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大学英语六级阅读理解练习及答案

大学英语六级阅读理解练习及答案

大学英语六级阅读理解练习及答案一Can the Computer Learn from Experience计算机会总结经验吗Computers have been taught to play not only checkers, but also championship chess, which is a fairly accurate yardstick for measuring the computer’s progress in the ability to learn from experience.Because the game requires logical reasoning, chess would seem to be perfectly suited to the computer .all a programmer has to do is give the computer a program evaluating the consequences of every possible response to every possible move, and the computer will win every time. In theory this is a sensible approach; in practice it is impossible. Today, a powerful computer can analyze 40 000 moves a second. That is an impressive speed. But there are an astronomical number of possible moves in chess —literally trillions. Even if such a program were written (and in theory it could be ,given enough people and enough time), there is no computer capable of holding that much data.Therefore, if the computer is to compete at championship levels, it must be programmed to function with less than complete data. It must be able to learn from experience, to modify its own programm, to deal with a relatively unstructured situation—in a w ord, to “think”for itself . In fact, this can be done. Chess-playing computers have yet to defeat world champion chess players, but several have beaten human players of only slightly lower ranks. The computers have had programs to carry them through the early, mechanical stages of their chess games. But they have gone on from there to reason and learn,and sometimes to win the game.There are other proofs that computers can be programmed to learn, but this example is sufficient to demonstrate the point. Granted , winning a game of chess is not an earthshaking event even when a computer does it . But there are many serious human problems which ban be fruitfully approached as games. The Defense Department uses computers to play war games and work out strategies for dealing with international tensions. Other problems—international and interpersonal relations , ecology and economics , and the ever-increasing threat of world famine—can perhaps be solved by the joint efforts of human beings and truly intelligent computers .Notescheck:a game played on a checkerboard by two players ,each using 12 piecesecology:the relationship between organisms and their environment 生态关系,生态学Reading comprehensionThe purpose of creating chess-playing computers is __________A to win the world chess championB to pave the way for further intelligent computersC to work out strategies for international warsD to find an accurate yardstick for measuring computer progress2 Today , a chess-playing computer can be programmed to ________A give trillions of reponses in a second to each possible move and win the gameB function with complete data and beat the best playersC learn from chess-playing in the early stage and go on to win the gameD evaluate every possible move but may fail to give the right response each time3 For a computer to “think” , it is necessary to ________A mange to process as much data as possible in a secondB program it so that it can learn from its experiencesC prepare it for chess-playing firstD enable it to deal with unstructured situations4 The author’s attitude towards the Defense Department is____A criticalB unconcernedC positiveD negative5 In the author’s opinion,______A winning a chess game is an unimportant eventB serious human problems shouldn’t be regarded as playing a gameC ecological problems are more urgent to be solvedD there is hope for more intelligent computers1 b2 c3 b4 c5 d二You Call This a Good Economy这能称之为上佳经验You have to have lived in the 1950s and 1960s to haveexperienced a good economy. In the period between 1950 and 1970 it was the rule—rather than the exception —that an ordinary family, without higher education, could sustain itself decently on the income of a single breadwinner(养家糊口的人). In 1955, when I was 19 and living in Brooklyn, N. Y., my father, who had a sixth-grade education, maintained our family of five on a wage of $82 a week as a bookbinder. My mother taught us fairness and compassion; my father, discipline and enterprise.The U. S. economy in those years was good. Then where did this good economy go? It was inflated away. The price of gold, which I take as proxy for the prices of all goods, was $35 an ounce in those years. It is at roughly ten times that price today.There is another answer, though: inflation caused the entire work force to be moved into higher tax groups, thus reducing after-tax purchasing power. That is, my father’s bindery job in1954 paid $82 a week, with $80 after deductions; today, at $ 820 per week the net would be $662.To ordinary people, the economy doesn’t look very good at all. After-tax incomes continue to decrease in purchasing power. The jobs offered in the employment ads pay only a little more than the minimum wage, maybe $5 an hour, which, after payroll deductions, yields $4 an hour. Compare that with minimum-wage jobs of the early 1950s, when 75 cents was worth today’s $7.50 before and after taxes.Notes1 Brooklyn: a district of New York city2 inflate:通货膨胀3 proxy: the authority to act for another4 payroll: a list of employees and the wages due to eachReading ComprehensionIn the author’s opinion, a good economy, to ordinary people can be expressed in terms of ______the amount of wageafter-tax incomethe actual purchasing powerthe minimum wage per hourIn the period between 1950 and 1970,_______there was not much difference in the living standards between people of higher and lower educationan ordinary family of five without exception could live on one person incomethe income of an ordinary family was more than enough for buying foodfor an average family the income was sufficient to support all the membersToday a bookbinder’s wage is ten times that of the 1950’s but its income tax rate has increased ______a.50 timesb.60timesc. 70 timesd. 80 times4 The worsening of a bookbinder’s livelihood results from _____a. his low education and the amount of wageb. the high-taxation and the income deductionsc. the high taxation and cost of livingd. thelow wage and higher prices5 The passage implies that while the cost of living is getting higher______a. the value of labor actually is shrinkingb. the minimum wage level is increasing likewisec. the income tax rate is rising alongd. the employment ads naturally offer a higher minimum wage6 The author’s tone in writing th e article is_____a. ironicalb. subjectivec. high-soundingd. convincing7 the article aims to _________.a. help control the rapidly increasing pricesb. give some advice to the policy-makersc.impress the younger generation with some basic factsd.call upon the societys attention against inflation1 c2 b3 d4 c5 a6 d7 c三Are Experts Always Right专家总是对的吗The world has become so complicated that we’ve lost confidence in our ability to understand and deal with it. But common sense is useful now as it ever was. No amount of expertise substitutes for an intimate knowledge of a person or a situation. At times you just have to trust your own judgement.It almost cost me my life to learn that. I was reading a bookone day, idly scratching the back of my head, when I noticed that, in one particular spot, the scratching echoed inside my head like fingernails on an empty cardboard carton, I rushed off to my doctor.