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Doctors believe that secondhand smoke may cause lung cancer in people who do not smoke. Nonsmokers often breathe in the smoke from other people’s cigarettes. This is secondhand smoke. The U.S. Environmental Protection Agency reports that about fifty-three thousand people die in America each year as a result of exposure to secondhand smoke.The smoke that comes from a lit cigarette contains many different poisonous chemicals. In the past, scientists did not think these chemicals harm a nonsmoker’s health. Recently, though, scientists expressed their opinion after they studied a large group of nonsmokers. They discovered that even nonsmokers had unhealthy amounts of these toxic chemicals in their bodies. As a matter of fact, almost all of us breathe tobacco smoke at times, whether we realize it or not. For example, we cannot avoid secondhand smoke in restaurants, hotels, and other public places. Even though many public places have nonsmoking areas, smoke flows in from the areas where smoking is permitted.It is even harder for children to avoid secondhand smoke. In America, nine million children under the age of five live in homes with at least one smoker. Research shows that these children are sick more often than the children who live in homes where no one smokes. The damaging effects of secondhand smoke on children also continue as they grow up. The children of smokers are more than twice as likely to develop lung cancer when they are adults as the children of nonsmokers. The risk is even higher for the children who live in homes where both parents smoke.1. It can be inferred that about fifty-three thousand people die in America .2. Non-smokers get harmed by smokers .3. Which of the following is NOT true?4. Which of the following is NOT listed as a negative effect imposed by secondhand smoking on children?5. Which group of children suffer from secondhand smoking to the greater extent?

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In 1957, a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is sometimes called “flu” or a “bad cold”. He took samples from the throats of patients and in his hospital he was able to find the virus of this influenza.There are three main types of the influenza virus. The most important of these are type A and B, each of them having several subgroups. With the instruments at the hospital the doctor recognized that the outbreak was due to a virus in group A but he did not know the subgroup. Then he reported the outbreak to the World Health Organization in Geneva. A.W.H.O. published the important news alongside reports of a similar outbreak in Hong Kong of China, where about 15%-20% of the population had become ill.As soon as the London doctors received the package of throat samples, doctors began the standard tests. They found that by reproducing itself with very high speed, the virus had grown more than a million times within two days. Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. A.None of them gave any protection. This, then, was something new, a new influenza virus, against which the people of the world had no help whatever.Having found the virus they were working with, the two doctors now dropped it into the noses of some specially selected animals, which get influenza as much as human beings do. In a short time the usual signs of the disease appeared. D.These experiments proved that the new virus was easy to catch, but that it was not a killer. Scientists, like the general public, call it simply Asian flu.The first discovery of the virus, however, was made in mainland China before the disease had appeared in other countries. Various reports showed that the influenza outbreak started in mainland China, probably in February of 1957. By the middle of March it had spread all over the mainland. D.The virus was found by Chinese doctors early in March. But at that time China was not a member of the World Health Organization and therefore did not report outbreaks of disease to it. Not until two months later, when travelers carried the virus into Hong Kong, China, from where it spread to Singapore, did the news of the outbreak reach the rest of the world. D.By this time it was well started on its way around the world.Thereafter, WHO’s Weekly Reports described the steady spread of this great virus outbreak, which within four months swept through every continent.1. The outbreak in Hong Kong, China, was due to a virus in          .2. Why did the two doctors drop the flu into the noses of animals?3. The Asian flu virus         .4. Where was the flu first found?5. When did the virus reach the rest of the world?

