单选题The prison guards were armed and ready to shoot if ______ in any way.

单选题[1] When I first saw Pippa the cheetah, she was sitting pertly on a chair in the tearoom of the New Stanley Hotel in Nairobi. I had gone to meet her owners, an English couple who were leaving Kenya and wanted to ensure that their pet would find a good home. Pippa was wearing a harness and was able to sit at a table, looking as if she might have a soft drink through a straw. She was a thoroughly spoiled cub. [2] Eighteen months later she had returned to the wild. She was living in the Northern Frontier District where she had been born. She had learned to hunt for herself, had mated with a wild cheetah, and was raising a litter of cubs. [3] Pippa's rehabilitation to the wild required patience, perseverance, love, and the same kind of respect for her as a being that I would have offered a fellow human. I had previously shared this love and respect with Elsa the lioness, whom my husband George and I had raised as a cub. But it was not simply a matter of affection — although there was plenty of that. The rehabilitation process was important as an experiment in developing a means of trying to guarantee the survival of endangered species. The cheetah is one of these; the lion may become one soon. [4] I learned many things from Elsa and Pippa. They proved always to be interesting and affectionate companions. And I enjoyed the closeness to nature that the rehabilitation process required. But there were raany times when I was working with Elsa and Pippa, and there have been many times since, when I have wondered about another endangered species, a species generally as ignorant of the threat to its survival as these two cats had been. That species is man. [5] Some recent scientific, economic, and political research suggests that the curves for food demand and food supply will cross in a maximum of 60 years. By then, man's overpopulation, increasing pollution, and the diminishing food supply could threaten to end human life on our planet. Being aware of this research, I could not help wondering what steps man could take to ensure his survival. Could he, for instance, learn from animals something about birth control, inter-creature relationships, or thought communication that would help him avoid extinction? [6] Generally, the first reaction to such musings is one of astonishment. The question phrases itself. What can man, the most highly evolved species of animal life, learn from less developed creatures? Astonishment at this question itself suggests a starting place. Perhaps man needs to regain his humility — and his sense of perspective. Perhaps he should look at himself as just another experiment of nature, no more important intrinsically than the thousands of other species evolved on our planet. Man is, after all, a fairly recent development. He has lived on earth only 1. 7 million years — not a very long time compared with the 400 million years of some creatures. [7] Man's achievements during this stay are astounding. Yet they endanger his own survival. As a result, he may disappear as have other species who became too overspecialized, or outlived their environment. Perhaps more than any other creature man is notable for his constant violations of the eternal law of living in harmony with nature. Man kills everything that competes with him for living space or food. He has irreparably damaged his environment. He has forsaken nature's basic laws, substituting for them his own man-made laws and values. He has, for example, invented money — and now he gauges success, power, and achievement almost exclusively in terms of it. He overestimates his ego and his capacities. He worships status and sacrifices fantastically for it. [8] A more rational perspective would see that all organic life is of equal importance. That every species has its role to play. That nothing survives unless it fits into the balance of nature and lives within its environment. That all life must work together to preserve life and maintain ecology. [9] But man can also learn more specifically from animals. With his research capacity he can ask himself : How were animals able to maintain the balance of nature for more than 400 million years? Once he has unlocked these secrets, he can try to apply them to his own situation. [10] What are some of these secrets? Birth control is one. Animals have very efficient means of controlling their reproduction. We who study animals have learned about it only in the last few years. We don't yet know how it works, but we do know some facts. Most antelopes, for example, can withhold their young for weeks, even months. They do this in order that births occur with the arrival of the rains, the availability of grazing, and the mothers' adequate supply of milk for the young. [11] Elephants seem able to adjust their reproduction in somewhat the same way. On the Victoria Nile, for instance, one bank is extremely eroded; it provides barely enough food for the elephants living there. The opposite bank, on the other hand, is quite well covered with vegetation. Observations indicate that elephants on the grassy bank calve every four years, while those on the eroded bank do so only every nine. [12] My own observations of Elsa and Pippa have revealed some most interesting facts. These