单选题The story of Peter Pan is so Ufascinating/U that all the children like it.

单选题Text 1 It's hard to say for sure what the next big thing will be, but these items made the list of 10 emerging technology trends that will change the world, according to the January issue of the Massachusetts Institute of Technology Magazine Technology Review. "We were looking for things that were just emerging now and over the next five years would begin to have a major impact", David Rotman, the magazine's deputy editor, said Thursday. Some of the items have been on the verge of widespread use for quite some time, such as biometrics and speech recognition. Others chosen by the MIT magazine editors are topics that most people have never heard of, such as microphotonics and microfluidics. The magazine focused on developments in three areas: information technology, nanotechnology and biotechnology. One significant area in biotechnology, the magazine highlights, is work on brain-machine interfaces that could someday allow people to control artificial devices that replace lost functions. Today, research is more limited, with scientists able to take signals from individual neurons in an animal's brain and send them to a robot that can turn the signals into motion. But the potential is huge, according to Duke University neurobiologist Miguel Nicolelis. "Imagine if someone could do for the brain what the pacemaker did for the heart." Nicolelis told the MIT journal. In the purely digital realm, the magazine suggests that the field of robotics could be poised to move beyond the restricted market of Performing simple, highly repetitive tasks. "Robot builders make a convincing case that in 2001, robots are where personal computers were in 1980", writes Technology Review senior editor David Talbot, "poised to break into the marketplace as common corporate tools and routine consumer products performing life's tedious chores." Until now the problem has been that robots have been costly and difficult to design. One approach that the magazine highlights is the work of Brandeis University researcher Jordan Pollack, who builds robots that can build other robots.

单选题Biologists estimate that as many as 2 million lesser prairie chickens—a kind of bird living on stretching grasslands—once lent red to the often grey landscape of the midwestern and southwestern United States. But just some 22,000 birds remain today, occupying about 16% of the species" historic range. The crash was a major reason the U.S. Fish and Wildlife Service (USFWS) decided to formally list the bird as threatened. "The lesser prairie chicken is in a desperate situation," said USFWS Director Daniel Ashe. Some environmentalists, however, were disappointed. They had pushed the agency to designate the bird as "endangered", a status that gives federal officials greater regulatory power to crack down on threats. But Ashe and others argued that the "threatened" tag gave the federal government flexibility to try out new, potentially less confrontational conservations approaches. In particular, they called for forging closer collaborations with western state governments, which are often uneasy with federal action, and with the private landowners who control an estimated 95% of the prairie chicken"s habitat. Under the plan, for example, the agency said it would not prosecute landowner or businesses that unintentionally kill, harm, or disturb the bird, as long as they had signed a range-wide management plan to restore prairie chicken habitat. Negotiated by USFWS and the states, the plan requires individuals and businesses that damage habitat as part of their operations to pay into a fund to replace every acre destroyed with 2 new acres of suitable habitat. The fund will also be used to compensate landowners who set aside habitat. USFWS also set an interim goal of restoring prairie chicken populations to an annual average of 67,000 birds over the next 10 years. And it gives the Western Association of Fish and Wildlife Agencies (WAFWA), a coalition of state agencies, the job of monitoring progress. Overall, the idea is to let "states remain in the driver"s seat for managing the species," Ashe said. Not everyone buys the win-win rhetoric. Some Congress members are trying to block the plan, and at least a dozen industry groups, four states, and three environmental groups are challenging it in federal court. Not surprisingly, industry groups and states generally argue it goes too far, environmentalists say it doesn"t go far enough. "The federal government is giving responsibility for managing the bird to the same industries that are pushing it to extinction." says biologist Jay Lininger.