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When your parents advise you to “get an education” in order to raise your income, they tell you only half the truth. What they really mean is to get just enough education to provide manpower for your society, but not so much that you prove an embarrassment to your society.Get a high school diploma, at least. Without that, you will be occupationally dead, unless your name happens to be George Bernard Shaw or Thomas Alva Edison, and you can successfully drop out in grade school.Get a college degree, if possible. With a B.A., you are on the launching pad (发射台). But now you have to start to put on the brakes. If you go for a master’s degree, make sure it is an and only from a first-rate university. Beyond this, the famous law of diminishing returns(报酬递减率)begins to take effect.Do you know, for instance, that long-haul truck drivers earn more per year than full professors? Yes, the average 1977 salary for those truckers was $24, 000, while the full professors managed to average just $23, 030.A Ph. D. D.is the highest degree you can get, but except in a few specialized fields such as physics or chemistry, where the degree can quickly be turned to industrial or commercial purposes, you are facing a dim future. There are more Ph.D.s unemployed or underemployed in this country than any other part of the world by far.If you become a doctor of philosophy in English or history or anthropology or political science or languages or—worst of all—in philosophy, you run the risk of becoming overeducated for our national demands. Not for our needs, mind you, but for our demands.Thousands of Ph.D.s are selling shoes, driving cars, waiting on tables and filling out fruitless applications month after month. And then maybe taking a job in some high school or backwater college pays much less than the janitor (看门人)earns.You can equate the level of income with the level of education only so far. Far enough, that is, to make you useful to the gross national product, but not so far that nobody can turn much of a profit on you.1. According to the writer, what the society expects of education is to turn out people who______.2. If you are as gifted as Bernard Shaw or Edison, ______.3. Ph.D.s are most likely to          .4. Which of the following is NOT true?5. The writer is critical of          .

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About 5000 years ago, people in an area north of the Black Sea in southeastern Europe spoke a language called Proto-Indo-European, which is believed to be the ancestor of most European languages. These include the languages that became ancient Greek, ancient German and the ancient Latin.Latin disappeared as a spoken language. Yet it left behind three great languages that became modern Spanish, French and Italian. Ancient German became Dutch, Danish, German, Norwegian, Swedish and one of the languages that developed into English.The English language is a result of the invasions of the island of Britain over many hundreds of years. The first invasions were by a people called Angles about 1500 years ago. The Angles were a German tribe (部落)who crossed the English Channel. Later two more groups crossed to Britain. They were the Saxons and the Jutes. These groups found a people called the Celts, who had lived in Britain for many thousands of years. The Celts and the invaders fought. After a while, most of the Celts were killed, or made slaves. Some escaped to live in the area that became Wales. Through the years, the Saxons, Angles and Jute mixed their different languages. The result is what is called Anglo-Saxon or Old English.The next great invasion of Britain came from the far north beginning about 1100 years ago. Fierce people called Vikings invaded the coast areas of Britain. The Vikings came from Denmark, Norway and other northern countries. They were looking to capture trade goods and slaves and take away anything of value. In some areas, the Vikings became so powerful they built temporary bases. These temporary bases sometimes became permanent. Later, many Vikings stayed in Britain. Many English words used today come from these ancient Vikings. Words like “sky,” “leg,” “skill,” “egg,” “crawl,” “lift” and “take” are from the old languages of the far northern countries.The next invasion of Britain took place more than 900 years ago, in 1066. History experts call this invasion the Norman Conquest.1. What is the general idea of the passage?2. Which of the following languages later developed into English?3. Old English is the mixture of the languages spoken by the following tribes which include_____.4. Which of the following can best describe Vikings who invaded Britain about 1100 years ago?5. What follows the passage is most probably about          .

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For many years, artists have flocked to Paris, France, to paint or to learn to paint. Perhaps artists first went there because of the city’s beauty. They went to paint pictures of the broad tree-lined streets, the great churches, and the graceful river bridges. The artists felt comfortable in Paris because the people of the city had always enjoyed art. Paris had great art museums, filled with famous paintings and statues from many countries. And the people of Paris had always welcomed new ideas. In this city artists felt free to experiment with new ways of painting. As soon as famous artists painted in Paris, students came to learn them. People came to buy paintings. Men called art dealers set up galleries where paintings could be bought and sold. Others kept shops that sold artists’ paints and supplies. Students and the artists who were not yet famous could live in Paris for very little money. They learned by studying great art in the museums, and they learned from one another. They held art fairs, hanging their paintings outdoors along the streets.Today, New York City and Florence, Italy, are also famous art centers. But the world’s principal art exhibits are still held in Paris. Important judges of art live there. Most of the new ways of painting that have started in the last hundred years began in Paris. So artists and art dealers still go to Paris because it is the world’s leading art center.1. Artists first went to Paris because          .2. Artists still go to Paris now because          .3. The main idea of the story is about           .4. The story leads us to believe            .5. The story does not say so, but it makes us think           .