“Got a hole in your head, have you?” he teased. “It’s nothing—just one of those little scalp ner ves sounding off.”Two years and four doctors later, I was still being told it was nothing. To the fifth doctor. I said, almost in desperation,”But I live in tis body. I know something’s different.”“If you won’t take my word for it,I’ll take an X-ray and prove it to you,” he said.Well, there it was, of course, the tumor that had made a hole as big as an eye socket in the back of my skull. After the operation, a young resident paused by my bed. ”It’s a good thing you’re so smart,” he said.” Most patient di e of these tumors because we don’t know they’re there until it is too late.”I’m really not so smart. And I’m too docile in the face of authority. I should have been more aggressive with those first four doctors. It’s hard to question opinions delivered wi th absolute certainty.Experts always sound so sure. Nevile Chamberlain, the British prime minister, was positive, just before the start of World War II, that there would be “peace for our time.” Producer Irving Thalberg did not hesitate to advise Louis B. Mayer against buying the rights to Gone With the Wind because “no Civil War picture ever made a nickel.” Even Abraham Lincoln surely believed it when he said in his Gettysburg Address:” The world will little note, nor long remember, what we say here…”We should not, therefore, be intimidated by experts. When it’s an area we really know about—our bodies, our families, ourhouses—let’s listen to what the experts say, then make up our own minds.Notescardboard carton:a box or container made of a stiff pasteboard of paperscalp: the skin covering the headtumor:肿瘤eye socket: the opening or cavity in which the eye fitsdocile: easily managed or taughtreading comprehension“It” in “…deal with it”(para.1) refers to ______a. confidenceb. the worldc. abilityd. complication2. “Expertise” in para.1 means______a. common senseb. expert skill or knowledgec. unusual ability to appreciated. personal experience3. We have to trust our own judgement since ____a. not all of us have acquired reliable expertiseb. experts often lose their common sensec. experts may sometimes fail to give good adviced. intimate knowledge of a person is not to be substituted for by expertise4 “That” in “it almost cost me my life to learn that”(para.2) refers to______a. I can learn to trust my judgementb. I can acquire an intimate knowledge of myselfc. common sense is not as useful as knowedged. expertise may not be reliable5 While reading one day, the author______a. found a hole at the back of his headb. heard a scratching sound from a cartonc. noticed some echo from his head where he was scratchingd. noticed a sound coming out from his head6 “tease” in paragraph 3 means______a. to make fun ofb. to comfortc. to replyd. to disbelieve7 “if you won’t take my word for it”in para.5 may be paraphrased_____a. if you don’t think my word is worth anythingb. if you don’t listen to my advicec. if you don’t believe my judgementd. if you prefer actions to words8 “Skull” in para.6 most probably means____a. the bony framework of the headb. the surface skin of the headc. the nerve system inside the headd. the top part of the head9 The author didn’t think he was smart(para.7)because____a. he had already suffered for two yearsb. he had not been able to put up with the painc. he had believed too much in expertised. he had formed too strong an opinion of himself10 It happens that the examples given by the author_____a. all concern with warsb. are taken from modern American historyc. have become popular themes in moviesd. have American Civil War as the background11 In the last paragraph, the work ”intimidate” may mean_____a. deceiveb. frightenc. make timidd. encourage1 b2 b3 c4 d5 c6 a7 c8 a9 c 10 a 11 c四Just Call Me Mister1 On cold days people in Manhattan like to take their children to PlaySpace, an indoor playground full of wonderful climbing and sliding contraptions. There’s just one irritating detail: when you pay your money, the cashier pulls out a felt-trip marker and an adhesive lapel tag and asks you your name.“Frum,” I say.“No, your first name.”“What do you need my first name for?”“To write on the tag, so all the children and the staff will know what to call you.”“In that case, write ‘Mr. Frum.’”2 At which I am shot a look as if I had asked to be called to Duke of Plaza Toro.3 In encouraging five-year-olds to address grownups by their first names, PlaySpace is only slightly ahead of the times. As a journalist, I faithfully report that the custom of addressing strangers formally is as dead as the practice of leaving a visiting card.4 There’s hardly a secretary left who does not reply, when I give a message fro her boss, “I’ll tell him you called, David.” Or a public relations agent, whether in Bangor or Bangkok, who does not begin his telephonic spiel with a cheerful “Hello, David!”5 You don’t have to be a journalist to collect amazing first-name stories. Placea collect call, and the operator first-names you. The teenager behind the counter at a fast-food restaurant asks a 70-year-old customer for his first name before taking his order.6 Habitual first-names claim they are motivated by nothing worse than uncontrollably high-spirited friendliness. I don’t believe it. I f I asked the fast-food order-takers to lend me $50, their friendliness would vanish in a whoosh. The PR man drops all his cheerfulness the moment he hears I won’t go along with his story idea. No, it’s not friendliness that drives first-namers; it’s aggression. The PR agents who call me David uninvited would never, if they could somehow get him on the phone, address press baron Rupert Murdoch that way. The woman at the bank who called me David would never first-name the bank’s chairman. Like the mock-cheery staff at PlaySpace, they are engaged in a smiley-faced act of belittlement, anassertion of power disguised as good cheer.Notes1 contraptions:(informal)mechanical devices;gadgets2 felt-tip marker:软笔尖的颜色笔3 adhesive lapel tag:不干胶标牌4 Duke of Plaza Toro: Duke is a nobleman with the highest hereditary rank, especially in Britain. Plaza Tora is Spanish, something like “Bull Fighting Ring” in English5 Bangor:City of South central Maine6 Bangkok:Captical of Thailand,曼谷7 spiel(slang) a lengthy, usually extravagant, speech or argument intended to be persuasive8 collect call:a telephone call with payment to be made by the receiver9 press baron:Baron is the lowest male rank of nobility, but here it stands for a man with great power in press10 mock: simulated11 cheery:cheerfulReading comprehensionThe author apparently regrets____having to take his children to PlaySpacebeing first-namedbeing approached so frequently by PR agentshaving to put on an adhesive lapel tag“PR” in paragraph6 stands for____a. personal requestb. personal respectc. public relationsd. public review3 When the author, as a journalist, speaks on the phone___a. he is usually very formal and faithfulb. he does not know whether a grownup or a child is speaking at the other endc. he finds people address each other formallyd. he