2018年可锐考研英语阅读专练模拟题
2018年可锐考研英语经典阅读试题
2018年可锐考研英语经典阅读试题（一）[经济学类]Recent years have brought minority-owned businesses in the United States unprecedented opportunities —as well as new and significant risks. Civil rights activists have long argued that one of the principal reasons why Blacks, Hispanics, and other minority groups have difficulty establishing themselves in business is that they lack access to the sizable orders and subcontracts that are generated by large companies. Now Congress, in apparent agreement, has required by law that businesses awarded federal contracts of more than $500,000 do their best to find minority subcontractors and record their efforts to do so on forms filed with the government. Indeed, some federal and local agencies have gone so far as to set specific percentage goals for apportioning parts of public works contracts to minority enterprises.Corporate response appears to have been substantial. According to figures collected in 1977, the total of corporate contracts with minority businesses rose from $77 million in 1972 to $1.1 billion in 1977. The projected total of corporate contracts with minority businesses for the early 1980’s is estimated to be over 53 billion per year with no letup anticipated in the next decade.Promising as it is for minority businesses, this increased patronage poses dangers for them, too. First, minority firms risk expanding too fast and overextending themselves financially, since most are small concerns and, unlike large businesses, they often need to make substantial investments in new plants, staff, equipment, and the like in order to perform work subcontracted to them. If, thereafter, their subcontracts are for some reason reduced, such firms can face potentially crippling fixed expenses. The world of corporate purchasing can be frustrating for small entrepreneurs who get requests for elaborate formal estimates and bids. Both consume valuable time and resources, and a small company’s efforts must soon result in orders, or both the morale and the financial health of the business will suffer.A second risk is that White-owned companies may seek to cash in on the increasing apportionments through formation of joint ventures with minority-owned concerns. Of course, in many instances there are legitimate reasons for joint ventures; clearly, White and minority enterprises can team up to acquire business that neither could acquire alone. But civil rights groups and minority business owners have complained to Congress about minorities being set up as “fronts”with White backing, rather than being accepted as full partners in legitimate joint ventures.Third, a minority enterprise that secures the business of one large corporate customer often run the danger of becoming- and remaining-dependent. Even in the best of circumstances, fierce competition from larger, more established companies makes it difficult for small concerns to broaden their customer bases: when such firms have nearly guaranteed orders from a single corporate benefactor, they may truly have to struggle against complacency arising from their current success.1. The primary purpose of the text is to[A] present a commonplace idea and its inaccuracies.[B] describe a situation and its potential drawbacks.[C] propose a temporary solution to a problem.[D] analyze a frequent source of disagreement.2. The text suggests that the failure of a large business to have its bids for subcontracts result quickly in orders might causes it to[A] experience frustration but not serious financial harm.[B] face potentially crippling fixed expenses.[C] have to record its efforts on forms filed with the government.[D] increase its spending with minority subcontractors.3. It can be inferred from the text that, compared with the requirements of law, the percentage goals set by “some federal and local agencies”are[A] more popular with large corporations.[B] more concrete.[C] less controversial.[D] less expensive to enforce.4. Which of the following, if true, would most weaken the author’s assertion that, in the 1970’s, corporate response to federal requirements was substantial?[A] Corporate contracts with minority-owned businesses totaled $2 billion in 1979.[B] Between 1970 and 1972, corporate contracts with minority-owned businesses declined by 25 percent.[C] The figures collected in 1977 underrepresented the extent of corporate contracts with minority-owned businesses.[D] The $1.1 billion represented the same percentage of total corporate spending in 1977 asdid $77 million in 1972.5. The author would most likely agree with which of the following statements about corporate response to working with minority subcontractors?[A] Annoyed by the proliferation of “front”organizations, corporations are likely to reduce their efforts to work with minority-owned subcontractors in the near future.[B] Although corporations showed considerable interest in working with minority businesses in the 1970’s, their aversion to government paperwork made them reluctant to pursue many government contracts.[C] The significant response of corporations in the 1970’s is likely to be sustained and conceivably be increased throughout the 1980’s.[D] Although corporations are eager to cooperate with minority-owned businesses, a shortage of capital in the 1970’s made substantial response impossible.二．The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centuries. How such large creatures, which weighed in some cases as much as a piloted hang-glider and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly what these creatures were —reptiles or birds —are among the questions scientists have puzzled over.Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls, pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a winglike membrane. The other fingers were short and reptilian, with sharpclaws. In birds the second finger is the principal strut of the wing, which consists primarily of feathers. If the pterosaurs walked on all fours, the three short fingers may have been employed for grasping. When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V shape along each side of the animal’s body.The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not surprising because the design of any flying vertebrate is subject to aerodynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents a savings in weight. In the birds, however, these bones are reinforced more massively by internal struts.Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T. H. Huxley reasoned that flying vertebrates must have been warm-blooded because flying implies a high rate of metabolism, which in turn implies a high internal temperature. Huxley speculated that a coatof hair would insulate against loss of body heat and might streamline the body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and relatively thick hairlike fossil material was the first clear evidence that his reasoning was correct.Efforts to explain how the pterosaurs became airborne have led to suggestions that they launched themselves by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaurs’hind feet resembled a bat’s and could serve as hooks by which the animal could hang in preparation for flight. The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings. The third calls for high waves to channel updrafts. The wind that made such waves however, might have been too strong for the pterosaurs to control their flight once airborne.1. It can be inferred from the text that scientist now generally agree that the[A] enormous wingspan of the pterosaurs enabled them to fly great distances.[B] structure of the skeleton of the pterosaurs suggests a close evolutionary relationship to bats.[C] fossil remains of the pterosaurs reveal how they solved the problem of powered flight.[D] pterosaurs were reptiles.2. The author views the idea that the pterosaurs became airborne by rising into light winds created by waves as[A] revolutionary.[B] unlikely.[C] unassailable.[D] probable.3. According to the text, the skeleton of a pterosaur can be distinguished from that of a bird by the[A] size of its wingspan.[B] presence of hollow spaces in its bones.[C] anatomic origin of its wing strut.[D] presence of hooklike projections on its hind feet.4. The ideas attributed to T. H. Huxley in the text suggest that he would most likely agree with which of the following statements?[A] An animal’s brain size has little bearing on its ability to master complex behaviors.[B] An animal’s appearance is often influenced by environmental requirements and physical capabilities.[C] Animals within a given family group are unlikely to change their appearance dramatically over a period of time.[D] The origin of flight in vertebrates was an accidental development rather than the outcome of specialization or adaptation.5. Which of the following best describes the organization of the last paragraph of the text?[A] New evidence is introduced to support a traditional point of view.[B] Three explanations for a phenomenon are presented and each is disputed by means of specific information.[C] Three hypotheses are outlined and evidence supporting each is given.[D] Recent discoveries are described and their implications for future study are projected.。
2018考研英语阅读理解模拟试题及答案
2018考研英语阅读理解模拟试题及答案阅读理解是考研英语的必考题型，考生一定要加以重视，多做模拟试题巩固知识。
今天，店铺准备了2018考研英语阅读理解模拟试题，以供考生练习。
2018考研英语阅读理解模拟试题：【原文】Depending on whom you ask， the experiment announced at a Texas medical conference last week was a potential breakthrough for infertile women， a tragic failure or a dangerous step closer to the nightmare scenario of human cloning.There's truth to all these points of view. Infertility was clearly the motivation when Chinese doctors used a new technique to help one of their countrywomen get pregnant. Unlike some infertile women，the 30-year-old patient produced eggs just fine，and those eggs could be fertilized by sperm. But they never developed properly， largely because of defects in parts of the egg outside the fertilized nucleus. So using a technique developed by Dr. James Grifo at New York University，Dr. Zhuang Guanglun of Sun Yat-sen University in Guangzhou took the patient's fertilized egg，scooped out the chromosome-bearing nuclear material and put it in a donated egg whose nucleus had been removed. In this more benign environment，development proceeded normally，and the woman became pregnant with triplets who carried a mix of her DNA and her husband's——pretty much like any normal baby.What has some doctors and ethicists upset is that this so-called nuclear-transfer technique has also been used to produce clones，starting with Dolly the sheep. The only significant difference is that with cloning， the inserted nucleus comes froma single，usually adult，cell，and the resulting offspring is genetically identical to the parent. Doing that with humans is ethically repugnant to many. Besides， for reasons that aren't yet well understood， cloned animals often abort spontaneously or are born with defects; Dolly died very young， though she had seemed healthy. And because the Chinese woman's twins were born prematurely and died (the third triplet was removed early on to improve chances for the remaining two)，critics have suggested that cloning and nuclear transfer are equally risky for humans.Not likely，says Grifo. “The obstetric outcome was a disaster，” he admits，“but the embryos were chromosomally normal. We have no evidence that it had anything to do with the procedure.” Even so， concern over potential risks is why the Food and Drug Administration created a stringent approval process for such research in 2001——a process that Grifo found so onerous that he stopped working on the technique and gave it to the researchers in China， where it was subsequently banned (but only this month，long after Zhuang's patient became pregnant)。
