单选题Almost Human? Scientists are racing to build the world's first thinking robot .This is not science fiction：some say they will have made it by the year 2020.Carol Packer repots． Machines that walk，speak and feel are no longer science fiction．Kismet is the name of an android(机器人)which scientists have built at the Massachusetts Institute of Technology(MIT)． Kismet is different from the tradition。al robot because it can show human emotions．Its eyes．ears and lips move to show when it feels happy．sad or bored．Kismet is one of the first of a new generation of androids—robots that 100k like human beings—which can imitate human feelings．Cog，another android invented by the MIT, imitates the action of a mother Howere, scientists admit that so far Cog has the mental ability of a two．year．old． The optimists(乐观主义者)say that by the year 2020 we will have created humanoids(机 器人)with brains similar to those of an adult human being．These robots will be designed to look like people to make them more attractive and easier to sell to the public．What kind of jobs will they do? In the future，robots like Robonaut ，a humanoid invented by NASA，will be doing dangerous jobs，like repairing space stations They will also be doing more and more of the household work for US．In Japan，scientists are designing androids that will entertain US by dancing and playing the piano． Some people worry about what the future holds：will robots become monsters(怪物)?Will people themselves become increasingly like robots? Experts predict that more and more people will be wearing micro-computers，connected to the Internet，in the future．People will have micro-chips in various parts of their body，which will connect them to a wide variety of gadgets (小装置)．Perhaps we should not exaggerate(夸大)the importance of technology，but one wonders whether , in years to come，we will still be falling in love，and whether we will still feel pain．Who knows?

单选题It is very late; {{U}}hence{{/U}} you must go to bed.

单选题The manager got angry just because his secretary was ten minutes late.

单选题 How to Dress Properly Being less than perfectly well-dressed in a business setting can result in a feeling of profound discomfort that may well require therapy to dispel. And the sad truth is that "clothing mismatches" on the job can ruin the day of the person who is wearing the inappropriate attire(着装), and the people with whom he or she comes in contact. Offices vary when it comes to dress codes. Some businesses have very high standards for their employees and set strict guidelines for office attire, while others maintain a more relaxed attitude. However, it is always important to remember that no matter what your company's attitude is regarding what you wear, you are working in a business environment and you should dress accordingly. Certain items may be more appropriate for evening wear than for a business meeting, just as shorts and a T-shirt are better suited for the beach than for an office environment, our attire should reflect both your environment and your position. A senior vice president has a different image to maintain than that of a secretary or sales assistant. Like it or not, you will be judged by your personal appearance. This is never more apparent than on "dress-down days", when what you wear can say more about you than any business suit ever could. In fact, people will pay more attention to what you wear on dress-down days than on "business professional" days. Thus, when dressing in "business casual" clothes, try to put some flair into your wardrobe choices, recognizing that the "real" definition of business casual is to dress just one notch(等级)down from what you would normally wear on business-professional attire days. Remember, there are boundaries between your career and your social life. You should dress one way for play and another way when you mean business. Always ask yourself where you ale going and how other people will be dressed when you get there. Is the final destination the opera, the beach, or the office? Dress accordingly and you will discover the truth in the axiom(公理)that clothes make the man and the woman. When in doubt, always err on the side of dressing slightly more conservatively than the situation demands.

单选题He was Udeceived/U by her soft words.

