填空题 Natural Gas 1. Natural gas is produced from reservoirs deep beneath the earth's surface. It is a fossil fuel, meaning that it is derived from organic material buried in the earth millions of years ago. The main component of natural gas is methane. 2. The popularity and use of clean natural gas has increased dramatically over the past 50 years as pipeline infrastructure has been installed to deliver it conveniently and economically to millions of residential, commercial and industrial customers worldwide. Today, natural gas services available in all 50 states in the U.S., and is the leading energy choice for fueling American homes and industries. More than 65 million American homes use natural gas. In fact, natural gas is the most economical source for home energy needs, costing one-third as much as electricity. In addition to heating homes, much of the gas used in the United States is used as a raw material to manufacture a wide variety of products, from paint to fibers for clothing, to plastics for healthcare, computing and furnishings. Natural gas is also used in a significant number of new electricity-generating power plants. 3. Natural gas is one of the safest and cleanest fuels available. It emits less pollution than other fossil fuel sources. When natural gas is burned, it produces mostly carbon dioxide and water vapour—the same substances emitted when humans exhale. Compared with some other fossil fuels, natural gas emits the least amount of carbon dioxide into the air when combusted, making natural gas the cleanest burning fossil fuel of all. 4. The United States consumes about one-third of the world's natural gas output, making it the largest gas-consuming region in the world. The U.S. Department of Energy Information Administration forecasts that natural gas demand will grow by more than 50 percent by 2025. 5. There are huge reserves of natural gas beneath the earth's surface. The largest reserves of natural gas can be found in Russia, West and North Africa and the Middle East. LNG has been produced domestically and imported in the United States for more than four decades. Today, the leading imports of LNG are Japan, Korea, France and Spain.

填空题A. the nucleus of a cellB. cloned human beingsC. a human being in two yearsD. a law to ban human cloningE. a report on human cloningF. heavy media coverage

填空题 A Star Is Born 1. The VLT (Very Large Telescope) is the world's largest telescope (望远镜) and is taking astronomers (天文学家) further back to the Big Bang than they ever thought possible. Located 2,600 metres up to the Chilean Andes, it has four huge mirrors, each about the size of a London bus. The VLT is so powerful it can spot a burning match 10,000 kilometres away. 2. This astonishing power will allow astronomers to see events in space from the birth of stars to the collision (碰撞) of galaxies (星系) on the edge of the cosmos (宇宙). The VLT is giving astronomers their best-ever view of the cosmos. The power of the VLT to see the smallest detail at the furthest distances makes its designers amazed. 3. Take the case of Eta Carinae, one of the most explosive stars in the universe. This star produces ultraviolet laser rays (紫外线) and it will destroy itself in a few million years' time. It is five times brighter than the sun and when it explodes it is going to be a sight worth waiting for! 4. But it is at distances of millions, even billions, of light years that the VLT really shows its power. The VLT can detect light that set out on its journey before the earth even existed. This gives astronomers their first- ever detailed views of events that took place in the earliest days of the cosmos. 5. In other words, the VLT is a kind of a time machine. It takes astronomers back to a time when complete galaxies crashed into each other. The effects of these past collisions can now be seen by scientists, and astronomers believe the telescope will reveal more about these exciting events in the years to come. One day, we might be able to say we have traveled back to the beginning of time, and we will have a much clearer picture of how our planet was born. A. Enents that Took Place before the Earth Existed B. Power of the Telescope C. Details of Eta Carinae D. Invention of a Time Machine E. Biggest Telescope

