单选题I won't (tolerate) that kind of behavior.

单选题The house had many drawbacks, most notably its price.

单选题We"ve seen a marked shift in our approach to the social issues.

单选题John says that his present job does not provide him with enough scope for his organizing ability.

单选题Who Wants to Live Forever? If your doctor could give you a drug that would let you live a healthy life for twice as long, would you take it? The good news is that we may be drawing near to that date. Scientists have already extended the lives of flies, worms and mice in laboratories. Many now think that using genetic treatments we will soon be able to extend human life to at least 140 years. This seems a great idea. Think of how much more time we could spend chasing our dreams, spending time with our loved ones, watching our families grow and have families of their own. "Longer life would give us a chance to recover from our mistakes and promote long term thinking, "says Dr. Gregory Stock at School of Public Health of University of California. "It would also raise productivity by adding to the year we can work." Longer lives don"t just affect the people who live them. They also affect society as a whole. "We have war, poverty, all sorts of issues around, and I don"t think any of them would be at all helped by having people live longer," says US bioethicist Daniel Callahan. "The question is "What will we get as a society"? I suspect it won"t be a better society. " It would certainly be a very different society. People are already finding it more difficult to stay married. Divorce rates are rising. What would happen to marriage in a society where people lived for 140 years? And what would happen to family life if nine or 10 generations of the same family were all alive at the same time? Research into ageing may enable women to remain fertile for longer. And that raises the prospect of having 100-year-old parents, or brothers and sisters born 50 years apart. We think of an elder sibling as someone, who can protect us and offer help and advice. That would be hard to do if that sibling came from a completely different generation. Working life would also be affected, especially if the retirement age was lifted. More people would stay in work for longer. That would give us the benefits of age-skill, wisdom and good judgment. On the other hand, more people working for longer would create greater competition for jobs. It would make it more difficult for younger people to find a job. Top posts would be dominated by the same few individuals, making career progress more difficult. And how easily would a 25-year-old employee be able to communicate with a 125-year-old boss? Young people would be a smaller part of a society in which people lived to 140. It may be that such a society would place less importance on guiding and educating young people, and more on making life comfortable for the old. And society would feel very different if more of its members were older. There would be more wisdom, but less energy. Young people like to move about. Old people like to sit still. Young people tend to act without thinking. Old people tend to think without acting. Young people are curious and like to experience different things. Old people are less enthusiastic about change. In fact, they are less enthusiastic about everything. The effect of anti-aging technology is deeper than we might think. But as the science advances, we need to think about these changes now. "If this could ever happen, then we"d better ask what kind of society we want to get," says Daniel Callahan. "We had better not go anywhere near it until we have figured those problems out."

单选题She was {{U}}grateful{{/U}} to him for being so good to her. A. careful B. hateful C. beautiful D. thankful

单选题Man of Few Words Everyone chases success, but not all of us want to be famous. South African writer John Maxwell Coetzee is 1 for keeping to himself. When the 63-year-old man was named the 2003 Nobel Prize winner for literature, reporters were warned that they would find him "particularly difficult to 2 ," Coetzee lives in Australia but spends part of the year teaching at the University of Chicago. He seemed 3 by the news that he won the US $1.3 million prize. "It came as a complete surprise. I wasn"t even aware they were due to make the announcement," he said. His 4 of privacy led to doubts as to whether Coetzee will attend prize-givng in Stockholm, Sweden, on December 10. But despite being described as 5 to track down, the critics agree that his writing is easy to get to know. Born in Cape Town, South Africa, to an English-speaking family, Coetzee 6 his breakthrough in 1980 with the novel "Waiting for the Barbarians". He 7 his place among the world"s leading writers with two Booker prize victories, Britain"s highest honour for novels. Her first 8 in 1983 for the Life and Times of Michael K and his second title came in 1999 for Disgrace. A major theme in his work is South Africa"s former apartheid system, which divided whites from blacks. 9 with the problems of violence, crime and racial division that still exist in the country, his books have enabled ordinary people to understand apartheid 10 within. "I have always been more interested in the past than the future," he said in a rare interview. "The past 11 its shadow over the present. I hope I have made one or two people think 12 about whether they want to forget the past completely." In fact, this purity in his writing seems to be 13 in his personal life. Coetzee is a vegetarian, a cyclist rather than a motorist and he doesn"t drink alcohol. But what he has 14 to literature, culture and the people of South Africa is far greater than the things he has given up. "In looking at weakness and failure in life," the Nobel prize judging panel said, "Coetzee"s work 15 the divine spark in man."

