单选题阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项；如果该句提供的是错误信息，请选择B项；如果该句信息文章中没有提及，请选择C项。 {{B}} A New Start{{/B}} After Christmas comes the anti-Christmas. If the festive season is all about filing up on the things you like that are bad for you, then the new year is the 'detox season' - when people across the western world adopt special diets to lose weight and get fid of the vague feeling that they have spent the last few weeks poisoning themselves. But are detox diets really necessary? After all, the body itself gets fid of unwanted substances. That's what the liver and kidney are for. "The detox fad - or fads, as there are many methods - is an example of the capacity of people to believe in and pay for magic despite the lack of any sound evidence," says Martin Wiseman, professor of human nutrition at the University of Southampton in the UK. Most of the pills, juices, teas and oils that are sold for their detoxifying effects on the body have no scientific foundation for their claims, according to the research. People would be better off having a glass of water and going to bed early. Detox diets may be magic rather science, but they are the kind of magic which many people want to perform. That may have something to do with the western diet in general. Scientists and dieticians argue that the benefits people feel are not due to their body getting fid of excessive toxins but are due to changing from what is likely to have been a 'poor' diet. Having fewer headaches, for example, is probably the result of being fully hydrated due to drinking so much water and better skin may be due to eating more fruit and vegetables. Detox diets may also be dangerous, as they may deprive vulnerable groups - pregnant women, for instance, or growing teenagers - of the kind of nutrients they need. Yet their popularity continues to rise. This may be something to do with the way that food works within many western cultures. Generally, a country's food develops along with its economy and society. Food becomes part of a person's cultural identity. In some countries, this link has been broken. In the UK, for example, rapid industrialization in the 18th and 19th centuries saw millions of people move from the countryside to the towns interrupting the development of a national cuisine. The United States, a country of immigrants from many different places, has found it hard to develop a national cuisine. In both places, comparatively few people cook for themselves and food supply is dominated by big processing and agribusiness companies. Detox diets are more popular in these countries than in places like France and Italy, where strong links between food and national culture remain, and where far more people regularly cook for themselves instead of buying processed foods. Perhaps detox diets are successful because many westerners have lost trust in what they eat. On the other hand, they may help re-introduce people to the kind of food that is necessary for a healthy diet. And after learning that, they won't poison themselves in the first place. This would mean radical changes in the way that people cat across the west. And that would be an unwelcome development for the food industry. From the business point of view, it is much better to sell people the problem and then sell them the solution.

单选题 When We Are Asleep Everyone dreams, but some people never recall their dreams, or do so very rarely. Other people always wake up with vivid recollections (记忆) of their dreams, though they forget them very quickly. In an average night of eight hours' sleep, an average adult will dream for around one hundred minutes, probably having three to five dreams, each lasting from ten to thirty minutes. Scientists can detect when someone is having a dream by using an instrument which measures the electrical waves in the brain. During dreaming, these waves move more quickly. Breathing and pulse rate also increase, and there are rapid eye movements under the lids, just as though the dreamer were really looking at moving objects. These signs of dreaming have been detected in all mammals (哺乳动物) studied, including dogs, monkeys, cats, and elephants, and also some birds and reptiles (爬行动物). This period of sleep is called the "D" state for around 50% of their sleep; the period reduces to around 25% by the age of 10. Dreams take the form of stories, but they may be strange and with incidents not connected, which make little sense. Dreams are seldom without people in them and they are usually about people we know. One estimate says that two-thirds of the "cast" of our dream dramas are friends and relations. Vision seems an essential part of dreams, except for people blind from birth. Sound and touch senses are also often aroused, but smell and taste are not frequently involved. In "normal" dreams, the dreamer may be taking part, or be only an observer. But he or she cannot control what happens in the dream. However, the dreamer does have control over one type of dream. This type of dream is called a "lucid" (清醒的) dream. Not everyone is a lucid dreamer. Some people are occasional lucid dreamers. Others can dream lucidly more or less all the time. In a lucid dream, the dreamer knows that he is dreaming.