填空题Rainmaking 1. The idea of rainmaking is almost as old as man, but it was not until 1946 that man succeeded in making rain. In ancient times, rainmakers had claimed to bring rain by many methods: dancing singing, killing animals (including humans). 2. For a long time, men have understood where rain comes from. Water from the surface of oceans and lakes becomes part of the air, where it forms clouds from which rain falls. But exactly what starts the formation of raindrops was not known until quite recently. A man named John Aitken proved that drops of water gather around tiny bits of dust or other matter. The centers of the drops are so small that the human eye cannot see them. Without such centers, it seems raindrops do not form. 3. During World War Ⅱ, Dr. Irving Langmir, and his assistant Schaefer, were hired by the General Electric Company to study how and why ice forms on the wings of airplanes. They went to a mountain in New Hampshire, where snowstorms are common and cold winds blow. They were surprised to find that often the temperature of the clouds surrounding them was far below the freezing point, and yet ice did not form in the clouds. 4. After the War, Schaefer experimented with a machine that created cold, moist air similar to the air found in clouds. To imitate the moist air of a cloud. Schaefer would breathe into the machine. Then he would drop into the freezer a bit of powder, sugar, or some other substance. For weeks and months he tried everything he could imagine. Nothing happened. No crystals of ice were formed. None of the substances would serve as the center of a snow crystal or raindrops. 5. One July morning, Schaefer was dropping in bits of various substances and watching the unsuccessful results. Finally, a friend suggested that they go to eat lunch and Schaefer went with him. As usual, he left the cover of the freezer up, since cold air sinks and would not escape from the box. 6. Returning from lunch, Schaefer found that the temperature of the freezer had risen to a point higher than that required for ice crystals to remain solid. There were two choices now. He could close the cover and wait for the freezer itself to lower the air temperature, or he could make the process occur faster by adding dry ice a gas in solid form that is very, very cold. He chose the latter plan. As he dropped the steaming white dry ice into the freezer, he happened to breathe out a large amount of air. And there, before his eyes, it happened! He had made ice crystals, not by adding centers to the moisture, but by cooling the breath so much that the liquid had to form crystals! Then he began to blow his breath into the freezer and drop large pieces of dry ice through it to create crystals which became a tiny snowstorm falling slowly to the floor of his laboratory. 7. After planning carefully, Schaefer made an experiment by dropping dry ice from his plane to the clouds below him. As was expected, snow formed and fell from the bottom of the cloud. Schaefer succeeded. He made history.

填空题Optimists Really Do Live Longer, Say Scientists 1. For the philosopher Arthur Schopenhauer optimism was fundamentally wrong, banal and corrupting, while the father of psychoanalysis Sigmund Freund simply declared it to be neurotic. 2. Experience shows that looking on the bright side of life does have advantages and recent scientific evidence points to the positive mindset as being beneficial to health. In other words optimists live longer. 3. That was the conclusion reached by experts at the Mayo Clinic in the U.S. State of Minnesota who evaluated answers given by people to a set of questions in the 1960s. Of the 729 candidates, 200 had died and according to scientists, there were a disproportionate number of pessimists among them. 4. Ten points more on the pessimism scale—that was the difference between "slightly pessimistic" and "averagely pessimistic"—were enough to boost a person"s chances of dying by 19 percent, according to the study by prominent psychologist Martin Seligman of the University of Pennsylvania. 5. The study does not say why pessimists die but an older survey taken among children in San Francisco and Los Angeles makes it clear that personal attitude towards the world is a key factor in the longevity equation. 6. The latest evidence to support the theory that optimists tend to cope better with illness of all kinds has been provided by Professor Ralf Schwarzer of Berlin"s Free University who questioned 600 heart and lung patients. His conclusion: Optimists recover more swiftly from operations than their pessimistic counterparts; tend to be happier after treatment and return to work more swiftly. 7. There have been suggestions that optimists do not stay healthier but rather turn into optimists later because they enjoy good health. Numerous surveys have taken into account a person"s state of health at the outset and the effect remains the same. 8. Studies have shown that optimists do not blind themselves to reality either. They thus interpret it in a positive way. "Sublimating and denying things tend to alter reality but illusions are a way of seeing reality in the best light." said Californian psychology professor Shelley Taylor. 9. German science journal "Bild der Wissenschaft", which carries a major article on the topic in its current March issue, commented on "the fight attitude" to having a tumor. 10. It seems psychotherapy can go some way towards extending the life span and life quality of a sick person although a complete recovery using psychological technique alone is unlikely. 11. Doctors like, however, to point to the example of U.S. cycling professional Lance Armstrong, who was seriously ill with cancer, but whose unshakable optimism helped him to take the top trophy twice at cycling"s premier Tour de France. 12. The magazine also quoted a study by Sheldon Cohens of the Carnegie-Mellon-University in Pittsburgh: 420 volunteers were deliberately infected with strains of various common cold viruses. A day later checks were carried out to see who had caught a cold. 13. The results showed that in the case of people who had satisfactory, long-term relations with friend neighbors or colleagues, the virus was less likely to trigger a cold. Of people with three or fewer firm relationships 62 percent became ill compared with only 35 percent of those who had six or more close human links.