2018年可锐考研第一轮复习之英语阅读
2018年可锐考研第一轮复习之英语阅读（一）Until about five years ago, the very idea that peptide hormonesmight be made anywhere in the brain besides the hypothalamus was astounding.Peptide hormones, scientists thought, were made by endocrine glands and thehypothalamus was thought to be the brains’only endocrinegland. What is more, because peptide hormones cannot cross the blood-brainbarrier, researchers believed that they never got to any part of the brainother than the hypothalamus, where they were simply produced and then releasedinto the bloodstream. But these beliefs about peptide hormones were questioned aslaboratory after laboratory found that antiserums to peptide hormones, wheninjected into the brain, bind in places other than the hypothalamus, indicatingthat either the hormones or substances that cross-react with the antiserums arepresent. The immunological method of detecting peptide hormones by means ofantiserums, however, is imprecise. Cross-reactions are possible and this methodcannot determine whether the substances detected by the antiserums really arethe hormones, or merely close relatives. Furthermore, this method cannot beused to determine the location in the body where the detected substances areactually produced. New techniques of molecular biology, however, provide a way toanswer these questions. It is possible to make specific complementary DNA’s that canserve as molecular probes seek out the messenger RNA’s of thepeptide hormones. If brain cells are making the hormones, the cells will containthese mRNA’s. If the products the brain cells make resemble the hormones butare not identical to them, then the c DNA’s should still bindto these mRNA’s, but should not bind as tightly as they would to m RNA’s for thetrue hormones. The cells containing these mRNA’s can then beisolated and their mRNA’s decoded to determine just what their protein products are and howclosely the products resemble the true peptide hormones. The molecular approach to detecting peptide hormones using cDNAprobes should also be much faster than the immunological method because it cantake years of tedious purifications to isolate peptide hormones and thendevelop antiserums to them. Roberts, expressing the sentiment of manyresearchers, states: “I was trained as an endocrinologist. But it became clear to me thatthe field of endocrinology needed molecular biology input. The process ofgrinding out protein purifications is just too slow.”If, as the initial tests with cDNA probes suggest, peptide hormonesreally are made in brain in areas other than the hypothalamus, a theory must bedeveloped that explains their function in the brain. Some have suggested thatthe hormones are all growth regulators, but Rosen’s work on rat brainsindicates that this cannot be true. A number of other researchers propose thatthey might be used for intercellular communication in the brain.1.Which of the following titles best summarizes the text?[A] Is Molecular Biology the Key to Understanding Intercellular Communicationin the Brain?[B] Molecular Biology: Can Researchers Exploit Its Techniques to SynthesizePeptide Hormones?[C] The Advantages and Disadvantages of the Immunological Approach to DetectingPeptide Hormones. [D] Peptide Hormones: How Scientists Are Attempting to Solve Problems of TheirDetection and to Understand Their Function?2.The text suggests that a substance detected in the brain by use of antiserumsto peptide hormones may [A] have been stored in the brain for a long period of time. [B]play no role in the functioning of the brain. [C] have been produced in some part of the body other than the brain. [D] have escaped detection by molecular methods.3.According to the text, confirmation of the belief that peptide hormones arecreated in the brain in areas other than the hypothalamus would forcescientists to [A] reject the theory that peptide hormones are made by endocrine glands. [B] revise their beliefs about the ability of antiserums to detect peptidehormones. [C] invent techniques that would allow them to locate accurately brain cellsthat produce peptide hormones. [D] develop a theory that account for the role played by peptide hormones inthe brain.4.Which of the following is mentioned in the text as a drawback of theimmunological method of detecting peptide hormones? [A] It cannot be used to detect the presence of growth regulators in the brain. [B] It cannot distinguish between the peptide hormones and substances that arevery similar to them. [C] It uses antiserums that are unable to cross the blood-brain barrier. [D] It involves a purification process that requires extensive training inendocrinology.5.The idea that the field of endocrinology can gain from developments inmolecular biology is regarded by Roberts with [A] incredulity. [B] derision. [C] indifference.[D] enthusiasm.[答案与考点解析]1.【答案】D 【考点解析】这是一道中心主旨题。
2018年可锐考研英语复习阅读练习题
