四六级历年改错真题.docx

1、四六级历年改错真题改错: 历年全真试题及参考答案 the very latest moment of his existence, man has been bound to the planet on which he originated and developed. Now he had the capability to leave that planet and move out into the universe to those worlds which he has known previously only directly. Men have explored parts

2、of the moon, put spaceships in orbit around another planet and possibly within the decade will land into another planet and explore it. Can we be too bold as to suggest that we may be able to colonize other planet within the not - too - distant future ? Some have advocated such a procedure as a solu

3、tion to the population problem: ship the excess people off to the moon. But we must keep in head the billions of dollars we might spend in carrying out the project. To maintain the earths population at its present level, we would have to blast off into space 7,500 people every hour of every day of t

4、he year. Why are we spending so little money on space exploration ? Consider the great need for improving many aspects of the global environment, one is surely justified in his concern for the money and resources that they are poured into the space exploration efforts. But perhaps we should look at

5、both sides of the coin before arriving hasty conclusions. When you start talking about good and bad manners you immediately start meeting difficulties. Many people just cannot agree what they mean. We asked a lady, who replied that she thought you could tell a well-mannered person on the way they oc

6、cupied the space around themfor example, when such a person walks down a street he or she is constantly unaware of others. Such people never bump into other people. However, a second person thought that this was more a question of civilized behavior as good manners. Instead, this other person told u

7、s a story, it he said was quite well known, about an American who had been invited to an Arab meal at one of the countries of the Middle East. The American hasnt been told very much about the kind of food he might expect. If he had known about American food, he might have behaved better. Immediately

8、 before him was a very flat piece of bread that looked, to him, very much as a napkin (餐巾). Picking it up, he put it into his collar, so that it falls across his shirt. His Arab host, who had been watching, said of nothing, but immediately copied the action of his guest. And that, said this second p

9、erson, was a fine example of good manners.More people die of tuberculosis (结核病) than of anyother disease caused by a single agent. This has probablybeen the case in quite a while. During the early stages of S1. _the industrial revolution, perhaps one in every seventh S2. _deaths in Europes crowded c

10、ities were caused by the S3. _disease. From now on, though, western eyes, missing the S4. _global picture, saw the trouble going into decline. Withoccasional breaks for war, the rates of death andinfection in the Europe and America dropped steadily S5. _through the 19th and 20th centuries. In the 19

11、50s, theintroduction of antibiotics (抗菌素) strengthened thetrend in rich countries, and the antibiotics were allowedto be imported to poor countries. Medical researchers S6. _declared victory and withdrew. They are wrong. In the mid-1980s the frequency of S7. _infections and deaths started to pick up

12、 again around theworld. Where tuberculosis vanished, it came back; in S8. _many places where it had never been away, it grew better. S9. _The World Health Organization estimates that billion people (a third of the earths population) sufferfrom tuberculosis. Even when the infection rate wasfalling, p

13、opulation growth kept the number of clinicalcases more or less constantly at 8 million a year. Around S10. _3 million of those people died, nearly all of them in poorcountries.Sporting activities are essentially modified forms of hunting behavior. Viewing biologically, the modern footballer is revea

14、led as a member of a disguised hunting pack. His killing weapon has turned into a harmless football and his prey into a goal-mouth. If his aim is inaccurate and he scores a goal, enjoys the hunters triumph of killing his prey. To understand how this transformation has taken place we must briefly loo

15、k up at our ancient ancestors. They spent over a million year evolving as co-operative hunters. Their very survival depended on success in the hunting-field. Under this pressure their whole way of life, even if their bodies, became radically changed. They became chasers, runners, jumpers, aimers, th

16、rowers and prey-killers. They co-operate as skillful male-group attackers. Then, about ten thousand years ago, when this immensely long formative period of hunting for food, they became farmers. Their improved intelligence, so vital to their old hunting life, were put to a new use-that of penning (

17、把关在圈中), controlling and domesticating their prey. The food was there on the farms, awaiting their needs. The risks and uncertainties of farming were no longer essential for survival. A great many cities are experiencing difficulties which are nothing new in the history of cities, except in their sca

18、le. Some cities have lost their original purpose and have not found new one. And any large or rich city is going to attract poor immigrants, who flood in, filling with hopes of prosperity which are then often disappointing. There are backward towns on the edge of Bombay or Brasilia, just as though t

19、here were on the edge of seventeenth-century London or early nine-teenth-century Paris. This is new is the scale. Descriptions written by eighteenth-century travelers of the poor of Mexico City, and the enormous contrasts that was to be found there, are very dissimilar to descriptions of Mexico City

20、 today the poor can still be numbered in millions. The whole monstrous growth rests on economic prosperity, but behind it lies two myths: the myth of the city as a promised land, that attracts immigrants from rural poverty and brings it flooding into city centers, and the myth of the country as a Ga

21、rden of Eden, which, a few generations late, sends them flooding out again to the suburbs. The Seattle Times Company is one newspaper firm thathas recognized the need for change and done something aboutit. In the newspaper industry, papers must reflect the diversityof the communities to which they p

22、rovide information.It must reflect that diversity with their news coverage or risk losing their readers interest and their advertisers support.Operating within Seattle, which has 20 percents racial minorities, the paper has put into place policies andprocedures for hiring and maintain a diverse work

23、force. The underlying reason for the change is that for information to befair, appropriate, and subjective, it should be reported by the same kind of population that reads it. A diversity committee composed of reporters, editors, andphotographers meets regularly to value the Seattle Times content an

24、d to educate the rest of the newsroom staff aboutdiversity issues. In an addition, the paper instituted a content audit(审查) that evaluates the frequency and manner ofrepresentation of woman and people of color in photographs. Early audits showed that minorities were pictured far tooinfrequently and

25、were pictured with a disproportionatenumber of negative articles. The audit results from improvement in the frequency of majority representation and their portrayal in neutral or positive situations. And, with a result, the Seattle Times has improved as a newspaper.The diversity training and content

26、 audits helped the SeattleTimes Company to win the Personnel Journal Optimal Awardfor excellence in managing change.Home, sweet home is a phrase that expresses an essential attitudein the United States. Whether the reality of life in the familyhouse is sweet or no sweet. The cherished ideal of home

27、has great importance for many people. This ideal is a vital part of the American dream. This dream,dramatized in the history of nineteenth-century European settlers of theAmerican West, was to find a piece of place, build a house for ones family, and started a farm. These small households were portr

28、aits of independence: the entire family-mother, father, children, evengrandparentslive in a small house and working together to support each other. Anyone understood the life and death importance of family cooperation and hard work. Although most people in the United States no longer live onfarms, b

29、ut the ideal of home ownership is just as strong in the twentieth century as it was in the nineteenth. When , soldiers came home before World War II, for example, they dreamed of buying houses and starting families. But there was a tremendous boom in home building. The new houses, typically in the s

30、uburbs, were often small and more or less identical, but it satisfied a deep need. Many regarded the single-family house the basis of their way of life. Thomas Malthus published his Essay on the Principle ofPopulation almost 200 years ago. Ever since then, forecastershave being warning that worldwid

31、e famine was just around the S1_next corner. The fast-growing populations demand for food,they warned, would soon exceed their supply, leading to S2_widespread food shortages and starvation.But in reality, the worlds total grain harvest has risensteadily over the years. Except for relative isolated trouble spots S3_like present-day Somalia, and occasional years of good harvests, S4_the worlds food crisis has remaine