canada's population passed the 20 million mark. Most of this surging growth came from natural increase. The depression of the 1930s and the war had held back marriages, and the catching-up process began after 1945. The baby boom continued through the decade of the 1950s, producing a population increase of nearly fifteen percent in the five years from 1951 to 1956. This rate of increase had been exceeded only once before in Canada's history, in the decade before 1911 when the prairies were being settled. Undoubtedly, the good economic conditions of the 1950s supported a growth in the population, but the expansion also derived from a trend toward earlier marriages and an increase in the average size of families; In 1957 the Canadian birth rate stood at 28 per thousand, one of the highest in the world. After the peak year of 1957, thebirth rate in Canada began to decline. It continued falling until in 1966 it stood at the lowest level in 25 years. Partly this decline reflected the low level of births during the depression and the war, but it was also caused by changes in Canadian society. Young people were staying at school longer, more women were working; young married couples were buying automobiles or houses before starting families; rising living standards were cutting down the size of families. It appeared that Canada was once more falling in step with the trend toward smaller families that had occurred all through theWestern world since the time of the Industrial Revolution. Although the growth in Canada’s population had slowed down by 1966 (the cent), another increase in the first half of the 1960s was only nine percent), another large population wave was coming over the horizon. It would be composed of the children of the children who were born during the period of the high birth rate prior to 1957.6. What does the passage mainly discuss?A. Educational changes in Canadian society.B. Canada during the Second World War.C. Population trends in postwar Canada.D. Standards of living in Canada.7. According to the passage, when did Canada's baby boom begin?A. In the decade after 1911.B. After 1945.C. During the depression of the 1930s.D. In 1966.8. The author suggests that in Canada during the 1950s____________.A. the urban population decreased rapidlyB. fewer people marriedC. economic conditions were poorD. the birth rate was very high9. When was the birth rate in Canada at its lowest postwar level?A. 1966.B. 1957.C. 1956.D. 1951.10. The author mentions all of the following as causes of declines inpopulation growth after 1957 EXCEPT_________________.A. people being better educatedB. people getting married earlierC. better standards of livingD. couples buying houses11.I t can be inferred from the passage that before the IndustrialRevolution_______________.A. families were largerB. population statistics were unreliableC. the population grew steadilyD. economic conditions were badText CI was just a boy when my father brought me to Harlem for the first time, almost 50 years ago. We stayed at the hotel Theresa, a grand brick structure at 125th Street and Seventh avenue. Once, in the hotel restaurant, my father pointed out Joe Louis. He even got Mr. Brown, the hotel manager, to introduce me to him, a bit punchy强力的but still champ焦急as fast as I was concerned.Much has changed since then. Business and real estate are booming. Some say a new renaissance is under way. Others decry责难what they see as outside forces running roughshod肆意践踏over the old Harlem. New York meant Harlem to me, and as a young man I visited it whenever I could. But many of my old haunts are gone. The Theresa shut down in 1966. National chains that once ignored Harlem now anticipate yuppie money and want pieces of this prime Manhattan real estate. So here I am on a hot August afternoon, sitting in a Starbucks that two years ago opened a block away from the Theresa, snatching抓取,攫取at memories between sips of high-priced coffee. I am about to open up a piece of the old Harlem---the New York Amsterdam News---when a tourist。
2022年GMAT考试阅读模拟练习题新
2022年GMAT考试阅读模拟练习题Biologists have advanced two theories to explain why schooling of fish occurs in so many fish species. Because schooling is particularly wide spread among species of small fish, both theories assume that schooling offers the advantage of some protection from predators.Proponents of theory A dispute the assumption that a school of thousands of fish is highly visible. Experiments have shown that any fish can be seen, even in very clear water, only within a sphere of 200 meters in diameter. When fish are in a compact group, the sphere of visibility overlap. Thus, the chance of a predator finding the school is only slightly greater than the chance of the predator finding a single fish swimming alone. Schooling is advantageous to the individual fish because a predator’s chance of