单选题We all think that the new device he has proposed is ingenious.

单选题Boil drinking water for at least five minutes, to kill the germs, then let it cool in a clean container. Keep it covered.A. insectsB. bugsC. bacteriaD. pests

单选题{{B}}第二篇{{/B}} {{B}}New Foods and the New World{{/B}} In the last 500 years, nothing about people -- not their clothes, ideas, or languages -- has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500's. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today. The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine (饥荒)" of 1845-1846, and thousands more were forced to leave their homeland and move to America. There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400's. According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one third of the world's population now starts the day with.

单选题It was very {{U}}thoughtful{{/U}} of you to make all the necessary arrangements for us. A. conservative B. considerate C. romantic D. independent

单选题The Cold Places The Arctic is a polar region. It surrounds the North Pole. Like Antarctica, the Arctic is a land of ice and snow. Antarctica holds the record for a low temperature reading 125 Fahrenheit below zero. Readings of 85 degrees below zero are common in both the Arctic and Antarctica. Winter temperatures average 30 degrees below zero in the Arctic. At the South Pole the winter is about 73 degrees below zero. One thing alone makes it almost impossible for men to live in Antarctica and in parts of the Arctic. This one thing is the low temperature the killing chill of the far North and the polar South. To survive, men must wear the warmest possible clothing. They must build windproof shelters. They must keep heaters going at all times. Not even for moment can they be unprotected against the below-zero temperature. Men have a way of providing for themselves. Polar explorers wrap themselves in warm coats and furs. The cold makes life difficult. But the explorers can stay alive. What about animals? Can they survive'? Do we find plants? Do we find life in the Arctic and the Antarctica? Yes, we do. There is life in the oceans. There is life on land. Antarctica, as we have seen, is a cold place indeed. But this has not always been the case. Expedition scientists have discovered that Antarctica may have been much like our own. Explores have discovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps and forests. Heat and moisture must have kept the trees in the forests alive.

单选题It is Uvirtually /U impossible to persuade him to apply for the job.

单选题He has Umade up his mind/U to give up smoking.

单选题An estimated 36 million to 46 million people are living with AIDS, two - thirds of them in Africa, but only 440,000 people in developing countries were receiving treatment by the end of 2003, the UN health agency said in its annual report. " Without treatment, all of them will die a premature and in most cases painful death, "the WHO said in the 169 page World Health Report. Most people living with AIDS will die a premature and painful deathA. RightB. WrongC. Not mentioned

单选题Among all cancers, lung cancer is the biggest killer: more than 100,000 Americans die of the disease each year. Giving up smoking is one way to reduce the risk, but another answer may lie in the kitchen, according to a report in British medical journal The Lancet. Since 1957, a team of researchers has monitored the dietary habits and medical histories of 2,000 middle-aged men employed by the Western Electric Co. in Chicago. Led by Dr. Pritichard Shekelle of Chicago's Rush--Presbyterian--St. Luke's medical Centre, the team recently began to sort out the links between the subjects' dietary patterns and cancer. Other animal and human studies has suggested that vitamin A might offer some protection against lung cancer, but did not distinguish vitamin A made in the body from that in carotene (胡萝卜素), which is abundant in a variety of vegetables and fruits, including carrots, spinach, broccoli, squash, tomatoes and apples. The Western Electric study showed little correlation (相互关系)between the incidence of lung cancer and the consumption of foods containing performed vitamin A. But the data on carotene intake (摄入)revealed a significant relationship. Among the 488 men who had the lowest carotene consumption, there were 14 cases of lung cancer; in a group of the same size that ate the most carotene, only two eases developed. The apparent protective effect of carotene held up even for long-time smokers. Further studies will be necessary before the link between lung cancer and carotene can be firmly established. Meanwhile, researchers warn against taking large amounts of vitamin-A supplements, which can be extremely poisonous in high doses. Instead, they advise a well-balanced diet that includes foods rich in carotene.

单选题Stress Level Tied to Education Level People with less education suffer fewer stressful days, according to a report in the current issue of the Journal of Health and Social Behavior. However, the study also found that when less-educated people did suffer stress it was more severe and had a larger impact on their health. From this, researchers have concluded that the day-to-day factors that cause stress are not random. Where you are in society determines the kinds of problems that you have each day, and how well you will cope with them. The research team interviewed a national sample of 1,031 adults daily for eight days about their stress level and health. People without a high school diploma reported stress on 30 percent of the study days, people with a high school degree reported stress 38 percent of the time, and people with college degrees reported stress 44 percent of the time. "Less advantaged people are less healthy on a daily basis and are more likely to have downward turns in their health," lead researcher Dr. Joseph Grzywacz, of Wake Forest University Baptist Medical Center, said in a prepared statement. "The downward turns in health were connected with daily stressors and the effect of daily stressors on their health is much more devastating for the less advantaged." Grzywacz suggested follow-up research to determine why less-educated people report fewer days of stress when it is known their stress is more acute and chronic. "If something happens every day, maybe it"s not seen as a stressor," Grzywacz says. "Maybe it is just life."