单选题 The Eye's Adaptation to Color As one works with color in a practical or experimental way, one is impressed by two apparently unrelated facts. Color as seen is a mobile changeable thing depending to a large extent on the relationship of the color to other colors seen simultaneously. It is not fixed in its relation to the direct stimulus which creates it. On the other hand, the properties of surfaces that give rise to color do not seem to change greatly under a wide variety of illumination colors, usually (but not always) looking much the same in artificial light as in daylight. Both of these effects seem to be due in large part to the mechanism of color adaptation mentioned earlier. When the eye is fixed on a colored area, there is an immediate readjustment of the sensitivity of the eye to color in and around the area viewed. This readjustment does not immediately affect the color seen but usually does affect the next area to which the gaze is shifted. The longer the time of viewing, the higher the intensity, and the larger the area, the greater the effect will be in terms of its persistence in the succeeding viewing situation. As indicated by the work of Wright and Schouten, it appears that, at least for a first approximation, full adaptation takes place over, a very brief time if the adapting source is moderately bright and the eye has been in relative darkness just previously. As the stimulus is allowed to act, however, the effect becomes more persistent in the sense that it takes the eye longer to regain its sensitivity to lower intensities. The next result is that, if the eye is so exposed and then the gaze is transferred to an area of lower intensities, the loss of sensitivity produced by the first area will still be present and appear as an "afterimage" superimposed on the second. The effect not only is present over the actual area causing the "local adaptation" but also spreads with decreasing strength to adjoining areas of the eye to produce "lateral adaptation". Also, because of the persistence of the effect if the eye is shifted around from one object to another, all of which are at similar brightness or have similar colors, the adaptation will tend to become uniform over the whole eye.

单选题3. Will Anyone Watch 3-D TV? Mark the calendar: 2010 might be the year that TV's final frontier gets broken. Announced in early September, the newest models in the offing (马上就来临的) for late 2010 from Sony and Panasonic are bringing 3-D HDTV (高消晰度电视) into the home. That is, if you're willing to wear the glasses. Yes, glasses. They're not quite the flimsy red-and-blue-cellophane (玻璃纸) getups that they used to be, but the Sony and Panasonic models still require you to wear a pair of shades to observe the effect. How can TV manufacturers convince you that seeing shows in 3-D is worth the annoyance of having to wear a pair of specs (眼镜)? The first way is by making the technology way better. After all. 3-D entertainment is nothing new. The early 1950s were flooded with 3-D movies, and the technology has made an occasional comeback ever since. Each time, though, it's done in by the same complaints: poor image quality and headaches and eyestrain from extended viewing. Early reviews of the new models from Sony and Panasonic suggest they've solved the problem. Both use glasses that contain tiny shutters (快门), opening and closing at 120 frames per second, in sync with (与……同步)the image on the screen to give the illusion of depth. It's a new approach that gives users a wider viewing angle, another weakness of older approaches. All this would be pointless if the entertainment industry weren't also taking a new look at 3-D, The recent spate (一阵) of 3-D movies on the big screen-G-Force, Monsters vs Aliens and My Bloody Valentine all had 3-D debuts this year-foreshadows (预示) a similar spurt on the small screen. Blu-ray discs, which have the storage capacity necessary for high-definition 3-D content, and their players are becoming more affordable, and Panasonic is working with movie studios to release 3-D editions of movies, timed to coincide with the first group of TVs. Broadcast networks are paying close attention too-ESPN broadcast the Sept. 12 USC vs. Ohio State college-football game in 3-D as a pilot test. and in Britain there are already stations dedicated to 3-D content. But still. The glasses! The headgear(盔)necessary to watch modem 3-D TVs remains bulky-and, well, ugly-but Luxottica, maker of Ray-Ban, is working on a solution tot that. The company plans to release 3-D glasses modeled after Ray-Ban's classic Wayfarer (徙步旅行者) shades. giring even the style-conscious enthusiast little reason to resist 3-D.

单选题She longed for a chance to speak to Tom in private.

单选题Nightingale played a great role in

单选题As he is going to work in Holland for two years, he will be parted from his two children. A. stayed B. separated C. far D. worked

单选题Many of their ideas are being incorporated into orthodox medical treatment. A. acceptable B. conservative C. western D. conventional

