单选题A: How long can I keep the book?B: ______

单选题Before the 1850's the United States had a number of small colleges, most of them dating from colonial days. They were small, church-connected institutions whose primary concern was to shape the moral character of their students. Throughout Europe, institutions of higher learning had developed, bearing the ancient name of university. In Germany a different kind of university had developed. The German university was concerned primarily with creating and spreading knowledge, not morals. Between mid-century and the end of the 1800's, more than nine thousand young Americans, dissatisfied with their training at home, went to Germany for advanced study. Some of them returned to become presidents of venerable (受人尊敬的) colleges—Harvard, Yale, Columbia—and transform them into modern universities. The new presidents broke all ties with the churches and brought in a new kind of faculty. Professors were hired for their knowledge of a subject, not because they were of the proper faith and had a strong arm for disciplining students. The new principle was that a university was to create knowledge as well as pass it on, and this called for a faculty composed of teacher scholars. Drilling and learning by rote (死记硬背) were replaced by the German method of lecturing, in which the professor's own research was presented in class. Graduate training leading to the Ph. D, an ancient German degree signifying the highest level of advanced scholarly attainment, was introduced. With the establishment of the seminar system, graduate students learned to question, analyze, and conduct their own research. At the same time, the new university greatly expanded in size and course offerings, breaking completely out of the old, constricted curriculum of mathematics, classics, rhetoric, and music. The president of Harvard pioneered the elective system, by which students were able to choose their own courses of study. The notion of major fields of study emerged. The new goal was to make the university relevant to the real pursuits of the world. Paying close heed to the practical needs of society, the new universities trained men and women to work at its tasks, with engineering students being the most characteristic of the new regime. Students were also trained as economists, architects, agriculturalists, social welfare workers, and teachers.

单选题Predicting the future is risky business for a scientist. It is safe to say, however, that the global AIDS epidemic will get much worse before it gets any better. Sadly, this modern plague will be with us for several generations, despite major scientific advances. As of January 2000, the AIDS epidemic had claimed 15 million lives and left 40 million people living with a viral infection that slowly but relentlessly erodes the immune system. Accounting for more than 3 million deaths in the past year alone, the AIDS virus has become the deadliest microbe in the world. In Africa nearly a dozen countries have a rate higher than 10%, including four southern African nations in which a quarter of the people are infected. This is like condemning 16 000 people each day to a slow and miserable death. Fortunately, the AIDS story has not been all gloom and doom. Less than two years after AIDS was recognized, the guilty agent—human immunodeficiency virus, or HIV—was identified. We now know more about HIV than about any other virus, and 14 AIDS drugs have been developed and licensed in the U.S. and Western Europe. The epidemic continues to rage, however, in South America, Eastern Europe and sub-Saharan Africa. By the year 2025, AIDS will be by far the major killer of young Africans, decreasing life expectancy to as low as 40 years in some countries and single-handedly erasing the public health gains of the past 50 years. It is Asia, with its huge population at risk, that will have the biggest impact on the global spread of AIDS. The magnitude of the incidence could range from 100 million to 1 billion, depending largely on what happens in India and China. Four million people have already become HIV-positive in India, and infection is likely to reach several percent in a population of 1 billion. Half a million Chinese are now infected; the path of China's epidemic, however, is less certain. An explosive AIDS epidemic in the U.S. is unlikely. Instead, HIV infection will continue to plague in about 0.5% of the population. But the complexion of the epidemic will change. New HIV infections will occur predominantly in the underclass, with rates 10 times as high in minority groups. Nevertheless, American patients will live quality lives for decades, thanks to advances in medical research. Dozens of powerful and well-tolerated AIDS drugs will be developed, as will novel means to restore the immune system. A cure for AIDS by the year 2025 is not inconceivable. But constrained by economic reality, these therapeutic advances will have only limited benefit outside the U.S. and Western Europe.

单选题The first thing to notice is that the media we're all familiar with—from books to television are one-way propositions: they push their content at us. The Web is two-way, push and pull. In finer point, it combines the one-way reach of broadcast with the two-way reciprocity (互惠) of a mid-cast. Indeed, its user can at once be a receiver and sender of broadcast—a confusing property, but mind-stretching! A second aspect of the Web is that it is the first medium that honors the notion of multiple intelligences. This past century's concept of literacy grew out of our intense belief in text, a focus enhanced by the power of one particular technology—the typewriter. It became a great tool for writers but a terrible one for other creative activities such as sketching, painting, notating music, or even mathematics. The typewriter prized one particular kind of intelligence, but with the Web, we suddenly have a medium that honors multiple forms of intelligence—abstract, textual, visual, musical, social, and kinesthetic. As educators, we now have a chance to construct a medium that enables all young people to become engaged in their ideal way of learning. The Web affords the match we need between a medium and how a particular person learns. A third and unusual aspect of the Web is that it leverages (起杠杆作用) the small efforts of the many with the large efforts of the few. For example, researchers in the Maricopa County Community College system in Phoenix have found a way to link a set of senior citizens with pupils in the Longview Elementary School, as helper-mentors (顾问). It's wonderful to see kids listen to these grandparents better than they do to their own parents, the mentoring really helps their teachers, and the seniors create a sense of meaning for themselves. Thus, the small efforts of the many—the seniors—complement the large efforts of the few—the teachers. The same thing can be found in operation at Hewlett-Pack- ard, where engineers use the Web to help kids with science or math problems. Both of these examples barely scratch the surface as we think about what's possible when we start interlacing resources with needs across a whole region.