finding any particular fish swimming in the school is much smaller than its chance of finding at least one of the same group of fish if the fish were dispersed throughout an area.However, critics of theory A point out that some fish form schools even in areas where predators are abundant and thus little possibility fo excaping detection exists. They argue that the school continues to be of value to its members even after detection. They advocate theory B, the “confusion effect,” which can be explained in two different ways.Sometimes, proponents argue, predators simply cannot decide which fish to attack. This indecision supposedly results from a predator’s preference for striking prey that is distinct from the rest of the school in appearance. In many schools the fish are almost indentical in appearance, making it difficult for a predator to select one. The second explanation for the “confusion effect” has to do with the sensory confusion caused by a large number of prey moving around the predator. Even if the predator makes the decision to attack a particular fish, the movement of other prey in the school can be distracting. The predator’s difficulty can be compared to that ofa tennis player trying to hit a tennis ball when two are approaching simultaneously.1. According to the passage, theory B states that which of the following is a factor that enables a schooling fish to escape predators?(A) The tendency of fish to form compact groups(B) The movement of other fish within the school(C) The inability of predators to detect schools(D) The ability of fish to hide behind one another in a school(E) The great speed with which a school can disperse2. According to the passage, both theory A and theory B have been developed to explain how(A) fish hide from predators by forming schools(B) forming schools functions to protect fish from predators(C) schooling among fish differs from other protective behaviors(D) small fish are able to make rapid decisions(E) small fish are able to survive in an environment densely populated by large predators3. According to one explanation of the “confusion effect”, a fish that swims in a school will have greater advantages for survival if it(A) A tends to be visible for no more than 200 meters(B) B stays near either the front or the rear of a school(C) C is part of a small school rather than a large school(D) D is very similar in appearance to the other fish in the school(E) E is medium-sized4. The author is primarily concerned with(A) discussing different theories(B) analyzing different techniques(C) defending two hypotheses(D) defending two hypotheses(E) revealing new evidence这是一篇典型的GMAT阅读多重解释型的文章。
THE COMPARISON OF LUCULLUS WITH CIMON
75 ADTHE COMPARISON OF LUCULLUS WITH CIMONby Plutarchtranslated by John DrydenONE might bless the end of Lucullus, which was so timed as to let him die before the great revolution, which fate, by intestine wars, was already effecting against the established government, and to close his life in a free though troubled commonwealth. And in this, aboveall other things, Cimon and he are alike. For he died also when Greece was as yet undisordered, in its highest felicity; though in thefield at the head of his army, not recalled, nor out of his mind,nor sullying the glory of his wars, engagements, and conquests, by making feastings and debauches seem the apparent end and aim of them all; as Plato says scornfully of Orpheus, that he makes an eternal debauch hereafter the reward of those who lived well here. Indeed, ease and quiet, and the study of pleasant and speculative learning, to an old man retiring from command and office, is a most suitable and becoming solace; but to misguide virtuous actions to pleasure as their utmost end, and as the conclusion of campaigns and commands, to keep the feast of Venus, did not become the noble Academy, and the follower of Xenocrates, but rather one that inclined to Epicurus. And this is one surprising point of contrast between them; Cimon's youth was ill reputed and intemperate, Lucullus's well disciplined and sober. Undoubtedly we must give the preference to the change for good, for it argues the better nature, where vice declines and virtue grows. Both had great wealth, but employed it in different ways; and there is no comparison between the south wall of the acropolis built by Cimon, and the chambers and galleries, with their sea-views, built at Naples by Lucullus, out of the spoils of the barbarians. Neither can wecompare Cimon's popular and liberal table with the sumptuousoriental one of Lucullus, the former receiving a great many guests every day at small cost, and the latter expensively spread for a few men of pleasure, unless you will say that different times made the alteration. For who can tell but that Cimon, if he had retired inhis old age from business and war to quiet and solitude, might