2018年可锐考研英语复习阅读练习题（五）The eradication of poverty is a shared responsibility for the international community—indeed，a moral imperative.This task has become no less urgent in the last decade，in spite of rapid economic growth in many parts of the world.While the percentage of the world‘s population living on less than $1 per day has fallen from 28.3%to 24.0%between 1987 and 1998，population growth has kept the absolute number of poor steady at some 1.2 billion.If we take a higher cutoff point of $2 per day，the poor have increased by 250 million over the same time period，encompassing 2.8 billion people，or almost half of the world’s population.Nor do World Bank projections lend undivided hope for the future.Under the“business as usual”scenario，the number of poor on the $1 per day scale will not change during the projection period up to 2008.However，should policy measures be taken to boost economic growth and make the growth process more inclusive to the poor，the World Bank reckons that 500 million people could be brought out of extreme poverty by 2008.Even under this more optimistic scenario，Latin America and the Caribbean，and especially Sub-Saharan Africa would see little，if any，progress.The same pattern emerges under the higher cutoff point of $2 per day. In the light of these dire statistics and projections，it is easy to appreciate the growing public concern that not enough is being done to address poverty and poverty-related social illnesses，such as poor work conditions，a lack of respect for human rights，and natural resource degradation.Indeed，such concerns have been vented with increasing frustration，including at the Ministerial Conference of the WTO in Seattle last year，and more recently at the joint spring meeting of the IMF and the World Bank. One problem facing governments in poverty-stricken countries，civil society，and international organizations is that poverty is a multidimensional problem with no simple solution—not least because of its sheer scale.The causes and expressions of poverty are not the same everywhere，although some common terms can often be found，including a lack of access to education，basic health care，and unequal distribution of productive assets。
2018年可锐考研英语模拟试题及答案解析
2018年可锐考研英语模拟试题及答案解析（二）Section I Use of LanguageDirections:Read the following text. Choose the best word(S) for each numbered blank and mark A, B ,C or D on ANSWER SHEET. (10 Points)As many people hit middle age, they often start to notice that their memory and mental clarity are not what they used to be. We suddenly can't remember 1 we put the keys just a moment ago, or an old acquaintance's name, or the name of an old band we used to love. As the brain 2 , we refer to these occurrences as "senior moments." 3 seemingly innocent, this loss of mental focus can potentially have a(an) 4 impact on our professional, social, and personal 5 .Neuroscientists, experts who study the nervous system, are increasingly showing that there's actually a lot that can be done. It 6 out that the brain needs exercise in much the same way our muscles do, and the right mental 7 can significantly improve our basic cognitive 8 . Thinking is essentially a 9 of making connections in the brain. To a certain extent, our ability to 10 in making the connections that drive intelligence is inherited. 11 , because these connections are made through effort and practice, scientists believe that intelligence can expand and fluctuate 12 mental effort.Now, a new Web-based company has taken it a step 13 and developed the first "brain training program" designed to actually help people improve and regain their mental 14 .The Web-based program 15 you to systematically improve your memory and attention skills. The program keeps 16 of your progress and provides detailed feedback 17 your performance and improvement. Most importantly, it 18 modifies and enhances the games you play to 19 on the strengths you are developing--much like a(n) 20 exercise routine requires you to increase resistance and vary your muscle use.1.[A]where [B]when [C]that [D]why2.[A]improves [B]fades [C]recovers [D]collapses3.[A]If [B]Unless [C]Once [D]While4.[A]uneven [B]limited [C]damaging [D]obscure5.[A]wellbeing [B]environment [C]relationship [D]outlook6.[A]turns [B]finds [C]points [D]figures7.[A]roundabouts [B]responses [C]workouts [D]associations8.[A]genre [B]functions [C]circumstances [D]criterion9.[A]channel [B]condition [C]sequence [D]process10.[A]persist [B]believe [C]excel [D]feature11.[A]Therefore [B]Moreover [C]Otherwise [D]However12.[A]according to [B]regardless of [C]apart from [D]instead of13.[A]back [B]further [C]aside [D]around14.[A]sharpness [B]stability [C]framework [D]flexibility15.[A]forces [B]reminds [C]hurries [D]allows16.[A]hold [B]track [C]order [D]pace17.[A] to [B]with [C]for [D]on18.[A]irregularly [B]habitually [C]constantly [D]unusually19.[A]carry [B]put [C]build [D]take20.[A]risky [B]effective [C]idle [D]familiar答案：1-5 ABDCA6-10 ACBDC11-15 DABAD16-20 BDCCB1. [标准答案] [A][考点分析] 上下文语义和连词辨析[选项分析] 本题考查连词。
2018年考研英语阅读模拟题及答案【八篇】
【导语】想要考研阅读题多拿分，就需要多做练习。
以下是为⼤家整理的《2018年考研英语阅读模拟题及答案【⼋篇】》供您查阅。
【第⼀篇】At 18， Ashanthi DeSilva of suburban Cleveland is a living symbol of one of the great intellectual achievements of the 20th century. Born with an extremely rare and usually fatal disorder that left her without a functioning immune system (the “bubble-boy disease，” named after an earlier victim who was kept alive for years in a sterile plastic tent)， she was treated beginning in 1990 with a revolutionary new therapy that sought to correct the defect at its very source， in the genes of her white blood cells. It worked. Although her last gene-therapy treatment was in 1992， she is completely healthy with normal immune function， according to one of the doctors who treated her， W. French Anderson of the University of Southern California. Researchers have long dreamed of treating diseases from hemophilia to cancer by replacing mutant genes with normal ones. And the dreaming may continue for decades more. “There will be a gene-based treatment for essentially every disease，” Anderson says， “within 50 years.” It's not entirely clear why medicine has been so slow to build on Anderson's early success. The National Institutes of Health budget office estimates it will spend $432 million on gene-therapy research in 2005， and there is no shortage of promising leads. The therapeutic genes are usually delivered through viruses that don't cause human disease. “The virus is sort of like a Trojan horse，” says Ronald Crystal of New York Presbyterian/Weill Cornell Medical College. “The cargo is the gene.” At the University of Pennsylvania's Abramson Cancer