单选题The renaissance was a(n) ______ of unparalleled cultural achievement and had a great impact on almost all European countries. A. moment B. dynasty C. instant D. epoch

单选题Manyoftheearliest______intotheUnitedStatesestablishedlargeplantations.

单选题He was stabbed with a bayonet by his enemy.

单选题A few simple ______ to this plan would greatly improve it.

单选题Society is a (joint-stock) company, in which the members agree, (for) the better (securing of )bread for each shareholder, (to surrender to) the liberty and culture of each individual.

单选题Walking, gardening, collecting stamps, and reading are quiet forms of______.

单选题{{B}}Passage Three{{/B}} Successful business tends to continue implementing the ideas that made them successful. But in a rapidly changing world, ideas often become obsolete overnight. What worked in the past won't necessarily work in the future. In order to thrive in the future, you must constantly create new ideas for every aspect of your business. In fact, you must continually generate new ideas just to keep your head above water. Businesses that aren't creative about their future may not survive. Although Bill Gates is the richest, most successful man on the planet, he did not anticipate the Internet. Now he's scrambling to catch up. If Bill Gates can miss a major aspect of his industry, it can happen to you in your industry. Your business needs to continually innovate and create its future. Gates is now constantly worried about the future of Microsoft. Here's what he said in a recent interview in U.S. News World Report: "Will we be replaced tomorrow? No. In a very short time frame, Microsoft is an incredibly strong company. But when you look to the two to three-year time frame, I don't think anyone can say with a straight face that any technology company has a guaranteed position. Not Intel, not Microsoft, not Compaq, not Dell, take any of your favorites. And that's totally honest." You may remember that in 1985 the Cabbage Patch Kids dolls were the best-selling toy on the market. But after Coleco Industries introduced their sensational line of dolls they became complacent and didn't create any new toys worth mentioning. As a result, Coleco went bankrupt in 1988. The most successful businesses survive in the long term because they constantly reassess their situations and reinvest themselves accordingly. The 3M Company has a 15% rule: Employees are encouraged to spend 15% of their time developing new ideas on any project they desire. It's no surprise, then, that 3M has been around since 1902. Most businesses are not willing to tear apart last year's model of success and build a new one. Here's a familiar analogy to explain why they are lulled into complacency; imagine that your business is like a pot of lobsters. To cook lobsters, you put them into a pot of warm water and gradually turn up the heat. The lobsters don't realize they're being cooked because the process is so gradual. As a result, they become complacent and die without a struggle. However, if you throw a lobster into the pot when the water is boiling, it will desperately try to escape. This lobster is not lulled by a slowly changing environment. It realizes instantly that it's in a bad environment and takes immediate action to change its status.

单选题If you plant two apple trees in one square yard of land, and the trees' productivity ______ decline.

单选题Regular use of this moistening cream will help to ______ the rough, dry condition of your skin. A. alleviate B. abstract C. evaporate D. abbreviate

单选题Though ______ rich, ha was better off than at any other period in his life. [A] by any means [B] by some means [C] by all means [D] by no means

单选题Everyone in American these days seems to be______with his or her physical fitness, and everyone is talking about getting in shape.

单选题Right now there is a sale of 19th-century European Paintings and sculpture in the museum.(清华大学2006年试题)

单选题The______prevents the people in the two neighboring nations from living in peace.

单选题The history of African—Americans during the past 400 years is traditionally narrated (41) an ongoing straggle against (42) and indifference on the part of the American mainstream, and a struggle (43) as an upward movement is (44) toward ever more justice and opportunity. Technology in and of (45) is not at fault; it's much too simple to say that gunpowder or agricultural machinery or fiber optics (46) been the enemy of an (47) group of people. A certain machine is put (48) work in a certain way--the purpose (49) which it was designed. The people who design the machines are not intent on unleashing chaos; they are usually trying to (50) a task more quickly, cleanly, or cheaply, (51) the imperative of innovation and efficiency that has ruled Western civilization (52) the Renaissance. Mastery of technology is second only (53) money as the true measure of accomplishment in this country, and it is very likely that by (54) this under-representation in the technological realm, and by not questioning and examining the folkways that have (55) it, blacks are allowing (56) to be kept out of the mainstream once again. This time, however, they will be (57) from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs (58) ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city. And blacks must change as well. Tile ways that (59) their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks (60) to survive as full participants in this society, they have to understand what works now.

单选题She bought a house near the sea last year she could take a ______ along the beach whenever she wanted to. A.stroll B.stride C.stretch D.strand

单选题Hotels and restaurants are an ______ part of the city; without them the city's tourist industry can not exist.

单选题Biotechnology enables us ______.

单选题Telecommuting, ______ the computer for the trip to the job, has been hailed as a solution to all kinds of problems related to office work.

单选题Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics—the science of conferring various human capabilities on machines. And if scientists have yet to create the mechanical version of science fiction, they have begun to come close. As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much human labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robot-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with submillimetre accuracy—far greater precision than highly skilled physicians can achieve with their hands alone. But if robots are to reach the next stage of laborsaving utility, they will have to operate with less human supervision and be able to make at least a few decisions for themselves — goals that pose a real challenge. "While we know how to tell a robot to handle a specific error," says Dave Lavery, manager of a robotics program at NASA, "we can't yet give a robot enough 'common sense' to reliably interact with a dynamic world." Indeed the quest for true artificial intelligence has produced very mixed results. Despite a spell of initial optimism in the 1960s and 1970s when it appeared that transistor circuits and microprocessors might be able to copy the action of the human brain by the year 2010, researchers lately have begun to extend that forecast by decades if not centuries. What they found, in attempting to model thought, is that the human brain's roughly one hundred billion nerve cells are much more talented — and human perception far more complicated — than previously imagined. They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment. But the human mind can glimpse a rapidly changing scene and immediately disregard the 98 percent that is irrelevant, instantaneously focusing on the monkey at the side of a winding forest road or the single suspicious face in a big crowd. The most advanced computer systems on Earth can't approach that kind of ability, and neuroscientists still don't know quite how we do it.