have lived a more luxurious and self-indulgent life, as he was fond of wine and company, and accused, as has been said, of laxity with women?The better pleasures gained in successful action and effort leavethe baser appetites no time or place, and make active and heroic menforget them. Had but Lucullus ended his days in the field, and in command, envy and detraction itself could never have accused him. So much for their manner of life.In war, it is plain they were both soldiers of excellent conduct, both at land and sea. But as in the games they honour thosechampions who on the same day gain the garland, both in wrestlingand in the pancratium, with the name of "Victors and more," so Cimon, honouring Greece with a sea and land victory on the same day, may claim a certain pre-eminence among commanders. Lucullus received command from his country, whereas Cimon brought it to his. Heannexed the territories of enemies to her, who ruled over confederates before, but Cimon made his country, which when he began was a mere follower of others, both rule over confederates, and conquer enemies too, forcing the Persians to relinquish the sea, and inducing the Lacedaemonians to surrender their command. If it be the chiefest thing in a general to obtain the obedience of his soldiers by good-will, Lucullus was despised by his own army, but Cimon highly prized even by others. His soldiers deserted the one, the confederates came over to the other. Lucullus came home without the forces which he led out; Cimon, sent out at first to serve as one confederate among others, returned home with authority even over these also, having successfully effected for his city three most difficult services, establishing peace with the enemy, dominion over confederates, and concord with Lacedaemon. Both aiming to destroy great kingdoms, and subdue all Asia, failed in their enterprise, Cimon by a simple piece ofill-fortune, for he died when general, in the height of success; but Lucullus no man can wholly acquit of being in fault with his soldiers, whether it were he did not know, or would not comply with, the distastes and complaints of his army, which brought him at last into such extreme unpopularity among them. But did not Cimon also suffer like him in this? For the citizens arraigned him, and did not leaveoff till they had banished him, that, as Plato says, they might not hear him for the space of ten years. For high and noble minds seldom please the vulgar, or are acceptable to them; for the force they use to straighten their distorted actions gives the same pain as surgeons' bandages do in bringing dislocated bones to their natural position. Both of them, perhaps, come off pretty much with an equal acquittal on this count.Lucullus very much outwent him in war, being the first Roman who carried an army over Taurus, passed the Tigris, took and burned the royal palaces of Asia in the sight of the kings, Tigranocerta, Cabira, Sinope, and Nisibis, seizing and overwhelming the northern parts asfar as the Phasis, the east as far as Media, and making the Southand Red Sea his own through the kings of the Arabians. He shatteredthe power of the kings, and narrowly missed their persons, whilelike wild beasts they fled away into deserts and thick andimpassable woods. In demonstration of this superiority, we see that the Persians, as if no great harm had befallen them under Cimon,soon after appeared in arms against the Greeks, and overcame and destroyed their numerous forces in Egypt. But after Lucullus, Tigranes and Mithridates were able to do nothing; the latter, being disabled and broken in the former wars, never dared to show his army to Pompey outside the camp, but fled away to Bosporus, and there died. Tigranes threw himself, naked and unarmed, down before Pompey, and taking his crown from his head laid it at his feet, complimenting Pompey with what was not his own, but, in real truth, the conquest already effected by Lucullus. And when he received the ensigns of majesty again, he was well pleased, evidently because he had forfeited them before. And the commander, as the wrestler, is to be accounted to have done most who leaves an adversary almost conquered for his successor. Cimon moreover, when he took the command, found the power of the king broken, and the spirits of the Persians humbled by their great defeats and incessant routs under Themistocles, Pausanias, and Leontychides, and thus easily overcame the bodies of men whose souls were quelled and defeated beforehand. But Tigranes had never yet in many combats been beaten, and was flushed with success when he engaged with Lucullus. There is no comparison between the numbers which came against Lucullus and those subdued by Cimon. All which things being rightly considered, it is a hard matter to give judgment. For supernatural favour also appears to have attended both of them, directing the one what to do, the other what to avoid, and thus they have, both of them, so to say, the vote of the gods, to declare them noble and divine characters.THE END。