finds the secretary is often willing to pass a message4 He often finds secretaries _____a. irresponsible in answering phone callsb. trustworthy in passing messagesc. not only friendly but also carefuld. calling him David5 The author thinks that addressing a stranger by his first name is being____a. cheerfulb. friendlyc. disrespectfuld. light-hearted6 “As dead as” in paragraph 3 may be paraphrased as_____a. as firmly fixed asb. as useless asc. as out of fashion asd.as unmistakenly as7 Habitual first-namers’ claim amounts to saying____a. there’s nothing that can be worse than high-spirited friendlinessb. their attitude should be acceptablec. they are sometimes too high-spirited to control chemselvesd. one should control oneself while speaking to a stranger8 The so-called high-spirited friendliness(para. 6) is actually____a. cheerfulness in appearance but mockery in realityb. out and out insultc. a well-accepted skill in public relationsd. an act of outward warmth9 “In a whoosh” in paragraph 6 means______a. by all meansb. in the endc. in a secondd. in reality10 “I won’t go along with…” in paragraph 6 may be paraphrased asa. I won’t believe……b. I won’t go on listening…..c. I won’t agree with…. D. I won’t stick to…..1 b2 c3 c4 d5 c6 a7 b8 a9 c 10 b五The Dvelopment of Civilization1 The first two stages in the development of civilized man were probably the invention of primitive weapons and the discovery of fire, although no body knows exactly when he acquired the use of the latter2 The origin of language is also obscure. No doubt it began very gradually Animals have a few cries that serve as signals, buteven the highest apes have not been found able to pronounce words, even with the most intensive professional instruction. The superior brain of man is apparently a necessity for the mastering of speech. When man became suffiviently intelligent, we must suppose that he fradually increased the number of cries for different purposes. It was a great day when he discovered hat speech could be used for narrative. There are those who think in this respect picture language preceded oral language. A man could draw a picture on the wall of his cave to show in which direction he had gone, or what prey he hoped to catch. Probably picture language and oral language developed side by side. I am inclined to think that language has been the most important single factor in the developmentof man.3 Two important stages came not so long before the dawn of written history. The first was the domestication of animals; the second was agriculture. Agriculture was a step in human progress to which subsequently there was nothing comparable until our own machine age. Agriculture made possible an immense increase in the number of the human species in the regions where it could be successfully practiced. These were, at first, only those in which nature fertilized the soil after each harvest. Agriculture met with violent resistance from the pastoral nomads, but the agricultural way of life prevailed in the end because of the physical comforts it provided.4 Another fundamental technical advance was writing, which, like spoken language, developed out of pictures, but as soon as it had reached a certain stage, it was possible to keep records and transmit information to people who were not present when the information was given.5 These inventions and discoveries—fire, speech, weapons, domestic animals, agriculture, and writing—made the existence of civilized communities possible. From about 3000 B. C. until the beginning of the Industrial Revolution less than two hundred years ago there was no technical advance comparable to these. During this long period man had time to become accustomed to his technique, and to deveop the beliefs and political organizations appropriate to it There was, of course, an immense extension in the area of civilized life. At first it had been confined to the Nile, the Euphrates, the Tigris and the Indus, but at the end of the period in question it covered much the greater part of the inhabitable globe. I do not mean to suggest that there was no technical progress during this long time; there was progress—there were even two inventions of very great importance, namely gunpowder and the mariner’s compass—but neither of these can be compared in their power to such things as speech and writing and agriculture.Notes1 ape: any monkey2 narrative: a story or description of actual or fictional events; to narrate is to give an account or commentary3 prey: an animal hunted or caught for food4 pastoral: of or pertaining to shepherds, herdsmen, etc.5 nomad: one of a group of people who have no permanent home and move about from place to place6 the Nile: the longest river in the world flowing through East Africa,尼罗河7 the Tigris: river of Southwest Asia, joining the Euphrates in South Iraq8 the Euphrates: river of Southwest Asia,幼发拉底河9 the Indus: river of South Central Asia, rising from Southwest Tibet, flowing through Pakistan to the Arabian SeaReading Comprehensionwhich one of the following, according to the author, was first discovered or invented in human civilization?a. written languageb. oral languagec. fired. domestication2 The author does not state clearly but implies that in the development of man___a. human speech developed along with other human facultiesb. picture language and writtenlanguage developed side by sidec. oral language preceded the use of fired. the ape might be taught to master speech3 According to the passage picture language was found most useful when_____a. people didn’t want to use speech in communicationb. oral language was not fully developedc. people went hunting or traveling somewhered. people were inhabiting in caves4 It is the author’s view that in human civilization agriculture______.a. is the most important step man has ever madeb. is only less important than the domestication of animalsc. had long been practiced as stated in written historyd. can be ranked in importancewith the invention of machines5 In the 3rd paragraph,”… in the regions where it could be practiced…”, here, “it” refers to ________a. increaseb. numberc. agricultured. species6 The pastoral nomads would not have yielded to the agricultural way of life____a. if it had not been for the benefits brought about by agricultureb. unless agriculture could provide them with sufficient domesticated animalsc. if agriculture had taken up too large a number of their pasturesd. if they had not found setbacks in their pastoral way of life7 Written language in its initial stage was found more advantageous in that __a. it could communicate more accurately than the oral languageb. it had developed from picture languagec. information could be recorded and transmittedd. it was easier to learn than picture language8 The following conditions except one made it possible for civilized communities to exist. The exception is _________a. writingb. agriculturec. fired. caves9 The word ”it” in “… to develop the beliefs and political organizations appropriate to it.”(paragraph 5) stands for______a. techniqueb. timec. long periodd. Industrial Revolution10 The author means to say that human civilized life originated from____a. South Europeb. North Africac. East Asiad. river areas1 c2 a3 b4 d5 c6 a7 c8 d9 a 10 d。

