单选题I got a note from Moira urging me to get in touch.A. instructingB. notifyingC. pushingD. inviting

单选题Many fine cooks insist on ingredients of the highest quality.

单选题When I opened the door, a parcel on the floor caught my eye.

单选题The policeman wrote down all the particulars of the accident.

单选题Ammonia, one of the earliest known nitrogen compounds, was originally produced by distilling organic materials.A. massesB. fabricsC. substancesD. liquids

单选题Where Have All Our Visitors Gone? Sixty years ago, a man named Kenneth Arnold saw something that people are still (51) today, something that changed popular culture for ever. Flying his plane over mountains in the US state of Washington, he saw a line of strange objects, either crescent -shaped or disc-like, flying (52) the motion of a saucer skimming on water. The media soon picked up on the story--the Flying Saucers were here! Was the earth being (53) by creatures from another planet? Soon, so many sightings were made that the US military began to (54) . It called these strange objects UFOs Unidentified Flying Objects, and that is how they are (55) today. Military investigations found no evidence of visitors from outer space. But that did not stop the true (56) . The military were (57) up, they said. Or (58) it was because the travelers from space were of such superior intelligence that they could hide from the most sophisticated military analysts. People have always seen strange lights in the sky. In the past these were explained in (59) ways. In a world where religion was less influential and science fiction was popular, signs from god were replaced by visitors from other (60) . The date of the first UFO signings was also significant. In 1947, World War II had just ended and the (61) war was just beginning. Humanity seemed locked in endless conflicts. Like generations before them, people looked (62) the skies for help. But instead of seeking God, they looked for help from super-intelligent aliens with (63) technology. Belief in UFOs became the first religion of science. However, even people who believe in UFOs are not quite sure why they visit the earth. The universe is a big place and it is (64) to assume that there is life somewhere out there. It is possible that aliens have worked out how to travel through space. Yet some people report that they have been-taken by aliens and have had experiments (65) on them. Why would anyone travel across half the universe to conduct medical experiments on people living in small towns in the United States?

单选题The municipal home-rule system used in many United States cities gives a city the right to {{U}}draft{{/U}} its own charter.

单选题What is the main idea of this passage?

单选题Hens laying eggs need plenty of nourishing food.A. eatB. requireC. findD. use

单选题Soldiers are trained to {{U}}obey{{/U}} their officer's orders without question.

单选题China does a lot of trade with many countries.

单选题People cannot survive without plants.

单选题The Family The structure of a family takes different forms around the word and even in the same society. The family"s form changes as it adapts to changing social and economic influences. Until recently, the most common form in North America was the nuclear family, consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America, the elderly often do not live with the family; they live in retirement communities and nursing homes. There are many parallels between the nuclear family in industrial societies, such as North America, and of families in societies such as that of the Inuits, who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh conditions, mobility allows the family to hunt for food. For North Americans, the hunt for jobs and improved social status also requires mobility. The nuclear family was not always the North American standard. In a more agrarian time, the small nuclear family was usually part of a larger extended family. This might have included grandparents, mother and father, brothers and sisters, uncles, aunts, and cousins. In North America today, there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced, separated, or never-married individuals as are comprised of nuclear families. The structure of the family, not just in North America, but throughout the world, continues to change as it adapts to changing conditions.

单选题Eating Meat--Less or More? Every second in the United States alone, more than 250 animals are slaughtered for food, adding up to more than 8 billion animals each year. Reducing the amount of meat in one's diet is nutritionally, environmentally, and ethically beneficial. People who eat meat usually have weaker immune systems compared to those of vegetarians. Meat has been directly linked to diabetes, obesity, arthritis, and many other illnesses. Furthermore, meat-eaters are at a higher risk for diseases, including cancer, and they are more likely to die from these diseases. Critics say that a meatless diet does not provide enough nutrients, especially protein and iron. Actually, according to A Teen's Guide to Going Vegetarian, by Judy Krizmanic, protein is found in almost every food, and iron appears in many vegetables. Getting enough nutrients in a meat-reduced diet should not be difficult. A 1988study found that some of the highest pesticide residues appear in meat and eggs. Diets including more fruits and vegetables will only make people healthier. Some skeptics believe that there will he a shortage of food if animals are not eaten. In fact, the opposite is true. More than 80% of the corn and 95% of the oats grown in the U. S. are fed to livestock. The world's cattle alone consume enough food to equal the caloric needs of 8.7 billion people, more than the entire human population. One half of the water used in the Unites States also goes to livestock； 2,50 gallons of water produces only 1 lb. of beef. If people eat less meat and more plants, the amount of available food will increase. Many people become vegetarians because they feel that eating animals is unethical. 90 of these animals are raised in confinement. Chickens and other birds have only about half a square foot of space each, and since they are raised so close together, a lot blade is used to cut off their beaks to prevent them from pecking each other to death. Likewise, pigs that are repressed will bite each other's tails, so both their teeth and tails are removed as soon as they are born. Eating animals is hazardous in numerous ways. Even a slight reduction in meat intake is better than nothing at all. Consuming less meat is beneficial to the health of animals, the health of people, and to the health of the world.