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}}Save Energy at Home{{/B}} On the average, Americans waste as much energy as two-thirds of the world's population consumes. That's{{U}} (1) {{/U}}the result of driving inefficient cars, using inefficient appliances, and living and working in poorly insulated buildings. Then what can you do to improve the{{U}} (2) {{/U}}? Buy energy-efficient products.—Buy new appliances or electronics of the highest energy efficiency rating. New energy efficient models may cost more initially, but have a lower operating{{U}} (3) {{/U}}over their lifetimes. The most energy-efficient models{{U}} (4) {{/U}}the Energy Star label, which identifies products that use 20-40 per cent less energy than standard new products. According to the EPA, the typical American household can save about $-400 per year in{{U}} (5) {{/U}}bills with products that carry the Energy Star. Switch to compact fluorescent bulbs. —Change the three bulbs you use{{U}} (6) {{/U}}in your house to compact fluorescents. Each compact fluorescent bulb will keep half a ton of carbon dioxide out of the air over its lifetime.{{U}} (7) {{/U}}, compact fluorescent bulbs last ten times as long and can save $-30 per year in electricity costs. Set heating and cooling temperatures correctly.—Check thermostats in your home to make sure they are{{U}} (8) {{/U}}at a level that doesn't waste energy. Get an electronic thermostat that will allow your furnace to heat the house to a lower temperature when you're sleeping and retum it to a more{{U}} (9) {{/U}}temperature before you wake up. Turn off the lights.—{{U}} (10) {{/U}}lights and other electrical appliances such as televisions and radios when you're not using them. Install automatic timers for lights that people in your house frequently forget to turn them off when{{U}} (11) {{/U}}a room. Choose renewable energy.—Many consumers can now choose their energy supplier. If you have a choice, choose an electric utility that uses renewable power{{U}} (12) {{/U}}, such as solar, water or wind. Let the sun shine In.—The cheapest and most energy—efficient light and heat source is often right outside your windows. On{{U}} (13) {{/U}}days, open blinds to let the sun light your home for free. Also remember that{{U}} (14) {{/U}}entering a room equals passive solar heating. Even on cold winter days, sun streaming into a room can raise the temperature by several{{U}} (15) {{/U}}. dioxide n. 二氧化物 insulate adj.隔热 thermostat n.温度自动调节 rating n.等级级别 timer n.定时器 fluorescent adj.荧光的 blind n.百叶

单选题The monopoly-capitalist group {{U}}annexed{{/U}} many smaller enterprises last year. A. integrated B. merged C. combined D. collected

单选题Storms Sink Ships Rescuers have found the bodies of over 130 people killed in two ferry disasters in Bangladesh. The accidents happened during a storm that hit the country on April 21. Hundreds more are missing or feared dead. The two ferries sank in different rivers near the capital city of Dhaka as strong winds and rain hit the South Asian country. The government has since banned all ferries and other boats from travelling at night during the April-May stormy season. One of the ferries, MV Mitali, was carrying far more people than it was supposed to. About 400 passengers fitted into a space made for just 300, police said. The second ferry carried about 100 passengers. "The number of deaths is certain to rise," said an official in charge of the rescue work. "No one really knows how many people were on board the ferry or how many of them survived." Ferries in Bangladesh don"t always keep passenger lists, making it difficult to determine the exact number of people on board. Besides the ferry accidents, at least 40 people were killed and 400 injured by lightning strikes, falling houses and trees and the sinking of small boats. Storms are common this time of year in Bangladesh, as are boating accidents. Ferry disasters take away hundreds of lives every year in a nation of 130 million people. Officials blame these river accidents on a lack of safety measures, too many passengers in boats and not enough checks on weather conditions. Ferries are a common means of transport in Bangladesh. It is a country covered by about 230 rivers. Some 20,000 ferries use the nation"s waterways (水路) every year. And many of them are dangerously overcrowded (过度拥挤). Since 1977, more than 3,000 people have died in some 260 boating accidents.