单选题His eighth book came out earlier this year and was a(n)______bestseller.(四川大学2010年试题)

单选题{{B}}Text 3{{/B}} In old days, when a glimpse of stocking was looked upon as something far too shocking to distract the serious work of an office, secretaries were men. Then came the first World War and the male secretaries were replaced by women. A man's secretary became his personal servant, charged with remembering his wife's birthday and buying her presents; taking his suits to the dry cleaners; telling lies on the telephone to keep people he did not wish to speak to at bay and, of course, typing and filing and taking shorthand. Now all this may be changing again. The microchip and high technology is sweeping the British office, taking with it much of the routine clerical work that secretaries did. "Once office technology takes over generally, the status of the job will rise again because it will involve only the high-powered work-and then men will want to do it again." That was said by one of the executives(male) of one of the biggest secretarial agencies in this country. What he has predicted is already under way in the US. One girl described to me a recent temporary job placing men in secretarial jobs in San Francisco. She noted that all the men she dealt with appeared to be gay so possibly that is just a new twist to the old story. Over here, though, there are men coming onto the job market as secretaries. Classically, girls have learned shorthand and typing and gone into a company to seek their fortune from the bottom——and that's what happened to John Bowman. Although he joined a national grocery chain as secretary to its first woman senior manager, he has since been promoted to an administration job. "I filled in the application form and said I could do audio/typing, and in fact I was the only applicant. The girls were reluctant to work for this young, glamorous new woman with all this power in the firm. " "I did typing at school, and then a commercial course. I just thought it would be useful finding a job. I never got any funny treatment from the girls, though I admit I've never met another male secretary. But then I joined the Post Office as a clerk and carelessly played with the typewriter, and wrote letters, and thought that after all secretaries were getting a good ￡1,000 a year more than clerks like me. There was a shortage at that time, you see. " "It was simpler working for a woman than for a man. I found she made decisions, she told everybody what she thought, and there was none of that stuff' ring this number for me dear, which men go in for." "Don't forget, we were a team—that's how I about it—not boss and servant but two people doing different things for the same purpose." Once high technology has made the job of secretary less routine, will there be male takeover? Men should beware of thinking that they can walk right into the better jobs. There are a lot of women secretaries who will do the job as well as they because they are as efficient and well trained to cope with word processors and computers, and men.

单选题______ "hello", he reached out his hand.

单选题Which one is the most suitable title for this small piece of article?

单选题This passage is probably taken from a book on ______.

单选题In November the European Parliament's culture and education committee is due to move forward on its proposed "audiovisual media services" directive, before sending it to the full parliament in December. The new rules update and relax the "Television Without Frontiers" directive of 1989, which opened Europe's national markets. But critics complain that they also seek to extend fusty regulations from the era of broadcast television to today's very different technologies. Rules on advertising, the protection of children and so on could potentially also apply to all kinds of video streams, including video blogs, online games and mobile-video services. This could have a chilling effect on innovation and risks stifling emerging technologies with rules designed for another age, says Chris Marsden of RAND Europe, a think-tank that has analysed the potential impact of the proposed rules for Ofcom, Britain's media and telecoms regulator. "Regulators have to be thoughtful. They cannot predict the future of television "or the internet—no one can," says Niklas Zennstr. m, a co-founder of Skype, who is now setting up an internet television firm. The proposed rules may be unrealistic as well as onerous. The idea that websites can be regulated like broadcasters, which are required to keep strict records of what they show in order to help watchdogs investigate complaints, is untenable. Firms could simply relocate outside the European Union to escape the new rules. Last week Ruth Hieronymi, a member of parliament, said she would introduce wording that might help to overcome some of the objections. Behind the debate is the question of how best to balance competition and protection. Traditional broadcasters worry that they will be shackled by regulations while brisk start-ups can do as they please—so they like the idea of extending regulation to their new rivals. But even if the rules are approved as they stand, they will not come into force until 2010. Such a long, slow process seems incongruous given the pace of technological change.

单选题He is always full of ______ as though he never knew tiredness. A．strength B．energy C．force D．power

单选题She went for a swim in the pool yesterday and Ill do ______ this afternoon. A．it B．such C．same D．the same

单选题I 'm sorry I have ( ) Dictionary. You'd better go to the library.