单选题Lifetime employment in the Japanese company means that the employee

单选题{{B}}第三篇{{/B}} {{B}} Generation Gap{{/B}} A few years ago, it was fashionable to speak of a generation gap, a division between young people and their elders. Parents complained that children did not show them proper respect and obedience, while children complained that their parents did not understand them at all. What had gone wrong? Why had the generation gap suddenly appeared? Actually, the generation gap has been around for a long time. Many critics argue that it is built into the fabric of our society. One important cause of the generation gap is the opportunity that young people have to choose their own life styles. In more traditional societies, when children grow up, they are expected to live in the same area as their parents, to marry people that their parents know and approve of, and often to continue the family occupation. In our society, young people often travel great distances for their education, most out of the family home at an early age, marry or live or choose occupations different from those of their parents. In our upwardly mobile society, parents often expect their Children to do better than they did: to find better jobs, to make more money, and to do all the things that they were unable to do. Often, however, the ambitions that parents have for their children are another cause of the division between them. Often they discover that they have very little in common with each other. Finally, the speed at which changes take place in our society is another cause of the gap between the generations. In a traditional culture, elderly people are valued for their wisdom, but in our society the knowledge of a lifetime may become obsolete overnight. The young and the old seem to live in two very different worlds, separated by different skills and abilities. No doubt, the generation gap will continue to be a feature of American life for some time to come. Its causes are rooted in the freedoms and opportunities of our society, and in the rapid pace at which society changes.

单选题Importance of Services The United States has moved beyond the industrial economy stage to the point where it has become the world's first service economy. Almost three fourths of the non-farm labor force is employed in service industries, and over two-thirds of the nation's gross national product is accounted for by services. Also, service jobs typically hold up better during a recession than do jobs in industries producing tangible goods. During the 20-year period of 1966 to 1986, about 36 million new jobs were created in the United States — far more than in Japan and Western Europe combined. About 90 per cent of these jobs were in service industries. During this same time span, some 22 million women joined the labor force — and 97 per cent of these women went to work in the service sector. These employment trends are expected to continue at least until the year 2000. For the period 1986—2000, the Bureau of Labor Statistics predicts that over 21 million new jobs will be created and 93 per cent of them will be in service industries. Moreover, most of this explosive growth in services employment is not in low — paying jobs, contrary to the beliefs of many economists, business and labor leaders, and politicians. These people argue that manufacturing jobs, which have been the economic foundation of America's middle class, are vanishing. They claim that factory workers are being replaced with a host of low-wage earners. It is true that manufacturing jobs have declined, with many of them going to foreign countries. It is also true that there has been growth in some low-paying service jobs. Yet cooks and counter people still represent only 1 per cent of the US labor force today. Furthermore, for many years the fastest-growing occupational category has been "professional, technical, and related work." These jobs pay well above the average, and most are in service industries. About one-half of consumer expenditures are for the purchase of services. Projections to the year 2000 indicate that services will attract all even larger share of consumer spending. A drawback of the service economy boom is that the prices of most services have been going up at a considerably faster rate than the prices of most tangible products. You are undoubtedly aware of this if you have had your car or TV set repaired, had your shoes half-soled, or paid a medical bill in recent years. When we say that services account for close to one-half of consumer expenditures, we still grossly understate the economic importance of services. These figures do not include the vast amounts spent for business services. By all indications, spending for business services has increased even more rapidly than spending for consumer services. gross national product 国民生产总值, 略作 GNP tangible goods 有形商品 drawback n. 缺点; 不利条件

单选题How the Body Keeps the Same Temperature The temperature of your body should be always just the same, no matter whether the weather is trot or cold. That is why the doctor uses his thermometer when you are sick. When you are well,your temperature is ninety-eight and six tenths degrees. If he finds it (51) than that,it is a sure sign that something is wrong. The body keeps the same temperature all the time,because it balances (平衡) the heat it produces and (52) off. It is always burning up food and producing heat. It can produce heat faster when it needs to or give off heat faster when it becomes too warm. Let's see (53) this happens. The heat of your body is given off chiefly through the skin. When you are (54) ,your skin is tight and shows "goose flesh". When you get chilly (寒冷的),you must dance around to keep warm or (55) you will shiver (颤抖). (56) your muscles begin to work,burn up fuel,and produce more heat. It is not (57) to shiver,so you usually prefer warming up by exercise, or put (58) more clothes to keep heat in. When you are warm,the skin is loose and soft. It is so supplied (59) blood that heat is given off rapidly. If you get too hot,you begin to sweat,and (60) body heat is used in evaporating (蒸发) the moisture (潮湿) from your skin. You wear less clothing, too, in warm (61) or in a warm room,so that warmth can be given off freely. You feel you don't (62) exercising because your body is warm (63) ,and the extra heat produced by exercise makes you uncomfortable. You can see from this why you (64) differently in different kinds of weather. In summer,when it is warm,you feel tired and lazy. You do not care to work or play,but enjoy lying and doing nothing. When you get out of doors in winter,the cold air makes you feel (65) . You want to run and play.

单选题Many forms of cancer can be cured if detected earlyA. selectedB. operatedC. developedD. discovered

单选题In general, the British people belong to one of the more {{U}}affluent{{/U}} countries of Europe and enjoy a high standard of living compared to the rest of the world. A. plentiful B. powerful C. friendly D. wealthy