单选题The market for dust masks and air purifiers is ______ in Beijing because the capital has been shrouded for several days in thick fog and haze. A. booming B. looming C. dooming D. zooming

单选题The January fashion show, called FutureFashion, exemplified how far green design has come. Organized by the New York-based nonprofit Earth Pledge, the show inspired many top designers to work with sustainable fabrics for the first time. Several have since made pledges to include organic fabrics in their lines. The designers who undertake green fashion still face many challenges. Scott Hahn, cofounder with Gregory of Rogan and Loomstate, which uses all-organic cotton, says high-quality sustainable materials can still be tough to find. " Most designers with existing labels are finding there aren't comparable fabrics that can just replace what you're doing and what your customers are used to," he says. For example, organic cotton and non-organic cotton are virtually indistinguishable once woven into a dress. But some popular synthetics, like stretch nylon, still have few eco-friendly equivalents. Those who do make the switch are finding they have more support. Last year the influential trade show Designers & Agents stopped charging its participation fee for young green entrepreneurs who attend its two springtime shows in Los Angeles and New York and gave special recognition to designers whose collections are at least 25% sustainable. It now counts more than 50 green designers, up from fewer than a dozen two years ago. This week Wal-Mart is set to announce a major initiative aimed at helping cotton farmers go organic: it will buy transitional (过渡型的) cotton at higher prices, thus helping to expand the supply of a key sustainable material. " Mainstream is about to occur," says Hahn. Some analysts are less sure. Among consumers, only 18% are even aware that ecofashion exists, up from 6% four years ago. Natalie Hormilla, a fashion writer, is an example of the unconverted consumer. When asked if she owned any sustainable clothes, she replied: "Not that I'm aware of. " Like most consumers, she finds little time to shop, and when she does, she's on the hunt for "cute stuff that isn't too expensive. " By her own admission, green just isn't yet on her mind. But—thanks to the combined efforts of designers, retailers and suppliers—one day it will be.

单选题Lithography (平版印刷术) is an art process of printing from a plane surface on which the image to be printed is ink-receptive and the blank area ink-repellent. Lithography is based on the antipathy of oil and water. A drawing is made in reverse on the ground surface of the stone with a crayon or ink that contains soap or grease. The image produced on the stone will accept printing ink and reject water. Once the grease in the ink has penetrated the stone, the drawing is washed off and the stone kept moist. It is then inked with a roller and printed on a lithographic press. As a process, lithography is probably the most unrestricted, allowing a wide range of tones and effects. Several hundred fine prints can be taken from a stone. The medium was employed by many 19 th century artists, including Goya, Delacroix, Daumier, Degas, and remains popular with contemporary artists. Among American artists noted for their lithographs are Currier and Ives. The Currier and Ives firm of lithographers was founded Nathaniel Currier in 1834. James Ives joined the firm as a bookkeeper eighteen years later just after becoming Currier"s brother-in-law, and was made a partner in 1857. The pair showed an uncanny (神秘的) ability to predict what the American public would rash to buy in the way of cheap art, and literally hundreds of thousands of prints from as many as 7,000 individual pictures were turned out and sold from the firm"s shop in lower New York by street vendors and over shop counters throughout the country and even in Europe. Though in the course of time the firm employed some of America"s finest artists, artistic excellence could certainly not be counted among the firm"s real goals. Nevertheless, some time after it went out of business in 1907, the prints enjoyed new popularity as collectors" items, the rarer examples fetching thousands of dollars in the 1920"s.

单选题His doctor suggested that he ______ a short trip abroad.A. will takeB. would takeC. takeD. took

单选题Speaker A: Professor Lee, can I come to see you about my presentation this evening?Speaker B: ______ A. Yes. Is 8 o'clock a convenient time? B. Fine. Please come by Bus No.2. C. No. Never mind. D. Oh. That's my pleasure.

单选题How long ______ each other when they got married? A. had they known B. have they known C. would they know D. did they know

单选题How difficult it is______the modern world without oil.

单选题Thank you for all your hard work, I don't think we______it without you.

单选题In the absence of optimism, we are left with nothing but critics, naysayers, and prophets of doom. When a nation expects the worst from its people and institutions, and its experts focus exclusively on faults, hope dies. Too many people spend too much time looking down rather than up, finding fault with their country's political institutions, economic system, educational establishment, religious organizations, and—worst of all—with each other. Faultfinding expends so much negative energy that nothing is left over for positive action. It takes courage and strength to solve the genuine problems that afflict every society. Sure, there will always be things that need fixing. But the question is, do you want to spend your time and energy tearing things down or building them up? The staging of a Broadway show could illustrate my point. Let's say a new production is about to open. A playwright has polished the script, investor have put up the money,and the theater has been rented. A director has been chosen, actors have been auditioned and selected, and the cast has been rehearsing for weeks. Set, lighting, and sound engineers have been hard at work. By the time opening night arrives, nearly a hundred people have labored tirelessly—all working long hours to make magic for their audience. On opening night, four or five critics sit in the audience. If they pan it, the play will probably close in a matter of days or weeks. If they praise it, the production could go on for a long and successful run. In the end, success or failure might hinge on the opinion of a single person—someone who might be in a bad mood on opening night! What's wrong with this scene? In one sense, nothing. Critics have a legitimate role. The problem arises when we make critics our heroes or put them in control of our fate. When we empower the criti cmore than the playwright, something is wrong. It is much easier to criticize than to create.When we revere the critics of society, we eventually become a society of critics, and when that happens, there is no room left for constructive optimism.