英语六级阅读理解提分练习和答案

英语六级阅读理解提分练习和答案

英语六级阅读理解提分练习和答案英语六级阅读理解提分练习和答案:The moden world only recently reached the Yanomano, a native people of the Amazon basin. Sheltered by thick rainforest,the Yanomano lived a self-contained existence until gold was discovered in their jungle homeland. Miners flocked into the forests, cutting down trees and bringing disease and shot those Yanomano who would not get out of the way. In just seven years from the early 1980s, the population fell 20 per cent.Hands Around the World, a native American cultural association, says the Yanomano are believed to be the most culturally intact people in the world. They wear loin cloths, use fire sticks and decorate their bodies with dye from a red berry(桨果). They dont use the wheel and the only metal they use is what has been traded to them by outsiders. When a Yanomano dies, the body is burned and the remaining bones crushed into a powder and turned into a drink that is later consumed by mourners in memory of the dead.A Hands Around the World report says that in South America not only are the cultures and traditions in danger of disappearing, but some tribes are in danger of extinction. “The Yanomano is a well-known tribe that is rapidly losing its members through the destruction of Western disease,”the report says. Before illegal gold miners entered their rainforest, the Yanomano were isolated from modern sociaty.They occupy dense jungle north of the Amazon River between Venezuela and Brazil and are catalogued by anthropologists(人类学家) as neo-indians with cultural characteristics that date back more than 8,000 years. Each community lives in a circular communal house, some of which sleep up to 400, built around a central square.Though many Yanomano men are monogamous, it is not unusual for them to have two or more wives. Anthropologists from the University of Wisconsin say polygamy is a way to increase ones wealth because having a large family increases help with hunting and cultivating the land. These marriages result in a shortage of women for other men to marry, which has led to inter-tribal wars.Each Yanomano man is responsible for clearing his land for gardening, using slash-and-hum farming methods. They grow plantains, a type of banana eaten cooked, and hunt game animals, fish and anaconda(南美热带蟒蛇) using bows and arrows. (396 words)1. Miners flocked into the forest and shot those Yanomano who _______.A. sheltered in thick rainforestB. would not leave their jungle homelandC. lived a self-contained existenceD. would stand in their way2. The organization called Hands Around the World believes that culturally, the Yanomano is the worlds__________.A. most primitive peopleB. most backward peopleC. most advanced peopleD. oldest people3. Which of the following is NOT true according to an American cultural association report?A. In South America, the cultures are on the verge of extinction.B. In South America, the traditions are on the verge of extinction.C. In South America, the Yanomano can survive extinction.D. In South America, some tribes are on the verge of extinction.4. _________caused the Yanomano to have inter-tribal wars.A. The shortage of women resulting from polygamyB. The difference in wealth resulting from polygamyC. The shortage of women resulting from monogamyD. The difference in wealth resulting from monogamy5. We can infer from the passage that it is imperative for us to protect the Yanomano because__________.A. it is a clturally most intact peopleB. it is a primitive people deep in jungleC. it is a native people of the Amazon basinD. it is primitive people in danger of disappearing1. D 细节理解题。

大学英语六级阅读理解训练附答案

大学英语六级阅读理解训练附答案

大学英语六级阅读理解训练附答案Early in the age of affluence富裕that followed World War II, an American retailing analystnamed Victor Lebow proclaimed, "Our enormously productive economy... demands that wemake consumptionour way of life, that we convert the buying and use of goods into rituals,that we seek our spiritual satisfaction, our ego satisfaction, in consumption...We need thingsconsumed, burned up, wornout, replaced and discarded at an ever increasing rate."Americans have responded to Lebow's call, and much of the world has followed.Consumption has become a central pillar of life in industrial lands and is even embedded insocial values.Opinion surveys in the world's two largest economies-Japan and the UnitedStates-show consumerist definitions of success becoming ever more prevalent.Overconsumption by the world's fortunate is an environmental problem unmatched in severityby anything but perhaps population growth. Their surging exploitation of resourcesthreatens toexhaust or unalterably spoil forests, soils, water, air and climate.Ironically, high consumption may by a mixed blessing in human terms, too.The time-honored values of integrity of character, good work, friendship, family andcommunity have often been sacrificed in the rush to riches.Thus many in the industrial lands have a sense that their world, of plenty is somehow hollow-that, misled by a consumerist culture, they have been fruitlessly attempting to satisfy whatareessentially social. psychological and spiritual needs with material things.Of course,. the opposite of overconsumption-poverty-is no solution to either environmentalor human problems. It is infinitely worse for people and bad for the natural worldtoo.Dispossessed被剥夺得一无所有的 peasants slash-and-burn their way into the rain forests ofLatin American, and hungry nomads 游牧民族 turn theirherds out onto fragile Africangrassland, reducing it codesert.If environmental destruction results when people have either too little or too much, we arc leftto wonder how much is enough. What level of consumption can the earth support? When doeshavingmore cease to add noticeably to human satisfaction?在随第二次世界大战之后来临的富裕年代的早期,有位名叫维克多·勒波的美国零售业分析师声称:“[1]我们巨大的、多产的经济……要求我们把消费当做我们的生活方式,要求我们把商品的购买和使用变成生活习惯,要求我们在消费的过程中寻求精神满足和自我满足……我们需要以越来越快的速度消耗、燃掉、用掉、替换并扔掉物品。

