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单选题He is an honest person. He is ______ to do such a dishonest thing. A. the least man B. not likely C. the last man D. the latest man
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单选题Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy, increased demand for raw materials, accelerated flow of materials through the economy and increased quantities of metals and other substances in use per person. The history of industrial development is full of examples. In 1870, homes and mules were the prime source of power on U.S. farms. One horse or many decades. At that time, had a national commission been asked to forecast the horse and mule population for 1970, its answer probably would have depended on whether its consultants were of an economic mm of mind. Had they been "economists", they would have recognized that the power of steam had already been harnessed to industry and to land and ocean transport. They would have recognized further that would be only a matter of time before steam would be the prime source of power on the farm. It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.
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单选题{{B}}Directions:{{/B}} Read the following passage. For each numbered blank there are four choices marked A, B, C and D. Choose the best one and mark your answers on ANSWER SHEET 1. An important factor of leadership is attraction. This does not mean attractiveness in the ordinary sense, for that is a born quality {{U}}(21) {{/U}} our control. The leader has, nevertheless, to be a magnet; a central figure towards whom people are {{U}}(22) {{/U}} Magnetism in that sense depends, first of all, {{U}}(23) {{/U}} being seen. There is a type of authority which can be {{U}}(24) {{/U}} from behind closed doors, but that is not leadership. {{U}}(25) {{/U}} there is movement and action, the true leader is in the forefront and may seem, indeed, to be everywhere at once. He has to become a legend; the {{U}}(26) {{/U}} for anecdotes, whether true or {{U}}(27) {{/U}}, character. One of the simplest devices is to be absent {{U}}(28) {{/U}} the occasion when the leader might be {{U}}(29) {{/U}} to be there, enough in itself to start a rumor about the vital business {{U}}(30) {{/U}} has detained him. To {{U}}(31) {{/U}} up for this, he can appeal when least expected, giving rise to another story about the interest he can display {{U}}(32) {{/U}} things which other folks might {{U}}(33) {{/U}} as trivial. With this gift for {{U}}(34) {{/U}} curiosity the leader always combines a reluctance to talk about himself. His interest is {{U}}(35) {{/U}} in other people; he questions them and encourages them to talk and then remembers all {{U}}(36) {{/U}} is relevant. He never leaves a party {{U}}(37) {{/U}} he has mentally formed a minimum dossier (档案) on {{U}}(38) {{/U}} present, ensuring that he knows {{U}}(39) {{/U}} to say when he meets them again. He is not artificially extrovert but he would usually rather listen {{U}}(40) {{/U}} talk. Others realize gradually that his importance needs no proof.
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单选题Pupils seem to regard the new and the middle-standing teachers as being more______ than the veteran teachers.
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单选题James: Hey, Eileen, this handbag is a real bargain. It's only $ 24.95. Eileen: Only $ 24. 95? ______
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单选题Marie : Your little boy has done a good job at school. Eva:______ A. Yes, you are very kind. B. No, you're too polite. C. Thanks, but you're exaggerating. D. Yes, I' m proud of him.
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单选题He often attends public lectures at the university of California chiefly ______ his English. A. to improve B. as to improve C. except D. except for
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单选题The quality of college education should be Umeasured/U not only by the graduate's competence but also by his commitment(信奉).
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单选题Whatever the causes, the English by the end of the year 2050 will have been more widely spoken and written than any other language ______. A. ever was B. had ever been C. would ever be D. has ever been
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单选题I doubt that any historically valid treatment of that presidential administration can emerge for at least another decade, if then. I confess that when I came out of the White House I signed up to do an "insider volume", but sober, professional second thoughts have led me to put that project on ice until at least 1980. The problem is that I simultaneously know too much, and not enough. I know what I thought was happening. But I cannot fully document what happened. And I have seen enough highly classified documents to know that most of what the observers thought was happening was at best half right, at worst dead wrong. This has steered me in a different direction as far as writing is concerned. I am now preparing what is frankly and unashamedly an ex parte memoir, "My Experiences in Washington." It is based on what I believed to be true, on the picture as I conceptualized it, of the presidential administration under which I worked.
