单选题The President made a brief visit to Beijing. A. short B. working C. formal D. secret

单选题If I made a mistake, I will try to remedy it.

单选题{{B}}第二篇{{/B}} {{B}} Too Late to Regret It{{/B}} When I was a junior, I met a second-year student in my department. He wasn't tall or good-looking, but he was very nice, attractive and athletic. He had something that I admired very much. He was natural, warm, and sincere. I disregarded (不顾) my parents' disapproval. We were very happy together. He picked me up from my dorm every morning, and after class we would sit alongside the stream that ran through campus, or sunbathe (晒太阳) on the lawn. At night he would walk me back to my dorm. He came from a poor family, but in order to make me happy, he borrowed money from his friend to buy presents and meals for me. Our fellow students looked up to him as a role model, and the girls envied (妒忌) me. He wasn't a local, but wanted to stay here after graduation. I thought we had a future together. However, when I got a part-time job during the summer vacation, people began giving me a lot of pressure, saying that a pretty, intelligent girl like me should find a better guy to spend time with. This was also what my family thought. He spent the summer in his hometown, so I was all by myself. When he got back, I began finding fault with him. But his big heart and warmth soon drove all unpleasant thoughts away. However, I had no idea how badly I had hurt him and that things would get worse. I had a good part-time job off campus that paid pretty well. With my good performance at school, I also got admission to graduate school at one of China's best universities. He, on the other hand, did not do so well at school or at work. I had to worry about his living expenses, job and scores. Almost all my colleagues and friends advised me to break up with him. Then we had a quarrel last June. He was in great pain, and my cold words and bad moods started turning him away. Graduation time was drawing near, and he said he wanted to go back to his hometown. He said that he couldn't put up with me anymore. I was shocked and looked at him in despair. True love happens only once, but I found it out too late.

单选题Her voice is distinct and unique. You can tell her voice immediately.A. commonB. speciesC. specificD. special

单选题The depiction of the lives of black people in the south is graphic .

单选题Weather Map A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather changes. Weather forecasts are able to determine the speed of air masses and fronts; to determine whether an individual pressure area is deepening or becoming shallow and whether a front is increasing or decreasing in intensity. They arc also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a synoptic picture of conditions in the atmosphere at a given time. All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States weather Bureau issues information about approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day "outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an analysis of the upper air levels with often set the stage for the development of air masses, fronts, and storms. Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies. But the limitations of weather modification have prevented meteorological results except in the seeding of super-cooled, upslope mountainous winds which have produced additional orographical precipitation on the windward side of mountain ranges. Nevertheless, they have provided a clearer understanding of the fundamentals of weather elements.

单选题 Business has slowed, layoffs mount, but executive pay continues to roar-at least so far. Business Week's annual survey finds that chief executive officers (CEOs) at 365 of the largest companies got compensation last year averaging $3.1 million-up 1.3 percent from 1994. Why are the top bosses getting an estimated 485 times the pay of a typical factory worker? That is up from 475 times in 1999 and a mere 42 times in 1980. One reason maybe what experts call the "Lake Wobegon effect". Corporate boards tend to reckon that "all CEOs are above average" -a play on Garrison Keillor's famous line in his public radio show, A Prairie Home Companion, that all the town's children are "above average". Consultants provide boards with surveys of corporate CEO compensation. Since directors are reluctant to regard their CEOs as below average, the compensation committees of boards tend to set pay at an above-average level. The result: pay levels get ratcheted (一步步地增加) up. Defenders of lavish CEO pay argue there is such a strong demand for experienced CEOs that the free market forces their pay up. They further maintain most boards structure pay packages to reflect an executive's performance. They get paid more if their companies and their stock do well. So companies with high-paid CEOs generate great wealth for their shareholders. But the supposed cream-of-the-crop executives did surprisingly poorly for their shareholders in 1999, says Scott Klinger, author of this report by a Boston-based Organization United for a Fair Economy. If an investor had put $10,000 apiece at the end of 1999 into the stock of those companies with the 10 highest-paid CEOs, by year-end 2000 the investment would have shrunk to $8,132. If $10,000 had been put into the Standard & Poor's 500 stocks, it would have been worth $9,090. To Mr. Klinger, these findings suggest that the theory that one person, the CEO, is responsible for creating most of a corporation's value is dead wrong. "It takes many employees to make a corporation profitable." With profits down, corporate boards may make more effort to tame executive compensation. And executives are making greater efforts to avoid pay cuts. Some CEOs, seeing their options "under water" or worthless because of falling stock prices, are seeking more pay in cash or in restricted stock.