单选题The early pioneers had to {{U}}go though{{/U}} many hardships to settle on the new land.

单选题She was a Upuzzle/U.

单选题Nanotechnology Many of the grand challenges of today and the future are found in the question: "How are we going to solve the problems and make serious improvements in industrial manufacturing, disease control, environmental pollution control, global climate change, food production, transportation, communication, and others?" Nanotechnology (纳米技术) promises to make revolutionary contributions. Within the next few years we can expect to see major improvements. Here are some possibilities the things to come. Nanotechnology is fundamentally changing the way materials and devices will be produced in the future. Nanostructures, ceramics, polymers, metals, and other materials will have greatly improved mechanical properties. In fact, with the ability to build things atom-by-atom and molecule-by-molecule there will be new classes of structural materials. Nanotechnology will enable products to be lighter, stronger, smarter, cheaper, cleaner and more precise. The ability to synthesize nanoscale budding blocks with precisely controlled size and composition and then to assemble them into larger structures with unique properties and functions will revolutionize segments of the materials manufacturing industry. Nanotechnology is expected to bring about lighter, stronger, and programmable materials; reductions in life-cycle costs through lower failure rates; innovative devices based on new principles and architectures; and use of molecular cluster manufacturing. Nanotechnology will provide new tools for medicine. It could radically change the way surgery is done. It will make it possible to do molecular scale surgery to repair and rearrange cells. Since disease is the result of physical disorder, misarranged molecules and cells, medicine at this level should be able to cure most diseases. Mutations in DNA could be repaired and cancer cells, toxic chemicals, and viruses could be destroyed through use of medical Nan devices. Nanotechnology enabled increases in computational power will permit the characterization of macromolecular networks in realistic environments. Such simulations will be essential elements in the development of biocompatible implants and in the drug discovery process. Nanotechnology has the potential to significantly impact energy efficiency, storage, and production. Nanotechnology can change the economics of energy production.

单选题I realized to my horror that I had forgotten the present.

单选题We can no longer tolerate his actions. A. put up with B. accept C. take D. receive

单选题Central Park is a beautiful green oasis(绿洲) in the middle of New York's concrete desert. It is surprisingly big, with lakes and woods, as well as organized recreation areas. New Yorkers love Central Park, and they use it all the time. In the winter, they go ice - skating, and in the summer roller - skating. They play ball, ride horses and have picnics. They go bicycling and boating. There is even a children's zoo, with wild birds and animals. What can't you see in Central Park?A. Lakes.B. Woods.C. Birds and animals.D. Recreational shows.

单选题Glassmaking was the first major industry in the United States.A. profitableB. productiveC. sizableD. specialized

单选题Sport or Spectacle? Muhammad Ali is probably the most famous sports figure on earth: he is recognized on every continent and by all generations. The 1 of his illness as Parkinson"s disease after his retirement fuelled the debate about the dangers of boxing and criticism 2 the sport. That, plus his outspoken opposition 3 women"s boxing, made people wonder how he would react when one of his daughters decided to 4 up the sport. His presence at Leila"s first professional fight, however, seemed to broadcast a father"s support. Of course Muhammad All wanted to 5 his daughter fight. The ring announcer introduced him as the "the greatest" and as he sat down at the ringside the crowd chanted. Twenty-one-year-old Leila"s debut fight (首次亮相) was a huge success and there was as much publicity for the 6 as her father"s fights once attracted. 7 , Leila"s opponent was much weaker than she was and the fight lasted just 31 seconds. Since then, Laila has won most of her fights by knocking out her opponent. "She knows 8 she"s doing," said one referee about her, "She knows about moving well, You can see some of her dad"s moves." Laila Ali would rather not 9 herself to her father. She prefers to make her own 10 . Her father supports her decision to enter the sport but he has not spared her the details of what can happen. Laila 11 that her father wants her to understand the worst possible scenario (局面) to see 12 she still wants to go forward with it. She knows she"s going to get hit hard at times, that she may get a broken nose or a swollen (肿胀的) face, but at least she is prepared for it. Laila"s decision to start boxing despite her father"s 13 with the symptoms of Parkinson"s disease has of course sparked a mixture of praise and 14 . But Laila is a determined individual and it is her famous last name that has made her a magnet for worldwide media attention. Of course, the 15 on the boxing scene of a woman with her family history attracts even more questions about whether women"s boxing is sport or spectacle.