Center， immunologist Carl June recently treated HIV patients with a gene intended to help their cells resist the infection. At Cornell University， researchers are pursuing gene-based therapies for Parkinson's disease and a rare hereditary disorder that destroys children's brain cells. At Stanford University and the Children's Hospital of Philadelphia， researchers are trying to figure out how to help patients with hemophilia who today must inject themselves with expensive clotting drugs for life. Animal experiments have shown great promise. But somehow， things get lost in the translation from laboratory to patient. In human trials of the hemophilia treatment，patients show a response at first， but it fades over time. And the field has still not recovered from the setback it suffered in 1999， when Jesse Gelsinger， an 18-year-old with a rare metabolic disorder， died after receiving an experimental gene therapy at the University of Pennsylvania. Some experts worry that the field will be tarnished further if the next people to benefit are not patients but athletes seeking an edge. This summer， researchers at the Salk Institute in San Diego said they had created a “marathon mouse” by implanting a gene that enhances running ability; already， officials at the World Anti-Doping Agency are preparing to test athletes for signs of “gene doping.” But the principle is the same， whether you're trying to help a healthy runner run faster or allow a muscular-dystrophy patient to walk. “Everybody recognizes that gene therapy isa very good idea，” says Crystal. “And eventually it's going to work.” 1. The case of Ashanthi Desilva is mentioned in the text to ____________. [A] show the promise of gene-therapy [B] give an example of modern treatment for fatal diseases [C] introduce the achievement of Anderson and his team [D] explain how gene-based treatment works 2. Anderson‘s early success has ________________. [A] greatly speeded the development of medicine [B] brought no immediate progress in the research of gene-therapy [C] promised a cure to every disease [D] made him a national hero 3. Which of the following is true according to the text? [A] Ashanthi needs to receive gene-therapy treatment constantly. [B] Despite the huge funding， gene researches have shown few promises. [C] Therapeutic genes are carried by harmless viruses. [D] Gene-doping is encouraged by world agencies to help athletes get better scores. 4. The word “tarnish” (line 5， paragraph 4) most probably means ____________. [A] affect [B] warn [C] trouble [D] stain 5. From the text we can see that the author seems ___________. [A] optimistic [B] pessimistic [C] troubled [D] uncertain 答案：A B C D A【第⼆篇】According to psychologists(⼼理学家), an emotion is aroused when a man or animal views something as either bad or good. When a person feels like running away from something he thinks will hurt him, we call this emotion fear. if the person wants to remove the danger by attacking it, we call the emotion anger. The emotions of joy and love are aroused when we think something can help us. An emotion does not have to be created by something in the outside world. it can be created by a person's thoughts. Everyone has emotions. Many psychologists believe that infants are born without emotions. They believe children learn emotions just as they learn to read and write. A growing child not only learns his emotions but learns how to act in certain situations because of an emotion. Psychologists think that there are two types of emotion: positive and negative. Positive emotions include love, liking, joy, delight, and hope. They are aroused by something that appeals to a person. Negative emotions make a person unhappy or dissatisfied. They include anger, fear,despair, sadness, and disgust. in growing up, a person learns to cope with the negative emotions in order to be happy. Emotions may be weak or strong. Some strong emotions are so unpleasant that a person will try any means to escape from them. in order to feel happy, the person may choose unusual ways to avoid the emotion. Strong emotions can make it hard to think and to solve problems. They may prevent a person from learning or paying attention to what he is doing. For example, a student taking an examination may be so worried about failing that he cannot think properly. The worry drains valuable mental energy he needs for the examination. 56. We learn from the passage that an emotion is created by something___________. A)one thinks bad or good B)one feels in danger C)one faces in the outside world D)one tries to escape from real life 57. Which of the following is NOT true? A)Children learn emotions as they grow up. B)Babies are born with emotions. C)Emotions fall into two types in general. D)People can cope with the negative emotions in life. 58. The author's purpose of writing this passage is to___________. A) explain why people have emotions B) show how people avoid the negative emotions C) explain what people should do before emotions D) define and classify people's emotions 59. We can safely conclude that a student may fail in an exam if___________. A) he can not think properly B) he can't pay attention to it C) he can't pay attention to it D) he is not full of energy 60. As used in the last sentence, the word drains means___________. A) stops B) ties C) weakens D) flows gradually 答案1.A2.B3.D4.B5.C【第三篇】。
2018年可锐考研英语阅读专项练习