单选题Henry cannot resist the lure of drugs. A. abuse B. flavor C. temptation D. consumption

单选题Hundreds of cyclists {{U}}assembled{{/U}} in Central Park in Pudong this morning to take part in the event.

单选题Every store along that street has Usustained/U some damage in the fire.

单选题Mary Ucalled/U me up very late last night.

单选题Loud noise can be annoying.A. hatefulB. painfulC. horrifyingD. irritating

单选题Making Light of Sleep All we have a clock located inside our brains. Similar to your bedside alarm clock, your internal clock 1 on a 24-hour cycle. This cycle, 2 a circadian (昼夜节奏的，生理节奏的) rhythm, helps control when you wake, when you eat and when you sleep. Somewhere around puberty (青春期), 3 happens in the timing of the biological clock. The clock pushes forward, so adolescents (青少年) and teenagers are unable to fall asleep as early as they 4 to. When your mother tells you it"s time 5 bed, your body may be pushing you to stay up for several hours more. And the light coming from your computer screen or TV could be pushing you to 6 even later. This shift is 7 for teenagers. But staying up very late and sleeping late can get your body"s clock out of sync (同步) with the cycle of light and dark. It can also make it hard to get out of bed in the 8 and may bring other problems, too. Teenagers are put in a kind of gray cloud 9 they don"t get enough sleep, says Mary Carskadon, a sleep researcher at Brown University in Providence, RI. It 10 their mood and their ability to think and learn. But just like your alarm clock, your internal clock can be reset. In fact, it 11 resets itself every day. How? By using the light it gets through your 12 . Scientists have known for a long time that the light of day and the dark of night 13 important roles in setting our internal clocks. For years, researchers thought that the signals that synchronize the body"s 14 were handled through the same pathways that we use to see. 15 recent discoveries show that the human eye has two separate light-sensing systems. One system allows us to see. The second system tells our body whether it"s day or night.

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

单选题Mother Nature Shows Her Strength Tornadoes (龙卷风) 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 (漏斗状的) 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. "I knew something was wrong," he said. "I saw the sky go green and pink (粉红色). 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 10t 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 (撤走). 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It was a fascinating painting, with clever use of color and light.

单选题The police crept up from behind and took the gangster by surprise.

单选题 California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality, now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt (兆瓦) of power beamed down from solar-power satellites beginning in 2016. But some major challenges will have to be overcomed if the technology is to be used widely. A start-up company called Solaren is designing the satellites, which it says will use radio waves to beam energy down to a receiving station on Earth. The attraction of collecting solar power in space is the almost uninterrupted sunshine available in eosynchronous (与地球同步的) orbit. Earth-based solar cells, by contrast, can only collect sun light during daytime and when skies are clear. But space-based solar power must grapple (努力克服) with the high cost per kilogram of launching things into space, says Richard Schwartz of Purdue University in West Lafayette, Indiana, "If you're talking about it being economically viable or power of the Earth, it's a tough go." he says. Cal Boerman, Solaren's director of energy services, says the company designed its satellites with a view to keeping launch costs down. "We knew we had to come up with a different, revolutionary design, " he says. A patent the company has won describes ways to reduce the system's weight, including using inflatable minors to focus sunlight on solar cells, so a smaller number cancollect the same amount of energy. But using minors introduces other challenges, including keeping the solar cells from overheating, says Schwartz. "You have to take care of heat dissipation(散发)because you're now concentrating a lot of energy in one place," he says. According to the company's patent, Solaren's solarcells will be connected to radiators to help keep them cool. Though Boerman says the company believes it can make space-based solar power work, it is not expecting to crowd out other forms of renewable energy. Laws in California and other states requireincreasing use of renewable energy in coming years, he points out. "To meet those needs, we're going to need all types of renewable energy sources," he says.

单选题The leaves have been swept into huge heaps.

单选题Do we have to wear these name Utags/U?