单选题Researchers from the Shaare Zedek Medical Center and Bar-Ilan University just released a report explaining how a new type of eye drop 27 with 'nanoparticles' could replace the need for glasses or contacts. It's a bit 28 and requires a brief doctor visit, but it apparently works like a charm. The three-step process starts with a 29 of the individual's eye refraction (屈光度), which can be performed with a smartphone. Then, doctors create a very specific laser pattern which is applied to the eye for less than one second. The laser creates tiny 30 in the surface of the cornea. Lastly, special eye drops are applied. 'These nanoparticles go into the shallow ablated patterns generated on the surface of the cornea,' Zeev Zalevsky explained to Digital Trends. 'They change the refraction index inside of those patterns. This corrects the 31 problem the user has. The process of correction can be done at home without the need of a medical doctor.' The procedure is less 32 than traditional laser eye surgery in that it only affects the exterior of the eye and does not require an extensive procedure. However, because the 33 to the eye are so minor, the tiny etchings in the cornea eventually heal themselves and vision 34 degrades. The researchers believe the positive effects of the treatment will last one to two months. Heading to the eye doctor for a reapplication of the laser every two months sounds pretty 35 , but the technology is still in its infancy. Going forward, the researchers are planning additional testing and hope to have something 36 a commercial product available within the next two years. A. alterations B. bacteria C. completely D. complicated E. damaged F. grooves G. inconvenient H. infused I. invasive J. measurement K. resembling L. subsequently M. treat N. visual O. weird

单选题People don't rely on specialized labor so much nowadays because______.

单选题No sooner had she got home ______ she tried on her new coat.

单选题下面的短文后列出了10个句子，请根据短文的内容对每个句子作出判断：如果该句提的是正确信息，选择A；如果该句提供的是错误信息，选择B；如果该句的信息文中没有提及，选择C，并将所选答案的代码（指A、B或C）填在答题纸的相应位置上。Red Nose Day　　Red Nose Day （RND） is a well-known event in the UK.The aim of the clay is

单选题It has been argued that where schools become bureaucratized, they become bound up with the techniques and implementation of the managerial process, and may concentrate on concem with position and self-advancement．In so doing, they may neglect the purpose for which they were set up． Thus, they do not facilitate the development of those who are part of the school community, and tend to neglect the desires of children, parents and society at large． It is because of such criticisms that there has been an increasing influence in political rhetoric and legislation of free-market theories of organization and society．Such theories suggest that a much more market-oriented, competitive approach is required so that schools reorient themselves towards their"clients"．By so doing, it is claimed, not only do they once again address the needs of those with whom they should be primarily concemed, but such an approach also unleashes the benefits of individual responsibility,freedom of choice, and reward． Though much of this sounds attractive, it has its roots as much in an econOmic bodv of thought as in SOCial and political theory,and this must raise the question of whether it can be viablv transferred to an educational context．Indeed, if by"educational"we mean the development of all within the school community,then free—market theory may miss the mark by concentrating on onlv one section, "the consumers"．If teachers are seen as part of this community,then their develoDment is just as important． If bureaucratic forms of management face the problem of explaining how their values can be objective when they are in fact the product of a particular value orientation, the forrns of management derived from free—market theories，suggesting an openness to the adoption of different sets of values，are subject to the charge of relativism．In other words，free-market theories，granted that thev are arguing that individuals should be allowed to pursue their own ends，must explain why any set of values，including their own，is preferable to another．

单选题Californian Michael Schwabe said goodbye to the gas pump two years ago. He leased an electric car. Schwabe says he gets more out of driving an electric car than just a charge. "With the price of gasoline and with the problems with clean air, it's important we get electric vehicles out on the road." On California roads there are about two thousand electric cars. By 2003, ten percent of all new cars may be required to have zero emissions. This is a mandate automakers say it is way ahead of its time. Gloria Bergquist of the Alliance of Auto Manufacturers says, "The technology (for zero emissions) isn't here yet; it still needs advancement in driving range to make it more appealing to a wider consumer audience." Automakers blame it on the batteries. Power runs out on most cars after about 70 miles. However, some cars can now go more than 100 miles on a charge. Batteries are expensive. Carmakers say there is nothing they can do about it. Tim Carmichael of the Clean Air Coalition says, "The automakers have not built a vehicle unless required to do so, so it's very important for the state to stay committed to this program requiring automakers to build small amounts in beginning years and then the market will take off./

单选题James: I'm dreadfully sorry, Nita. I didn't mean to offend. Nita: ______ A. I've got nothing to say about it. B. Never mind. Forget it. C. OK, I see. D. Well, I'm much offended.

单选题You'll find that the community has ______ great changes since you were here last time. A. submitted B. sustained C. perceived D. undergone

单选题In the last century and a half, scientific development has been breathtaking, but the understanding of this progress has not ______ changed.

单选题The first textbook ______ for teaching English as a foreign language came out in the 16th century. A) writing B) written C) to write D) to be written

单选题On New Year's Eve, New York City holds an outdoor______which attracts a crowd of a million or more people. A. incident B. event C. case D. affair

单选题Woman: What a pleasant surprise! Last week we bumped into each other here too!Man: You and I must share the idea that the only way to beat the crowds when you do weekend shopping is to be here at the morning opening hour.Question: What does the man imply?