2018年可锐考研英语阅读专项练习（二）Thanks to slumping markets, investment banks are shedding many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such pesky costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stockmarket crash on computers instructed with simple decision-making rules. But robots can be smarter than that.Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve genetically , and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff’s artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction. One well-known type is the English auction, familiar to patrons of the salesrooms of Christie’s and Sotheby’s, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.At the other extreme is the Dutch auction, familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds. Here, buyers remain silent, and a seller reduces his price until it is accepted. Most markets for shares, commodities, foreign exchange and derivatives are a hybrid of these two types: buyers and sellers can announce their bid or offer prices at any time, and deals are constantly being closed, a so-called continuous double auction .Mr Cliff’s novel idea was to apply his evolutionary computer programs to marketplaces themselves. Why not, he thought, try and see what types of auction would let traders converge most quickly towards an equilibrium price? The results were surprising. In his models, auctions that let buyers and sellers bid at any time like most of today’s financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers. These evolved auctions also withstood big market shocks, such as crashes and panics, better than today’s real-world versions. Mr Cliff’s most recent results, which will be presented in Sydney, Australia, on December 10th, show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers. Bank of America has been investigating these new auctions, along with robotic traders, for possible use in electronic exchanges. The hope is that today’s financial auctions and online marketplaces might work better by becoming more like their English and Dutch forebears. But what to call such multi-ethnic hybrids? Here’s introducing the Cliffhanger .1. The passage is mainly__________.A. a review of two kinds of auctionsB. an introduction of trading robotsC. a survey of the trading marketD. about trading alternatives2. Which of the following is true according to the text?A. David’s robot traders have now been used in real-world markets.B. Robot traders can evolve like creatures.C. There is room for improvement in efficiency in trading markets.D. The English auction is the most popular trading form.3. If you were trading American Treasury bonds, you would most likely take the trading form of ___________.A. the English auctionB. the continuous double auctionC. the Dutch auctionD. the evolved auction4. We can infer from the text that______________.A. existing auctions can not withstand market shocksB. the Dutch auction is better than the continuous double auctionC. it’s hard for traders to reach an equilibrium priceD. the best type of auction takes place when the number of the buyers is equal to that of sellers5. Toward robot traders, the writer’s attitude can be said to be__________.A. biasedB. objectiveC. pessimisticD. OptimisticOpen-outcry trading is supposed to be a quaint, outdated practice, rapidly being replaced by sleeker, cheaper electronic systems. Try telling that to the New York Mercantile Exchange , the world’s largest commodities exchange. On November 1st the NYMEX opened an open-outcry pit in Dublin to handle Brent crude futures, the benchmark contract for pricing two-thirds of the world’s oil.The NYMEX is trying to snatch liquidity from London’s International Petroleum Exchange , which trades the most Brent contracts; the New York exchange has hitherto concentrated on West Texas Intermediate, an American benchmark grade. The new pit is a response to the IPE’s efforts to modernise. On the same day as NYMEX traders started shouting Brent prices in Dublin, the IPE did away with its morning open-outcry session: now such trades must be electronic, or done in the pit after lunch.The New York exchange claims that customers, such as hedge funds or energy companies, prefer open-outcry because it allows for more liquidity. Although most other exchanges are heading in the opposite direction, in commodity markets such as the NYMEX, pressure from locals --self-employed traders--is helping to prop up open-outcry, although some reckon that customers pay up to five times as much as with electronic systems. Even the IPE has no plans to abolish its floor. Only last month it signed a lease, lasting until 2011, for its trading floor in London.Dublin’s new pit is showing promise , says Rob Laughlin, a trader with Man Financial, despite a few technical glitches. On its first day it handled 5,726 lots of Brent , over a third of the volume in the IPE’s new morning electronic session. By the year’s end, predicts Mr Laughlin, it should be clear whether the venture will be viable. It would stand a better chance if it moved to London. It may yet: it started in Ireland because regulatory approval could be obtained faster there than in Britain.Ultimately, having both exchanges offering similar contracts will be unsustainable. Stealing liquidity from an established market leader, as the NYMEX is trying to do, is a hard task. Eurex, Europe’s largest futures exchange, set up shop in Chicago this year, intending to grab American Treasury-bond contracts from the Chicago Board of Trade. It has made little headway. And the NYMEX has dabbled in Brent contracts before, without success.Given the importance of liquidity in exchanges, why do the IPE and the NYMEX not band together? There have been merger talks before, and something might yet happen. Some say thatthe freewheeling NYMEX and the more staid IPE could never mix. For now, in any case, the two exchanges will slug it out--across the Irish Sea as well as across the Atlantic.1. The NYMEX and IPE are___________.A. both using open outcry trading as a major trading formB. partners that are reciprocal in their business activitiesC. rivals that are competing in the oil trading marketD. both taking efforts to modernize their trading practice2. According to the author, one of the reasons that the NYMEX