单选题Rumors began to {{U}}circulate{{/U}} about his financial problems. A. send B. spread C. hear D. confirm

单选题Hearing problems may be alleviated by changes in diet and exercise habits. A．removed B．cured C．worsened D．relieved

单选题Amanda Symcheck was having a party in the basement when the storm began.

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}} Earth's Inner Core{{/B}} Scientists have long struggled to understand what lies at the planet's center. Direct observation of its center is impossible, so researchers must {{U}}(51) {{/U}} to other evidence. In 1889, a German scientist detected a severe earthquake in Japan. Geophysicists concluded that shock waves {{U}}(52) {{/U}} jolts (晃动) from one side of Earth through the center to the other side. Then in 1936, Danish geophysicist lnge Lehmann studied the waves' {{U}}(53) {{/U}} to determine that within Earth's core of molten (熔化了的) iron lies a solid inner core - but {{U}}(54) {{/U}} that core was made of eluded (难倒) her. Other geophysicists quickly determined that Lehmann's inner core was composed mostly {{U}}(55) {{/U}} iron. Since then, Lehmann's discovery has {{U}}(56) {{/U}} conventional Earth science. But now scientists are challenging traditional theory with new and radical {{U}}(57) {{/U}}. For example, Earth's center could actually contain an "inner core within the inner core," claim Ishii and colleague Adam Dziewonski. Analyzing hundreds of thousands of earthquake wave {{U}}(58) {{/U}}, they maintain that the inner core has at its heart a tiny, even more solid sphere (球体). This sphere "may be the oldest fossil {{U}}(59) {{/U}} from the formation of Earth," says Dziewonski. Dziewonski and Ishii speculate that shortly {{U}}(60) {{/U}} Earth formed around 4.8 billion years ago, a giant asteroid (小行星) smashed into the young planet and nearly melted it. But Earth's center didn't quite melt; it {{U}}(61) {{/U}} mass as the planet cooled. The core within a core may be the kernel (核心) that endured. "its presence could change our basic ideas about the {{U}}(62) {{/U}} of the planet," Dziewonski says. Dziewonski's idea is tame (温和的) compared to the {{U}}(63) {{/U}} theories of independent geophysicist J. Marvin Herndon. Earth's inner core is made not of iron, he claims, but a {{U}}(64) {{/U}} of nickel and silicon. Herndon has a truly revolutionary notion: Within the nickel silicide (硅化物) inner core is also an "inner" inner core - an 8 km-wide ball of the element uranium. Uranium is radioactive. Herndon thinks the uranium releases heat energy as its atoms {{U}}(65) {{/U}} fission-split and crash into one another in a chain reaction. In other words, we may live on top of a gigantic, "natural" nuclear power plant.

单选题Relief workers were shocked by what they saw. A. moved B. touched C. surprised D. worried

单选题 阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 {{B}}Help Your Child Become a Reader{{/B}} Encouraging early reading skills can build a path to a lifelong (终身的) love of reading and can help your child get a head start in school. While reading to your child is still the most important thing you can do to build reading skills, there are many techniques that can help. Make reading fun. Play games with your child as you read. Many traditional children’s games can be adapted to encourage reading skills. While reading or during play, tell your child, “I spy with my little eye, something that begins with the letter b.” Help the child find something on the page or in the room that begins with that letter. For example. “I see a barn.” This can also be used to teach beginning letter sounds. “I spy with my little eye, something that begins with the sound‘s’.” Help the child find a word that begins with the “s” sound. In this variation on the popular game, instruct the child that, “Simon says, ‘point to something that starts with the letter n.’” The child can then find an object in the room or a body part, such as the nose, that starts with the letter presented. This can also be used to teach beginning sounds. Make a game out of rhyming (押韵) words by making up silly words to rhyme with the child’s name of favorite toys. This sets the stage for rhyming real words by showing the child the similarities of sounds. As the child masters making up the words, begin rhyming real words to one another. Tips to raise a successful reader: Put books in places where the child plays. If books are easily accessible, children are more likely to pick them up. Let children “read to you” by looking at pictures. Making up stories to go along with illustrations helps children discover how words relate to pictures. Take books along on trips or even short visits to the doctor’s office or grocery store. Have children help you shop. Reading grocery lists and looking for specific items helps build sight vocabulary.