填空题Hurricanes (飓风) Did you know that before 1950, hurricanes had no names? They were simply given numbers. The first names were simply Alpha, Bravo, Charlie, etc. But in 1953, female names were given because of the unpredictability (不可预知) factor of the storms. In 1979, realizing the sexist (性别歧视的) nature of such names, the lists were expanded to include both men and women. Hurricanes and typhoons (台风) are the same things. If they form in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind". And if they are Pacific storms, they are called typhoons from the Chinese taifun, meaning "great wind". To be classified as a hurricane, the storm must have maximum winds of at least 75 mph. These storms are big, many hundreds of miles in diameter. Hurricanes get their power from water vapor as it gets out its stored up energy. All water vapor gives out heat as it condenses (凝结) from a gaseous state to a liquid state over fixed points on the equator (赤道). To make a hurricane, you must have extremely wet, warm all the kind of air that can only be found in tropical regions. Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hour. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year. The problem is that we don"t know how to make such great energy work for us. Predicting the path of a hurricane is one of the most difficult tasks for forecasters. It moves at a typical speed of 15 mph. But not always. Some storms may race along at twice this speed, then suddenly stop and remain in the same location in the ocean for several days. It can be maddening (发疯的) if you live in a coastal area that may be hit. The biggest advance in early detection is continuous watch from weather satellites. With these, we can see the storms form and track them fully, from birth to death. While they can still kill people and destroy property, hurricanes will never surprise any nation again.

填空题A Strong Reactions B Anxiety about the Future of Cloning C The Right to Choose D What is Cloning? E Arguments in Favor of Cloning F A Common Sight

填空题Flying into History When you turn on the television or read a magazine, celebrities (名人) are everywhere. Although fame and the media play such major roles in our lives today, it has not always been that way. 1 Many historians agree that Charles Lindbergh was one of the first major celebrities, or superstars. Lindbergh was born in Detroit, Michigan, in 1902, but he grew up in Little Falls, Minnesota. As a child, he was very interested in how things worked, so when he reached college, he pursued a degree in engineering. At the age of 20, however, the allure(诱惑) of flying captured Lindbergh"s imagination. 2 Soon alter, Lindbergh bought his own plane and traveled across the nation performing aerial stunts(空中特技). In 1924, Lindbergh became more serious about flying. He joined the United States military and graduated first in his pilot class. 3 During the same time, a wealthy hotel owner named Raymond Orteig was offering a generous award to the first pilot who could fly nonstop from New York City to Paris, France. The Orteig Prize was worth $ 25,000—a large amount even by today"s standards. Lindbergh knew he had the skills to complete the flight, but not just any plane was capable of flying that far for that long. 4 On May 20, 1927, Charles Lindbergh took off from Roosevelt Field in New York City and arrived the next day at an airstrip(简易机场) outside Paris. Named in honor of the sponsor, The Spirit of St. Louis carried Lindbergh across the Atlantic Ocean and into the record books. He became a national hero and a huge celebrity. When he returned to the United States, Lindbergh rode in a ticker-tape (热烈的) parade held to celebrate his accomplishment. 5 A very popular dance was even named for Charles Lindbergh—the Lindy Hop. Today, The Spirit of St. Louis is kept at the Smithsonian Institute"s National Air and Space Museum in Washington, D.C. A. Eighty years ago, radio and movies were just beginning to have that kind of effect on Americans. B. Working with an aviation company from San Diego, California, and with financial help from the city of St. Louis, Lindbergh got a customized (定制的) airplane that could make the journey. C. He also received a Medal of Honor, the highest United States military decoration. D. He quit school and moved to Nebraska where he learned to be a pilot. E. His childhood was not full of fond memories. F. Lindbergh used this additional training to get a job as an airmail pilot, flying out of St. Louis, Missouri.