大学英语六级阅读理解套题训练含答案

大学英语六级阅读理解套题训练含答案

大学英语六级阅读理解套题训练含答案大学英语六级阅读理解套题训练含答案May I be strenuous, energetic and persevering !May I be patient! May I be able to bear and forbear the wrongs of others! May I ever keep a promise given!以下是店铺为大家搜索整理的大学英语六级阅读理解套题训练含答案,希望能给大家带来帮助!You stare at waterfall for a minute or two, and then shift your gaze to its surroundings. What you now see appears to drift upward.These optical illusions occur because the brain is constantly matching its model of reality to signals from the body’s sensors and interpreting what must be happening—that your brain must have moved, not the other; that downward motions is now normal, so a change from it must now be perceived as upward motion.The sensors that make this magic are of two kinds. Each eye contains about 120 million rods, which provide somewhat blurry black and white vision. These are the windows of night vision; once adapted to the dark, they can detect a candle burning ten miles away.Color vision in each eye comes from six to seven million structures called cones. Under ideal conditions, every cone can “see” the entire rainbow spectrum of visible colors, but one type of cone is most sensitive to red, another to green, a third to blue.Rods and cones send their messages pulsing an average 20 to 25 times per second along the optic nerve. We see an image for a fraction of a second longer than it actually appears. In movies, reels of still photographs are projected onto screens at24 frames per second, tricking our eyes into seeing a continuous moving picture.Like apparent motion, color vision is also subject to unusual effects. When day gives way to night, twilight brings what the poet T.S. Eliot called “the violet hour.” A light levels fall, the rods become progressively less responsive. Rods are most sensitive to the shorter wavelengths of blue and green, and they impart a strange vividness to the garden’s blue flowers.However, look at a white shirt during the reddish light of sunset, and you’ll still see it in its “true” color—white, not red. Our eyes are constantly comparing an object against its surroundings. They therefore observe the effect of a shift in the color of illuminating on both, and adjust accordingly.The eyes can distinguish several million graduations of light and shade of color. Each waking second they flash tens of millions of pieces of information to the brain, which weaves them incessantly into a picture of the world around us.Yet all this is done at the back of each eye by a fabric of sensors, called the retina, about as wide and as thick as a postage stamp. As the Renaissance inventor and artist Leonardo da Vinci wrote in wonder, “Who would believe that so small a space could contain the images of all the universe?”1.Visual illusions often take place when the image of reality is ___.A.matched to six to seven million structures called cones.B.confused in the body’s sensors of both rods and cones.C.interpreted in the brain as what must be the case.D.signaled by about 120 million rods in the eye.2.The visual sensor that is capable of distinguishing shades of color is called ___.A.conesB.color visionC.rodsD.spectrum3.The retina send pulses to the brain ___.A.in short wavelengthsB.as color picturesC.by a ganglion cellD.along the optic nerve.4.Twenty-four still photographs are made into a continuous moving picture just because ___.A.the image we see usually stays longer than it actually appears.B.we see an object in comparison with its surroundings.C.the eyes catch million pieces of information continuously.D.rods and cones send messages 20 to 25 times a second.5.The author’s purpose in writing the passage lies in ___.A.showing that we sometimes are deceived by our own eyes.rming us about the different functions of the eye organs.C.regretting that we are too slow in the study of eyes.D.marveling at the great work done by the retina.答案:CADAB27Art is considered by many people to be little more than a decorative means of giving pleasure. This is not always the case, however; at times, art may be seen to have a purely functional side as well. Such could be said of the sandpaintings of the Navaho Indians of the American Southwest; these have a medicinal as well as an artistic purpose.According to Navaho traditions, one who suffers from either a mental or a physical illness has in come way disturbed or come in contact with the supernatural—perhaps a certain animal, a ghost, or the dead. To counteract this evil contact, the ill person or one of his relatives will employ a medicine man called a “singer” to perform a healing ceremony which will attract a powerful supernatural being.During the ceremony, which may last from 2 to 9 days, the “singer” will produce a sandpainting on the floor of the Navaho hogan. On the last day of the ceremony, the patient will sit on this sandpainting and the “singer” will rub the ailing parts of the patient’s body with sand from a specific figure in the sandpainting. In this way the patient absorbs the power of that particular supernatural being and becomes strong like it. After the ceremony, the sandpainting is then destroyed and disposed of so its power will not harm anyone.The art of sandpainting is handed down from old “singer” to their students. The material used are easily found in the areas the Navaho inhabit; brown, red, yellow, and white sandstone, which is pulverized by being crushed between 2 stones much as corns is ground into flour. The “singer” holds a small amount of this sand in his hand and lets it flow between his thumb and fore-finger onto a clean, flat surface on the floor. With a steady hand and great patience, he is thus able to create designs of stylized people, snakes and other creatures that have power in the Navaho belief system. The traditional Navaho does not allow reproduction of sandpaintings, since he believes the supernatural powers that taught him the craft have forbidden this; however, such reproductions can in fact be purchased today in tourist shops in Arizona and New Mexico. These are done by eitherNavaho Indians or by other people who wish to preserve this craft.1.The purpose of the passage is to ___.A.discuss the medical uses of sandpaintings in medieval Europe.B.study the ways Navaho Indians handed down their painting art.C.consider how Navaho “singer” treat their ailments with sandpaintings.D.tell how Navaho Indians apply sandpainting for medical purposes.2.The purpose of a healing ceremony lies in ___.A.pleasing the ghostsB.attracting supernatural powersC.attracting the ghostsD.creating a sandpainting3.The “singer” rubs sand on the patient because ___.A.the patient receives strength from the sandB.it has pharmaceutical valueC.it decorates the patientD.none of the above4.What is used to produce a sandpainting?A.PaintB.Beach sandC.Crushed sandstoneD.Flour5.Which of the following titles will be best suit the passage?A.A New Direction for Medical ResearchB.The Navaho Indians’ SandpaintingC.The Process of Sandpainting CreationD.The Navaho Indians’ Medical History 答案:DBACB。

2021年6月大学英语六级深度阅读理解(1)

2021年6月大学英语六级深度阅读理解(1)

2021年6月大学英语六级深度阅读理解(1)The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of themid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.1. What is the best title of the passage?a. The Agriculatural Trends of 1950’sb. The Unemployment Rate of 1950’sc. U.S. Economy in the 50’sd. The Federal Budget of 19522. In Line 3, the word “boom” could best be replaced by______.a. nearby explosionb. thunderous noisec. general public supportd. rapid economic growth3. It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of _________.a. confidenceb. confusionc. disappointmentd. suspicion4. Which of the following were LEAST satisfied with the national economy in the 1950’s?a. Economistsb. Frmaersc. Politiciansd. Steelworkers5. The passage states that incom available for spending in the U.S. was greater in 1955 than in 1950 . How much was it ?a. 60%b. 50%c. 33%d. 90%参考答案1-5 cdabc。