GMAT考试阅读试题(七)(8)
Passage 44 According to a recent theory, Archean-age gold-quartz vein systems were formed over two billion years ago from magmatic fluids that originated from molten granitelike bodies deep beneath the surface of the Earth. This theory is(5)contrary to the widely held view that the systems were deposited from metamorphic fluids,that is,from fluids that formed during the dehydration of wet sedimentary rocks. he recently developed theory has considerable practical importance. Most of the gold deposits discovered during(10)the original gold rushes were exposed at the Earth‘s surface and were found because they had shed trails of alluvial gold that were easily traced by simple prospecting methods. Although these same methods still lead to an occasional discovery, most deposits not yet discovered have gone(15) undetected because they are buried and have no surface expression. The challenge in exploration is therefore to unravel the subsurface geology of an area and pinpoint the position of buried minerals. Methods widely used today include(20)analysis of aerial images that yield a broad geological overview; geophysical techniques that provide data on the magnetic,electrical,and mineralogical properties of the rocks being investigated;and sensitive chemical tests that are able to detect the subtle chemical halos that often(25)envelop mineralization. However,none of these high-technology methods are of any value if the sites to which they are applied have never mineralized,and to maximize the chances of discovery the explorer must therefore pay particular attention to selecting the ground formations most(30)likely to be mineralized. Such ground selection relies to varying degrees on conceptual models,which take into account theoretical studies of relevant factors. These models are constructed primarily from empirical observations of known mineral deposits and from theories35) of ore-forming processes. The explorer uses the models to identify those geological features that are critical to the formation of the mineralization being modeled,and then tries to select areas for exploration that exhibit as many of the critical features as possible. 1. The author is primarily concerned with (A) advocating a return to an older methodology (B) explaining the importance of a recent theory (C) enumerating differences between two widely used methods (D) describing events leading to a discovery (E) challenging the assumptions on which a theory is based 2. According to the passage,the widely held view of Archean-age gold-quartz vein systems is that such systems (A) were formed from metamorphic fluids (B) originated in molten granitelike bodies (C) were formed from alluvial deposits (D) generally have surface expression (E) are not discoverable through chemical tests 3. The passage implies that which of the following steps would be the first performed by explorers who wish to maximize their chances of discovering gold? (A) Surveying several sites known to have been formed more than two billion years ago (B) Limiting exploration to sites known to have been formed from metamorphic fluid. (C) Using an appropriate conceptual model to select a site for further exploration (D) Using geophysical methods to analyze rocks over a broad area (E) Limiting exploration to sites where alluvial gold has previously been found 4. Which of the following statements about discoveries of gold deposits is supported by information in the passage? (A) The number of gold discoveries made annually hasincreased between the time of the original gold rushesand the present. (B) New discoveries of gold deposits are likely to be the result of exploration techniques designed to locate buried mineralization. (C) It is unlikely that newly discovered gold deposits willever yield as much as did those deposits discoveredduring the original gold rushes. (D) Modern explorers are divided on the question of theutility of simple prospecting methods as a source ofnew discoveries of gold deposits. (E) Models based on the theory that gold originated from magmatic fluids have already led to new discoveries of gold deposits. 