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单选题Mary' s departure ______with Tom' s return.
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单选题Waiter: ______? Customer: Yes, I"ll have a cheeseburger, medium rare, with French fries.
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单选题 Chicago Public Schools are going to great lengths to hire teachers -- now the school district recruits teachers from other countries to help solve a shortage of teachers. It all started in i999, when Youses Hannon, a math and physics teacher from Palestine (巴勒斯坦), visited Chicago. He read about the teacher shortage at Chicago Public Schools and asked the school board if they'd hire him. The board was interested and decided to create a special program for foreign-born teachers like Hannon, and he was the first teacher hired. The program is called the Global Educator Outreach or GEO, and it's a partnership between Chicago Public Schools and the U. S. Government. Because the teacher shortage in Chicago is so extreme, the Government allows the school district to temporarily hire foreign teaching candidates using H1-B visas. The Government grants these visas only to skilled foreign-born citizens so they can work in highly specialized jobs that can't be filled with available U. S. workforce. Through the GEO, the school district has hired dozens of teachers from 22 different countries. Applicants must pass an English language test and specialize in math, science, world language or bilingual (双语的) education. Hannon and the first GEO teachers started in the classroom at the beginning of the 2000-200i school year. What do the GEO teachers think of the American classroom? Hannon, who was hired to teach math at Gage Park High School, says classrooms in Chicago are very different from those in Palestine. For one thing, he says, the fixed schedule that forces students to attend the same classes at the same time each day becomes too dull. In Palestine, the class schedule changes each week. He says in Palestine, the culture forces students to work hard because if they don't they'll be kicked out and put in vocational schools, which limits their career options. There is not nearly as much pressure for American students to do well. He says he has to do double the amount of work just to get his students interested.
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单选题{{B}}Directions:{{/B}} Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. In recent years a new farming revolution has begun, one that involves the{{U}} (1) {{/U}}of life at a fundamental level-the gene. The study of genetics has{{U}} (2) {{/U}}a new industry called biotechnology. As the name suggests, it{{U}} (3) {{/U}}biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to{{U}} (4) {{/U}}seeds that give a high yield, that{{U}} (5) {{/U}}disease, drought and frost, and that reduce the need for{{U}} (6) {{/U}}chemicals. If such goals could be achieved, it would be most{{U}} (7) {{/U}}. But some have raised concerns about genetically engineered crops. In nature, genetic diversity is created within certain{{U}} (8) {{/U}}. A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering{{U}} (9) {{/U}}usually involves taking genes from one species and inserting them into another{{U}} (10) {{/U}}to transfer a desired characteristic. This could mean, for example, selecting a gene which leads to the production of a chemical with anti-freeze{{U}} (11) {{/U}}from an arctic fish, and inserting it into a potato or strawberry to make it frost-resistant.{{U}} (12) {{/U}}, then, biotechnology allows humans to{{U}} (13) {{/U}}the genetic walls that separate species.Like the green revolution,{{U}} (14) {{/U}}some call the gene revolution contributes to the problem of genetic uniformity-some say even more{{U}} (15) {{/U}}geneticists can employ techniques such as cloning and{{U}} (16) {{/U}}culture, processes that produce perfectly{{U}} (17) {{/U}}copies. Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new{{U}} (18) {{/U}}, such as the effect they may have on us and environment. ".We are flying blindly into a new{{U}} (19) {{/U}}of agricultural biotechnology with high hopes, few constraints and little idea of the potential{{U}} (20) {{/U}}," said science writer Jemery Rifkin.
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单选题The most important ______ of his speech was that we Should all work whole-heartedly for the people.A. elementB. spotC. senseD. point
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单选题I had a new tap ______ the day before yesterday.
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单选题The Canadian unions tend to strive for wage parity, with their counterparts in the United States.