英语六级阅读理解综合练习

英语六级阅读理解综合练习

英语六级阅读理解综合练习阅读理解一:题目为"A Trip to London"London, the capital city of England, is one of the most fascinating and vibrant cities in the world. With its rich history, iconic landmarks, and diverse culture, a trip to London is a dream for many travelers.When planning a trip to London, it is essential to decide on the duration of your stay. With so much to see and do, a minimum of five days is recommended to fully explore the city. This allows enough time to visit famous attractions such as the Tower of London, Buckingham Palace, and the British Museum.Transportation in London is efficient and well-connected. The London Underground, commonly known as the Tube, is the fastest way to travel around the city. It covers various zones and offers convenient connections to major attractions. Additionally, the red double-decker buses are a classic mode of transportation, allowing you to take in the sights while getting from one place to another.Accommodation options in London are plentiful, ranging from luxury hotels to budget-friendly hostels. If you prefer a centrally located hotel, areas such as Westminster and Covent Garden provide easy access to many attractions. However, if you are traveling on a budget, consider staying in areas like Camden or Shoreditch, known for their vibrant nightlife and affordable accommodations.The food scene in London is diverse and offers something for everyone. From traditional English pubs serving fish and chips to international cuisinesfrom around the world, you will be spoilt for choice. Don't forget to try traditional afternoon tea and explore the bustling markets like Borough Market for a culinary adventure.Shopping enthusiasts will delight in the variety of shopping options London has to offer. From high-end department stores like Harrods and Selfridges to trendy street markets like Portobello Road Market, there is something to cater to every taste and budget. Oxford Street, known for its extensive range of shops, is a must-visit for fashion lovers.In conclusion, a trip to London promises an unforgettable experience. From its historical landmarks to its vibrant culture, the city has much to offer. Plan your visit well, make use of the efficient transportation system, and explore the diverse range of attractions, food, and shopping options. London truly has something for everyone, making it a top destination for travelers worldwide.阅读理解二:题目为"Benefits of Regular Exercise"Regular exercise plays a crucial role in maintaining a healthy lifestyle. From physical well-being to mental and emotional health, the benefits of exercise are numerous.Firstly, regular exercise helps to improve physical fitness. Engaging in activities such as jogging, swimming, or cycling strengthens the cardiovascular system, increasing endurance and reducing the risk of heart disease. Exercise also aids in weight management, as it burns calories and reduces body fat. Additionally, it promotes the development of lean muscle mass, resulting in a toned and fit physique.Exercise is not only beneficial for the body but also for the mind. Physical activity triggers the release of endorphins, often referred to as the "feel-good" hormones. These hormones promote feelings of happiness and help to reduce stress, anxiety, and depression. Regular exercise also improves sleep patterns, leading to better overall mental well-being.Furthermore, exercise has been linked to cognitive benefits. Studies show that regular physical activity improves memory, concentration, and overall brain function. It has also been found to reduce the risk of neurodegenerative diseases, such as Alzheimer's and dementia, as it stimulates the growth of new brain cells.In addition to the physical and mental benefits, exercise also promotes social interaction. Engaging in group activities or joining sports clubs allows individuals to meet like-minded people and develop new friendships. This not only provides a support system but also enhances overall social well-being.To reap the benefits of regular exercise, it is recommended to engage in at least 150 minutes of moderate-intensity exercise per week, or 75 minutes of vigorous-intensity exercise. It is important to choose activities that you enjoy and are suitable for your fitness level. It is also advisable to consult a healthcare professional before starting any new exercise program, especially for individuals with pre-existing medical conditions.In conclusion, regular exercise offers a wide range of benefits for both physical and mental health. From improving fitness and weight management to reducing stress and promoting social interaction, exercise is an integralpart of a healthy lifestyle. Make exercise a priority in your daily routine and experience the positive impact it can have on your overall well-being.。

英语六级阅读理解模拟练习附答案

英语六级阅读理解模拟练习附答案

英语六级阅读理解模拟练习附答案六级阅读理解模拟练习一:Which is safer-staying at home, traveling towork on public transport,or working in the office?Surprisingly, each of these carries the same risk,which is very low. However, what about flyingcompared to working in the chemical industry?Unfortunately, the former is 65 times riskier thanthe latter! In fact, the accident rate of workers inthe chemical industry is less than that of almost anyof human activity, and almost as safe as staying at home.The trouble with the chemical industry is that when things go wrong they often cause deathto those living nearby. It is this which makes chemical accidents so newsworthy. Fortunately,they are extremely rare. The most famous ones happened at Texas City (1947),Flixborough(1974),Seveso (1976), Pemex (1984) and Bhopal (1984)。

Some of these are always in the minds of the people even though the loss of life was small.No one died at Seveso, and only 28 workers at Flixborough. The worst accident of all wasBhopal, where up to 3,000 were killed. The Texas City explosion of fertilizer killed 552. ThePemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, justa month before the unfortunate event at Bhopal.Some experts have discussed these accidents and used each accident to illustrate aparticular danger. Thus the Texas City explosion was caused by tons of ammonium nitrate(硝酸铵),which is safe unless stored in great quantity. The Flixborough fireball was the fault ofmanagement, which tookrisks to keep production going during essential repairs. The Sevesoaccident shows what happens if the local authorities lack knowledge of the danger on theirdoorstep. When the poisonous gas drifted over the town, local leaders were incapable oftaking effective action. The Pemex fire was made worse by an overloaded site in anovercrowded suburb. The fire set off a chain reaction os exploding storage tanks. Yet, by amiracle, the two largest tanks did not explode. Had these caught fire,then 3,000 strongrescue team and fire fighters would all have died.1.Which of the following statements is true?A.Working at the office is safer than staying at home.B.Traverlling to work on public transport is safer than working at the office.C.Staying at home is safer than working in the chemical industry.D.Working in the chemical industry is safer than traveling by air.2.Chemical accidents are usually important enough to be reported as news because ____.A.they are very rareB.they often cause loss of lifeC.they always occur in big citiesD.they arouse the interest of all the readers3.According to passage, the chemical accident that caused by the fault of managementhappened at ____.A.Texas cityB.FlixboroughC.SevesoD.Mexico City4.From the passage we know that ammonium nitrate is a kind of ____.A.natural gas, which can easily catch fireB.fertilizer, which cant be stored in a great quantityC.poisonous substance, which cant be used in overcrowded areasD.fuel, which is stored in large tanks5.From the discussion among some experts we may coclude that ____.A.to avoid any accidents we should not repair the facilities in chemical industryB.the local authorities should not be concerned with the production of the chemicalindustryC.all these accidents could have been avoided or controlled if effective measure hadbeen takenD.natural gas stored in very large tanks is always safe参考答案:DBABC六级阅读理解模拟练习二:40 years ago the idea of disabled people doingsport was never heard of. But when the annualgames for the disabled were started atStokeMandeville, England in 1948 by Sir LudwigGuttmann, the situation began to change.Sir Ludwig Guttmann, who had been driven toEngland in 1939 from Nazi Germany, had been askedby the British government to set up an injuriescenter at Stoke Mandeville Hospital near London. His ideas about treating injuries includedsport for the disabled.In the first games just two teams of injured soldiers took part. The next year, 1949, fiveteams took part. From those beginnings, things have developed fast. Teams now come fromabroad to Stoke Mandeville every year. In 1960 the first Olympics for the Disabled were held inRome, in the same place as the normal Olympic Games. Now, every four years the OlympicGames for the Disabled are held, if possible, in the same place as the normal Olympic Games,although they are organized separately. In other years Games for the Disabled are still held atStoke Mandeville. In the 1984 wheelchair Olympic Games, 1064 wheelchair athletes from about40 countries took part. Unfortunately, they were held at Stoke Mandeville and not in LosAngeles, along with the other Olympics.The Games have been a great success in promoting international friendship andunderstanding, and in proving that being disabled does not mean you cant enjoy sport. Onesmall source of disappointment for those who organize and take part in the games,however, has been the unwillingness of the International Olympic Committee to includedisabled events at Olympic Games for the able-bodied. Perhaps a few more years are stillneeded to convince those fortunate enough not to be disabled that their disabled fellowathletes should not be excluded.21. The first games for the disabled were held______after Sir Ludwig Guttmann arrived inEngland.A. 40 yearsB. 21 yearsC. 10 yearsD. 9 years22. Besides Stoke Mandeville, surely the games for the disabled were once held in______.A. New YorkB. LondonC. RomeD. Los Angeles23. In Paragraph 3, the word "athletes" means______.A. people who support the gamesB. people who watch the gamesC. people who organize the gamesD. people who compete in the games24. Which of the following statements is NOT true?A. Sir Ludwig Guttmann is an early organizer of the games for the disabled.B. Sir Ludwig Guttmann is an injured soldier.C. Sir Ludwig Guttmann is from Germany.D. Sir Ludwig Guttmann is welcomed by the British government.25. From the passage, we may conclude that the writer is ______.A. one of the organizers of the game for the disabledB. a disabled person who once took part in the gamesC. against holding the games for the disabledD. in favor of holding the games for the disabled 参考答案:21. D 22. C 23. D 24. B 25. D。