5. It can be inferred from the passage that which of the following is easiest to detect? (A) A gold-quartz vein system originating in magmatic fluids (B) A gold-quartz vein system originating in meamorphic fluids (C) A gold deposit that is mixed with granite (D) A gold deposit that has shed alluvial gold (E) A gold deposit that exhibits chemical halos 6. The theory mentioned in line 1 relates to the conceptual models discussed in the passage in which of the following ways? (A) It may furnish a valid account of ore-forming processes,and,hence,can support conceptual models that have great practical significance. (B) It suggests that certain geological formations,long believed to be mineralized,are in fact mineralized, thus confirming current conceptual models. (C) It suggests that there may not be enough similarity across Archean-age gold-quartz vein systems to warrant the formulation of conceptual models. (D) It corrects existing theories about the chemical halos of gold deposits,and thus provides a basis for correcting current conceptual models. (E) It suggests that simple prospecting methods still have a higher success rate in the discovery of gold deposits than do more modern methods. 7. According to the passage,methods of exploring for gold that are widely used today are based on which of the following facts? (A) Most of the Earth‘s remaining gold deposits are still molten. (B) Most of the Earth‘s remaining gold deposits are exposed at the surface. (C) Most of the Earth‘s remaining gold deposits are buried and have no surface expression. (D) Only one type of gold deposit warrants exploration, since the other types of gold deposits are found in regions difficult to reach. (E) Only one type of gold deposit warrants exploration, since the other types of gold deposits are unlikely to yield concentrated quantities of gold. 8. It can be inferred from the passage that the efficiency of model-based gold exploration depends on which of the following? Ⅰ. The closeness of the match between the geological features identified by the model as critical and the actual geological features of a given area Ⅱ. The degree to which the model chosen relies on empirical observation of known mineral deposits rather than on theories of ore-forming processes Ⅲ. The degree to which the model chosen is based on an accurate description of the events leading to mineralization (A)Ⅰonly (B)Ⅱ only (C)Ⅰand Ⅱ only (D)Ⅰ and Ⅲ only (E)Ⅰ,Ⅱ and Ⅲ。
英语修辞判断练习题
英语修辞判断练习题English Rhetorical Analysis ExerciseQuestion 1: Analyzing Persuasive TechniquesRead the following excerpt from a political speech and identify the rhetorical strategies used by the speaker to persuade the audience."Good evening, fellow citizens. Our nation stands at a crossroads, a pivotal moment in history where our choiceswill shape the future of generations to come. We have the opportunity to embrace change, to forge a new path that leads to prosperity and unity. But let us not be blinded by the allure of the status quo, for it is a path that leads to stagnation and division. We must choose progress over complacency, unity over discord, and a future that is bright with hope over one that is shrouded in doubt."Instructions:- Identify the rhetorical device used in the phrase "Our nation stands at a crossroads."- Explain how the use of "a pivotal moment in history" appeals to the audience's sense of importance.- Discuss the persuasive impact of the binary choices presented ("progress over complacency, unity over discord").Question 2: Analyzing Descriptive LanguageExamine the following passage from a novel and discuss how the author uses descriptive language to create vivid imagery."The sun dipped below the horizon, painting the sky with hues of crimson and gold. The waves lapped gently against the shore, their rhythmic song a lullaby to the day's end. A solitary seagull cried out, its voice echoing across the vast expanse of the sea, a testament to the enduring spirit of nature."Instructions:- Describe the colors used by the author and their effect on the reader's imagination.- Analyze the personification of the waves and its emotional impact.- Discuss the significance of the seagull's cry in the context of the passage.Question 3: Analyzing Logical AppealsConsider the following argument from an op-ed piece and evaluate the logical structure of the argument."The current education system is failing our children. Year after year, standardized test scores are declining,indicating a clear trend of educational decline. If we do notaddress this issue, our future workforce will be ill-prepared to compete in the global market. Investing in education is not just a moral imperative; it is an economic necessity."Instructions:- Identify the logical fallacy, if any, in the argument.- Discuss the use of evidence (standardized test scores) to support the claim.- Evaluate the strength of the argument based on its logical structure.Question 4: Analyzing Emotional AppealsRead the following excerpt from a speech given at a memorial service and identify the rhetorical strategies used to evoke emotion."We gather here today to remember a life that was cut tragically short. A life filled with laughter, love, and boundless energy. Though our hearts are heavy with sorrow, we must also celebrate the joy that [Name] brought into our lives. Let us hold onto the memories, for they are the threads that weave the tapestry of our shared experience."Instructions:- Identify the emotional appeal used in the phrase "a life filled with laughter, love, and boundless energy."