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单选题 Industrial safety does not just happen. Companies{{U}} (31) {{/U}}low accident rates plan their safety programs, work hard to organize them, and continue working to keep them{{U}} (32) {{/U}}and active. When the work is well done, a{{U}} (33) {{/U}}of accident-free operations is established{{U}} (34) {{/U}}time lost due to injuries is kept at a minimum. Successful safety programs may{{U}} (35) {{/U}}greatly in the emphasis placed on certain aspects of the program. Some place great emphasis on mechanical guarding. Others stress safe work practices by{{U}} (36) {{/U}}rules or regulations.{{U}} (37) {{/U}}others depend on an emotional appeal to the worker. But, there are certain basic ideas that must be used in every program if maximum results are to be obtained. There can be no question about the value of a safety program. From a financial stand-point alone, safety{{U}} (38) {{/U}}. The fewer the injury{{U}} (39) {{/U}}, the better the workman's insurance rate. This may mean the difference between operating at{{U}} (40) {{/U}}or at a loss.
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单选题______ you go on the earth, there is always gravity to keep your room from falling off. A. When B. Whenever C. Since D. Because
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单选题This instrument, _____and operating next year, will consist of three telescopes.
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单选题 Now medical researchers are discovering a truism: "alcohol and tobacco do not mix." These two substances, both dangerous to health, act synergistically, each making the other more powerful and thereby causing worse damage than either would do alone. Because of this interaction, the person who both smokes and drinks heavily may be at a greater risk of becoming ill than one who drinks like a fish, but never smokes or who smokes like a chimney, but never drinks. To get an idea of how this synergism may work, consider what happens when a smoker lights up a cigarette. With each puff he inhales at least 4,000 different chemicals. These include toxic hydrogen-cyanide, carbon monoxide and nitrogen-dioxide gases, and four dozen compounds such as benzo pyrene and radioactive polonium 210. All are known as carcinogens. Most chemical vapors in tobacco smoke get deposited in the mouth, nose, throat and lungs in a coating called tar. It is in this tar that most of the cancer--inducing potential of tobacco smoke lies. Then in a scenario typical of chronic heavy drinkers--most of whom also smoke--our smoker feels thirsty and washes down that smoke coating in his mouth and throat with whisky. The alcohol in his drink is not in itself a carcinogen, but it may act as a solvent, dissolving the tar-taped tobacco poisons, and easing the transport of carcinogens across membranes. Our smoker continues to drink. Soon he lights another cigarette and inhales deeply. Behind his embattled lungs, meanwhile, his liver has gone on full alert to save his life. The three-pound chemical factory, which cleans most toxins from the bloodstream, reacts to alcohol as a foreign substance and metabolizes 95 percent of it into other chemicals. But in turning its energy to clearing just one-half ounce of pure alcohol--the amount in a standard drink--per hour from our drinking smoker's blood, the liver's other metabolic functions suffer a sharp decrease. Poisons from tobacco smoke that otherwise would be removed from his blood within minutes are now allowed to flood his body for hours or days, depending on how much alcohol the liver must dispose of. The person who smokes one or two packs of cigarettes a day loses on average six to eight percent of his blood's oxygen carrying capacity. If our heavy smoker's use of alcohol has led to alcoholism, he is probably malnourished. This malnourishment compounds problems he is having with insufficient oxygen. His brain cells are dying from it. The synergistic effect of alcohol and tobacco may deliver a powerful blow to the cardiovascular system as well as the upper respiratory tract. For those prone to hypertension who drink more than two ounces of alcohol a day, high blood pressure is common and with it the increased risk of stroke and heart attack. For hypertensives who combine smoking and drinking, the risks are even greater.