填空题Women's rights moment started in the ______

填空题阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 {{B}} Every Dog Has Its Say{{/B}} Kimiko Fukuda, a Japanese girl, always wondered What her dog was trying to say. Whenever she put on makeup, it would pull at her sleeve. {{U}}(46) {{/U}} When the dog barks, she glances at a small electronic gadget (装置). The following "human" translation appears on its screen: "Please take me with you." "I realized that's how he was feeling," said Fukuda. The gadget is called Bowlingual, and it translates dog barks into feelings. People laughed when the Japanese toymaker Takara Company made the world's first dog-human translation machine in 2002. But 300,000 Japanese dog owners bought it. {{U}}(47) {{/U}} "Nobody else had thought about it," said Masahiko Kajita, who works for Takara. "We spend so much time training dogs to understand our orders; what would it be like if we could understand dogs?" Bowtingual has two parts. {{U}}(48) {{/U}} The translation is done in the gadget using a database (资料库) containing every kind of bark. Based on animal behaviour research, these noises are divided into six categories: happiness, sadness, frustration, anger, declaration and desire. {{U}}(49) {{/U}} In this way, the database scientifically matches a bark to an emotion, which is then translated into one of 200 phrases. When a visitor went to Fukuda's house recently, the dog barked a loud "bow wow". This is translated as "Don't come this way". {{U}}(50) {{/U}} The product will be available in US pet stores this summer for about US$120. It can store up to 100 barks, even recording the dog's emotions when the owner is away.A A wireless microphone is attached to the dog's collar, which sends information to the gadget held by the owner.B Nobody really knows how a dog feels.C It was followed by "I’m stronger than you" as the dog growled (嗥叫) and sniffed (嗅) at the visitor.D More customers are expected when the English version is launched this summer.E Now, the Japanese girl thinks she knows.F Each one of these emotions is then linked to a phrase like "Let's play", "Look at me", or "Spend more time with me".

填空题The Value of Motherhood In shopping malls, the assistants try to push you into buying "a gift to thank her for her unselfish love". When you log onto website, a small pop-up invites you to book a bouquet for her. Commercial warmth and gratitude are the atmosphere being spread around for this special Sunday in May. (46) The popularity of Mother's Day around the world suggests that Jarvis got all she wanted. In fact, she got more--enough to make her horrified. (47) They buy, among other things, 132 million cards. Mother's Day is the No. 1 holiday for flower purchases. Then there are the various commodities, ranging from jewelry and clothes to cosmetics and washing powder, that take advantage of the promotion opportunities. Because of this, Jarvis spent the last 40 years of her life trying to stop Mother's Day. One protest against the commercialization Mother's Day even got her arrested—for disturbing the peace, interestingly. (48) As Ralph Fevre, a reporter at the UK newspaper "The Guardian", observes, traditionally "motherhood is something that we do because we think it's right." But in the logic of commercialism, people need something in exchange for their time and energy. A career serves this purpose better. (49) So they work hard and play hard. Becoming a mother, however, inevitably handicaps career anticipation. (50) According to "The Guardian" , there are twice as many child-free young women as there were a generation ago. Or, they put off the responsibility of parenting until later in their lives. So, Fevre writes that the meaning of celebrating Mother's Day needs to be updated: "It is to persuade people that parenting is a good idea and to honor people for their attempt to be good people. " A. Commercial warmth and gratitude are the atmosphere being spread as early as 1905, by Anna Jarvis, as a way of recognizing the real value of motherhood. B. But what's more, commercialism changes young people's attitude towards motherhood. C. Obviously, the best girl will be a phone call or a visit. D. According to a research by the US card company Hallmark, 96 percent of American consumers celebrate the holiday. E. As a result, motherhood has suffered a huge drop in status since the 1950s. F. In addition, women are being encouraged to pursue any career they desire.