单选题Forecasting Methods There are several different methods that can be used to create a forecast. The method a forecaster chooses depends Upon the experience of the forecaster, the amount of information available to the forecaster, the level of difficulty that the forecast situation presents, and the degree of accuracy or confidence needed in the forecast. The first of these methods is the persistence method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. For example, if it is sunny and 87 degree today, the persistence method predicts that it will be sunny and 87 degree tomorrow. If two inches of rain fell today, the persistence method would predict two inches of rain for tomorrow. However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not the best forecasting method to use. The trends method involves determining the speed and direction of movement for fronts, high and low pressure centers, and areas of clouds and precipitation. Using this information, the forecaster can predict where he or she expects those features to be at some future time. For example, if a storm system is 1,000 miles west of your location and moving to the east at 250 miles per day, suing the trends method you would predict it to arrive in your area in 4 days. The trends method works well when systems continue to move at the same speed in the same direction for a long period of time. if they slow down, speed up, change intensity, or change direction, the trends forecast will probably not work as well. The climatology method is another simple way of producing a forecast. This method involves averaging weather statistics accumulated over man years to make the forecast. For ex- ample, if you were using the climatology method to predict the weather for new York City on July 4th, you would go through all the weather data that has been recorded for every July 4th and take an average. The climatology method only works well when the weather pattern is similar to that expected for the chosen time of year. if the pattern is quite unusual for the given time of year, the climatology method will often fail. The analog method is a slightly more complicated method of producing a forecast. It involves examining today's forecast scenario and remembering a day in the past when the weather scenario looked very similar (an analog). The forecaster would predict that the weather in this forecast will behave the same as it did in the past. The analog method is difficult to use because it is virtually impossible to find a predict analog. Various weather features rarely align themselves in the same locations they were in the previous time. Even small differences between the current time and the analog can lead to very different results.

单选题阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 People thinking about the origin of language for the first time usually arrive at the conclusion that it developed gradually as a system of grunts, hisses and cries and {{U}}(51) {{/U}} a very simple affair in the beginning. {{U}}(52) {{/U}}, when we observe the language behaviour of {{U}}(53) {{/U}} we regard as primitive cultures, we find it {{U}}(54) {{/U}} complicated. It was believed that an Eskimo must have the tip of his tongue a vocabulary of more than 10,000 words {{U}}(55) {{/U}} to get along reasonably well, much larger than the active vocabulary of an average businessman who speaks English. {{U}}(56) {{/U}}, these Eskimo words are far more highly infleeted (词尾变化) than {{U}}(57) {{/U}} of any of the well-known European languages ,for a {{U}}(58) {{/U}} noun can be spoken or written in {{U}}(59) {{/U}} hundred different forms, each {{U}}(60) {{/U}} a precise meaning different from that of any other. The forms of the verbs are even more {{U}}(61) {{/U}} . The Eskimo language is, therefore, one of the most difficult in the world to learn, {{U}}(62) {{/U}} the result that almost no traders or explorers have {{U}}(63) {{/U}} tried to learn it. Consequently , there has grown up, in communication between Eskimos and whites, a jargon {{U}}(64) {{/U}} to the pidgin English used in Old China, with a vocabulary of from 300 to 600 uninflected words. Most of them are derived from Eskimo but some are derived from English, Danish, Spanish, Hawaiian and other languages. It is this jargon that is usually {{U}}(65) {{/U}} by travellers as "the Eskimo language".