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单选题{{B}}Directions:{{/B}} In this part there are 4 passages followed by questions or unfinished statements, each with four suggested answers. Choose the one you think is the best answer. Mark your choice on the Answer Sheet by drawing with a pencil a short bar across the corresponding letter in the {{B}}Passage One{{/B}} Why are mobiles so popular? Because people love to talk to each other. And it is easier with a mobile phone. In countries like Russia and China, people use tile mobile phone in places where there is no ordinary telephone. Business people, use mobiles when they're traveling. In some countries, like Japan, many people use their mobile phones to send email message and access the Internet. They use a new kind of mobile phone called "i mode". You can even use a mobile phone to listen to music. Mobile phones are very fashionable with teenagers. Parents buy mobile phones for their children. They can call borne if they are in trouble and need help. So they feel safer. But teenagers mostly use them to keep in touch with their friends or play simple computer games. It's cool to be the owner of a small expensive mo- bile. Research shows that teenage owners of mobile phones smoke less. Parents and schools are happy that teenagers are safer and smoke less. But many people dislike them. They hate it when the businessman opposite them on the train has a loud conversation on his phone. Or when the mobile phone rings in a cafe or restaurant. But there is a much more serious problem. It's possible that the mobile phone can heat up the brain because we hold the phone so close to our heaD. Scientists fear that mobiles can perhaps be bad for your memory and even give you cancer.
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单选题According to the passage the old would very much like to ______.
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单选题Genetic engineering holds great potential payoffs for farmers and consumers by making crops resistant to pests, diseases, and even chemicals used to kill surrounding weeds; but new research raises concerns that altering crops to withstand such threats may pose new risks--from none other than the weeds themselves. This is due to the weeds' ability to acquire genes from the neighboring agricultural crops. Researchers found that when a weed cross-breeds with a farm-cultivated relative and thus acquires new genetic traits--possibly including artificial genes engineered to make the crop hardier--the hybrid weed can pass along those traits to future generations. "The result may be very hardy, hard-to-kill weeds," said Allison Snow, a plant ecologist at Ohio State University in Columbus who conducted the experiments over the past six years along with two colleagues. They presented their results last week at the annual meeting of the Ecological Society of America in Madison, Wisconsin. The findings suggest that genetic engineering done with the aim of improving crops--growing the new genetic traits such as resistance to herbicides or pests-- could ultimately have unintended and harmful consequences for the crops if weeds acquire the same trait and use it to out-compete the crops. "Gene movement from crops to their wild relatives is an ongoing process that can be ultimately harmful to crops," said Snow. The results of the experiments challenge a common belief that hybrids gradually die out over several generations, Snow explained. "There has been an assumption that crop genes wouldn't persist in crop-weed hybrids" because hybrids are thought to be less successful at reproducing, she said. However, Snow's research contradicted this assumption: Hybrid wild radishes survived in all six generations that were grown since the study began. Although the genetic traits the scientists monitored were natural and not genetically engineered, the findings nonetheless suggest that artificial improvements introduced into crops through genetic engineering could spread to weeds and become permanent traits of the weed population. So strengthened, the weeds may pose a serious risk to the long-term health of agricultural crops. The danger exists in a number of crop plants--including rice, sunflower, sorghum, squash, and carrots--that are closely related to weeds with which they compete. Snow is concerned that the transfer of genes from crops to related weeds could rapidly render many herbicides (chemicals which kill weeds) ineffectual. That situation, she said, would be much like bacterial diseases acquiring resistance to antibiotics. Because plant hybrids arise in a single generation, however, it could happen much more quickly; "Modern agriculture is heavily dependent on herbicides," she said, "so people will notice when those don't work anymore./
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单选题Harry: I didn"t know you play billiards. Are you having fun? John: I"m having a great time. ______ What are you doing?
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单选题Speaker A:I saw your boss was angry with you, what happened? Speaker B:______. He was just in a bad modd.
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单选题It is said that John's two daughters or his wife ______ to the city where he had an accident.
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