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单选题What would happen to the U. S. economy if all its commercial banks suddenly closed their doors? Throughout most of American history, the answer would have been a disaster of epic proportions, akin to the Depression wrought by the chain-reaction bank failures in the early 1930s. But in 1993 the startling answer is that a shutdown by banks might be far from cataclysmic. Consider this: though the economic recovery is now 27 months old, not a single net new dollar has been lent to business by banks in all that time. Last week the Federal Reserve reported that the amount of loans the nation's largest banks have made to businesses fell an additional $2. 4 billion in the week ending June 9, to $274.8 billion. Fearful that the scarcity of bank credit might sabotage the fragile economy, the White House and federal agencies are working feverishly to encourage banks to open their lending windows. In the past two weeks, government regulators have introduced steps to make it easier for banks to lend. Is the government's concern fully justified? Who really needs banks these days? Hardly anyone, it turns out. While banks once dominated business lending, today nearly 80% of all such loans come from nonbank lenders like life insurers, brokerage firms and finance companies. Banks used to be the only source of money in town. Now businesses and individuals can write checks on their insurance companies, get a loan from a pension fund, and deposit paychecks in a money-market account with a brokerage firm. "It is possible for banks to die and still have a vibrant economy," says Edward Furash, a Washington bank consultant. The irony is that the accelerating slide into irrelevance comes just as the banks racked up record profits of $43 billion over the past 15 months, creating the illusion that the industry is staging a comeback. But that income was not the result of smart lending decisions. Instead of earning money by financing America's recovery, the banks mainly invested their funds--on which they were paying a bargain-basement 2% or so--in risk-free Treasury bonds that yielded 7%. That left bank officers with little to do except put their feet on their desks and watch the interest roll in. Those profits may have come at a price. Not only did bankers lose many loyal customers by withholding credit, they also inadvertently opened the door to a herd of nonbank competitors, who stampeded into the lending market. "The banking industry didn't see this threat," says Furash. "They are being fat, dumb and happy. They didn't realize that banking is essential to a modern economy, but banks are not./
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单选题The price increases were passed on by the firm to none but the ______.
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单选题{{B}}Passage Two{{/B}} Perhaps there is only the moon to compare with it. Of all the achievements of American engineering, only the landing on the moon and the planting there of a wrinkled flag can rival the construction of Panama Canal as an epoch-making accomplishment. The Suez Canal, the trans-Siberian Railroad and the Taj Mahal all pale beside it. The canal's construction is more closely akin to the pyramids of Egypt in its scope and difficulty of execution, but in the modern era, there is only the moon. Like the landing on the moon, the construction of a canal across the narrow Isthmus of Panama was a dream long before it became reality. As early as 1534, Charles I of Spain proposed a canal at Panama, but it would take nearly 400 years for builders to catch up with his imagination. When the canal finally was proposed required all the creativity the twentieth century could muster. It was the largest public work ever attempted. Its engineers had to control a wild river, cut the continental divide, construct the largest dam and man made lake known to that date and swing the largest locks ever constructed from the biggest cement structures then poured. Along the way, two of the world's most devastating diseases had to be wiped out in one of their greatest strongholds. And all of this was to be done without the airplane or the automobile: Kitty Hawk rose into the head-lines in 1903——the same year the U. S. signed a treaty with Panama——and there was no read across the isthmus until the World War Ⅱ. If Panama has had an unusual role in bygone dreams, it most certainly has a startling relationship to the hard facts of geography. The country is farther east than most people imagine——the canal and about half of Panama actually lie east of Miami. Because of the country's shallow "S" shape and east-west orientation, it has places where the sun rises in the Pacific and sets in the Atlantic. More significantly, Panama is squeezed into the narrowest portion of Central. At the canal, just 43 miles of land separate Atlantic and Pacific shores. Perhaps even more important, Panama offers the lowest point in the North American continental divide——originally 312 feet above sea level at the canal's Culebra Cut. By comparison, the lowest pass in the United States is nearly 5,000 feet.
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单选题{{B}}Part B{{/B}}{{B}}Directions: {{/B}}{{I}}In the following articles, some sentence have been removed. For Questions 41 -45, choose the most suitable one from the list A-G to fit into each of the numbered blank. There are two extra choices, which do not fit in any of the gaps. Mark your answers on ANSWTR SHEET 1.{{/I}} A significant portion of industry and transportation burns fossil fuels, such as gasoline. When these fuels burn, chemicals and particulate matter are released into the atmosphere. Although a vast number of substances contribute to air pollution, the most common air pollutants contain carbon, sulfur, and nitrogen. 41 __________. Acid rain forms when sulfur dioxide and nitrous oxide transform into sulfuric acid and nitric acid in the atmosphere and come back to Earth in precipitation. Acid rain has made numerous lakes so acidic that they no longer support fish populations. 42 __________. Estimates suggest that nearly 1.5 billion people worldwide lack safe drinking water and that at least 5 million deaths per year can be attributed to waterborne diseases. Water pollution may come from point sources or nonpoint sources. Point sources discharge pollutants from specific locations, such as factories, sewage treatment plants, and oil tankers. The technology exists to monitor and regulate point sources of pollution, although in some areas this occurs only sporadically. Pollution from nonpoint sources occurs when rainfall or snowmelt moves over and through the ground. 