单选题We can't {{U}}rule out{{/U}} the possibility that he was murdered by his wife.

单选题Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the water is too acid, the gill systems of many kinds of fish can be damaged. (61) , the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases (62) becomes extinct. Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the (63) salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also (64) in the waters of Ontario and Quebec, where fish populations are (65) the decline. What potential remedies exist for the acid rain (66) ? The experts disagree. Some say new environmental laws should be (67) to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned (68) to prevent it. (69) , all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another (70) is that special scrubbers could be installed in smokestacks to remove a good (71) of the pollutants before they get into the atmosphere. Other ideas even include breeding more (72) fish. And research suggests that spreading lime into lakes may be effective in (73) acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a (74) of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we (75) what we know now.

单选题Text Two Phrases: A. introduce you to our 62 facilities B. check out 63 five books C. houses our humanities and map 64 Welcome to the university library. This tour will 65 . First of all, the library’s collection of books, reference materials, and other resources are found on levels one to four of this building. Level one 66 . On level two, you will find our circulation desk, current periodicals and journals, and our copy facilities. Our science and engineering sections can be found on level three. Finally, group study rooms and the multimedia center are located on level four. Undergraduate students can 67 for two weeks. Graduate students can check out fifteen books for two months. Books can be renewed up to two times.

单选题The National Education Association claims. "The school bus is a mirror of the community." They further add that, unfortunately, what appears on the exterior does not always reflect the reality of a chosen community. They are right--sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl. Bruce Hardy, school bus driver for Althouse BUS Company, has been Liesl's bus driver since kindergarten. Last year when Liesl's family moved to Parkesburg, knowing her bus went by her new residence, she requested to ride the same bus. This year Liesl is a senior and will enjoy her last year, riding the bus. She says, "It's been a great ride so far ! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you're a child adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say and makes you feel important." Her friends Ashley Batista and Amanda Wolfe agree. Bruce Hardy has been making Octorara students feel special since 1975. This year he will celebrate 30 years working for Althouse Bus Company, Larry Althouso, president of the company, acknowledges Bruce Hardy's outstanding record . "You do not come by employees like Bruce these days. He has never missed a day of work and has a perfect driving record. He was recognized in 2000 by the Pennsylvania School Bus Association for driving 350 000 accident free miles. Hardy's reputation is made further evident through the relationships he has made with the students that ride his bus." Althouse further adds, "Althouse Bus Company was established 70 years ago and has been providing quality transportation ever since. My grandfather started the business with one bus. Althouse Bus Company is delighted to have the opportunity to bring distinctive and safe service to our local school and community and looks forward to continuing to provide quality service for many more years to come." Three generations of business is not all the company has enjoyed. Thanks to drivers like Bruce Hardy, they have been building relationships through generations, Liesl's mother Carol also enjoys fond memories of riding Bruce Hardy's bus to the Octorara School District.

单选题A: That'll be $6.75.B: ______

单选题Gazing at others" eyes generally signals a request for information and perhaps affection, but embarrassment can result from too long a mutual gaze.

单选题If hotel officials saw Paul was intoxicated, as some employees reportedly said last week, why did they let him drive?

单选题The defense lawyer was questioning the old man who was one of the ______ of the murder committed last month.

单选题The wandering ship was a dramatic symbol for a problem plaguing our age. In 1987, the ship, loaded with thousands of tons of New York garbage, spent weeks wandering from one port to another in search of a dump before finally returning home, mission unaccomplished. New York, like other communities throughout the world is running out of space to put its trash. As throwaway societies, the US and other industrialized countries expect their garbage to be picked up by trucks that magically transported the refuse to some out-of-sight incinerator(焚化炉) or dump. But in the developing counties of Asia, Africa and Latin America, thousands of tons of trash collected daily are thrown into open dumps, where it feeds huge populations of rats that swarm through poor neighborhoods. "The world is literally swimming in garbage," says a scientist, "Communities worldwide are being forced to confront the problem." Green Peace spokesman Bryan Bence adds, "The crisis in garbage stems in part from the fact that we've ignored long-term disposal problem in favor of cheap quick fixes." The garbage glut (过选剩) has inspired many communities in the U.S., Japan and Western Europe to start recycling programs. Once considered a curious counter culture activity recycling has moved firmly into the mainstream. Recycling involves separating usable products from trash, processing them so they can be substituted for more expensive raw materials and returning them to the marketplace as parts of new products. Many countries now have mandatory recycling programs, and others plan to follow the trend soon. Most notably, Japan has stood out as a model and leader of the waste management trend, recycling an estimated 65 percent of its waste. "That's what we should do, to the garbage crisis", says David Antonioli, a staff member with the New York Public Interest Research Corp. "The earth is not a dump!/

单选题The ______of a sales tax is that it decreases government reliance on income taxes.

单选题Tom is reliable, so you can count on him.

单选题Finding out about these universities has become easy for anyone with Internet ______

单选题Man: We're looking for a place to hold a surprise party for Jill. There's a lot of space in your apartment, isn't there?Woman: There used to be. You see, well, I just can't bring myself to throw anything away.Question: What does the woman imply?

单选题What is the author's tone about eating chocolates?

单选题We want you to describe all the events of that morning in sequence without any delay.