单选题The Sun Dance is considered by many to be the most spectacular {{U}}ritual{{/U}} of the North American Plains Indians.

单选题Who (Doesn't) Let the Dogs Bark? For the past year, Cornelia Czarnecki said, the barking of her neighbor's German shepherd has awakened her repeatedly at 4 am. The dog often barks for hours at a time, said Mrs. Czarnecki, a Clifton resident. "That dog is out there barking day and night, and we don't know .what to do anymore," she said. Mrs. Czarnecki became so upset about the dog that she filed a municipal complaint against him under the town's general noise ordinance. The case is set to be heard in municipal court on August 6. Complaints like the ones Mrs. Czarnecki lodged with the police and city officials led the Clifton City Council to draft an ordinance that could result in fines for residents whose dogs are "barking, howling, crying" or making any other loud noises for more than 30 minutes in an hour. "I can't wait," Mrs. Czarnecki said. The council took up the ordinance for a first reading on Tuesday; a final vote is scheduled on August 8. "It's a quality of life issue," said Councilman Frank C Fusco, who introduced the measure. Clifton is far from alone in seeking to silence noisy dogs. At least 144 of New Jersey's municipalities have laws that address whining and barking, according to a municipal ordinance database online at www.generalcode.com. In New York, at least 30 towns in Nassau and Suffolk Counties have similar laws, as do about 25 towns in Westchester County. Connecticut has a statewide law barring dogs that are a "nuisance" because of "excessive barking or other disturbance." Many of the ordinances in the region are general prohibitions against excessive whining or barking. In Westchester, the City of New Rochelle ran into trouble with its law in 1997 after a resident challenged a citation. A city judge ruled that the ordinance was unconstitutionally vague because it did not include details about time of day and duration of barking, and the city changed the law in 1998. "Many of these ordinances go back to the 1800s," said the New Rochelle corporation counsel, Bernis Shapiro." They're just carried forward and they don't get changed until an issue comes up." In May 2006, Hillsborough Township in Somerset County passed an ordinance to specifically address barking, but no complaints have been filed since then, said Lt. Bill Geary of the Hillsborough Police Department. Other New Jersey towns, including Bloomsbury in Hunterdon County and Manville in Somerset, considered such ordinances but withdrew them after residents complained that they would be unenforceable. As for those who contend that a barking dog should be a low priority, Councilman Fusco said, "If the dog was next to your house, you'd sing a different song." Mr. Fusco said he was confident that the ordinance proposed in Clifton would be supported by his fellow council members. At the same time, he knows that some residents may object. But David Axelrod, a groomer at Furrs N Purrs on Valley Road, said he did not think the measure was tough enough. "Thirty minutes is extremely generous," he said. "There is no reason why a dog should be barking that long." The ordinance says barking must be sustained to be illegal, and it bans excessive barking only from 10 pm to 7 am. Under the ordinance, a resident complains to the City Health Department, which sends a warning note. If the barking continues, the resident takes the complaint to municipal court, where fines can start at $250. Before a court date, the city would most likely try to resolve the matter through mediation, said the city attorney, Matthew T. Priore. Last year about a dozen warning letters were sent to residents about their barking dogs, Clifton officials said. Currently, residents can complain about barking under the city's general noise ordinance, but they have to essentially prosecute the case in municipal court themselves, Mr. Fusco said. Under the proposed ordinance, residents would appear as a witness in a case presented by the municipal prosecutor. "The new ordinance has some bite to it," Mr. Fusco said. Eric M. Zwerling, director of the Rutgers University Noise Technical Assistance Center, trains police officers on noise complaints and writes municipal noise codes. "One of the things I say to the officers I train is that if people were fundamentally civil to each other, we'd all be out of work," he said. Mr. Zwerling, the owner of a chocolate Labrador named Bosco, said he had his own appreciation of the barking problem. "A dog is barking for one of two reasons -- either it needs attention or it is trying to alert you to something," he said. "In either case, you should be attending to it./

单选题Steep stairs can present a particular hazard to older people.