单选题The sisters can't tolerate each other. A. bear B. hate C. like D. criticize

单选题Powering a City? It"s a Breeze. The graceful wooden windmills that have broken up the flat Dutch landscape for centuries—a national symbol like wooden shoes and tulips—yielded long ago to ungainly metal-pole turbines. Now, windmills are breaking into a new frontier. Though still in its teething stages, the "urban turbine" is a high-tech windmill designed to generate energy from the rooftops of busy cities. Lighter, quieter, and often more efficient than rural counterparts, they take advantage of the extreme turbulence and rapid shifts in direction that characterize urban wind patterns. Prototypes have been successfully tested in several Dutch cities, and the city government in the Hague has recently agreed to begin a large-scale deployment in 2003. Current models cost US $8,000 to US $12,000 and can generate between 3,000 and 7,000 kilowatt hours of electricity per year. A typical Dutch household uses 3,500 kilowatt hours per year, while in the United States, this figure jumps to around 10,000 kilowatt hours. But so far, they are being designed more for public or commercial buildings than for private homes. The smallest of the current models weigh roughly 200 kilograms and can be installed on a roof in a few hours without using a crane. Germany, Finland and Denmark have also been experimenting with the technology, but the ever-practical Dutch are natural pioneers in urban wind power mainly because of the lack of space. The Netherlands, with 16 million people crowded into a country twice the size of Slovenia, is the most densely populated in Europe. Problems remain, however, for example, public safety concerns, and so strict standards should be applied to any potential manufacturer. Vibrations are the main problem in skyscraper-high turbine. People don"t know what it would be like to work there, in an office next to one of the big turbines. It might be too hectic. Meanwhile, projects are under way to use minimills to generate power for lifeboats, streetlights, and portable generators. "I think the thing about wind power is that you can use it in a whole range of situations," said Corin Millais, of the European Wind Energy Association. "It"s a very local technology, and you can use it right in your backyard, but I don"t think anybody wants a nuclear power plant in their backyard."

单选题The food is inadequate for ten people. A．demanded B．qualified C．insufficient D．required

单选题The governor gave a rather determined explanation to the public. A. unclear B. firm C. short D. vague

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}} How Do American Consumers Borrow ?{{/B}} Young consumers often have not established their credit ratings. Many do not have steady incomes. They might have difficulty borrowing money from an agency in business to make loans. Parents or relatives are usually their best source of loans. Of course, the parents or relatives would have to have money available and be willing to lend it. You might even get an interest-free loan. However, a parent or relative who lends should receive the same interest as any other lender. There are disadvantages in borrowing from parents or relatives. One is that they may not insist on you paying back the money by a certain time. As a result, you might let the loan drag on. This is especially true if you are not required to pay interest. This is not a way to develop good credit habits. For most consumers, the cheapest place to borrow is at a commercial bank. Banks are a good source of installment loan which may run for 12 months or up to 30. Most banks also make single-payment loans to consumers for short periods--30,60 ,or 90 days. The newest type of bank loan is one that a depositor can get simply by writing a check. It is usually called something like "ready credit" or "reserved checking." It works like this. A depositor is given a limited amount of credit, usually between ＄500 and ＄1,000. He or she may write checks up to the amount allowed. Once a check has been written, the amount of the check becomes a loan. Usually no charge is made for interest until the loan is made. A typical interest rate is 3 cents per ＄100 per day, or just under I percent a month. Suppose that you used ＄100 of your credit and repaid it in 30 days. The cost would be 90 cents. If you repaid it in 10 days, the cost would be only 30 cents. The advantage of borrowing from a bank is that banks generally charge lower rates than most other lenders. One reason is that banks have more strict credit requirements than most other lenders. A consumer must have a fairly good credit rating to get a bank loan.

单选题{{B}}第三篇{{/B}} {{B}} The Greatest Show on Earth{{/B}} The Olympic Games (奥林匹克运动会) are the greatest festival of sport in the world. Every four years, a hundred or more countries send their best sportsmen to compete (竞赛) for the highest honors in sport. As many as 6,000 people take part in over 20 sports. For the winners, there are gold medals(奖牌) and glory. But there is honor, too, for all who compete, win or lose. That is in spirit of the Olympics--to take part is what matters. The Olympic Games always start in a bright color and action. The teams of all the nations parade in the opening ceremony(仪式) and march round the track. The custom is for the Greek team to march in first. For it was in Greece that the Olympics began. The team of the country where the Games are being held--the host country--marches in last. The runner with the Olympic torch (火炬) then enters the stadium(体育场) and lights the flame. A sportsman from the host country takes the Olympic oath (誓言) on behalf of all the competitors(竞赛者). The judges and officials also take an oath. After the sportsmen march out of the stadium the host country puts on a wonderful display. The competitions begin the next day. There are usually more than twenty sports in the Games. The rule is that there must be at least fifteen. The main events are in track and field (田径), but it is a few days before these sports start. Each day the competitors take part in a different sport-- riding, shooting, swimming, and cross country running. Points are gained for each event. Medals are awarded (颁发) for the individual winners and for national teams. More and more women are taking part in the games. They first competed in 1900, in tennis and golf, which are no longer held in the Olympics. Women's swimming events were introduced in 1912. But it was not until 1928 that there were any track and field events for women. Now, they compete in all but half a dozen of the sports. In horse riding, shooting, and boat racing, they may compete in the same events as the men.