填空题Why do People Shrink? Did you ever see the movie "Honey", I shrunk the kids? It's about a wacky (乖僻的) dad (who's also a scientist) who accidentally (偶然的) shrinks his kids with his homemade miniaturizing (使小型化) invention. Oops! The kids spend the rest of the movie as tiny people who are barely visible while trying to get back to their normal size. (46) It takes place over years and may add up to only one inch or so off of their adult height (maybe a little more, maybe less), and this kind of shrinking can't be magically reversed, although there are things that can be done to stop it or slow it down. But why does shrinking happen at all? (47) As people get older, they generally lose some muscle and fat from their bodies as part of the natural aging process. Gravity (the force that keeps your feet on the ground) take hold, and the bones in the spine, called vertebrae (椎骨), may break down or degenerate, and start to collapse into one another. (48) But perhaps the most common reason why some older people shrink is because of osteoporosis (骨质疏松症). Osteoporosis occurs when too much spongy (海绵) bone tissue (which is found inside of most bones) is broken down and not enough new bone material is made. (49) Bones become smaller and weaker and can easily break if someone with osteoporosis is injured. Older people—especially women, who generally have smaller and lighter bones to begin with—are more likely to develop osteoporosis. As years go by, a person with osteoporosis shrinks a little bit. Did you know that every day you do a shrinking act? You aren't as tall at the end of the day as you are at the beginning. (50) Don't worry, though. Once you get a good night's rest, your body recovers, and the next morning, you're standing tall again. A. They end up pressing closer together, which makes a person lose a little height and become shorter. B. That's because as the day goes on, water in the disks of the spine gets compressed (squeezed) due to gravity, making you just a tiny bit shorter. C. Over time, bone is said to be lost because it's not being replaced. D. Luckily, there are things that people can do to prevent shrinking. E. For older people, shrinking isn't that dramatic or sudden at all. F. There are a few reasons.

填空题Acts of Congress gave women the rights of ______

填空题 A. electromagnetic energy B. electromagnetic energy travels through space C. came from the sun D. when a change in the nucleus of an atom takes place E. when the sunrays are fierce F. chemical energy is generated

填空题Looking to the Future When a magazine for high-school students asked its readers what life would be like in twenty years,they said: Machines would be run by solar power. Buildings would rotate so they could follow the sun to take maximum advantage of its light and heat. Walls would "radiate light" and "change color with the push of a button. "Food would be replaced by pills. School would be taught "by electrical impulse while we sleep. "Cars would have radar. Does this sound like the year 2000? Actually, (46) and the question was, "what will life be like in 1978?" The future is much too important to simply guess about, the way the high school students did, so experts are regularly asked to predict accurately. By carefully studying the present skilled businessmen, scientists, and politicians are supposedly able to figure out in advance what will happen. But can they? One expert on cities wrote. (47) , but would have space for farms and fields. People would travel to work in "airbuses", large all-weather helicopters carrying up to 200 passengers. When a person left the airbus station he could drive a coin-opera-ted car equipped with radar. The radar equipment of cars would make traffic accidents "almost unheard of". Does that sound familiar? If the expert had been accurate it would, because he was writing in 1957. His subject was "The city of 1982. " If the professionals sometimes sound like high-school students, it's probably because (48) . But economic forecasting, or predicting what the economy will do, has been around for a long time. It should be accurate, and generally it is. But there have been some big mistakes in this field, too. In early 1929, most forecasters saw an excellent future for the stock market. In October of that year, (49) , ruining thousands of investors who had put their faith in financial foreseers. One forecaster knew that predictions about the future would always be subject to significant errors. In 1957, H. J. Rand of the Rand Corporation was asked about the year 2000, "Only one thing is certain, "he answered. "Children born today (50) . "A. the stock market had its worst losses everB. will have reached the age of 43C. the article was written in 1958D. Cities of the future would not be crowdedE. the prediction of the future is generally accurateF. future study is still a new field