- Analyze how the speaker balances the emotions of sorrow and celebration.- Discuss the use of metaphor in the last sentence and its effect on the audience.Question 5: Analyzing Style and ToneExamine the following poem and discuss the poet's style and tone.```Upon the canvas of the sky,The sun sets low, a fiery sigh.A whisper of the day's retreat,In hues of rose and shades of wheat.The world below, in slumber lies,As stars prepare to fill the skies.A tranquil peace, the night bestows,In quietude, the world reposes.```Instructions:- Describe the poet's use of imagery and sensory language. - Analyze the tone of the poem and how it contributes to the overall mood.- Discuss the poet's choice of words and their impact on the reader's experience.Note: For each question, provide a concise analysis that directly addresses the instructions given. Remember to support your points with specific examples from the text.。
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75 ADTHE COMPARISON OF NUMA WITH LYCURGUSby Plutarchtranslated by John DrydenHAVING thus finished the lives of Lycurgus and Numa, we shall now, though the work be difficult, put together their points ofdifference as they lie here before our view. Their points oflikeness are obvious; their moderation, their religion, their capacity of government and discipline, their both deriving their laws and constitutions from the gods. Yet in their common glories there are circumstances of diversity; for first Numa accepted and Lycurgus resigned a kingdom; Numa received without desiring it, Lycurgus had it and gave it up; the one from a private person and a stranger was raised by others to be their king; the other from the condition of a prince voluntarily descended to the state of privacy. It wasglorious to acquire a throne by justice, yet more glorious to prefer justice before a throne; the same virtue which made the one appear worthy of regal power exalted the other to the disregard of it. Lastly, as the musicians tune their harps, so the one let down the high-flown spirits of the people at Rome to a lower key, as theother screwed them up at Sparta to a higher note, when they were sunken low by dissoluteness and riot. The harder task was that of Lycurgus; for it was not so much his business to persuade his citizens to put off their armour or ungird their swords, as to cast awaytheir gold or silver, and abandon costly furniture and rich tables; nor was it necessary to preach to them, that, laying aside their arms, they should observe the festivals, and sacrifice to the gods, but rather, that, giving up feasting and drinking, they should employtheir time in laborious and martial exercises; so that while the one effected all by persuasions and his people's love for him, theother, with danger and hazard of his person, scarcely in the end succeeded. Numa's muse was a gentle and loving inspiration, fitting him well to turn and soothe his people into peace and justice out of their violent and fiery tempers; whereas, if we must admit the treatment of the Helots to be a part of Lycurgus's legislation, a most cruel and iniquitous proceeding, we must own that Numa was by agreat deal the more humane and Greek-like legislator, granting even to actual slaves a licence to sit at meat with their masters at the feast of Saturn, that they also might have some taste and relish of thesweets of liberty. For this custom, too, is ascribed to Numa, whose wish was, they conceive, to give a place in the enjoyment of the yearly fruits of the soil to those who had helped to produce them. Others will have it to be in remembrance of the age of Saturn, when there was no distinction between master and slave, but all lived as brothers and as equals in a condition of equality.In general, it seems that both aimed at the same design andintent, which was to bring their people to moderation and frugality; but of other virtues, the one set his affection most on fortitude, and the other on justice; unless we will attribute their different ways to the different habits and temperaments which they had to work upon by their enactments; for Numa did not out of cowardice or fear affect peace, but because he would not be guilty of injustice; nor did Lycurgus promote a spirit of war in his people that they might do injustice to others, but that they might protect themselves by it.In bringing the habits they formed in their people to a just and happy mean, mitigating them where they exceeded, and strengthening them where they were deficient, both were compelled to make great innovations. The frame of government which Numa formed wasdemocratic and popular to the last extreme, goldsmiths andflute-players and shoemakers constituting his promiscuous,many-coloured