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The history of ecological change is still so elementary that we know little about what really happened, or what the results were. The destruction of the European aurochs as late as 1627 would seem to have been a simple case of overenthusiastic hunting. On more complex matters it often is impossible to find solid information. For a thousand years or more the Frisians and Netherlanders have been pushing back the North Sea, and the process is culminating in our own time in the reclamation of the Zuider Zee. What, if any, species of animals, birds, fish, shore life, or plants have died out in the process? In their heroic combat with the sea have the Netherlanders overlooked ecological values in such a way that the quality of human life in the Netherlands has suffered? I cannot discover that the questions have ever been asked, much less answered.(1)People, then, have often been a dynamic element in their own environment, but in the present state of historical scholarship we usually do know exactly when, where, or with what effects man-induced changes came. As we enter the last third of the 20th century, however for the problem of ecological backlash is mounting feverishly. Natural science, conceived as the effort to understand the nature of things, had flourished in several eras and among several peoples. Similarly there had been an age-old accumulation of technological skills, sometimes growing rapidly, sometimes slowly. But it was not until about four generations ago that Western Europe and North America arranged a marriage between science and technology, a union of the theoretical and the empirical approaches to our natural environment. The emergence in widespread practice of the Baconian belief that scientific knowledge means technological power over nature can scarcely be dated before about 1850, save in the chemical industries, where it is anticipated in the 18th century. (2)Its acceptance as a normal pattern of action may mark the greatest event in human history since the invention of agriculture, and perhaps in nonhuman earth history as well.

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The Forbidden City is the former imperial palace in the center of Beijing, China. A.Construction began in 1406, and the emperor’s court officially moved in by 1420. The Forbidden City got its name because most people were barred from entering the 72-hectare site, surrounded by walls. Even government officials and the imperial family were permitted only limited access. Only the emperor could enter any section at will.The architecture of the Forbidden City conforms rigidly to traditional Chinese principles. All buildings within the walls follow a north-south line, and the most important ones face south to honor the sun. The designers arranged the other buildings, and the ceremonial spaces between them, to impress all visitors with the great power of the Emperor, while reinforcing the insignificance of the individual. This architectural concept was carried out to the smallest detail. For example, the importance of a building was determined not only by its height or width but also by the style of its roof and the quantity of statuettes placed on the roof’s ridges.In recognition of the importance of its unparalleled architecture, UNESCO added the palace to its World Heritage List in 1987. Today, visitors from all over the world do not wait for an imperial invitation to walk about this palace, now a museum of imperial art.One of the most impressive landmarks of the Forbidden City is the Meridian Gate, the formal entrance to the southern side of the Forbidden City. The gate, with its auxiliary wings on either side of the entryway, is 38 meters high at its roof ridge. When you stand in front of this majestic structure, you understand how awed people felt when they stood there listening to imperial proclamations.As you walk through the gate, you come into a large courtyard, 140 meters long and 210 meters wide. Running through the courtyard is the Golden River, which is crossed by five parallel white marble bridges. These bridges lead to the Gate of Supreme Harmony, which, in turn, leads to the heart of the Forbidden City. Its three main halls stand atop a three-tiered marble terrace overlooking an immense plaza. A.The plaza has enough space to hold tens of thousands of subjects paying homage to the emperor.At the northernmost end of the Forbidden City is the Imperial Garden, which is totally different from the rest of the compound. D.Instead of rigid formality, you see a seeming spontaneous arrangement of trees, fishponds, flowerbeds, and sculpture. Here is the place of relaxation for the emperor.1. From the passage, it can be inferred that .2. From the passage, it is implied that the main entrance area to the Forbidden City is .3. Which phrase is closest in meaning to the word “proclamations” in paragraph 4?4. According to the passage, what do the bridges over the Golden River lead to?

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