单选题Passive smoking is workplace killer Pressure mounted on Britain on Monday to take action on 【51】 smoking with new research showing second, hand smoke 【52】 about one worker each week in the hospitality industry. Professor Konrad Jamrozik,of Imperial College in London, told a conference on environmental tobacco that second-hand 【53】 kills 49 employees in pubs, bars, restaurants and hotels each year and contributes to 700 deaths from lung cancer, heart 【54】 and stroke across the total national work force. "Exposure in the hospitality 【55】 at work outweighs the consequences of exposure of living 【56】 a smoker for those staff," Jamrozik said in an interview. Other 【57】 have measured the levels of exposure to passive smoking but Jamrozik calculated how it would translate into avoidable deaths. His findings are 【58】 on the number of people working in the hospitality industry in Britain, their exposure to second, hand smoke and their 【59】 of dying from it. Jamrozik said me findings would apply to 【60】 countries in Europe because, to a greater or 【61】 extent, levels of smoking in the community are similar. Professor Carol Black, president of the Royal College of Physicians, which sponsored the meeting, said the research is proof of the need for a ban on smoking in 【62】 places. "Environmental tobacco smoke in pubs, bars, restaurants and other public places is 【63】 damaging to the health of employees as well as the general public," she said in a statement. " Making these places smoke, free not only protects vulnerable staff and the public. It will 【64】 help over 300,000 people in Britain to stop smoking completely," she added. Ireland recently became the first country to introduce a national ban on smoking in public 【65】 . New York and parts of Australia have taken similar measures. workplace/n.工作场所;车间 killer/n. 杀人者;凶手 hospitality/n.友好款待;好客;殷勤 imperial/adj. 英联邦的 outweighs. 在重要性(或价值上)超过 vulnerable/adj. 易受伤的;脆弱的

单选题The last paragraph indicates that treatment of the disorder ________.

单选题I wonder what your Uaim/U in life is.

单选题His description was pretty vague .

单选题{{B}}第二篇{{/B}} {{B}} The Roles of Men and Women{{/B}} In a family where the roles of men and women are not sharply separated and where many household tasks are shared to a greater or lesser extent, notions of male superiority are hard to maintain. The pattern of sharing in tasks and in decisions makes for equality, and this in turn leads to further sharing. In such a home, the growing boy and girl learn to accept that equality more easily than did their parents and to prepare more fully for participation in a world characterized by cooperation rather than by the "battle of the sexes". If the process goes too far and man's role is regarded as less important—and that has happened in some cases—we are as badly off as before, only in reverse. It is time to realize the role of the man in the American family. We are getting a little tired of "Momism(母亲崇拜)"—But we don't want to exchange it for a "neo—Popism(爸爸至上)." What we need, rather, is the recognition that bringing up children involves a partnership of equals. There are signs that psychiatrists(精神病医生), psychologist(心理学家), social workers, and specialists on the family are becoming more aware of the part men play and that they have decided that women should not receive all the credit—not all the blame. We have almost given up saying that a woman's place is in the home. We are beginning, however, to analyze man's place in the home and to insist that he does have a place in it. Nor is that place irrelevant to the healthy development of the child. The family is a co-operative enterprise for which it is difficult to lay down rules, because each family needs to work out its own ways for solving its own problems. Excessive authoritarianism(权力主义，独裁主义) has unhappy consequences, whether it wears skirts or trousers, and the ideal of equal rights and equal responsibilities is pertinent(有关的) not only to a healthy democracy, but also to a healthy family.

单选题I'm working with a Uguy/U from London.

单选题{{B}}第二篇{{/B}} {{B}}Crystal Ear{{/B}} One day a friend asked my wife Jill if I wanted a hearing aid. "He certainly does," replied Jill. After hearing about a remarkable new product, Jill finally got up the nerve to ask me if rd ever thought about getting a hearing aid. "No way," I said. "It would make me look 20 years older." "No, no," she replied. "This is entirely different. It's Crystal Ear!" Jill was right. Crystal Ear is different—not the old-styled body worn or over-the-ear aid, but an advanced personal sound system so small that it's like contacts (隐形眼镜) for your ears. And Crystal Ear is super-sensitive and powerful, too. You will hear sounds your ears have been missing for years. Crystal Ear will make speech louder, and the sound is pure and natural. I couldn't believe how tiny it is. It is smaller than the tip of my little finger and it's almost invisible when worn. There are no wires, no behind-the-ear device. Put it in your ear and its ready-to-wear mold (形状) fits comfortably. Since it's not too loud or too tight, you may even forget that you're wearing it! Use it at work or at play. And if your hearing problem is worse in certain situations, use Crystal Ear only when you need it. Hearing loss, which occurs typically prior to teenage years, progresses throughout one's lifetime. Although hearing loss is now the world's number one health problem, nearly 90 percent of people suffering hearing loss choose to leave the problem untreated. For many millions, treating hearing loss in a conventional way can involve numerous office visits, expensive testing and adjustments to fit your ear. Thanks to Crystal Ear, the "sound solution" is now convenient. Almost 90 percent of people with mild hearing loss, and millions more with just a little hearing drop-off (下降), can be dramatically helped with Crystal Ear. Moreover, its superior design is energy-efficient, so batteries can last months. Crystal Ear is now available to help these people treat their hearing loss with a small hearing amplifier (放大器).

单选题The difference ______ the fact that they are from different countries.A. lies inB. lies onC. relies onD. leads to

单选题Technology is a beauty. We eagerly adopt its pleasure, preferring to cope with the drawbacks on the morning after. Who can resist innovations like mobile phones and networked computers? They put anyone, anywhere, within earshot, and zip information--whether an expression of love, a medical chart or a plan for a product rollout - around the world in a heartbeat. Unforamately, it' s all too easy for eavesdroppers to snap up those messages and conversations en route to their intended receiver. We think we're whispering, but we're broadcasting. Eavesdroppers love teachnology better than anybody else.A. RightB. WrongC. Not mentioned

单选题This new policy has led to a Udramatic/U increase in production.