takes open-outcry trading is__________.A. the preference of its customersB. the standard practice of energy exchangeC. the long tradition of this trading practiceD. the nostalgic feeling it arouses3. The word glitches most probably means_________.A. backwardnessB. disappointmentsC. engineersD. problems4. From Paragraph 4 we can infer that_________.A. trading volume in the IPE’s new morning electronic session is fallingB. London is a better business location for energy exchanges than DublinC. Britain’s regulators are less efficient than those of IrelandD. the Dublin pit of the NYMEX will be more prosperous next year5. We can draw a conclusion from the text that___________.A. it’s very unlikely that the NYMEX and the IPE could combine their businessesB. the NYMEX will fail in Ireland as many precedents have shownC. the two energy exchanges will figure out a way to cooperate with each otherD. the market environment for both energy exchanges is getting better。
2018考研英语阅读理解模拟试题附答案
2018考研英语阅读理解模拟试题附答案2018参加考研的考生备考英语一定要多做模拟试题来熟悉题型，提高做题的准确率。
今天，店铺准备了2018考研英语阅读理解模拟试题，以供考生练习。
2018考研英语阅读理解模拟试题：【原文】A widely heralded but still experimental cancer-fighting compound may be used someday to prevent two other major killers of Americans：heart disease and stroke. That was the implication of a remarkable report published last week in the journal Circulation by a team of researchers from Dr. Judah Folkman's laboratory at the Children's Hospital in Boston.The versatile compound is endostatin，a human protein that inhibits angiogenesis， the growth of new blood vessels in the body. In tests reported in 1997 by Folkman， a prominent cancer researcher who pioneered the study of angiogenesis， the drug had reduced and even eradicated tumors in laboratory mice. How? By stunting the growth of capillaries necessary for nourishing the burgeoning mouse tumors.When news of Folkman's achievement became widely known last year， it led to wildly exaggerated predictions of imminent cancer cures. When other scientists were initially unable to duplicate those results，questions arose about the validity of Folkman's research. Then in February scientists at the National Cancer Institute， with guidance from Folkman， finally matched his results. Reassured， the N.C.I. gave the go-ahead for clinical trials of endostatin later this year on patients with advanced tumors.How can a drug that is apparently effective against tumors also reduce the risk of heart attack and stroke? The answer lies inthe composition of plaque， the fatty deposit that builds up in arteries and can eventually clog them. Plaque consists of a mix of cholesterol， white blood cells and smooth muscle cells， and as it accumulates， a network of capillaries sprouts from the artery walls to nourish the cells. Could endostatin halt the growth of capillaries and starve the plaque?A Folkman lab team led by Dr. Karen Moulton decided to find out. The scientists put baby lab mice on a 16-week “Western diet” that was high in fat and cholesterol， then measured the plaque buildup on the walls of each aorta， the large artery that carries blood from the heart to the rest of the body. Meanwhile，they injected one group of mice with endostatin， another with a different blood-vessel inhibitor called TNP-470 and a control group with an inert saline solution. Twenty weeks later the researchers again measured plaque in the mouse aortas. The results were startling： the endostatin group averaged 85% less plaque buildup and the TNP-470 group 70% less than those in the control group.All too aware of the premature hopes raised last year after Folkman's tumor report， the researchers have been careful not to oversell the new results. “If this finding is supported in future studies，” says Moulton，“[it could open the way for] treatments that could delay the progression of heart disease and possibly reduce the incidence of heart attacks and strokes.” B ut any such treatments，she stresses，are probably five to 10 years away.注(1)：本文选自Time; 04/19/99， p48;注(2)：本文习题命题模仿对象2004年真题Text 1;2018考研英语阅读理解模拟试题：【题目】1. What did the report indicate?[A]A very important drug is now at experimental stage.[B]Heart disease and stroke are the most serious threats to Americans.[C]The tumor drug can be used for the heart disease in the future.[D]Many Americans suffer from heart disease and stroke.2. Why did the N.C.I. agree to have clinical trials of endostatin on the patients?[A]They were convinced of the Folkman's research.[B]They can do such a research as well as Folkman.[C]The patients with advanced tumors need the drug.[D]The drug should be proved effective on humans.3. The expression “stunting the growth of capillaries”(Line 8， Paragraph 2) most probablymeans _______.[A]help the growth of capillaries[B]limit the growth of capillaries[C]improve the growth of capillaries[D]prevent the growth of capillaries4. Why can the tumor drug be used for the heart?[A]It can accumulate a network of capillaries and nourish the cells.[B]It can stop the growth of capillaries and provide no nourishment for plaque.[C]The curing method of tumor and heart disease is the same.[D]The tumor and heart disease are made up of the same substance.5. Which of the following is true according to the text?[A]Folkman's tumor report had been exaggerated.[B]The tumor drug is not as effective as what has beenexpected.[C]The new results of the research are far more encouraging.[D]Researchers still have a long way to go to make another successful experiment.2018考研英语阅读理解模拟试题：【答案】CADBC。