cats come into season every five to seven weeks. Once the first litter has been born, they have the capacity to produce a new litter every three and a half months, and some zoo-confined lionesses actually do produce litters this of-ten. But in their natural state, females of these species will not let a male near them — let alone mate with him — while they are engaged in rearing their young to complete independence. Among lions this period lasts two years; among cheetahs it is about seventeen and a half months. [13] When Pippa lost two litters to predators a few days after their birth, she instantly looked for a mate and conceived despite the fact she had hardly recovered from giving birth. Knowing that her unfortunate cubs did not need her anymore, she lost no time in starting a new litter. This also happened with a lioness I knew. [14] Judging from this behavior, I can only assume that some kind of psychological block stops mother lions and cheetahs from wanting to mate while they are preoccupied with training their young. [15] Another secret of animals' survival is telepathy. This sense has become atrophied in man, but a definite thought-communication functions in animals. Elsa the lioness frequently sensed when George and I intended to visit her camp, even though it lay 180 miles from our home in Isiolo. On most occasions when we made our irregular visits she was waiting for us. By following her spoor we discovered that she had sometimes walked 50 or 60 miles to meet us. [16] The same thing happened when I took Elsa's two sisters to Nairobi to be flown to the Rotterdam zoo. Elsa stayed behind with George in Isiolo 180 miles away. He did not know when I was coming back; no person knew. But Elsa knew. On the morning of my return she sat down in the entrance drive and would not budge until I arrived in the evening. [17] I have known this kind of thought-communication with the animals with whom I've lived. When Elsa died, I woke in the night, knowing what had happened, even though I was several hundred miles away. The same thing occurred later with one of Pippa's cubs. [18] I don't possess this sensitivity with my own kind. I feel far more in tune with what is going on when I am in the bush than when I am in London or Nairobi. We don't know much yet about this telepathy — from which gland it comes, or how it works. But if men could reawaken or cultivate it in themselves, and then cooperate by trusting each other, rather than fearing and treating one another suspiciously, the world would be a far better place. [19] Another secret of the animals is embodied in a basic law of nature which men often ignore. Every animal has around him a security zone. Within that zone he feels safe. Simple observation shows what happens to creatures whose sense of adequate living space has been consistently violated, and who have thus become degenerate. You only have to go to a zoo. There you find animals sitting like prisoners, tucked so close together that it is not surprising they become frustrated and sometimes so tense that they try to break out. Then they have to be destroyed. [20] When people see animals in this condition, they get the impression that the animals are either dangerous and aggressive or, if they have fallen into a state of utter despair, that they are lethargic or stupid. But animals that I have known in their natural state are never like this. This illustrates why zoos — even the best zoos — cannot solve the problem of recovering a healthy survival number of presently endangered species. [21] The security-zone sense, the need for adequate living space, is not limited to wild animals. Men once possessed it as well. But now our awareness of it has grown so faint that four or five people can live together in one room, a situation which repeatedly occurs in overcrowded slums. People living in these conditions often become aggressive — sometimes even criminal — for the same reason that animals do in zoos. [22] Man-made values account not only for man's reduced awareness of his own security zone. They have also impaired a whole range of relationships which nature had placed in proper perspective. One of these, referred to earlier, is mating. Another is the relationship of mother to young. So many modern human mothers these days prefer to have jobs and put their children in day-care centers or kindergartens, rather than look after them. In nature this happens only in perverted cases. I have watched many animal mothers with their young. They are devoted to them and tend them with affection — and discipline. But they don't overdo it. Elsa and Pippa loved their cubs, but they also kept strict behavior. There was no nonsense about it. [23] Man's great challenge at this moment is to prevent his exodus from this planet. If he wants to survive — which he can do only if all other forms of life around him survive as well — he simply has to see himself as no more important than his fellow creatures. Since man has a higher intelligence than most animals, he is responsible for insuring their survival and thus maintaining life on our planet. [24] I personally doubt that man can recover his original relationship with all other forms of life unless he reappraises his man-made values, returns again to the rules of nature, and then accepts and obeys them.