填空题 下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原位置，以恢复文章原貌 Stonehenge Stonehenge (英格兰南部的巨石阵), the mysterious ring of ancient monoliths (独块石) from the dawn of Britain's proud civilization, could be the work of a central European immigrant, archaeologists said not long ago in a shock statement(令人震惊的声明). An early Bronze(青铜)Age(青铜时代) archer(射手), whose grave was discovered near the stone circle last year may have helped build the monument. {{U}}(46) {{/U}} Or he might have been brought up in a region neighboring Switzerland (瑞士) , such as southern Germany or western Austria. The archer "would have been a very important person in the Stonehenge area. " said Andrew Fitzpatrick, Wessex Archaeology's project manager. "It is fascinating to think that someone from abroad could have played an important part in the construction of Britain's most famous archaeological site". The 4000-year-old man was identified as an archer because of the flint(遂石) arrowheads(箭头) found by his body, along with other artifacts(史前古器物)belonging to the beaker Culture ( 青铜时代宽口陶器人文化) in the Alpsa (阿尔卑斯上) during the Bronze age. {{U}}(47) {{/U}} Though it could be coincidence that the man lived close to Stonehenge at about the time the great stones were put in place, archaeologists suspect that he was involved in constructing the monument. The archer, dubbed(被称为)"The King of Stonehenge" by the British press, lived around 2300 BC, about the time the great stone circle was formed in Amesbury, 120 kilometers southwest of London. The splendid artifacts found in his grave indicated he was a man of wealth, leading archaeologists to speculate he was an important dignitary(高贵人物) involved in the monument's creation. Stonehenge was built about the time the rich Breaker Culture came to Britain. {{U}}(48) {{/U}} {{U}} (49) {{/U}} He was strongly built but suffered an accident a few years before his death that severed(截断、切断) his left kneecap. Truman said the cause of death was not known, but it could have been a bone infection caused by his leg injury. Archaeologists also found the grave of a younger man, aged 20 to 25, nearby. {{U}}(50) {{/U}} This indicated they were related and were possibly father and son. Tests on the younger man's tooth enamel(珐琅) showed that he grew up in Britain. The archaeologists thus speculated the archer lived in Britain for many years and had a family, and was not just passing through. A. And tests on the chemical components of his tooth enamel showed he grew up in the region that is now known as Switzerland. B. He and the archer shared an unusual bone structure in their feet. C. Stonehenge will remain mysterious for many centuries to come. D. The artifacts found in his rich grave, discovered about 5 kilometers from Stonehenge, and indicated he was obviously a very prominent man. E. The archer was between 35 and 45 years old when he died. F. And people of that time would have been able to communicate in early Celtic tongue.

填空题They were about five miles from their destination when the music on the radio was interrupted by a news announcement: "The Cheshire police have issued a serious warning after a man escaped from Colford Mental Hospital earlier this evening. ______ He is described as large, very strong and extremely dangerous. People in the Cheshire area are warned to keep their doors and windows locked, and to call the police immediately if they see anyone acting strangely." Marie shivered. "A crazy killer. And he's out there somewhere. That's scary."A. At last! Someone had come!B. He quickly disappeared into the blackness.C. The man, John Downey, is a murderer who killed six people before he was captured two years ago.D. This car is losing power for some reason—it must be that old problem with the carburetor (汽化器).E. Marie quickly locked the doors and settled down under the blanket in the back for a long wait.F. As they drove, they listened to the local radio station, which was playing classical musi

填空题A in the development of air transportation B the earliest passenger flights were successfully operated C to make travel easy and pleasant for the passengers D to provide different services E the shortage of qualified pilots F traveling by air was very cheap