commonalty. Lycurgus was rigid and aristocratical, banishing all the base and mechanic arts to the company of servants and strangers, and allowing the true citizens no implements but the spear and shield, the trade of war only, and the service of Mars,and no other knowledge or study, but that of obedience to their commanding officers, and victory over their enemies. Every sort of money-making was forbid them as freemen; and to make them thoroughly so and keep them so through their whole lives, every conceivable concern with money was handed over, with the cooking and the waiting at table, to slaves and helots. But Numa made none of these distinctions; he only suppressed military rapacity, allowing free scope to every other means of obtaining wealth; nor did he endeavour to do away with inequality in this respect, but permitted riches to be amassed to any extent, and paid no attention to the gradual and continual augmentation and influx of poverty; which it was his business at the outset, whilst there was no great disparity in the estates of men, and whilst people still lived much in one manner, to obviate, as Lycurgus did, and take measures of precaution againstthe mischiefs of avarice, mischiefs not of small importance, but the real seed and first beginning of all the great and extensive evilsof after-times. The re-division of estates, Lycurgus is not, itseems to me, to be blamed for making, nor Numa for omitting; this equality was the basis and foundation of the one commonwealth; butat Rome, where the lands had been lately divided, there was nothing to urge any re-division or any disturbance of the first arrangement, which was probably still in existence.With respect to wives and children, and that community which both, with a sound policy, appointed, to prevent all jealousy, their methods, however were different. For when a Roman thought himself to have a sufficient number of children, in case his neighbour who had none should come and request his wife of him, he had a lawful power to give her up to him who desired her, either for a certain time, orfor good. The Lacedaemonian husband, on the other hand, might allow the use of his wife to any other that desired to have children by her, and yet still keep her in his house, the original marriageobligation still subsisting as at first. Nay, many husbands, as we have said, would invite men whom they thought likely to procure them fine and good-looking children into their houses. What is the difference, then, between the two customs? Shall we say that the Lacedaemonian system is one of an extreme and entire unconcern about their wives, and would cause most people endless disquiet and annoyance with pangs and jealousies? the Roman course wears an airof a more delicate acquiescence, draws the veil of a new contract over the change, and concedes the general insupportableness of mere community? Numa's directions, too, for the care of young women, are better adapted to the female sex and to propriety; Lycurgus's are altogether unreserved and unfeminine, and have given a great handle to the poets, who call them (Ibycus, for example) Phoenomerides,bare-thighed; and give them the character (as does Euripides) of being wild after husbands-"These with the young men from the house go out,With thighs that show, and robes that fly about."For in fact the skirts of the frock worn by unmarried girls were not sewn together at the lower part, but used to fly back and show the whole thigh bare as they walked. The thing is most distinctly given by Sophocles-"-She, also, the young maid,Whose frock, no robe yet o'er it laid,Folding back, leaves her bare thigh free,Hermione."And so their women, it is said, were bold and masculine, overbearing to their husbands in the first place, absolute mistresses in their houses, giving their opinions about public matters freely, andspeaking openly even on the most important subjects. But the matrons, under the government of Numa, still indeed received fromtheir husbands all that high respect and honour which had been paid them under Romulus as a sort of atonement for the violence done to them; nevertheless, great modesty was enjoined upon them; all busy intermeddling forbidden, sobriety insisted on, and silence made habitual. Wine they were not to touch at all, nor to speak, exceptin their husband's company, even on the most ordinary subjects. Sothat once when a woman had the confidence to plead her own cause ina court of judicature, the senate, it is said, sent to inquire ofthe oracle what the prodigy did portend; and, indeed, their general good behaviour and submissiveness is justly proved by the record of those that were otherwise; for as the Greek historians record in their annals the names of those who first unsheathed the sword of civil war, or murdered their brothers, or were parricides, or killed their mothers, so the