单选题The Exploding Lakes of Cameroon What comes to mind when you think of a lake? You probably imagine a pretty scene with blue water, birds, and fish. For the people in the northwestern Cameroon, however, the image is very different. For them, lakes may mean terrible disasters. In 1984, poisonous gases exploded out of Lake Monoun and came down into the nearby villages, killing thirty-seven people. Two years later, Lake Nyos erupted. A cloud of gases rolled down the hills and into the valleys and killed 1,700 people. Lake Nyos and Lake Monoun are crater (火山口) lakes. They were formed when water collected in the craters of old volcanoes. The volcanoes under Lake Nyos and Lake Monoun are not active anymore. However, poisonous gases from the center of the earth continue to flow up through cracks in the bottom of the lake. This is normal in a crater lake. In most crater lakes, these gases are released often because the water "turns over" regularly. That is, the water from the bottom of the lake rises and mixes with the water at the top, allowing the gases to escape slowly. However, in Lakes Nyos and Monoun, there is no regular turning over. No one knows the reason for this fact, but as a result, these lakes have more gases trapped at the bottom than other crater lakes. In fact, scientists who have studied Lakes Nyos and Monoun have found 16,000 times more gases. When a strong wind, cool weather, a storm, or a landslide (划破) causes the water to turn over suddenly, the gases escape in a violent explosion. In the past, no one knew when the gases might explode, so there was no way for the villagers to escape disaster. Now scientists from the United States, France, and Cameroon have found a way to reduce the gas pressure at the bottom of Lake Nyos. They stood a 672-foot plastic pipe in the middle of the lake, with one end of the pipe near the bottom and the other end in the air. Near the top of the pipe, the team put several holes that could be opened or closed by a computer. Now, when the gas pressure gets too high, the holes are opened and some of the gas-filled water shoots up through the pipe into the air like a fountain. With less pressure, a disastrous explosion is much less likely. However, the scientists are not sure that one pipe will be enough to prevent explosions. They hope to put in others soon and they plan to install a similar pipe and a computer system at Lake Monoun as well. To protect people nearby until all of the pipes are in place, the scientists have installed early warning systems at both lakes. If the gas pressure rises to a dangerous level, computers will set off loud sirens (警报) and bright lights to warn the people in the villages. That way, they will have time to escape from the dangerous gases.

单选题{{B}}第二篇{{/B}} As in the field of space travel, so in undersea exploration new technologies continue to appear. They share a number of similarities with each other — as well as some important differences. Manned submersibles (潜水器), like spaceships, must maintain living conditions in an unnatural environment. But while a spaceship must simply be sealed against the vacuum of space, a submersible must be able to bear extreme pressure if it is not to break up in deep water. In exploring space, unmanned vehicles were employed before astronauts. In undersea exploration, on the other hand, men paved the way, only recently have unmanned remote-operated vehicles (ROVs) been put to use. One reason for this is that communicating with vehicles in orbit is much easier than talking to these underwater. A vacuum am ideal medium for radio communications, but underwater communications are limited to much slower sound waves. Thus, most undersea vehicles—particularly ROVs— operate at the end of long ropes. For a similar reason, knowing where you are undersea is much more difficult than in space. A spaceship's position can be located by following its radio signal, or by using telescopes and radar. For an undersea vehicle, however, a special network of sonar (声纳) must be laid out in advance on the ocean' floor in the area of a dive to locate the vehicle's position. Though undersea exploration is more challenging than outer space in a number of respects, it has a distinct advantage: Going to the ocean depths doesn't require the power necessary to escape Earth's gravity. Thus, it remains far less expensive.