填空题下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。 Virtual Driver Driving involves sharp eyes and keen ears, analyzing with a brain, and coordination between hands, feet and brain. A man has sharp eyes and keen ears, analyzes through his brain, and maintains coordination between his hands and brains. He can control a fast-moving car with different parts of his body. {{U}}(46) {{/U}} . Apparently there isn't anyone in the driver's cab, but there is in fact a virtual driver. This virtual driver has eyes, brains, hands and feet too. The minicameras on each side of the car are its eyes and are responsible for observing the road conditions ahead of it as well as the traffic to its left and right. If you open the boot, you can see the most important part of the automatic driving system: a buit-in computer. {{U}}(47) {{/U}} . The brain is responsible for calculating the speeds objects surrounding the car are moving at, analyzing their position on the road, choosing the right path, and giving orders to the wheel and the control system. In comparison with the human brain, the virtual driver's best advantage is that it reacts quickly. {{U}}(48) {{/U}}. However, it takes the world's best racecar driver at least one second to react, and this doesn't include the time he needs to take action. With its rapid reaction and accurate control, the virtual driver can reduce the accident rate on expressways considerably. In this case, is it possible for us to let it have the wheel at any time and in any place? {{U}}(49) {{/U}}. With its limited ability to recognize things, the car can now only travel on expressways. The intelligent car determines its direction by the clear lines that mark the lanes clearly and recognizes vehicles according to their regular shapes. {{U}}(50) {{/U}}. This being the case, people still have high hopes about driverless cars, and think highly intelligent cars are what the cars of the future should be like. A. Experts say that we cannot do that just yet. B. In the near future, intelligent cars will be put into commercial operation. C. This is the brain of the car. D. But how does an intelligent car control itself? E. It completes the processing of the images sent by the cameras within 100 milliseconds. F. However, it cannot recognize moving people and bicycles on ordinary roads that have no clear markings on them.

填空题阅读下面的短文，文章中有5处空白，文章后有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 How to Jump Queue Fury If you find yourself waiting in a long queue at an airport or bus terminus this holiday, will you try to analyze what it is about queuing that makes you angry? Or will you just get angry with the nearest official? Professor Richard Larson, an electrical engineer at the Massachusetts Institute of Technology, hates queuing but rather than tear his hair out, he decided to study the subject. {{U}}(46) {{/U}}. He cites an experiment at Houston airport where passengers had to walk for one minute from the plane to the baggage reclaim and then wait a further seven minutes to collect their luggage. Complaints were frequent, especially from those who had spent seven minutes watching passengers with just hand baggage get out immediately. The airport authorities decided to lengthen the walk from the aircraft, so that instead of a oneminute fast walk, the passengers spent six minutes walking{{U}} (47) {{/U}}.The extra walk extended the delay by five minutes for those carrying only hand baggage, but passenger complaints dropped almost to zero. The reason? Larson suggests that it all has to do with what he calls "social justice". If people see others taking a short cut, they will find the wait unbearable.48{{U}} (48) {{/U}}. Another aspect Larson studied was the observation that people get more fed up if they are not told what is going on.{{U}} (49) {{/U}}. But even knowing how long we have to wait isn't the whole answer. We must also believe that everything is being clone to minimize our delay. Larson cites the example of two neighboring American banks. One was highly computerized and served a customer, on average, every 30 seconds.{{U}} (50) {{/U}}. But because the tellers at the second bank looked extremely busy, customers believed the service was {aster and many transferred their accounts to the slower bank. Ultimately, the latter had to introduce timewasting ways of appearing more dynamic. A．So in the case of the airport, it was preferable to delay everyone. B．The other bank was less automated and took twice as long. C．When they finally arrived at the baggage reclaim, the delay was then only two minutes. D．His first finding, which backs up earlier work at the US National Science Foundation, was that the degree of annoyance was not directly related to the time. E．It's unbearable for the airport to delay everyone. F．Passengers told that there will be a halfhour delay are less unhappy than those left waiting even twenty minutes without an explanation.