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}}American civil war{{/B}} Historians of the war can be divided into two schools. The first considers that it was the unavoidable outcome of conflicting {{U}}(51) {{/U}} between Northern and Southern {{U}}(52) {{/U}}. The second blames it {{U}}(53) {{/U}} political leaders for {{U}}(54) {{/U}} to avert an unnecessary war. Analysts are also divided on whether the issue of slavery was the primary cause of the war, or a symptom of other, more {{U}}(55) {{/U}} differences—especially sectional interests and the doctrine of states' rights—between the North and South which had been developing since the formation of the American republic. The fundamental {{U}}(56) {{/U}} was economic. In the early 1840s the Northern states began the process of industrialization, modernizing their society to meet the demands of economic change. In {{U}}(57) {{/U}}, the slogan of Abraham Lincoln's Republican party, "free labour, free land, free man" encapsulated the ideology of valuing the freedom of individuals to grasp the {{U}}(58) {{/U}} for economic self-advancement in a booming, expanding society. The Southern states remained stubbornly {{U}}(59) {{/U}} both economically and socially. It was a backward-looking way of life of tall white mansions on great {{U}}(60) {{/U}} dependent on a labour system which made slaves of approximately 4 million black Americans. America was {{U}}(61) {{/U}} divided by economic structure, and was led into fratricidal(杀同胞的) warfare by a series of political clashes. The most common cause was the future of the West. The crises over California's admission in 1850 and over Kansas-Nebraska in 1854 were {{U}}(62) {{/U}} of the divergent economic interests of North and South in relation to the West. The North wanted free land for independent labour in the same new territories where the South {{U}}(63) {{/U}} to perpetuate its traditional way of life by extending slavery. The issue was not the slavery already practised, but the {{U}}(64) {{/U}} of its extension {{U}}(65) {{/U}} the West.

单选题He paused, waiting for her to （digest） the information.

单选题But ultimately he gave in. A. in the end B. surely C. certainly D. lately

单选题I hope you can submit you term papers before the deadline.

单选题第三篇 Unpredictable Earthquake Humans are forever forgetting that they can"t control nature. Exactly 20 years ago, a Time magazine cover story announced that "scientists are on the verge of being able to predict the time, place and even the size of earthquakes." The people of quake-ravaged (被地震破坏的) Kobe learned last week how wrong that assertion was. None of the methods conceived two decades ago has yet to discover a uniform wanting signal that preceded all quakes, let alone any sign that would tell whether the coming temblor (地震) is mild or a killer. Earthquake formation can be triggered by many factors, says Hiroo Kanamori, a seismologist (地震学家) at the California Institute of Technology. So, finding one all-purpose warning sign is impossible. One reason: Quakes tart deep in the earth, so scientists can"t study them directly. If a quake precursor were found, it would still be impossible to ward humans in advance of all dangerous quakes. Places like Japan and California are riddle with hundreds, if not thousands, of minor faults. Prediction would be less important if scientists could easily build structures to withstand tremors. While seismic engineering has improved dramatically in the past 10 to 15 years, every new quake reveals unexpected weakness in "quake-resistant" structures, says Terry Tullis, a geophysicist at Brown University. In Kobe, for example, a highway that opened only last year was damaged. In the Northridge earthquake, on the other hand, well-built structures generally did not collapse. A recent report in Science adds yet more anxiety about life on the faulty lines. Researchers Fan computer simulations to see how quake resistant buildings would fall in a moderate size temblor, taking into account that much of a quake"s energy travels in a large "pulse" of focused shaking. The results: both steel-frame buildings and buildings that sit on insulating rubber pads suffered severe damage. More research will help experts design stronger structures and possibly find quake precursors. But it is still a certainty that the next earthquake will prove once again that every fault cannot be monitored and every highway cannot be completely quake-proofed.

单选题We shall take the treasure away to a Usafe/U place.

单选题Mary has blended the ingredients.

单选题The mother was aftaid to let her boy risk ______.A. climbsB. to climbC. climbedD. climbing

单选题He talks tough but has a Utender/U head.

填空题 Ford1 Ford's great strength was the manufacturing process—not invention. Long before he started a car company, he was a worker, known for picking up pieces of metal and wire and turning them into machines. He started putting cars together in 1891. Although it was by no means the first popular automobile, the Model T showed the world just how creative Ford was at combining technology and market.2 The company's assembly line alone threw America's Industrial Revolution into overdrive (高速运转). Instead of having workers put together the entire car, Ford's friends, who were great toolmakers from Scotland, organized teams that added parts to each Model T as it moved down a line. By the time Ford's Highland Park plant was humming (嗡嗡作响) along in 1914, the world's first automatic conveyor belt could turn out a car every 93 minutes.3 The same year Henry Ford shocked the world with the $5-a-day minimum wage scheme, the greatest contribution he had ever made. The average wage in the auto industry then was $2.34 for e 9-hour shift. Ford not only doubled that, he also took an hour off the Workday. In. those years it was unthinkable that a man could be paid that much for doing something that didn't involve an awful lot of training or education. The Wall Street Journal called the plan "an economic crime", and critics everywhere laughed at Ford.4 But as the wage increased later to daily $10, it proved a critical component of Ford's dream to make the automobile accessible (可及的) to all. The critics were too stupid to understand that because Ford had lowered his costs per car, the higher wages didn't matter—except for making it possible for more people to buy cars.