单选题The dentist has decided to extract her had tooth.A. take outB. repairC. pullD. dig

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 {{B}}An Early Form of Jazz Music{{/B}} Music comes in many forms; most countries have a style of their own. At the turn of the last century, {{U}}(51) {{/U}}jazz was born, America had no prominent. {{U}}(52) {{/U}}of its own. No one knows exactly when it was invented or by whom. But it began to be{{U}} (53) {{/U}}in the early 1890s. Jazz is America's contribution to{{U}} (54) {{/U}}music. In contrast to classical music, which{{U}} (55) {{/U}}formal European traditions, jazz is spontaneous and free in form. It bubbles with energy, {{U}}(56) {{/U}}the moods, interests, and emotions of the people. In the 1920s jazz{{U}} (57) {{/U}}like America. And so it does today. The{{U}} (58) {{/U}}of the music are as interesting as the music itself. American Negroes, or blacks, as they are called today, were the jazz pioneers. They were brought to the Southern states{{U}} (59) {{/U}}slaves. They were sold to plantation owners and forced to work long hours. When a Negro died his friends and relatives{{U}} (60) {{/U}}a procession to carry the body to the cemetery. In New Orleans, a band often accompanied the{{U}} (61) {{/U}}. On the way to the cemetery the band played slow, solemn music suited to the occasion. {{U}}(62) {{/U}}on the way home the mood changed. Spirits lifted. Death had removed one of their number, but the living were glad to be{{U}} (63) {{/U}}. The band played{{U}} (64) {{/U}}music, improvising on both the harmony and the melody of the tunes{{U}} (65) {{/U}}at the funeral. This music made everyone want to dance. It was an early form of jazz.

单选题When did women start taking part in the Olympic Games?

单选题It frustrates me that I'm not able to put any of my ideas into practice.

单选题I can't put up uitl his behaviors any more.A. tolerateB. careC. misunderstandD. disappoint

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，并填在题前的括号内。 {{B}}Where Did All the Ships Go?{{/B}} The Bermuda Triangle is one{{U}} (1) {{/U}}the greatest mysteries of the sea. In this triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and airplanes{{U}} (2) {{/U}}to disappear more often than in{{U}} (3) {{/U}}parts of the ocean. And they do so{{U}} (4) {{/U}}leaving any sign of all accident or any dead bodies. It is{{U}} (5) {{/U}}that Christopher Columbus was the first person to record strange happenings in the area. His compass stopped working, a flame came down from the sky, and a wave 100 to 200 feet high carried his ship about a mile away. The most famous disappearance in the Bermuda Triangle was the US Naval Air Flight 19.{{U}}(6) {{/U}}December 5, 1945, five bomber planes carrying 14 men.{{U}} (7) {{/U}}on a training mission from the Florida coast. Later that day, all communications with Flight 19 were lost. They just disappeared without a trace. The next morning, 242 planes and 19 ships took part in the largest air-sea search in history. But they found nothing. Some people blame the disappearances{{U}} (8) {{/U}}supernatural forces. It is suggested the{{U}}(9) {{/U}}ships and planes were either transported to other times and places, kidnapped by aliens{{U}} (10) {{/U}}attacked by sea creatures. There are{{U}} (11) {{/U}}natural explanations, though. The US Navy says that the Bermuda triangle is one of two places on earth{{U}} (12) {{/U}}a magnetic compass points towards true north{{U}} (13) {{/U}}magnetic north.{{U}} (14) {{/U}}planes and ships can lose their way if they don't make adjustments. The area also has changing weather and is known{{U}} (15) {{/U}}its high waves. Storms can turn up suddenly and destroy a plane or ship. Fast currents could then sweep away any trace of an accident. Bermuda Triangle 百慕大三角区 Florida 4佛罗里达(美国的一个放) Pueto Rico波多黎各 Compass n.罗盘,指南针 supernatural adj. 超自然 kidnap v. 绑架 alien n.外星人 magnetic adj.有磁性的 trace n. 痕迹

单选题The American Family In the American family the husband and wife usually share important decision making. When the children are 1 enough, they take part as well. Foreigners are often surprised by the permissiveness (宽容) of American parents. The old rule that "children should be seen and not heard" is rarely 2 , and children are often allowed to do 3 they wish without strict control of their parents. The father seldom expects his children to listen to him 4 question, and children are encouraged to be 5 at an early age. Some people believe that American parents carry this freedom 6 far. Others think that a strong father image would not 7 the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to 8 their parental families by the time they have 9 their late teens or early twenties. Indeed, not to do so is often regarded as a 10 , a kind of weak dependence. This pattern of independence often results in serious 11 for the aging parents of a small family. The average American is expected to live 12 the age of 70. The job-retirement age is 13 65. The children have left home, married, and 14 their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. 15 the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.