单选题Fear clutched at her heart.

单选题Spielberg says he makes movies for

单选题The Only Way Is Up Think of a modem city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don't permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cities, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought us the lift - or elevator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley system the Egyptians used to create the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention, In fact, he spent a number of years exhibiting lifts at fairgrounds, giving people the chance to try them out before selling the idea to architects and builders. A lift would not be a very good theme park attraction now. Going in a lift is such an everyday thing that it would just be boring. Yet psychologists and others who study human behavior fund lifts fascinating. The reason is simple. Scientists have always studied animals in zoos. The nearest they can get to that with humans is in observing them in lifts. "It breaks all the usual conventions about the bubble of personal space we carry around with us — and you just can't choose to move away," says workplace psychologist, Gary Fitzgibbon. Being trapped in this setting can create different types of tensions, he says. Some people are scared of them. Others use them as an opportunity to get close to the boss. Some stand close to the door. Others hide in the corners. Most people try and shrink into the background. But some behave in a way that makes others notice them. There are a few people who just stand in a corner taking notes, Don't worry about them. They are probably from a university.

单选题The joys of travel, having long overlooked the disabled, are opening up to virtually anyone who has the means.

单选题Creating a World without Smoking Smoking will be banned in all pubs, clubs and workplaces from next year after historic votes in the Commons last night. After last-minute appeals from health campaigners, MPs opted for a blanket prohibition which will start in summer 2007, ending months of argument over whether smokers should be barred in pubs and restaurants only. They voted to ban smoking in all pubs and clubs by 384 to 184, a surprisingly large majority of 200. Smoking will still be allowed in the home and in places considered to be homes, such as prisons, care homes and hotels. Smokers lighting up in banned areas will face a fixed penalty notice of ￡50 and spot fines of ￡ 200 will be introduced for failing to display no-smoking signs, with the possible penalty, if the issue goes to court, increasing to ￡ 1,000. Carpline Flint, the Public Health Minister, also announced that the fine for failing to stop people smoking in banned areas would be increased to ￡ 2,500-more than ten times the ￡ 200 originally proposed. The Bill also allows the Government to increase the age for buying cigarettes. Ministers will consult on raising it from 16 to 18. The Bill now goes to the Lords but will be through by the summer recess. Even a plan to allow smoking to continue in private clubs was thrown out as MPs on all sides were given permission to vote with their conscience rather than on a party line. Patricia Hewitt, the Health Secretary, said the Health Bill would ban smoking in "virtually every enclosed public place and workplace" in England and save thousands of lives a year. Smoke-free workplaces and public places "will become the norm" She said: "An additional 600,000 people will give up smoking as a result of this law and millions more will be protected from second-hand smoke. " Peter Hollins, director-general of the British Heart Foundation, said, "The vote is a landmark victory for the public health of this country and will save the lives of many people. /

单选题Memory It is difficult to imagine what life would be like without memory. The meanings of thousands of everyday perceptions, the basis for the decisions we make, and the roots of our habits and skills are to be found in our past experiences, which are brought into the present by memory. Memory can be defined as the capacity to keep information available for later use. It not only includes "remembering" things like arithmetic or historical facts, but also involves any change in the way an animal typically behaves. Memory is involved when a rat gives up eating grain because he has sniffed (嗅出) something suspicious in the grain pile. Memory exists not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices for storing data for later use. It is interesting to compare the memory storage capacity of a computer with that of a human being. The instant access memory of a large computer may hold up to 100,000 "words"--string of alphabetic or numerical characters ready for instant use. An average U.S. teenager probably recognizes the meaning of about 100,000 words of English. However, this is but a fraction of the total amount of information that the teenager has stored. Consider, for example, the number of faces and places that the teenager can recognize on sight. The use of words is the basis of the advanced problem-solving intelligence of human beings. A large part of a person's memory is in terms of words and combinations of words. But while language greatly expands the number and the king of things a person can remember, it also requires a huge memory capacity, it may well be this capacity that distinguishes humans, setting them apart from other animals.