单选题I recognized him right away even though Richard disguised well. A. at last B. on time C. gradually D. at once

单选题They Say Ireland's the Best Ireland is the best place in the world to live in for 2005, according to a life quality ranking that appeared in Britain's Economist magazine last week. The ambitious attempt to compare happiness levels around the world is based on the principle that wealth is not the only measure of human satisfaction and well-being. The index of 111 countries uses data on incomes, health, unemployment, climate, political stability, job security, gender equality as well as what the magazine calls "freedom, family and community life". Despite the bad weather, troubled health service, traffic congestion (拥挤) , gender inequality and the high cost of living. Ireland scored an impressive 8.33 points out of 10. That put it well ahead of second-place Switzerland, which managed 8.07. Zimbabwe, troubled by political insecurity and hunger, is rated the gloomiest (最差的), picking up only 3.89 points. "Although rising incomes and increased individual choices are highly valued." the report said, "some of the factors associated with modernization such as the breakdown (崩溃) in traditional institutions and family values in part take away from a positive impact." "Ireland wins because it successfully combines the most desirable elements of the new with the preservation of certain warm elements of the old, such as stable family and community life". The magazine admitted measuring quality of life is not a straightforward thing to do, and that its findings would have their critics. No. 2 on the list is Switzerland. The other nations in the top 10 are Norway, Luxembourg, Sweden, Australia, Iceland, Italy, Denmark and Spain. The UK is positioned at No. 29, a much lower position chiefly because of the social and family breakdown recorded in official statistics. The US, which has the second highest per capita GDP (人均国内生产总值) after Luxembourg, took the 13th place in the survey. China was in the lower half of the league at 60th.

单选题The Threat to Kiribati The people of Kiribati are afraid that one day in the not-too-distant future, their country will disappear from the face of the earth—literally. Several times this year, the Pacific island nation has been flooded by a sudden high tide. These tides, which swept across the island and destroyed houses, came when there was neither wind nor rain. "This never happened before," say the older citizens of Kiribati. What is causing these mysterious high tides? The answer may well be global warming. When fuels like oil and coal are being burned, pollutants (污染物) are released; these pollutants trap heat in the earth's atmosphere. Warmer temperatures cause water to expand and also create more water by melting glaciers (冰川) and polar (极地的) ice caps. If the trend continues, scientists say, many countries will suffer. Bangladesh, for example, might lose one-fifth of its land. The coral (珊瑚) island nations of the Pacific, like Kiribati and the Marshall Islands, however, would face an even worse fate—they would be swallowed by the sea. The loss of these coral islands would be everyone's loss. Coral formations are home to more species than any other place on earth. The people of these nations feel frustrated. The sea, on which their economies have always been based, is suddenly threatening their existence. They don't have the money for expensive technological solutions like seawalls. And they have no control over the pollutants, which are being released mainly by activities in large industrialized countries. All they can do is to hope that industrialized countries will take steps to reduce pollution.

单选题George is very proud of his new status in the company. A. statue B. office C. state D. professional position

单选题It is ridiculous to dispute about such things. A. foolish B. shocking C. frightening D. amusing

单选题 Academic Mobility Scholars and students have always been great travelers. "Academic mobility" is now often stated as a fundamental necessity for economic and social progress in the world, but it is certainly noting new. Serious students were always ready to go abroad in search of the most stimulating teachers and the most famous academies; in search of the purest philosophy, the most effective medicine, the likeliest road to gold. Mobility of this kind means also mobility of ideas, their transference across frontiers, their simultaneous impact upon many groups of people. The point of learning is to share it, whether with students or with colleagues; one presumes that only eccentrics have an interest in being credited with a startling discovery, or a new technique. It must also have been reassured to know that other people in other parts of the world were about to make the same discovery or were thinking along the same lines, and that one was not quite alone, confronted by inquisition, ridicule or neglect. In the twentieth century, and particularly in the last twenty years, the old footpaths of the wandering scholars have become vast highways. The vehicle which has made this possible has of course been the aero plane, making contact between scholars even in most distant places immediately feasible, and providing for the very rapid transmission of knowledge. Apart from the vehicle itself, it is fairly easy to identify the main factors which have brought about the recent explosion in academic movement. Some of these are purely quantitative and require no further mention: there are far more centers of learning, and a far greater number of scholars and students. In addition, one must recognize the very considerable multiplication of disciplines, particularly in the sciences, which by widening the total area of advanced studies has produced an enormous number of specialists whose particular interests ale precisely defined. These people would work in some isolation if they were not able to keep in touch with similar isolated groups in other countries.

单选题下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。 {{B}}第一篇{{/B}} Many features similar to those aeronautical innovations developed by man can be observed amongst birds, insects and plants. At times, observations of these natural phenomena have inspired man to imitate nature and modify existing designs. At other times, the natural example has only been recognized well after great amounts of time and valuable materials have been devoted to refining a similar human invention. Birds deserve credit not merely for demonstrating flight was possible, but for providing templates for the shape of aircraft wings. The wings of birds suggested the pattern for leadingedge wing slots that improve ascent at slow speeds and for conical cambered wingtips that increase lift and stability. Other characteristics of bird wings, such as a trailing edge flap to aid in smooth landings, were not recognized as important until they had been designed independently by aeronautical engineers. Considerable research effort in aeronautics could probably have been saved by more thorough analysis of bird flight. The insect world has also contributed significant ideas in the realms of navigation and guidance. In order to aid airline navigation during take-offs and landings under adverse weather conditions, engineers developed a system for locating the sun when it was hidden by clouds through observing polarized light—light which travels in a single direction. The research was instigated(鼓励,激发)after studies of honey bees demonstrated that they used this mechanism to determine their location when the sky was darkened. In another credit to the insect world, the evasive guidance systems of certain missiles use angular acceleration detectors modeled after the multi-lensed eyes of houseflies which amplify subtle movements by splitting images into a mosaic(马赛克)resembling a large display of televisions tuned to the same channel. Even entities which never take flight themselves are responsible for guiding the hand of aeronautical engineers. The winged seed of a palm tree was the model for an early glider, and the single-winged, autorotating maple seed was the prototype for a means of air-dropping cargo by parachute.