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2018年可锐考研英语阅读专练模拟题（四）A mysteriousblack cloudapproaches the earth-our planet s weather is severely affected.Throughout the rest of June and July temperatures rose steadily all over the Earth. In the British isles the temperature climbed through the eighties, into the nineties, and moved towards the hundred mark. People complained, but there was no serious disaster.The death number in the U. S. Remained quite small, thanks largely to the air-conditioning units that had been fitted during previous years and months. Temperatures rose to the limit of human endurance throughout the whole country and people were obliged to remain indoors for weeks on end. Occasionally air-conditioning units failed and it was then that fatalities occurred.Conditions were utterly desperate throughout the tropicsas may be judged from the fact that 7943 species of plants and animals became totally extinct. The survival of Man himself was only possible because of the caves and cellarshe was able to dig. Nothing could be done to reduce the hot air temperature. More than seven hundred million persons are known to have lost their lives.Eventually the temperature of the surface waters of the sea rose, not so fast as the air temperature it is true, but fast enough to produce a dangerous increase of humidity. It was indeed this increase that produced the disastrous conditions just remarked. Millions of people between the latitudes of Cairo and the Cape of Good Hope were subjected to a choking atmosphere that grew damper and hotter from day to day. All human movement ceased. There was nothing to be done but to lie breathing quickly as a dog does in hot weather.By the fourth week of July conditions in the tropics lay balanced between life and total death. Then quite suddenly rain clouds appeared over the whole globe. The temperature declined a little, due no doubt to the clouds reflecting more of the Sun s radiation back into space, But conditions could not be said to have improved. Warm rain fell everywhere, even as far north as Iceland. The insect population increased enormously, since the burning hot atmosphere was as favorable to them as it was unfavorable to Man many other animals.81. In the British Isles the temperature .A)stayed at eightyB)ranged from eighty to ninetyC)approached one hundredD)exceeded the hundred mark82. Few people in the United States lost their lives because .A)the temperature was tolerableB)people remained indoors for weeksC)the government had taken effective measures to reduce the hot temperatureD)people were provided with the most comfortable air-conditioners83. Millions of people in Cairoand the Cape of Good Hopewere subjected to a choking atmosphere because .A)the temperature grew extremely hotB)the temperature became damper and hotter as the humidity of the surface waters of the sea increasedC)their conditions were too dangerousD)nothing could be done with the hot temperature84. By the fourth week of July conditions in the tropics were such that .A)human survival would be impossibleB)more and more people would lose their livesC)fewer people could be savedD)survival or death was still undecided85. The insect population increased due to .A)the hot airB) the tropical climateC)the rain cloudsD)the damp atmosphere答案：1.C 2.D 3.B 4.D 5.ATea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea. People in Britain were much slower in finding out what tea was like, mainly because tea was very expensive. It could not be bought in shops and even those people who could afford to have it sent from Holland did so only because it was a fashionable curiosity. Some of them were not sure how to use it. They thought it was a vegetable and tried cooking the leaves. Then they served them mixed with butter and salt. They soon discovered their mistake but many people used to spread the used tea leaves on bread and give them to their children as sandwiches.Tea remained scarce and very expensive in England until the ships of the East India Company began to bring it direct from China early in the seventeenth century. During the next few years so much tea came into the country that the price fell and many people could afford to buy it.At the same time people on the Continent were becoming more and more fond of tea. Until then tea had been drunk without milk in it, but one day a famous French lady named Madame de Sevigne decided to see what tea tasted like when milk was added. She found it so pleasant that she would never again drink it without milk. Because she was such a great lady her friends thought they must copy everything she did, so they also drank their tea with milk in it. Slowly this habit spread until it reached England and today only very few Britons drink tea without milk.At first, tea was usually drunk after dinner in the evening No one ever thought of drinking tea in the afternoon until a duchess found that a cup of tea and a piece of cake at three or four o clock stopped her gettinga sinking feelingas she called it. She invited her friends to have this new meal with her and so, tea-time was born.76. Which of the following is true of the introduction of tea into Britain?A)The Britons got expensive tea from India.B)Tea reached Britain from Holland.C)The Britons were the first people in Europe who drank tea.D)It was not until the 17th century that the Britons had tea.77. This passage mainly discusses .A)the history of tea drinking in BritainB) how tea became a popular drink in BritainC)how the Britons got the habit of drinking teaD)how tea-time was born78. Tea became a popular drink in Britain .A)in eighteenth centuryB)in sixteenth centuryC)in seventeenth centuryD)in the late seventeenth century79. People in Europe began to drink tea with milk because .A)it tasted like milkB) it tasted more pleasantC)it became a popular drinkD)Madame de Sevinge was such a lady with great social influence that people tried to copy the way she drank tea80. We may infer from the passage that the habit of drinking tea in Britain was mostly due to the influence of .A)a famous French ladyB)the ancient ChineseC)the upper social classD)people in Holland答案：1.B 2.A 3.C 4.D 5.C。