单选题Electronic toys and games, which came on the market in 1976, already ______ a more than half-billion-dollar business.

单选题Passage One The world is going through the biggest wave of mergers and acquisitions ever witnessed. The process sweeps from hyperactive America to Europe and reaches the emerging countries with unsurpassed might. Many in these countries are looking at this process and worrying: "Won't the wave of business concentration turn into an uncontrollable anti-competitive force?" There's no question that the big are getting bigger and more powerful. Multinational corporations accounted for less than 20% of international trade in 1982. Today the figure is more than 25% and growing rapidly. International affiliates account for a fast-growing segment of production in economies that open up and welcome foreign investment. In Argentina, for instance, after the reforms of the early 1990s, multinationals went from 43% to almost 70% of the industrial production of the 200 largest firms. This phenomenon has created serious concerns over the role of smaller economic firms, of national businessmen and over the ultimate stability, of the world economy. I believe that the most important forces behind the massive M&A wave are the same that underlie the globalization process: falling transportation, and communication costs, lower trade and investment barriers and enlarged markets that require enlarged operations capable, of meeting customers' demands. All these are beneficial, not detrimental to consumers. As productivity grows, the world's wealth increases. Examples of benefits or costs of the current concentration wave are scanty. Yet it is hard to imagine that the merge of a few oil firms today could recreate the same threats to competition that were feared nearly a century ago in the U.S., when the Standard Oil trust was broken up. The mergers of telecom companies, such as World Corn, hardly seem to bring higher prices for consumers or a reduction in the pace of technical progress. On the contrary, the price of communications is coming down fast. In cars, too, concentration is increasing—witness Daimler and Chrysler, Renault and Nissan—but it does not appear that consumers am being hurt. Yet the fact remains that the merger movement must be watched. A few weeks ago, Alan Greenspan warned against the megamergers in the banking industry. Who is going to supervise, regulate and operate, as lender of last resort with the gigantic banks that are being created? Won't multinationals shift production from one place to another when a nation gets too strict about infringements to fair corn petition? And should one country take upon itself the role of "defending competition" on issues that affect many other nations, as in the U. S..

单选题I left the office earlier than usual this morning ______ traffic jam.

单选题The Game of the Name Here comes John Smith walking toward me. Even though he is but a passing acquaintance, the American greeting ritual demands that I utter a few words to reassure him of my good will. But what form of address should I use? John? Smith? Dr. Smith? A decision such as this is usually made unconsciously. As native speakers in the American speech community, we have grown up learning the rules of address at the same time that we were acquiring the grammatical rules of American-English. At first thought, it might seem a trivial pursuit to examine the ways in which we address one another. But forms of address reveal many assumptions we make about members of our speech community. Our initial decision about the appropriate address form is based on relative ages. If the person being addressed is a child, then almost all the rules that we have unconsciously assimilated can safely be ignored, and we use the simple formula First Name. The child, in turn, addresses an adult by using the formula Title plus Last Name. But defining a "child" is not always easy. I address my son"s roommate at college by FN, eventhough he is an adult under the law. I, too, have the relative age of a child to a 75-year-old acquaintance who calls me Pete. Let us assume that John Smith is not a child who can be addressed by FN but is either my contemporary or my elder. The next important determiner for the form of address will then be the speech situation. If the situation is a formal one, then I must disregard all other rules and use social identity plus Last Name. John Smith will always be addressed as Dr.Smith (or sometimes simply as Doctor, with Last Name understood) in the medical setting of office or hospital. (I am allowed to call him if my status is at least as high as his or if we are friends outside of our social roles, but the rest of my utterance must remain respectful. ) We are also obliged to address certain other people by their social identity in formal situation: public officials (Congressman; Your Honor) , educators (Professor or Doctor) , leaders of meetings (Mr. Chairman) , Roman Catholic priests (Father Daffy) and nuns (Sister Anna) , and so forth. By the way, note the sexist distinction in the formulas for priests and nuns. The formula for a priest is Father plus Last Name, but for a nun it is Sister plus Religious Name ( usually an FN). Most conversations, however, are not carried on in formal speech situations, and so the basic decision is when to use FN to TLN. A social acquaintance or newly hired colleague of approximately the same age and rank is usually introduced on an FN basis. "Pete, I"d like you to meet Harry. " Now a problem arises if both age and rank of cone of the parties are higher: " Pete, I"d like you to meet Attorney Brown. " Attorney Brown may, of course, at any time signal me that he is willing to suspend the rules of address and allow an FN basis. Such a suspension is his privilege to bestow, and it is usually handled humorously, with a remark like, "I answer quicker to Bruce. " Complications arise when relative age and relative rank are not both the same. A young doctor who joins a hospital finds it difficult to address a much older doctor. They are equal in rank ( and therefore FN should be used) but the great disparity in ages calls for TLN. In such cases, the young doctor can use the No-Name (NN) formula, phrasing his utterances adroitly to avoid using any term of address at all. English is quite exceptional among the world"s languages in this respect. Most European languages oblige the speaker to choose between the familiar and formal second person singular ( as in the French tu and Vous) , as English once did when "thou" was in use. This is the basic American system, but the rules vary according to speech situations, subtle friendship or kin relationships between the speakers, regions of the country, and so forth. Southern speech, for example, adds the formula Title plus First Name ( Mr. Charlie) to indicate familiar respect. Southerners are also likely to specify kin terms ( as in Cousin Jane) whereas in most of the United States FN is used for cousins. Address to strangers also alters some of the rules. A speaker usually addresses a stranger whose attire and behavior indicate higher status by saying sir. But sometimes speakers with low status address those with obviously higher status by spurning this rule and instead using Mac or buddy—as when a construction worker asks a passing executive, socially identified by his attache case, "You got a match, buddy?"