单选题 A Success Story At 19, Ben Way is already a millionaire, and one of a growing number of teenagers who have {{U}} {{U}} 1 {{/U}} {{/U}}their fortune through the Internet. {{U}} {{U}} 2 {{/U}} {{/U}}makes Ben's story all the more remarkable is that he is dyslexic, and was {{U}} {{U}} 3 {{/U}} {{/U}}by teachers at his junior school that he would never be able to read or write {{U}} {{U}} 4 {{/U}} {{/U}}. "I wanted to prove them {{U}} {{U}} 5 {{/U}} {{/U}}", says Ben, creator and director of Waysearch, a net search engine which can be used to find goods in online shopping malls. When he was eight, his local authorities {{U}} {{U}} 6 {{/U}} {{/U}}him with a PC to help with school work. Although he was {{U}} {{U}} 7 {{/U}} {{/U}}to read the manuals, he had a natural ability with the computer, and {{U}} {{U}} 8 {{/U}} {{/U}}by his father, he soon began {{U}} {{U}} 9 {{/U}} {{/U}}people $10 an hour for his knowledge and skills. At the age of 15 he {{U}} {{U}} 10 {{/U}} {{/U}}up his own computer consultancy, Quad Computer, which he ran from his bedroom, and two years later he left school to {{U}} {{U}} 11 {{/U}} {{/U}}all his time to business. "By this time the company had grown and I needed to take on a {{U}} {{U}} 12 {{/U}} {{/U}}of employees to help me", says Ben. "That enabled me to start {{U}} {{U}} 13 {{/U}} {{/U}}business with bigger companies." It was his ability to consistently {{U}} {{U}} 14 {{/U}} {{/U}}difficult challenges that led him to win the Young Entrepreneur of the Year award in the same year that he formed Waysearch, and he has recently signed a deal {{U}} {{U}} 15 {{/U}} {{/U}}$25 million with a private investment company, which will finance his search engine.

单选题As a result of careless washing the jacket was reduced to a child's size. A. compressed B. shrank C. dropped D. decreased

单选题The board of the company has decided to widen its operation to include all aspects of the clothing business.

单选题t is not special in Britain to see ______________.

单选题Why does the author mention "Egypt's mighty pyramid builders"?

单选题 The New Technology Application On a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years. Rapidly proliferating "wi-fi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports. Soon they will be small, powerful and cheap enough to be implanted into everything. Sensors of every kind, including video cameras, should also become much smaller and cheaper. Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005. How rapidly such a new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services. Fortunes will be made and lost many times over. But whatever happens, the power of computing .and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades. That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost. For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile communication capable of constant monitoring. Whether this arrives in 20, 30 or 40 years does not really matter. The point is that the destination seems not merely possible, but probable, so it is not too soon to ask: What do we want this technology to do? The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades. The debate has already begun. This survey will outline some of main issues and speculate on the way they are likely to go.

单选题John is {{U}}collaborating{{/U}} with Mary in writing an article

单选题Sometimes it is advisable to book hotels in advance.

单选题We have a responsibility to ensure our nation's continued prosperity and the most {{U}}sensible{{/U}} way to do this is by investment in basic scientific research. A. effective B. efficient C. significant D. reasonable

单选题These are their {{U}}motives{{/U}} for doing it. A. reasons B. excuses C. answers D. plans

单选题Throughout most of their lives. human beings perpetually learn and increase their mental capacities.

单选题 阅读下面的短文，文中有15处空白，每处空白给出4个选项。请根据短文的内容，从4个选项中选择1个最佳答案。 {{B}}A system to stop ships sinking{{/B}} A new computer system has been designed to stop ships sinking. The greatest danger to a holed vessel is that flooding of its compartments will make the {{U}}(51) {{/U}} unstable enough to capsize. It is estimated that nearly half the ship {{U}}(52) {{/U}} during the Second World War capsized because of loss of {{U}}(53) {{/U}}. Pacer System of Burlington, Massachusetts has now refined a system devised by a reserve U.S. Navy officer, Stephen Drabouski. The computer is programmed with every possible eventuality of flood damage. Once the actual damage is keyed into the computer the operator is told by the computer {{U}}(54) {{/U}} the implications are—and what can be done to re-establish the vessel. Trials on the American aircraft carrier USS Midway have {{U}}(55) {{/U}} that the re action time to damage can be cut to a fiftieth. An incident was simulated in which the ship was {{U}}(56) {{/U}} by two Exocet missiles causing flooding to 30 {{U}}(57) {{/U}} receipt of the flood damage information in the damage control centre to a full printout of damage, effects, {{U}}(58) {{/U}} countermeasures and an assessment of the result of the countermeasures. In a re-run of the incident {{U}}(59) {{/U}} the computer program the damage control officer took four and a quarter hours to establish the effects, of the damage and another four hours {{U}}(60) {{/U}} a decision could be taken on countermeasures. Although the system can be used to provide {{U}}(61) {{/U}} control officers with advice, they do not, of course, have to {{U}}(62) {{/U}} the information. Quite often the " {{U}}(63) {{/U}} solution" will be unacceptable for operational reasons. When that happens the system can be asked for alternatives or the operator {{U}}(64) {{/U}} interrogate the computer to find out what would happen if the officer's {{U}}(65) {{/U}} solution was put into action.

单选题In judging our work you should take into consideration the fact that we have been very busy recently. A. thought B. account C. mind D. brain