43 __________. With almost 80 percent of the planet covered by oceans, people have long acted as if those bodies of water could serve as a limitless dumping ground for wastes. However, raw sewage, garbage, and oil spills have begun to overwhelm the diluting capabilities of tile oceans, and most coastal waters are now polluted, threatening marine wildlife. 44 __________. Water that collects beneath the ground is called groundwater. Worldwide, groundwater is 40 times more abundant than fresh water in streams and lakes. In the United States, approximately half the drinking water comes from groundwater. Although groundwater is a renewable resource, reserves replenish relatively slowly. Presently, groundwater in the United States is withdrawn approximately 4 times faster than it is naturally replaced. 45 __________. A. Beaches around the world close regularly, often because the surrounding waters contain high levels of bacteria from sewage disposal. B. These chemicals interact with one another and with ultraviolet radiation in sunlight in dangerous ways. Smog, usually found in urban areas with large numbers of automobiles, forms when nitrogen oxides react with hydrocarbons in the air to produce aldehydes and ketones. Smog can cause serious health problems. C. Acid rain is also responsible for the decline of many forest ecosystems worldwide, including Germany's Black Forest and forests throughout the eastern United States. D. In addition to groundwater depletion, scientists worry about groundwater contamination, which arises from leaking underground storage tanks, poorly designed industrial waste ponds, and seepage from the deep-well injection of hazardous wastes into underground geologic formations. E. The Ogallala Aquifer, a huge underground reservoir stretching under eight states of the Great Plains, is drawn down at rates exceeding 100 times the replacement rate. Agricultural practices depending on this source of water need to change within a generation in order to save this groundwater source. F. As the runoff moves, it picks up and carries away pollutants, such as pesticides and fertilizers, depositing the pollutants into lakes, rivers, wetlands, coastal waters, and even underground sources of drinking water. Pollution arising from nonpoint sources accounts for a majority of the contaminants in streams and lakes. G. By some estimates, on average, 25 percent of usable groundwater is contaminated, and in some areas as much as 75 percent is contaminated.
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单选题The guy in the next cubicle is yammering away on the phone. Across the room, someone begins cursing loudly at a jammed copy machine. The headphones on the other end of your desk suddenly look very appealing. Would anyone mind if you tapped into your iTunes playlist for a while? Some workers like to listen to music when they find themselves losing focus. They may also plug in their earbuds to escape an environment that"s too noisy—or too quiet—or to make a repetitive job feel more lively. In biological terms, melodious sounds help encourage the release of dopamine (a chemical found in brain) in the reward area of the brain, as would eating a delicacy, looking at something appealing or smelling a pleasant aroma, said Dr. Amit Seed, a physician of integrative medicine with the Mayo Clinic. People"s minds tend to wander, "and we know that a wandering mind is unhappy," Dr. Seed said. "Most of that time, we are focusing on the imperfections of life." Music can bring us back to the present moment. "It breaks you out of just thinking one way," said Teresa Lesiuk, an assistant professor in the music therapy program at the University of Miami. Dr. Lesiuk"s research focuses on how music affects workplace performance. In one study involving information technology specialists, she found that those who listened to music completed their tasks more quickly and came up with better ideas than those who didn"t, because the music improved their mood. Dr. Lesiuk found that personal choice in music was very important. She allowed participants in her study to select whatever music they liked and to listen as long as they wanted. Those who were moderately skilled at their jobs benefited the most, while experts saw little or no effect. And some novices regarded the music as distracting. Dr. Lesiuk has also found that the older people are, the less time they spend listening to music at work. Few companies have policies about music listening, said Paul Flaharty, a regional vice president at a staffing agency. But it is still a good idea to check with your manager, even if you see others wearing headphones in the office. For those who choose to listen to music, it"s best to set limits, because wearing headphones for an entire shift can be perceived as rude by those nearby.
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单选题 The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1950's. In the 1920's but especially {{U}}(21) {{/U}} the Depression of the 1930's, the United States experienced a {{U}}(22) {{/U}} birth rate. Then with the prosperity {{U}}(23) {{/U}}.on by the Second World War and the economic boom that followed it, young people married and {{U}}(24) {{/U}} households earlier and began to {{U}}(25) {{/U}} larger families than had their {{U}}(26) {{/U}} during the Depression. Birth rates rose to 102 per thousand in 1946, 106. 2 in 1950, and 118 in 1955 {{U}}(27) {{/U}} economics was probably the most important {{U}}(28) {{/U}}. it is not the only explanation for the baby boom. The increased value placed {{U}}(29) {{/U}} the idea of the family also helps to {{U}}(30) {{/U}} this rise in birth rates. The baby boomers began streaming {{U}}(31) {{/U}} the first grade by the mid-1940's and became a {{U}}(32) {{/U}} by 1950. The public school system suddenly found itself {{U}}(33) {{/U}}. The wartime economy-meant that few new schools were built between 1940 and 1945. {{U}}(34) {{/U}} large numbers of teachers left their profession during that period for better-paying jobs elsewhere. {{U}}(35) {{/U}}, in the 1950's and 1960's, the baby boom hit an antiquated and inadequate school system. Consequently, the custodial rhetoric of the 1930's no longer made {{U}}(36) {{/U}}: keeping youths ages sixteen and older out of the labor market by keeping them in school could no longer be a high {{U}}(37) {{/U}} for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators {{U}}(38) {{/U}} turned toward the lower grades and back to basic academic skills and {{U}}(39) {{/U}}. The system no longer had much {{U}}(40) {{/U}} in offering nontraditional, new, and extra services to older youths.
