单选题We have to install new water pipes in our house; these are corroded.

单选题Human mind can respond quickly to what is before it, and by the same token can call up from within a host of appropriate ideas.

单选题The principal congratulated the student on his outstanding display of leadership.

单选题From a very early age, some children exhibit better self-control than others. Now, a new study has tracked how low self-control can predict poor health, money troubles and 31 a criminal record in their adult years. The study began with 1,000 children in New Zealand. Researchers followed them for 32 . They observed the level of self-control the youngsters 33 . Parents, teachers, even the kids themselves, scored the youngsters on measures like "acting before thinking" and " 34 in reaching goals." The children of the study are now adults in their thirties. Terrie Moffitt of Duke University found that kids with self-control issues 35 to grow up to become adults with a far more troubling set of issues to deal with. "The children who had the lowest self-control 36 they were age three to ten, early years, later on had the most health problems in their thirties," Moffitt said, "and they had the worst 37 situation. They were more likely to have a criminal record and to be raising a child as a single parent 38 a very low income." Moffitt said it"s still unclear why some children have better self-control than others, 39 other researchers have found that it"s mostly a learned behavior, with relatively little 40 influence. But good self-control can run in families because children with good self—control are more likely to grow up to be healthy and prosperous parents.

单选题Woman: I don't think we should have told Allen about the surprise party for Sue. Man: It's all right. He doesn't make promises lightly, and he promised not to tell. Question: What does the man mean?

单选题This hypothesis states that environments that are too clean may actually make the ______ system develop oversensitive responses.

单选题Larry was so {{U}}absorbed{{/U}} in his novel that he forgot about his dinner cooking in the oven.

单选题He ______all his unfinished manuscripts to his colleagues in the laboratory before he went to France.

单选题In Paragraph 7, the word " inevitably" is closest in meaning to"______"

单选题{{B}}Passage Four{{/B}} Just a few years ago, a graduate from Brown University medical school had just an {{U}}inkling{{/U}} about how to care for the elderly. Now, Brown and other U. S. medical schools are plugging geriatric (老年) courses into their curricula. The U.S. Census Bureau projects the number of elderly Americans will nearly double to 71 million by 2030. The first members of the Baby Boomer generation, so named for the explosion in births in the years after World War Two, turn 65 in three years. In addition, people are living longer than ever. "The first ripples of the silver tsunami are lapping at the shores of our country, but there is not a coordinated or strategic response taking place in America," said Richard Besdine, who is direetor of the geriatrics division at Brown University medical school in Providence. Geriatries has never been a field of choice for young doctors. Elderly care doctors are paid less than most other physicians and surgeons and the aged can be hard to treat. They have complicated medical histories and their ailments, even such routine illnesses as pneumonia (肺炎), can be more difficult to diagnose because they may be masked by other conditions. Also, drugs can affect them differently than middle-aged adults." It's a hard job; it's not paid very well; it's complicated; and there's very little status within the hierarchy of medical specialties to being a geriatric physician," said Gavin Hougham, senior program officer and manager of medicine programs at the John A. Hartford Foundation. Out of 800 000 doctors in the United States, roughly 7 000 are geriatricians, Hougham said. The country needs another 13 000 to adequately care for today's older population, according to the American Geriatrics Society. The shortfall could reach 36 000 by 2030. To help counter that, private groups are bankrolling medical schools' emphasis on aging. The Hartford Foundation has given more than $40 million to 27 schools to train faculty in elderly care, and the Donald W. Reynolds Foundation has given more than $100 million to 30 schools to include more geriatrics content. "If they don't learn it, they still have to deal with it," Hougham said. "It's not that not learning geriatrics will cause these older people to go away. They're coming whether we're ready or not. "

单选题In mild winters apple buds began to break soon after Christmas, leaving them ______ to frost damage.

单选题Speaker A: When Lisa saw me at the mall, she didn't even say hello to me. Speaker B: I can't understand why ______. I thought you were good friends.

单选题After the bombing, there was a lot of ______ everywhere.

单选题A: Why don't we go to see a baseball game?B: ______

单选题{{B}}Passage Two{{/B}} Desperately short of living space and dangerously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third of the country already covered by water and half of its land mass below sea level and constantly under threat from rising waters, the authorities believe that floating communities may well be the future. Six prototype wooden and aluminum floating houses are already attached to something off Amsterdam, and at least a further 100 are planned on the same estate, called Ijburg "Everybody asks why didn't we do this kind of thing before," said Gijsbert Van der Woerdt, director of the firm responsible for promoting the concept. "After Bangladesh we're the most densely populated country in the world. Building space is scarce and government studies show that we'll need to double the space available to us in the coming years to meet all our needs." Before being placed on the water and moved into position by tugboats (拖船), the houses are built on land atop concrete flat-bottomed boats, which encase giant lumps of polystyrene (聚苯乙烯) reinforced with steel. The flat-bottomed boats are said to be unsinkable and are anchored by underwater cables. The floating roads apply the same technology. The concept is proving popular with the Dutch. "The waiting list for such homes, which will cost between euros 200,000-500,000 to buy, runs to 5,000 names," claims Van der Woerdt. With much of the country given over to market gardening and the intensive cultivation of flowers, planners have also come up with designs for floating greenhouses designed so that the water beneath them irrigates the plants and controls the temperature inside. A pilot project, covering 50 hectares of flooded land near Amsterdam's Schiphol airport, is planned for 2005. The opportunities for innovative developers look promising. "We have 10 projects in the pipeline- floating villages and cities complete with offices, shops and restaurants," Van der Woerdt said.

单选题I would like your {{U}}authorization{{/U}} to trim the part of the tree that hangs into my yard.

单选题The long time disagreement of the couple brought about their divorce.

单选题Man: Have you heard it? John has just been promoted again!Woman: He's the boss's blue-eyed boy at present.Question: What does the woman mean?

单选题{{B}}Passage Four{{/B}} Computers can beat chess champion Gary Kasparov at his game, count all the atoms in a nuclear explosion, and calculate complex figures in a fraction of a second, but they still fail at the slight differences in language translation. Artificial Intelligence computers have large amounts of memory, capable of storing huge translating dictionaries and extensive lists of grammar rules. Yet, today's best computer language translators have just a 60 percent accuracy rate. Scientists are still unable to program the computer with human-like common sense reasoning power. Computer language translation is called Machine Translation, or MT. While not perfect, MT is surprisingly good. MT was designed to process dry, technical language that people find tedious to translate. Computers can translate basic phrases, such as "Your foot bone's connected to your ankle bone, your ankle bone's connected to your leg bone." They can translate more difficult phrases, such as "Which witch is which?" Computers can also accurately translate "Wild thing, you make my heart sing!" into other languages, because they can understand individual words, as long as the words are pre-programmed in their dictionary. But highly sensitive types of translating, such as important diplomatic conversations, are beyond the scope of computer translating programs. Human translators use intuitional meaning, not logic, to process words and phrases into other languages. A human can properly translate the phrase, "The pen is in the pen (围养禽畜的圈) ," because most humans know that it means that a writing instrument is in a small enclosed space. Many times, computers do not have the ability to determine in which way two identical words in one sentence are to be used. In addition to using massive rule-programmed machines, computer programmers are also trying to teach computers to learn how to think for themselves through the "experience" of translating. Even with these efforts, programmers admit that a "thinking" computer might not ever be invented in the future.

单选题A balance of international payment refers to the net result of the business which a nation {{U}}carries{{/U}} on with other nations in a given period.