单选题Ann prefers hiking ______ the cinem

单选题______ team is made up of ten people.

单选题International ______ must be reduced before this treaty is signed.

单选题The longevity of successful companies is determined by______.

单选题Tom: Michael was late for Mr. Smith’s oral class this morning.Mike: ________ ? As far as I know, he never came late to class.

单选题此题为音频题

单选题 Green Growth A．The enrichment of previously poor countries is the most inspiring development of our time. It is also worrying. The environment is already under strain. What will happen when the global population rises from 7 billion today to 9.3 billion in 2050, as demographers(人口统计学家) expect, and a growing proportion of these people can afford goods that were once reserved for the elite? Can the planet support so much economic activity? B．Many policymakers adopt a top-down and Western-centric approach to such planetary problems. They discuss ambitious regulations in global forums, or look to giant multinationals and wealthy NGOs to set an example. But since most people live in the emerging world, it makes sense to look at what successful companies there are doing to make growth more sustainable. C．A new study by the World Economic Forum (WEF) and the Boston Consulting Group (BCG) identifies 16 emerging-market firms that they say are turning eco-consciousness into a source of competitive advantage. These highly profitable companies (which the study calls 'the new sustainability champions') are using greenery to reduce costs, motivate workers and forge relationships. Their home-grown ideas will probably be easier for their peers to copy than anything cooked up in the West. D．The most outstanding quality of these companies is that they turn limitations (of resources, labor and infrastructure) into opportunities. Thus, India's Shree Cement, which has long suffered from water shortages, developed the world's most water-efficient method for making cement, in part by using air-cooling rather than water-cooling. Manila Water, a utility in the Philippines, reduced the amount of water it was losing, through wastage and illegal tapping, from 63% in 1997 to 12% in 2010 by making water affordable for the poor. Broad Group, a Chinese maker of air conditioners, taps the waste heat from buildings to power its machines. Zhangzidao Fishery Group, a Chinese aquaculture (水产养殖 ) company, recycles uneaten fish feed to fertilize crops. E．Setting green goals is a common practice. Sekem, an Egyptian food producer, set itself the task of cultivating desert land through organic farming. Florida Ice Farm, a Costa Rican food and drink company, has adopted strict standards for the amount of water it can consume in producing drinks. F．These firms measure themselves by their greenery, too. Florida Ice Farm, for example, links 60% of its boss's pay to the triple bottom line of 'people, planet and profit'. The sustainability champions also encourage their workers to come up with green ideas. Natura, a Brazilian cosmetics company, gives bonuses to staff who find ways to reduce the firm's impact on the environment. Masisa, a Chilean forestry company, invites employees to 'imagine unimaginable businesses' aimed at poorer consumers. Woolworths, a South African retailer, claims that many of its best green ideas have come from staff, not bosses. G．In emerging markets it is hard for companies to stick to one specialism, because they have to worry about so many wider problems, from humble infrastructure to unreliable supply chains. So the sustainability champions seek to shape the business environment in which they operate. They lobby(游说) regulators: Grupo Balbo, a Brazilian organic-sugar producer, is working with the Brazilian government to establish a certification system for organic products. They form partnerships with governments and NGOs. Kenya's Equity Bank has formed an alliance with groups such as The International Fund for Agricultural Development to reduce its risks when lending to smallholders. Natura has worked with its suppliers to produce sustainable packaging, including a new 'green' plastic derived from sugar cane. H．The firms also work hard to reach and educate poor consumers, often sacrificing short-term profits to create future markets. Masisa organizes local carpenters into networks and connects them to low-income furniture buyers. Broad Group has developed a miniature device for measuring air pollution that can fit into mobile phones. Jain Irrigation, an Indian maker of irrigation systems, uses dance and song to explain the benefits of drip irrigation to farmers who can't read. Suntech, a Chinese solar-power company, has established a low-carbon museum to celebrate ways of reducing carbon-dioxide emissions. Rich because green, or green because rich? I．One could disagree with BCG's analysis. Phil Rosenzweig of Switzerland's IMD business school has argued that management writers are prone to 'the halo effect': they treat the temporary success of a company as proof that it has discovered some eternal principle of good management. The fact that some successful companies have embraced greenery does not prove that greenery makes a firm successful. Some firms, having prospered, find they can afford to go green. Some successful firms pursue greenery for public-relations purposes. And for every sustainable emerging champion, there are surely 100 firms that have prospered by releasing waste gas into the air or pumping toxins into rivers. J．Nonetheless, the central message of the WEF-BCG study—that some of the best emerging-world companies are combining profits with greenery—is thought-provoking. Many critics of environmentalism argue that it is a rich-world luxury: that the poor need adequate food before they need super-clean air. Some even see greenery as a rich-world trick: the West grew rich by industrializing (and polluting), but now wants to stop the rest of the world from following suit. The WEF-BCG report demonstrates that such fears are overblown. Emerging-world companies can be just as green as their Western rivals. Many have found that, when natural resources are scarce and consumers lack money, greenery can be a profitable business strategy.