单选题A lamp was suspended from the ceiling.

单选题This custom is still prevailing among members of the older generation.______

单选题Moderate Earthquake Strikes England A moderate earthquake struck parts of southeast England on 28 April 2007, toppling chimneys from houses and rousing residents from their beds. Several thousand people were left without power in Kent County. One women suffered minor head and neck injuries. "It felt as if the whole house was being slid across like a fun-fair ride," said the woman. The British Geological Survey said the 4.3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel, about 8.5 miles south of Dover and near the entrance to the Channel Tunnel. Witnesses said cracks appeared in walls and chimneys collapsed across the county. Residents said the tremor had lasted for about 10 to 15 seconds. "I was lying in bed and it felt as if someone had just got up from bed next to me." said Hendrick van Eck, 27, of Canterbury about 60 miles southeast of London. "I then heard the sound of cracking, and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down." There are thousands of moderate quakes on this scale around the world each year, but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magnitude quake struck the central England city of Birmingham. The country"s strongest earthquake took place in the North Sea in 1931, measuring 6.1 on the Richter scale. British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain, including one in 1580 that caused damage in London and was felt in France. Musson predicted that it was only a matter of time before another earthquake struck this part of England. However, people should not be scared too much by this prediction, Musson said, as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours before it takes place. This would allow time for people to evacuate and reduce damage to the minimum.

单选题He failed to carry out some of the provisions of the contract, and now he has to take charge of the consequences.

单选题Our English teacher is sick .

单选题She has a deeply moving experience during these years.

单选题下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。 {{B}} The Greatest Mystery of Whales{{/B}} The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive, sucking them - and, like all mammals, originated on land. There are many signs of this. {{U}}(51) {{/U}} front flippers (鳍肢), used for steering and stability, are traces of feet. Immense strength is built into the great body of the big whales, and in fact most of a whale's body is one gigantic muscle. The blue whale's pulling {{U}}(52) {{/U}} has been estimated at 400 horsepower. One specimen was reported to have {{U}}(53) {{/U}} a whaling vessel for seven hours at the {{U}}(54) {{/U}} of eight knots. An enraged whale will attack a ship. A famous {{U}}(55) {{/U}} of this was the fate of whaler Essex, which was sunk {{U}}(56) {{/U}} the coast of South America early in the last century. More recently, steel ships have had their plates buckled (扭曲变形)in the same way. Sperm whales were known to {{U}}(57) {{/U}} the old-time whaleboats in their jaws and crush them. The greatest mystery of whales is their diving ability. The sperm whale can {{U}}(58) {{/U}} the bottom for his favorite food, the octopus (章鱼). {{U}}(59) {{/U}} that search he is known to go as far down as 3,200 feet, where the pressure is 1,400 pounds, to the square inch. Doing {{U}}(60) {{/U}} he will remain submerged (水下的) as long as one hour. Two feats (绝技) are involved in this: storing up enough {{U}}(61) {{/U}} (all whales are air-breathed) and withstanding the great change in pressure. Just {{U}}(62) {{/U}} he does it scientists have not determined. It is believed that some of the oxygen is stored in a special system of blood vessels, rather than just held in the lungs. And {{U}}(63) {{/U}} is believed that a special kind of oil in his head is some sort of compensating mechanism that automatically adjusts the internal pressure of his body. But {{U}}(64) {{/U}} you can't bring a live whale into the laboratory for study, no one {{U}}(65) {{/U}} just how these things work.