单选题In the following part immediately after this text, the author will most probably focus on ______.

单选题When Elephants Paint is a book ______.

单选题What can be predicted from the last paragraph?

单选题______inflation, driven by rising food and oil costs, is striking hardest at the world"s poorest, who are forced to spend 60 to 80 percent of their income on food.

单选题Early this week a bit of cheery news was reported by the Manhattan Institute, a conservative think tank: black segregation has hit its lowest point in more than a century — declining in all 85 of the nation"s largest metropolitan areas. Nevertheless, the report is largely celebratory in tone, and it has been received in that fashion by much of the news media. Before we break out the champagne, however, it may be wise to pause and reflect for a moment on who was excluded from the analysis. Our nation"s prison population has more than quintupled (soaring from 300, 000 in the mid-1970s to more than 2 million today), due to a "get tough" movement and a war on drugs that has been waged almost exclusively in poor communities of color. Studies have consistently shown that people of color are no more likely to use or sell illegal drugs than whites, but a fierce drug war has been waged nonetheless, and harsh mandatory minimum sentences passed, leading to a prison-building boom unprecedented in world history. Despite this sea change, prisoners continue to be treated as nonentities in much sociological and economic analysis. In the Manhattan Institute study, prisoners are not even mentioned, despite the fact that millions of poor people — overwhelmingly people of color — are removed from their communities and held in prisons, often hundreds of miles from home. Most new prison construction has occurred in predominately white, rural communities, and thus a new form of segregation has emerged in recent years. Bars and walls keep hundreds of thousands away from mainstream society — a form of apartheid unlike the world has even seen. If all of them suddenly returned, they would not be evenly throughout the nation"s population. Instead they would return to a relatively small number of communities defined by race and class, greatly intensifying the levels of segregation we see today. Those who imagine that the failure to account for prisoners can"t possibly affect the analysis would be wise to consider the distortion of unemployment figures in recent years. According to Harvard professor Bruce Western, standard unemployment figures underestimate the true jobless rate by as much as 24 percentage points for less educated black men. In fact, during the 1990s — the economic-boom years — no college black men were the only group that experienced a sharp increase in unemployment, a development directly traceable to the sudden explosion of the prison population. At the same time that unemployment rates were sinking to record low levels for the general population, the true jobless rate among no college black men soared to a staggering 42%. Prisoners do matter when analyzing the severity of racial inequality in the U. S. Yet because they are out of sight and out of mind, it is easy to imagine that we are making far more racial progress than we actually are. For now, let"s keep the cork in the bottle and pray that we will eventually awaken from our color-blind slumber to the persistent realities of race in America.

单选题Undergraduate students can have ______to several books at a time in the school library.

单选题Pop culture doesn't _________ to strict rules; it enjoys being jazzy, unpredictable, chaotic.

单选题In addition, findings reveal that males receive more teacher attention than females, boys receive more specific comments about their academic performance, that there are differences favoring males in task assignment, in teacher's expectation of student's behavior based on gender, as well as in such areas as overall curriculum design, classroom activities, and educational tracking (particularly in math, science, vocational courses, and extracurricular activities). A. that there are differences B. favoring males C. teacher's expectation of student's behavior D. and extracurricular activities

单选题Joane- Hey, you look concerned, ______？ Harry：The final exam. I'm not fully prepared yet. A. What's on your mind B. What a lovely day C. What has attracted you D. What about seeing the doctor

单选题Most people who travel long distance complain of jetlag. Jetlag makes business travelers less productive and more prone (21) making mistakes. It is actually caused by (22) of your "body clock" --a small cluster of brain cells that controls the timing of biological (23) . The body clock is designed for a (24) rhythm of daylight and darkness, so that it is thrown out of balance when it (25) daylight and darkness at the "wrong" times in a new time zone. The (26) of jetlag often persist for days (27) the internal body clock slowly adjusts to the new time zone. Now a new anti-jetlag system is (28) that is based on proven (29) pioneering scientific research. Dr, Martin Mooreede had (30) a practical strategy to adjust the body clock much sooner to the new time zone (31) controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates (32) of the discomfort of jetlag. A successful time zone shift depends on knowing the exact times to either (33) or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule (34) light exposure depends a great deal on (35) travel plans.