单选题Eleanor Roosevelt urged legislation to {{U}}assist{{/U}} the poor and oppressed.

单选题 Immigration Immigration is the act of coming to a foreign country to live. The act of leaving one's country to settle in another is called emigration. Immigrants who flee their country because of persecution, war, or such disasters as famines or epidemic are known as refugees or displaced persons(DP's). Most people find it very hard to pull up roots in their native land and move to a strange country. But throughout history, countless millions of people have done so. The heaviest immigration worldwide took place from the early 1800's to the Great Depression-the economic hard times of the 1930's. In that period, about 60 million people moved to a new land. Most came from Europe. More than half immigrated to the United States. Other destinations included Canada, Argentina, Brazil, Australia, New Zealand and South Africa. Today, the availability of fast, safe and cheap transportation helps make migration easier. Asia is replacing Europe as the major immigrant-sending area. The United States remains the chief receiving nation. People forsake their homeland and move to another country for various reasons. The main reason for immigration has long been economic opportunity-the lure of better land or a better job. During the 1800's, for example, the rich prairie land of the United States and Canada attracted many European farmers. Today, professional people commonly emigrated because of better opportunities elsewhere. Such emigration has sometimes been called brain drain. For example, many Philippine doctors and nurses and numerous Indian engineers and scientists have moved to the United States and Australia. Religious persecution has led many people to move to a new land for the freedom to practice their faith. Such immigrants include Jews expelled from England in the 1200's. Wars, revolutions, and political unrest have driven innumerable people to find new homes. In the 1990's alone, millions of refugees fled from warfare in Iraq, Rwanda, Liberia, and Bosnia-Herzegovina. Some immigrants were brought to a new land against their will. From the 1500's to the 1800's, Europeans shipped black Africans to the Western Hemisphere as slaves. The United Kingdom transported convicts to Australia from the late 1700's to the 1860's to relieve over crowding in British jails. Before that time, the United Kingdom sent convicts to the American colonies. Immigrants have make enormous contributions to the culture and economy of such nations as Australia, New Zealand, Israel, Argentina, Brazil, Canada and the United States. But their accomplishments have been made with great difficulty. Many of the receiving countries have restricted immigration to maintain a homogeneous society in which all the people shared the same ethnic, geographic, and cultural background. Although some immigration laws have been relaxed, many newcomers of different backgrounds still face challenges in gaining acceptance.

单选题As a writer, he {{U}}turned out{{/U}} three novels that year.

单选题Migrant Workers In me past twenty years, there has been all increasing tendency for workers to move from one country to another. While some countries have restricted most (51) to local people, others have attracted and welcomed migrant workers. This is particularly the case in the Middle East, (52) increased oil incomes have enabled many countries to call in outsiders to improve local facilities. Thus the Middle East has attracted oil-workers (53) he U.S.A. and Europe. It has also brought in workers from many other countries, (54) South Korea and Japan. In view of the difficult living and working (55) in the Middle East, it is not surprising that the pay is high to attract suitable workers. Many engineers and technicians can (56) at least twice as much money in the Middle East as they Carl in their own country, and this is a major (57) . Sometimes a disadvantage has a compensating advantage. For example, the (58) living conditions often lead to increased friendship when workers have to (59) on each other for safety and comfort. In a similar way, many migrant workers can save large sums of money partly because of the (60) of entertainment facilities. The work is often complex and full of problems but this merely presents greater challenge to engineers who prefer to find solutions to problems rather than do (61) work in their home country. One major problem which (62) migrant workers in the Middle East is that their jobs are temporary ones. They are nearly always on (63) , so it is not easy for them to plan ahead with great confidence. This is to be (64) since no country welcomes a large number of foreign workers as permanent residents. In any (65) , migrant workers accept this disadvantage, along with others, because of the considerable financial benefits which they receive.

单选题Oceanography Oceanography has been defined as "the application of all sciences to the study of the sea. " Before the nineteenth century, scientists with an interest in the sea were few. Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant to go to sea to farther his work. For most people the sea was remote, and with the exception of early intercontinental (大陆间的 ) travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question-" what is at the bottom of the oceans?" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile(起伏形状)of the route to estimate the length of cable that had to be manufactured. It was to Maury of the LIS Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings(测水深) were taken to investigate the depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much. popular interest in his book "The Physical Geography of the Sea". The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairing it was found to be covered with living creatures, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea. Within a few years oceanography was under way. In 1872, Thomson led a scientific expedition (考察), which lasted for four years and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to a five-volume report, the last volume being published in 1895.

单选题Which of the following statements about Eta Carinae is NOT true?