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单选题By the end of next month, this building______. A.will be finished B.will have finished C.will have been finished D.have been finished
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单选题Nylon is a kind of______material widely used in our daily lives.
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单选题The airport is ______ from my hometown.A. two hour's rideB. two hours' rideC. two hour rideD. two hours ride
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单选题 Some time between digesting Christmas dinner and putting your head back down to work, spare a thought or two for the cranberry. It is, of course, a{{U}} (1) {{/U}}of Christmas: merry bright red, bittersweetly delicious with turkey and the very devil to get out of the tablecloth{{U}} (2) {{/U}}spilled. But the cranberry is also a symbol of the modern food industry-and in the tale of its{{U}} (3) {{/U}}from colonial curiosity to business-school case study{{U}} (4) {{/U}}a deeper understanding of the opportunities and{{U}} (5) {{/U}}of modern eating. The fastest growing part of today's cranberry market is for cranberries that do not taste like cranberries. Ocean Spray's "flavoured fruit pieces" (FFPS, to the trade) taste like orange, cherry, raspberry or any {{U}}(6) {{/U}}of other fruits. They are in fact cranberries. Why make a cranberry taste like an orange? Mostly because it is a{{U}} (7) {{/U}}little fruit: FFPS have a shelf-life of two years. Better{{U}} (8) {{/U}}, they keep a chewy texture{{U}} (9) {{/U}}baked, unlike the fruits whose flavours they mimic, which turn to{{U}} (10) {{/U}}. The dynamic that has brought the cranberry to this point is{{U}} (11) {{/U}}to the dynamic behind most mass-produced goods. Growing{{U}} (12) {{/U}}provided the{{U}} (13) {{/U}}to create cheaper and more reliable supply. Cheaper and more reliable supply,{{U}} (14) {{/U}}, created incentives to find new markets, which increased demand. Thus was the{{U}} (15) {{/U}}kept churning. The cranberry is one of only three fruits native{{U}} (16) {{/U}}North America, growing wild from Maine to North Carolina. (The others are the Concord grape and the blueberry). The American Indians had several names for cranberries, many{{U}} (17) {{/U}}the words for "bitter" or, more{{U}} (18) {{/U}}, "noisy". They ate the berries mostly{{U}} (19) {{/U}}pemmican, but also used them for dye and medicine. And they introduced them to the white settlers--at the first Thanksgiving dinner in 1621, it is said. The settlers promptly renamed this delicacy the "crane berry",{{U}} (20) {{/U}}the pointy pink blossoms of tile cranberry look a bit like the head of the Sandhill crane.
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单选题
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单选题______ was because I wanted to buy a dictionary that I went downtown yesterday. A. This B. Such C. That D. It
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单选题What makes teenagers moody and impulsive? The answer used to be raging hormones plus a dearth of(短缺) life experiences. But three years ago this simple equation was blown apart by evidence from brain scans of strange goings-on behind the teenage forehead. Till then, scientists had thought the brain's internal structure was fixed by the end of childhood. The new scans showed the brain's frontal cortex(皮层) thickening just before puberty(青春期), then slowly shrinking back to normal during the teenage years. Suddenly, the erratic huffiness(发怒) seemed to make sense: the teenage brain was a work in progress, a house in the process of being rewired. Now comes more evidence of neural turmoil. According to psychologists in California, the speed with which youngsters can read the emotional expressions on people's faces dips suddenly at around the age of 11 or 12 and takes years to get back on track. The latest study, like the brain scan research before it, is a welcome and necessary part of building up a picture of a typical teenage brain so that scientists can get a better handle on what might be happening in the mental illnesses that appear to be afflicting children and adolescents in ever greater numbers. But there are dangers. Scientists still have no idea how to interpret the subtle changes seen in adolescent brain scans. Yet in the wrong hands, these findings could be used to justify hothousing, impulse control training and other dubious attempts to get the most out of malleable teenage brain cells. The science could also spark a new wave of moralising based on a perceived need to protect teenagers' evolving brain connections from evil or toxic influences. Incredibly, some scientists have already suggested in the press that the brain scan evidence somehow proves that it is biologically bad for teenagers to play video games or lie on the couch watching MTV. A hundred years, ago one well-known "expert" urged teenage boys to drink six to eight glasses of hot water a day to flush impure thoughts from their bodies. Have we really learned so little?
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