单选题Trying to get Americans to eat a healthy diet is a frustrating business. Even the best- designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street--more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity. Now, health advocates say, an ill-conceived redesign has taken one of the more successful public-health campaigns--the Food Guide Pyramid--and rendered it confusing to the point of uselessness. Some of these critics worry that America' s Department of Agriculture caved in to pressure from parts of the food industry anxious to protect their products. The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of grains, vegetables and fruits, followed by ever-decreasing amounts of dairy products, meat, sweets and oils. The agriculture department launched the pyramid in 1992 to replace its previous program, which was centered on the idea of four basic food groups. The" Basic Four" campaign showed a plate divided into quarters, and seemed to imply that meat and dairy products should make up half of a healthy diet, with grains ,fruits and vegetables making up the other half. It was replaced only over the strenuous objections of the meat and dairy industries. The old pyramid was undoubtedly imperfect. It failed to distinguish between a doughnut and a whole-grain roll, or a hamburger and a skinless chicken breast, and it did not make clear exactly how much of each foodstuff to eat. It did, however, manage to convey the basic idea of proper proportions in an easily understandable way. The new pyramid, called" My Pyramid", abandons the effort to provide this information. Instead, it has been simplified to a mere logo. The food groups are replaced with unlabelled, multi-colored vertical stripes which, in some versions, rise out of a cartoon jumble of foods that look like the aftermath of a riot at a grocery store. Anyone who wants to see how this translates into a healthy diet is invited to go to a website, put in their age, sex and activity level, and get a custom-designed pyramid, complete with healthy food choices and suggested portion sizes. This is fine for those who are motivated, but might prove too much effort for those who most need such information. Admittedly, the designers of the new pyramid had a tough job to do. They were supposed to condense the advice in the 84-page United States' Dietary Guidelines into a simple, meaningful graphic suitable for printing on the back of a cereal box. And they had to do this in the face of pressure from dozens of special interest groups--from the country' s Potato Board, which thought potatoes would look nice in the picture, to the Mmond Board of California, which felt the same way about almonds. Even the National Watermelon Promotion Board and the California Avocado Commission were eager to see their products recognized. Nevertheless ,many health advocates believe the new graphic is a missed opportunity. Mthough officials insist industry pressure had nothing to do with the eventual design, some critics suspect that political influence was at work. On the other hand, it is not clear how much good even the best graphic could do. Surveys found that 80% of Americans recognized the old Food Guide Pyramid--a big success in the world of public-health campaigns. Yet only 16% followed its advice.

单选题______ no gravity, there would be no air around the earth, hence no life. A. If there had been B. If there was C. Had there been D. were there

单选题{{B}}Text 2{{/B}} Tens of thousands of 18-year-olds will graduate this year and be handed meaningless diplomas. These diplomas won't look any different from those awarded their luckier classmates. Their validity will be questioned only when their employers discover that these graduates are semiliterate(半文盲). Eventually a fortunate few will find their way into educational-repair shops—adult-literacy programs, such as the one where I teach basic grammar and writing. There, high-school graduates and high-school dropouts pursuing graduate-equivalency certificates will learn the skills they should have learned in school. They will also discover they have been cheated by our educational system. I will never forget a teacher who got the attention of one of my children by revealing the trump card of failure. Our youngest, a world-class charmer, did little to develop his intellectual talents but always got by. Until Mrs. Stifter. Our son was a high-school senior when he had her for English. "He sits in the back of the room talking to his friends," she told me. "Why don't you move him to the front row?" I urged, believing the embarrassment would get him to settle down. Mrs. Stifter said, "I don't move seniors. I flunk(使…不及格) them." Our son's academic life flashed before my eyes. No teacher had ever threatened him. By the time I got home I was feeling pretty good about this. It was a radical approach for these times, but, well, why not? "She's going to flunk you," I told my son. I did not discuss it any further. Suddenly English became a priority(头等要事) in his life. He finished out the semester with an A. I know one example doesn't make a case, but at night I see a parade of students who are angry for having been passed along until they could no longer even pretend to keep up. Of average intelligence or better, they eventually quit school, concluding they were too dumb to finish. "I should have been held back," is a comment I hear frequently. Even sadder are those students who are high-school graduates who say to me after a few weeks of class, "I don't know how I ever got a high-school diploma." Passing students who have not mastered the work cheats them and the employers who expect graduates to have basic skills. We excuse this dishonest behavior by saying kids can't learn if they come from terrible environments. No one seems to stop to think that most kids don't put school first on their list unless they perceive something is at risk. They'd rather be sailing. Many students I see at night have decided to make education a priority. They are motivated by the desire for a better job or the need to hang on to the one they've got. They have a healthy fear of failure. People of all ages can rise above their problems, but they need to have a reason to do so. Young people generally don't have the maturity to value education in the same way my adult students value it. But fear of failure can motivate both.

单选题Built ______ natural materials, the houses are believed to be warm, comfortable and friendly places to live.

单选题It was very kind of you to do the washing-up, but you ______ it. A. mustn't B. wouldn't have done C. mightn't have done D. didn't have to do

单选题He stepped into the dark cave, ______ high above his head. A. holding a burning stick B. held a burnt stick C. holding a burnt D. held a burning stick

单选题Saleswoman: ______ Customer: Yes. What size is that light blue shirt? I hope it fits me.