单选题{{B}}第一篇{{/B}} {{B}}Effects of Environmental Pollution{{/B}} Scientists watched closely last spring as a haze of pollution, which had been tracked by satellite as it crossed the Pacific Ocean, settled over a large swath of North America from Calgary, Canada, into Arizona. Now it appears that, for the first time. researchers on both sides of the Pacific took detailed measurements of the same plume, a cloud that contained Gobi desert dust as well as hydrocarbons from industrial pollution. Heather Price, a University of Washington doctoral student in chemistry, found that the amount of light reflected by the particles in the air was more than 550 per cent greater than normal for that time of year. The mass of Asian air 4 contained elevated levels of all pollutants measured. Price said, "but the only thing that came close to being alarming was the level of particulate matte." The haze that settled across the western part of the country was widely reported by the news media, and it was measured as far inland as the ski slopes of Aspen, Colo. Readings on the western side of the Pacific came from the Aerosol Characterization Experiments, a project aimed at understanding how particles in the atmosphere affect Earth's climate. Additional measurements were taken in the same region at the same time under a project sponsored by the National Aeronautics and Space Administration. Knowing the pollution was approaching Washington state, Price loaded sensing equipment aboard a rented Beechcraft on April 14 and flew to Neah Bay on the state's Northwest coast. Taking samples at various levels from 15, 000 feet to 20, 000 feet in altitude, she monitored quantities of dust, ozone, carbon monoxide and hydrocarbons. "From my copilot's seat, the dust was thick enough to see with the naked eye." Price said. Now she's trying to correlate her findings with those of the two research teams operating on the other side of the Pacific, where at one point the pollution plume was larger than Japan. The huge size of the cloud showed up clearly in satellite images that gave Price plenty of warning the haze was on its way. "You can see these two blobs coming out of the deserts of Mongolia and growing over Asia, then getting swept out over the ocean and finally setting over North America," she said. She intends to continue measuring air samples off the Washington coast and will be looking for air masses with evidence of pollution originating somewhere other than Asia. "We'd like to see if we can get a signature of pollution coming from Europe because computer models suggest that European sources also can be transported across the Pacific," she said. "However, we expect that sources in Europe will contribute less than Asian sources." haze n. 霾；烟雾 plume n. 羽状物 pollutant n. 污染物 particulate n. 微粒，颗粒 carbon monoxide 一氧化碳 copilot n. (飞机)副驾驶员 blob n. 粘乎乎的一团；黑糊糊的一堆

单选题Hitchhiking When I was in my teens and 20s, hitchhiking was a main form of long-distance transport. The kindness or curiosity of strangers 1 me all over Europe, North America, Asia and Southern Africa. Some of the lift-givers became friends, many provided hospitality 2 the road. Not only did you find out much more about a country than 3 traveling by train or plane, but also there was that element of excitement about where you would finish up that night. Hitchhiking featured importantly in Western culture. It has books and songs about it. So what has happened to 4 ? A few years ago, I asked the same question about hitchhiking in a column on a newspaper. 5 of people from all over the world responded with their view on the state of hitchhiking. "If there is a hitchhiker"s 6 , it must be Iran," came one reply. Rural Ireland was recommended as a friendly place for hitchhiking, 7 was Quebec, Canada—"if you don"t mind being berated for not speaking French." But while hitchhiking was clearly still alive and well in many parts of the world, the 8 feeling was that throughout much of the west it was doomed. With so much news about crime in the media, people assumed that anyone on the open road without the money for even a bus ticket must present a danger. But do we 9 to be so wary both to hitchhike and to give a lift? In Poland in the 1960s, 10 a Polish woman who e-mailed me, "The authorities introduced the Hitchhiker"s Booklet. The booklet contained coupons for drivers, so each time a driver who had 11 somebody, he or she received a coupon. At the end of the season, 12 who had picked up the most hikers were rewarded with various prizes. Everybody was hitchhiking then." Surely this is a good idea for society. Hitchhiking would increase respect by breaking down 13 between strangers. It would help fight 14 warming by cutting down on fuel consumption as hitchhikers would be using existing fuels. It would also improve educational standards by delivering instant 15 in geography, history, politics and sociology.