单选题The plane was fatally crippled when the rear cargo door was pulled off in flight.

单选题If wool is submerged in hot water, it tends to shrink. A．smell B．fade C．unravel D．contract

单选题He ceaselessly interrupted me by asking many irrelevant questions.

单选题Einstein"s Theory of Relativity was so profound that only a few scientists could understand it.

单选题He has a very outgoing personality and it is easy for him to makes friends.A. abilityB. characterC. realityD. attitude

单选题These programmes are of {{U}}enormous{{/U}} value to old people. A. natural B. fatal C. tiny D. immense

单选题The high-speed trains can have a major impact on travel preferences

单选题The room was furnished with the simplest essentials, a bed, a chair, and a table.

单选题Mary just told us a very fascinating story.

单选题World Crude Oil Production may Peak a Decade Earlier Than Some Predict In a finding that may speed efforts to conserve oil, scientists in Kuwait predict that world conventional crude oil production will peak in 2014. This prediction is almost a decade earlier than some other predictions. Their study is in ACS" Energy Fuels. Ibrahim Nashawi and colleagues point out that rapid growth in global oil consumption has sparked a growing interest in predicting "peak oil". "Peak oil" is the point where oil production reaches a maximum and then declines. Scientists have developed several models to forecast this point, and some put the date at 2020 or later. One of the most famous forecast models is called the Hubbert model. It assumes that global oil production will follow a bell shaped curve, a related concept is that of "Peak Oil". The term "Peak Oil" indicates the moment in which world wide production will peak, afterwards to start on irreversible decline. The Hubbert model accurately predicted that oil production would peak in the United States in 1970. The model has since gained in popularity and has been used to forecast oil production worldwide. However, recent studies show that the model is insufficient to account for more complex oil production cycles of some countries. Those cycles can be heavily influenced by technology changes, politics, and other factors, the scientists say. The new study describes development of a new version of the Hubbert model that provides a more realistic and accurate oil production forecast. Using the new model, the scientists evaluated the oil production trends of 47 major oil-producing countries, which supply most of the world"s conventional crude oil. They estimated that worldwide conventional crude oil production will peak in 2014, years earlier than anticipated. The scientists also showed that the world"s oil reserves are being reduced at a rate of 2.1 percent a year. The new model could help inform energy, which related decisions and public policy debate, they suggest.

单选题Safety is always our primary concern.A. leastB. secondaryC. lastD. chief

单选题Every new venture has the possibility of making or losing money.

单选题A Thirsty World The world is not only hungry; it is also thirsty for water. This seems strange to you, since nearly 75% of the earth's surface is covered with water. But about 97% of this huge amount is from sea-water, or salt water. Man can only drink and use the other 3%—the fresh water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of iceberg (冰山) and glaciers (冰川). Even worse, some of it has been polluted. At the moment, this small amount of fresh water is still enough for us. However, our need for water is increasing rapidly. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture and industry. In addition to stopping wasting our precious water, one useful step we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale. Today, in most large cities tanks, water is used only once and it eventually returns to the sea or runs into underground storage tanks. But it is possible to pipe water that has been used to a purifying (净化) plant. There it can be filtered (过滤) and treated with chemicals so that it can be used again just as it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. Where could we turn next? To the oceans! All we'd have to do to make use of the vast amount of sea-water is—remove the salt. This salt-removing process is already in use in many parts of the world.

单选题He was tempted by the high salary offered by the company.

单选题The council meeting terminated at 2 o’clock

单选题Tickets are limited and will be {{U}}allocated{{/U}} to those who apply first.

单选题The umbrella was ingeniously devised to fold up into the pocket.

单选题Mother Nature Shows Her Strength Tornadoes and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening. The storms were dramatic and dangerous. George Snyder was driving the fire truck down Route 88 when he first noticed that a funnel cloud was behind him. "I stopped the truck and watched the funnel cloud. It was about 100 feet off the ground and I saw it go up and down for a while. It was moving toward Bradley Road and then suddenly it disappeared," Snyder said. Snyder only saw one of the funnel clouds that passed through northeastern Ohio on Saturday. In Trumbull County, a tornado turned trees onto their sides. Some trees fell onto houses and cars. Other trees fell into telephone and electrical wires as they went down. Amanda Symcheck was having a party when the storm began. "Knew something was wrong," she said. "I saw the sky go green and pink. Then it sounded like a train rushing toward the house. I started crying and told everyone to go to the basement for protection." The tornado caused a lot of damage to cars and houses in the area. It will take a long time and much money to repair everything. There was also serious water damage from the thunderstorms. The heavy rains and high wind caused the power to go out in many homes. The storms caused serious flooding in areas near the river. More than four inches of rain fell in parts of Trumbull County. The river was so high that the water ran into streets and houses. Many streets had to be closed to cars and trucks because of the high water. This made it difficult for fire trucks, police cars and other rescue vehicles to help people who were in trouble. Many people who live near the river had to leave their homes for their own safety. Some people reported five feet of water in their homes. Local and state officials opened emergency shelters for the people who were evacuated. The Red Cross served meals to them. "This was a really intense storm," said Snyder. "People were afraid. Mother Nature can be fierce. We were lucky this time. No one was killed."

单选题He was elevated to the post of prime minister. A. pulled B. promoted C. lifted D. treated

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}} {{B}}The Acquisition of Two Companies{{/B}} The Provident Companies, the No. 2 seller of individual disability insurance policies, agreed yesterday to buy the No. 1 insurer in the field in a deal that would give it more than 1/3 of the market. The $1.2 billion deal would eliminate about 600 jobs, give a big Swiss money-losing policies sold by the insurer that is being acquired, the Paul Revere company. Last year Provident's insurance units had $2.6 billion in premium revenues and Paul Revere had $1.5 billion. About 57 percent of the combined $4.1 billion in premiums came from disability policies that were sold to individuals. Provident's next largest competitor, the UNUM Corporation, has about 10 percent of the market. Paul Revere has been controlled since 1985 by Textron Inc. Textron acquired the insurer when it bought Avco Financial Services, which makes high interest rate loans to people whose employment and credit histories make them too risky for bank loans. James F. Hardymon, Textron's chairman and chief executive, said the sale "reinforces Textron's strategy to focus on its core manufacturing and finance businesses." He said, that up to half the income might be used to pay down the company's more than $10 billion of debt or to buy back stock. Paul Revere's remaining public shareholders will get $26 in cash for each share, Provident stock worth $26, or $20 in cash and Provident stock worth $6. To finance the deal, Provident is getting a $300 million infusion of cash from the Zurich insurance Group of Switzerland, which is buying a 15.2% stake in Provident under an agreement allowing it to increase the stake to 40%. Provident, which is based in Chattanooga, Tenn., announced a $423 million write-off on individual disability policies in December 1993. Paul Revere, which is based in Worchester, Mass., has not taken a similar write-off, said John M. Hanon, an analyst at Derby Securities. Provident, Paul Revere and other companies have previously said that they had to pay claims on diseases not even known when the policies were written and that many disability claims resulted in larger than expected benefits payment. The deal drew mixed responses from insurance ratings agencies, which had ranked both companies in the upper grades, indicating a strong likelihood that they would be able over the long haul to pay claims.