单选题______, the constitution of the Cherokee Nation provided for a chief executive, a senate, and a house of representatives.

单选题I could never understand______.

单选题By the time you get to Washington tomorrow, I ______ for Chicago.

单选题______ the fact that he is an adult now, we should give him more freedom.

单选题The doctor advised Tom to stay in bed, saying he was much ______.

单选题The idea of a balanced diet is very difficult to put ______ to someone who knows nothing about food values.

单选题Greenpeace spokes-people attributed the cutbacks to a drop in annual fund-raising.

单选题 Civil-Liberties advocates reeling from the recent revelations on surveillance had something else to worry about last week: the privacy of the billions of search queries made on sites like Google, AOL, Yahoo and Microsoft. As part of a long-running court case, the government has asked those companies to turn over information on its users' search behavior. All but Google have handed over data, and now the Department of Justice (DOJ) has moved to compel the search giant to turn over the goods. What makes this case different is that the intended use of the information is not related to national security, but the government's continuing attempt to police Internet pornography. In 1998, Congress passed the Child Online Protection Act (COPA), but courts have blocked its implementation due to First Amendment concerns. In its appeal, the DOJ wants to prove how easy it is to inadvertently stumble upon pore. In order to conduct a controlled experiment—to be performed by a UC Berkeley professor of statistics—the DOJ wants to use a large sample of actual search terms from the different search engines. It would then use those terms to do its own searches, employing the different kinds of filters each search engine offers, in an attempt to quantify how often "material that is harmful to minors" might appear. Google contends that since it is not a party to the case, the government has not right to demand its proprietary information to perform its test. "We intend to resist their motion vigorously," said Google attorney Nicole Wong. DOJ spokesperson Charles Miller says that the government is requesting only the actual search terms, and not anything that would link the queries to those who made them. (The DOJ is also demanding a list of a million Web sites that Google indexes to determine the degree to which objectionable sites are searched. ) Originally, the government asked for a treasure trove of all searches made in June and July 2005; the request has been scaled back to one week's worth of search queries. One oddity about the DOJ's strategy is that the experiment could conceivably sink its own case. If the built-in filters that each search engine provides are effective in blocking porn sites, the government will have wound up proving what the opposition has said all along—you don't need to suppress speech to protect minors on the Net."We think that our filtering technology does a good job protecting minors from inadvertently seeing adult content," says Ramez Naam, group program manager of MSN Search. Though the government intends to use these data specifically for its COPA-related test, it's possible that the information could lead to further investigations and, perhaps, subpoenas to find out who was doing the searching. "What if certain search terms indicated that people were contemplating terrorist actions or other criminal activities?" Says the DOJ's Miller, "I'm assuming that if something raised alarms, we would hand it over to the proper authorities." Privacy advocates fear that if the government request is upheld, it will open the door to further government examination of search behavior. One solution would be for Google to stop storing the information, but the company hopes to eventually use the personal information of consenting customers to improve search performance. " Search is a window into people's personalities," says Kurt Opsahl, an Electronic Frontier Foundation attorney. "They should be able to take advantage of the Internet without worrying about Big Brother looking over their shoulders."

单选题There are other cases. The cases are the lessons of the past. They should have been obvious. Sadly they are not learned.

单选题Justice of the Peace have ______ over the trials of some civil suits and of criminal cases involving minor offenses.

单选题Rice called Afghanistan an "important test of the credibility of NATO" President Barack Obama made the same claim in late 2009 when he announced his decision.

单选题The clamorous group of children enjoyed the park all afternoon.

单选题The education______for the coming year is about $ 4 billion, which is much more than what people expected.

单选题The tables in this display are on sale because they have a few imperfections in the finish.