Roman writers report it as the first example, that Spurius Carvilius divorced his wife, being a case that never before happened, in the space of two hundred and thirty years from the foundation of the city; and that one Thalaea, the wife of Pinarius, had a quarrel (the first instance of the kind) with her mother-in-law, Gegania, in the reign of Tarquinius Superbus; so successful was the legislator in securing order and good conduct in the marriage relation. Their respective regulations for marrying the young women are in accordance with those for their education. Lycurgus made them brides when they were of full age and inclination for it. Intercourse, where nature was thus consulted, would produce, he thought, love and tenderness, instead of the dislike and fear attending an unnatural compulsion; and their bodies, also, would be better able to bear the trials of breeding and of bearing children, in his judgment the one end of marriage.The Romans, on the other hand, gave their daughters in marriage as early as twelve years old, or even under; thus the thought their bodies alike and minds would be delivered to the future husband pure and undefiled. The way of Lycurgus seems the more natural with aview to the birth of children; the other, looking to a life to be spent together, is more moral. However, the rules which Lycurgusdrew up for superintendence of children, their collection into companies, their discipline and association, as also his exact regulations for their meals, exercises, and sports, argue Numa no more than an ordinary lawgiver. Numa left the whole matter simply to be decided by the parent's wishes or necessities; he might, if he pleased, make his son a husbandman or carpenter, coppersmith or musician; as if it were of no importance for them to be directed and trained up from the beginning to one and the same common end, or asthough it would do for them to be like passengers on shipboard, brought thither each for his own ends and by his own choice, uniting to act for the common good only in time of danger upon occasion of their private fears, in general looking simply to their own interest. We may forbear, indeed, to blame common legislators, who may be deficient in power or knowledge. But when a wise man like Numa had received the sovereignty over a new and docile people, was there anything that would better deserve his attention than the education of children, and the training up of the young, not to contrariety and discordance of character, but to the unity of the common model of virtue, to which from their cradle they should have been formed and moulded? One benefit among many that Lycurgus obtained by his course was the permanence which it secured to his laws. The obligation of oaths to preserve them would have availed but little, if he had not, by discipline and education, infused them into the children's characters, and imbued their whole early life with a love of his government. The result was that the main points and fundamentals of his legislation continued for above five hundred years, like some deep and thoroughly ingrained tincture, retaining their hold upon the nation. But Numa's whole design and aim, the continuance of peaceand goodwill, on his death vanished with him; no sooner did heexpire his last breath than the gates of Janus's temple flew wide open, and, as if war had, indeed, been kept and caged up withinthose walls, it rushed forth to fill all Italy with blood and slaughter; and thus that best and justest fabric of things was of no long continuance, because it wanted that cement which should have kept all together, education. What, then, some may say, has not Rome been advanced and bettered by her wars? A question that will need a long answer, if it is to be one to satisfy men who take the better to consist in riches, luxury, and dominion, rather than in security, gentleness, and that independence which is accompanied by justice. However, it makes much for Lycurgus, that, after the Romans had deserted the doctrine and discipline of Numa, their empire grew and their power increased so much; whereas so soon as the Lacedaemonians fell from the institutions of Lycurgus, they sank from the highestto the lowest state, and, after forfeiting their supremacy over the rest of Greece, were themselves in danger of absolute extirpation. Thus much, meantime, was peculiarly signal and almost divine in the circumstances of Numa, that he was an alien, and yet courted to come and accept a kingdom, the frame of which though he entirely altered, yet he performed it by mere persuasion, and ruled a city that as yet had scarce become one city, without recurring to arms or anyviolence (such as Lycurgus used, supporting himself by the aid ofthe nobler citizens against the commonalty), but, by mere force ofwisdom and justice, established union and harmony amongst all. THE END。