单选题Editors of the world"s leading scientific journals announced Saturday they would delete details from published studies that might help terrorists make biological weapons. The editors, joined by several prominent scientists, said they would not censor scientific data or adopt a top-secret classification system similar to that used by the military and government intelligence agencies. But they said scientists working in the post-Sept. 11 world must face the dismaying paradox that many of their impressive breakthroughs can be used for sinister purposes. The new editing methods will be voluntary and will differ among the 32 publications and scientific associations that agreed to the effort. Those include the journals Science, Nature, Proceedings of the National Academies of Science, The New England Journal of Medicine and The Lancet. Most major advancements—from decoding the human genome to the cloning of Dolly the sheep—are revealed to the world through those journals. The new policy emerged from a Jan. 9 meeting at the National Academy of Sciences where researchers and journal editors reviewed potentially sensitive studies. They unveiled their agreement at the national meeting of the American Association for the Advancement of Science. Proponents acknowledged they are walking a " very fine line" in trying to protect the public without chilling research. Few, if any, of the thousands of research papers reviewed annually for publication would be rejected outright, they said. Papers would still contain sufficient details to allow other scientists to independently duplicate experiments—a vital step in validation discoveries. " We do live in different times now, " said Ronald Atlas, president of the American Society of Microbiology and a leader of the biosecurity review movement. "The information we possess has the potential for misuse. We will take the appropriate steps to protect the public. " Indeed, it has never been easier to tweak a microbe"s genes to create a deadlier, drug-resistant superbug for a germ bomb or hijack aerosol technology meant for convenient spray vaccines to make anthrax spores float through the air. Journal editors said they were establishing their own expert panels to review papers that contain alarming information, and would work with the authors to make specific changes and "tone them down. " Most journals rarely face such questions. Atlas said journals published by the microbiology association found only two research papers in that past year that raised eyebrows, and both were published after the authors agreed to changes. One of the excised details demonstrated how a microbe could be modified so it could kill 1 million people instead of 10, 000. "It was something that was best not told, " Atlas said. He declined to identify the microbe.

单选题First of all, this difficult problem has to be tackled, thus ______ us to proceed to the others.

单选题It is advisable to ______ an electric wire with rubber in order to secure safety. A. desolate B. resolute C. insolate D. insulate

单选题Seldom______ his wife punish her children for speaking out their own ideas freely.

单选题The university offered several more courses for the purpose of furthering the career {{U}}aspirations{{/U}} of its students.

单选题Low-level slash-and-burn farming doesn"t harm rainforest. On the contrary, it helps farmers and improves forest soils. This is the unorthodox view of a German soil scientist who has shown that burnt clearings in the Amazon, dating back more than 1,000 years, helped create patches of rich, fertile soil that farmers still benefit from today. Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor. This means topsoil contains few of the ingredients needed for long-term successful farming. But Bruno Glaser, a soil scientist of the University of Bayreuth, has studied unexpected patches of fertile soils in the central Amazon. These soils contain lots of organic matter. Glaser has shown that most of this fertile organic matter comes from "black carbon" —the organic particles from camp fires and charred wood left over from thousands of years of slash-and-burn farming. "The soils, known as Terra Preta, contained up to 70 times more black carbon than the surrounding soil." says Glaser. Unburnt vegetation rots quickly, but black carbon persists in the soil for many centuries. Radiocarbon dating shows that the charred wood in Terra Preta soils is typically more than 1,000 years old. "Slash-and-burn farming can be good for soils provided it doesn"t completely burn all the vegetation, and leaves behind charred wood," says Glaser. "It can be better than manure." Burning the forest just once can leave behind enough black carbon to keep the soil fertile for thousands of years. And rainforests easily regrow after small-scale clearing. Contrary to the conventional view that human activities damage the environment, Glaser says: "Black carbon combined with human wastes is responsible for the richness of Terra Preta soils." Terra Preta soils turn up in large patches all over the Amazon, where they are highly prized by farmers. All the patches fall within 500 square kilometers in the central Amazon. Glaser says the widespread presence of pottery confirms the soil"s human origins. The findings add weight to the theory that large areas of the Amazon have recovered so well from past periods of agricultural use that the regrowth has been mistaken by generations of biologists for" virgin" forest. During the past decade, researchers have discovered hundreds of large earth works deep in the jungle. They are up to 20 meters high and cover up to a square kilometer. Glaser claims that these earth works, built between AD 400 and 1400, were at the heart of urban civilizations. Now it seems the richness of the Terra Preta soils may explain how such civilizations managed to feed themselves.