大学英语六级阅读理解(集锦3篇)

大学英语六级阅读理解(集锦3篇)

大学英语六级阅读理解(集锦3篇)大学英语六级阅读理解(1)"I've never met a human worth cloning," says cloning expert M ark Westhusin from the cramped confines of his lab at Texas A&M University. "It's a stupid endeavor." That's an interesting choice of a djective, coming from a man who has spent millions of dollars tryin g to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two calves and expe ct to clone a cat soon. They just might succeed in cloning Missy lat er this year---or perhaps not for another five years. It seems the re productive system of man's best friend is one of the mysteries of modern science.Westhusin's experience with cloning animals leaves him vexed b y all this talk of human cloning. In three years of work on the Miss yplicity project, using hundreds upon hundreds of canine eggs, the A&M team has produced only a dozen or so embryos carrying Miss y's DNA. None have survived the transfer to a surrogate mother. Th e wastage of eggs and the many spontaneously aborted fetuses ma y be acceptable when you're dealing with cats or bulls, he argues, but not with humans. "Cloning is incredibly inefficient, and also dan gerous," he says.Even so, dog cloning is a commercial opportunity, with a nice r esearch payoff. Ever since Dolly the sheep was cloned in, 1997, Wes thusin's phone at A&M College of Veterinary Medicinehas been ringing busily. Cost is no obstacle for customers like Missy's mysterious owner, who wishes m remain unknown to protec t his privacy. He's plopped down $3.7 million so far to fund the research because he wants a twin to carry on Missy;s fine q ualities after she dies. But he knows her clone may not have her te mperament. In a statement of purpose, Missy's owners and the A& M team say they are "both looking forward to studying the ways th at her clone differ from Missy."The fate of the dog samples will depend on Westhusin's work. He knows that even if he gets a dog viably pregnant, the offspring, should they survive,大学英语六级阅读理解(2)1.大纲要求六级考试大纲对阅读理解题的要求为:既能理解个别句子的意义,也能理解上下文的逻辑关系;既能理解字面的意思,也能理解隐含的意思;既能理解事实和细节,也能理解所读材料的主旨和大意;能就文章的内容进行判断,推理和信息转换。