单选题The more the relative humidity(温度) reading (rises), (the worst) the heat (affects) (us).A. risesB. the worstC. affectsD. us

单选题After a 300 million yuan renovation project, Lidai Diwang Miao, or the Imperial Temple of Emperors of Successive Dynasties, was reopened to the public last weekend. Originally constructed about 470 years ago, during the reign of Emperor Jiajing of the Ming Dynasty, the temple was used by emperors of both the Ming and Qing to offer sacrifices to their ancestors. It underwent two periods of renovation in the Qing Dynasty, during the reigns of emperors Yongzheng and Qianlong. From 1929 until early 2000, it was part of Beijing No. 159 Middle School. The temple's Jingdechongsheng Hall contains stone tablets memorializing 188 Chinese emperors. The finzhuan bricks used to pave the floor, the same as those used in the Forbidden City, are finely textured and golden-yellow in color. According to Xi Wei, an official from the Xicheng District government present at the re-opening of the temple, jinzhuan bricks were made in Yuyao, Suzhou, specially for imperial use. The renovation was done strictly according to that carded out at the orders of Emperor Qianlong, and only those sections of the temple too damaged to repair have been replaced.

单选题The main boyhood (interesting) of (psychologist) Jean Piaget (was) the observation of animals (in their) natural habitat(栖息地).

单选题 Some psychologists maintain that mental acts such as thinking are not performed in the brain alone, but that one's muscles also participate. It may be said that we think with our muscles in somewhat the same way that we listen to music with our bodies. You surely are not surprised to be told that you usually listen to music not only with your ears but with your whole body. Few people can listen to music that is more or less familiar without moving their body or mom specifically, some part of their body. Often when one listens to a symphonic concert on the radio, he is tempted to direct the orchestra even though he knows there is a competent conductor on the job. Strange as this behavior may be, there is a very good reason for it. One cannot derive all possible enjoyment from music unless he participates, so to speak, in its performance. The listener "feels" himself into the music with more or less noticeable motions of his body. The muscles of the body actually participate in the mental process of thinking in the same way, but this participation is less obvious because it is less noticeable.

单选题Nick: Hi, Daisy, let me introduce you to Peter. Peter also works at IBM. Peter, this is Daisy, a family friend.Peter: ______

单选题{{B}}Part A{{/B}}Directions: Read the following four passages. Answer the questions below each passage by choosing A, B, C and D． {{B}}Text 1{{/B}} The longest bull run in a century of art-market history ended on a dramatic note with a sale of 56 works by Damien Hirst, Beautiful Inside My Head Forever, at Sotheby's in London on September 15th, 2008．All but two pieces sold, fetching more than ￡ 70m, a record for a sale by a single artist. It was a last victory. As the auctioneer called out bids, in New York one of the oldest banks on Wall Street, Lehman Brother, filed for bankruptcy. The world art market had already been losing momentum for a while after rising bewilderingly since 2003．At its peak in 2007 it was worth some $ 65 billion, reckons Clare McAndrew, founder of art Economics, a research firm-double the figure five year earlier. Since then it may have come down to $ 50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries. In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008．Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $ 200m in guarantees to clients who had placed works for sale with them. The current downturn in the art market is the worst since the Japanese stopped buying Impressionist at the end of 1989．This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: "I'm pretty confident we're at the bottom. " What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds--death, debt and divorce-still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return.

单选题Doctor: Have you lost weight recently, Mr. Bush?Bush: No, doctor. Actually,

单选题Stranger: Excuser me, do you have small change for a dollar?Passer-by: ______

单选题Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (31) an educational institution, and they are required to study for a (32) of fifteen hours a week on a daytime course. Prospective students have to show that they can afford their studies, and that they have sufficient (33) resources to support themselves (34) in this country. In order to work here the foreigner needs a work permit, (35) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (36) these permits, and there is little that can be done (37) it; it would be extremely unwise for a foreign visitor to work (38) a permit, since anyone doing so is liable to immediate deportation(驱逐出境). There are some people from the European countries, who are often given (39) residence permits of up to five years. Some other people, such as doctors, foreign journalists, authors and others can work without permits, and foreign students are normally allowed to (40) part-time jobs while they are studying here.

单选题John Philip Sousa, (who) (many) people consider the (greatest) composer of marches, wrote his music during the era (known) as the Gay 90s.

单选题Women are Uassumed/U to be weaker, slower and less skilled than men.

单选题 Why does cream go bad faster than butter? Some researchers think they find the answer, and it comes down to the structure of the food, not its chemical composition--a finding that could help rid some processed foods of chemical preservatives. Cream and butter contain pretty much the same substances, so why cream should sour much faster has been a mystery. Both are emulsions--tiny globules (小球) of one liquid evenly distributed throughout another. "The difference lies in what's in the globules and what's in the surrounding liquid", says Brocklehurst, who led the investigation. In cream, fatty globules drift about in a sea of water. In butter, globules of a watery solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the mixture. "This means that in cream, the bacteria are free to grow throughout the mixture", he says. When the situation is reversed, the bacteria are locked away in compartments (密封仓) buried deep in the sea of fat. Trapped in this way, individual colonies cannot spread and rapidly run out of nutrients. They also slowly poison themselves with their waste products. "In butter, you get a self-limiting system which stops the bacteria growing", says Brocklehurst. The researchers are already working with food companies keen to see if their products can be made resistant to bacterial attack through alterations to the food's structure. Brocklehurst believes it will be possible to make the emulsions used in salad cream, for instance, more like that in butter. The key will be to do this while keeping the salad cream liquid and not turning it into a solid lump,