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Believe it or not, optical illusion can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. But stripes, called chevrons (人字形), painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.Now the American Automobile Association Foundation for Traffic Safety in Washington D.C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards are the greatest-curves, exit slopes, traffic circles, and bridges.Some studies suggest that straight, horizontal bars painted a cross roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.1. The passage mainly discusses ________.2. On roads painted with chevrons, drivers tend to feel that ________.3. The advantage of chevrons over straight, horizontal bars is that the former ________.4. The American Automobile Association Foundation for Traffic Safety plans to ________.5. What does the author say about straight, horizontal bars painted a cross roads?

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Archaeology has long been an accepted tool for studying prehistoric cultures. Relatively recently the same techniques have been systematically applied to studies of the more immediate past. This has been called historical archaeology, a term that is used in the United States to refer to any archaeological investigation into North American sites that postdate the arrival of Europeans.Back in the 1930’s and 1940’s, when building restoration was popular, historical archaeology was primarily a tool of architectural reconstruction. The role of archaeologists was to find the foundations of historic buildings and then take a back seat to architects.The mania for reconstruction had largely subsided by the 1950’s and 1960’s. Most people entering historical archaeology during this period came out of university anthropology departments, where they had studied prehistoric cultures. They were, by training, social scientists, not historians, and their work tended to reflect this bias. The questions they framed and the techniques they used were designed to help them understand, as scientists, how people behaved. But because they were treading on historical ground for which there was often extensive written documentation, and because their own knowledge of these periods was usually limited, their contributions to American history remained circumscribed. Their reports, highly technical and sometimes poorly written, went unread.More recently, professional archaeologists have taken over. These researchers have sought to demonstrate that their work can be a valuable tool not only of science but also of history, providing fresh insights into the daily lives of ordinary people whose existences might not otherwise be so well documented. This newer emphasis on archaeology as social history has shown great promise, and indeed work done in this area has lead to a reinterpretation of the United States past.In Kingston, New York, for example, evidence has been uncovered that indicates that English goods were being smuggled into that city at a time when the Dutch supposedly controlled trading in the area. And in Sacramento an excavation at the site of a fashionable nineteenth-century hotel revealed that garbage had been stashed in the building’s basement despite sanitation laws to the contrary.1. What does the passage mainly discuss?2. What was popular in the 1930’s and 1940’s?3. According to the first paragraph, what is a relatively new focus in archaeology?4. According to the passage, when had historical archaeologists been trained as anthropologists?5. In the third paragraph, the author implies that the techniques of history and social science are ________.

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How we look and how we appear to others probably worries us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion. Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment.Changing fashion, of course, does not apply just to dress. A barber today does not cut a boy’s hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did. The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull.What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion. Take hats, for example. In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside. In recent times, the late President Kennedy caused a depression in the American hat industry by not wearing hats: more American men followed his example. There is also a cyclical pattern in fashion. In the l920s in Europe and America, short skirts became fashionable. After World War Two, they dropped to ankle length. Then they got shorter and shorter until the miniskirt was in fashion. After a few more years, skirts became longer again. Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion. The popularity of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashions of the top fashion houses.At the same time, appearance is still important in certain circumstances and then we must choose our clothes carefully. It would be foolish to go to an interview for a job in a law firm wearing jeans and a sweater; and it would be discourteous to visit some distinguished scholar looking as if we were going to the beach or a nightclub. However, you need never feel depressed if you don’t look like the latest fashion photo. Look around you and you’ll see that no one else does either!1. The author thinks that people are ________.2. Fashion magazines and TV advertisements seem to link fashion to ________.3. Causes of fashions are ________.4. Present-day society is much freer and easier because it emphasizes ________.5. What is the main idea of the last paragraph?

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A person’s home is as much a reflection of his personality as the clothes he wears, the food he eats and the friends with whom he spends his time. Depending on personality, most have in mind a(n) “___1___ home”. But in general, and especially for the student or new wage earners, there are practical ___2___, of cash and location on achieving that idea. Cash ___3___, in fact, often means that the only way of ___4___ when you leave school is to stay at home for a while until things ___5___ financially. There are obvious ___6___ of living at home—personal laundry is usually ___7___ done along with the family wash; meals are provided and there will be a well-established circle of friends to ___8___. And there is ___9___ responsibility for paying bills, rates, etc.On the other hand, ___10___ depends on how a family gets on. Do your parents like your friends? You may love your family ___11___ do you like them? Are you prepared to be ___12___ when your parents ask where you are going in the evening and what time you expect to be back? If you find that you cannot manage a (an) ___13___ and that you finally have the money to leave, how do you ___14___ somewhere else to live? If you plan to stay in your home area, the possibilities are ___15___ well-known to you already. Friends and the local paper are always ___16___. If you are going to work in a ___17___ area, again there are the papers—and the accommodation agencies, ___18___ these should be approached with ___19___. Agencies are allowed to charge a fee, usually the ___20___ of the first week’s rent, if you take accommodation they have found for you.

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