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Y ou might ask why it is that women decided to go after jobs in ever greater numbers. Y ou might equally ask why not. The idea of the nuclear family, with the breadwinner father out at work and the housekeeper and child-minder mother at home, is neither as old as obvious as it seems. In predominantly agricultural societies, both father and mother worked on the land. Children saw plenty of both of them, and were expected to start helping out at a tender age. With the industrial revolution, formal work largely moved away from home, but both parents commonly had jobs to make ends meet; the children managed as best they could. It takes a fairly sophisticated society with a comfortable middle class, and a belief in an extended period of education for th e young, to devise the “traditional” family model that enjoyed such a vogue (时尚) in developed countries in the late 1940s to early 1960s.That traditional model ran out of stream for a number of reasons. Single women, either up until marriage or up until the birth of the first child, have always worked; the novelty is that in the past few decades growing numbers of marriage women have been taking paid jobs too. One thing that has helped to make this possible is readily available contraception (避孕). Children arrive ever later in their mother’s life, and in ever smaller numbers. Except for America and some of the Nordic countries, the rich world produces far too few children to keep up its present population; in some countries the one-child family is becoming the norm, and many women remain childless.Y et even women who do have families are working in far greater numbers than before. In America, at least three out of four mothers of school-age children have jobs. Working mothers used to be criticized for neglecting their children; now it is mothers staying at home who have to explain themselves. Combining work and family, however, makes for hectic (繁忙的) lives, despite the array of gadgets that be, but nowhere near enough. Working women’s biggest single complaint is lack of time.But what they lose in time, they gain in spending power. Their earnings are not just pin money. For the growing number of single mothers they are essential, and in dual-earner families they often make the difference between just getting by and living comfortably. They also offer an insurance policy in the increasingly likely event of a divorce. In America, one marriage in two eventually breaks up. Elsewhere the proportion is lower, but rising.1.According to the author, the family model in the late 1940s to early 1960s was thatthe father went out working while the mother2.In the past few decades the increasing numbers of married women taking jobsoutside home have attributed to having children3.Although there are some modern facilities which help Mothers with houseworkand sometimes Fathers give a hand, working mothers are still4.The phrase “pin money” in Line2, Para.4 means5.The passage is mainly aboutStanding up straight and keeping your body centered may seem like second nature to most of us. But for people with balance disorders, it is anything b ut easy. Wobbly(摇晃的) and unsure on their feet, they often have difficulty walking and are 1 to falls, a leading cause of injury and death in the elderly.Certain diseases and medications, or the normal course of aging, can 2 the sensory signals transmitted to the part of the brain that governs gravitational stability, which is why people become unsteady, dizzy or 3 .Now scientists have developed a novel balance feedback device that weighs less than a pound and can be worn on a belt like a pager. It may help correct balance difficulties by providing sufferers with the sensory data they are missing.An estimated 20% of Americans suffer from balance disorders. These difficulties can be 4 by various infections, head injuries, aging, illnesses such as multiple sclerosis (硬化症)and Parkinson’s disease, or inner ear damage, which can be caused by Ménière’s disease, poor blood circulation or some antibiotics(维生素) .Although maintaining balance may seem effortless, keeping your body stable is a gravity-defying skill that requires input from three main senses. The brain 5 information from our vision, from the vestibular (balance) system in the inner ear from the somatosensory system—the sense receptors in our muscles, joints, skin and feet—that tells us where our body is in 6 to surfaces that we contact.If a person doesn’t receive enough information from the 7 balance sensors, especially from the balance system that regulates our sense of gravity, he or she can become quite wobbly without realizing it. As a consequence, he may 8 too far and fall. It’s basic physics, and the bigger the sway, the more likely it is to fall.The balance feedback device can help 9 a person’s damaged sensory system. The lightweight appliance, which contains sensors, is hooked to a belt and connected to a pair of headphones. The device acts much like a carpenter’s level and emits auditory 10 to let users know when their body is swaying too much so they can make corrections. Different tones and intensities tell subjects which way they are learning: a high-pitched tone, for example, signals that they are learning forward and grows louder if they bend farther; a lower sound tells them they’re swaying backward.Name-calling and teasing are overwhelmingly the main type of classroom bullying, says a study funded by the Japanese Ministry of Education. The study, an international programme looking into the 1 of bullying, has also been sponsored by UNESCO(联合国教科文组织).However, the study does reveal some good news. The research in the British part of the programme has found that the problem of bullying in schools has decreased. A decade of anti-bullying initiatives has led to the first recorded drop in the number of victims and a 2 fall in the number of young bullies. This is the first 3 study to show school bullying on the decrease. The research, being published in the year 2000, was carried out by psychologist Peter Smith, of Goldsmith’s College, London. The war on violence and name-calling has been so successful that Britain is no longer the bullying capital of Europe, 4 major improvements in comparison with other European countries.The research, an international study sponsored by UNESCO, shows that there has been a decline of at least 72 000 in the number of English teenagers who say they have been bullied, compared with 10 years ago. Meanwhile the number of perpetrators(作恶者,行凶者) has more than halved, 5 from 560 000 to 240 000 over the same period. Psychologist Smith said there has been change in the way the issue is 6 in British schools. The findings were an indication of a tough anti-bullying attitude in schools which would not tolerate this kind of behavior, and the result of such initiatives as peers 7 , where students are encouraged to 8 in their fellow pupils.Physical violence against the children accounted for just over one quarter of all reports with boys twice as likely as girls to be kicked, 9 or threatened. Smith found one in seven of all victims suffered racist bullies and being called hurtful names.10 , nearly one-third of the victims told no one. But this is better than ten years ago when Smith found that one half of all the children who were bullied kept it to themselves.The findi ngs were given a cautious welcome by the children’s safety charity Kidscape, which takes 16 000 calls a year from concerned parents. “Some anti-bullying policies are really taking hold, but where it’s bad it’s still very, very bad,” said director Michelle Elliott.At the University of Virginia in Charlottesville, psychology professor Bella DePaulo got 77 students and 70 townspeople to volunteer for an unusual project. All kept diaries for a week, recording the numbers and details of the lies they told.One student and six Charlottesville residents 1 to have told no falsehoods. The other 140 participants told 1 535.The lies were most often not what most of us would call 2 . Someone would pretend to be more positive or supportive of a spouse or friend than he or she really was, or feign (假装) agreement with a relative’s opinion. According to DePaulo, women in their 3 with other women lied mostly to spare the other’s feelings. Men lied to other men generally for self-promoting reasons.For example, 20 000 middle-and high-schoolers 4 devoted themselves to character education. 92 percent of the teenagers admitted having lied to their parents in the previous year, and 73 percent 5 themselves as “serial liars”, meaning they told lies weekly. Despite these admissions, 91 percent of all respondents said they were “satisfied with my own 6 and character”.Little white lies have become ubiquitous(无处不在的) and the reasons we give each other for telling fibs (小慌)are familiar. Consider, for example, a Southern California corporate executive whom I’ll call Tom. He goes with his wife and son to his mother-in-law’s home for Thanksgiving dinner every year. Tom dislikes her “special” pumpkin pie intensely. 7 he tells her how wonderful it is, to avoid hurting her feelings.How often do we 8 people on how well they look, or express our appreciation for gifts when we don’t really mean it? Surely, these nice li es are harmless and well intended, a necessary social lubricant.Even seemingly harmless falsehoods can have unforeseen consequences. Philosopher Sissela Bok warns us that they can put us on a slippery slope. “After the first lies, others can come more eas ily,” she wrote in her book Lying: Moral Choice in Public and Private Life. Psychological barriers wear down; the ability to make more distinctions can coarsen; the liar’s 9 of his chances of being caught may warp(歪曲).Take the pumpkin-pie lies. In the f irst place, it wasn’t just that he wanted his mother-in-law to feel good. Whether he realized it or not, he really wanted her to think highly of him. And after the initial 10 he needed to tell more lies to cover up the first one.Today, some critics argue that progress on environment problems has been elusive(难以捉摸的,难以理解的). There is some truth in that. In the last decade, environment problems have 1 across the globe.Y et over the same 10 years, society has 2 its resources to address these challenges. The original response was slow. But it is gathering speed, with technological breakthroughs and a growing awareness that a clean environment is essential for development.Of course, we should greatly intensify efforts to tackle poverty and environment 3 .They endanger our health, security and the innumerable benefits that come to us from nature.But we should also remember our real accomplishments. We have slashed emissions of chemicals that 4 the ozone layer and threaten human health. Industrialized nations largely eliminated chlorofluoro-carbons and halons, the major ozone-threatening gases. And many developing countries are ahead of the timetable that gives them until 2010 to phase out those gases.We are relying less on dirty fuels. Five million energy-efficient lights have been installed in poor countries and those with 5 economies. Wind power generation capacity has increased from near zero to 1 700 megawatts. Virtually unknown in 1992, solar home systems using photo-voltaic technology now provide power to more than a million rural households. At least 30 major companies have 6 to investing $10 to $15 billion in renewable energy over the next five years.The private sector is playing an increasingly constructive role. This is an acknowledgement that preserving the environment is both good business and a moral 7 . Companies such as Royal Dutch Shell, Dupont and BP Amoco are working to reduce their negative impact on climate change and increase the options for cleaner energy. The Bill and Melinda Gates Foundation has helped to launch the global alliance for improved nutrition, an innovative public-private partnership that seeks to 8 food in a cost-effective way to improve the health, 9 development and productivity of people in poor countries.We can build on the strengths we have developed over the past 10 years and move ahead with confidence that 10 development goals are indeed achievable.。

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