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}} It has been argued that an infant under three who is cared for outside the home may suffer because of the separation from his parents. The British psychoanalyst John Bowlby maintains that separation from the parents during the sensitive "attachment" period from birth to three may scar a child's personality and predispose to emotional problems in later life. Some people have drawn the conclusion from Bowlby's work that children should not be subjected to day care before the age of three because of the parental separation it entails, and many people do believe this. But there are also arguments against such a strong conclusion. Firstly anthropologists point out that the secluded love affair between children and parents found in modern societies does not usually exist in traditional societies. For example, we saw earlier that among the Ngoni the father and mother of a child did not rear their infant alone--far from it. But traditional societies are so different from modern societies that comparisons based on just one factor are hard to interpret. Secondly, common sense tells us that day care would not be so widespread today if parents, caretakers or pediatricians found that children had problems with it. But Bowlby's analysis raises the possibility that early day care has delayed effects. The possibility that such care might lead to, say, more mental illness or crime 15 or 20 years later can only be explored by the use of statistics. Statistical studies of this kind have not yet been carried out, and even if they were, the results would be certain to be complicated and controversial. Thirdly, in the last decade, there have been a number of careful American studies of children in day care, and they have uniformly reported that day care had a neutral of slightly positive effect on children's development. But tests that have had to be used to measure this development are not widely enough accepted to settle the issue.

单选题Illinois has produced writers such as Car1 Sandburg, gangsters such as A1 Capone, and architects such as Louis Sullivan. A. violent criminals B. politicians C. musicians D. industrialists

单选题 Explorer of the Extreme Deep Oceans cover more than two-thirds of our planet. Yet, just a small fraction of the underwater world has been explored. Now, scientists at the Woods Hole Oceanographic Institution (WHOI) in Massachusetts are building an underwater vehicle that will carry explorers as deep as 6,500 meters (21,320 feet). The new machine, known as a manned submersible or human-operated vehicle (HOV), will replace another one named Alvin which has an amazing record of discovery, playing a key role in various important and famous undersea expeditions. Alvin has been operating for 40 years but can go down only 4,500 meters (14,784 feet). It's about time for an upgrade, WHOI researchers say. Alvin was launched in 1964. Since then, Alvin has worked between 200 and 250 days a year, says Daniel Fornari, a marine geologist and director of the Deep Ocean Exploration Institute at WHOI. During its lifetime, Alvin has carried some 12,000 people on a total of more than 3,000 dives. A newer, better versions of Alvin is bound to reveal even more surprises about a world that is still full of mysteries, Fornari says. It might also make the job of exploration a little easier. "We take so much for granted on land," Fornari says. "We can walk around and see with our eyes how big things are. We can see colors, special arrangements." Size-wise, the new HOV will be similar to Alvin. It'll be about 37 feet long. The setting area inside will be a small sphere, about 8 feet wide, like Alvin, it'll carry a pilot and two passengers. It will be just as maneuverable. In most other ways, it will give passengers more opportunities to enjoy the view, for one thing. Alvin has only three windows, the new vehicle will have five, with more overlap so that the passengers and the pilot can see the same thing. Alvin can go up and down at a rate of 30 meters every second, and its maximum speed is 2 knots (about 2.3 miles per hour), while the new vehicle will be able to ascend and descend at 44 meters per second. It'll reach speeds of 3 knots, or 3.5 miles per hour.

单选题His idea to solve the problem is really {{U}}original{{/U}}. A. creative B. great C. practical D. perfect

单选题The food is {{U}}insufficient{{/U}} for three people. A. instant B. infinite C. inexpensive D. inadequate

单选题The minister {{U}}approved{{/U}} the building plans after he discussed with other ministers.

单选题America's emphasis on the importance of education for everyone has {{U}}spurred{{/U}} scientific research. A. encouraged B. endangered C. endorsed D. enlarged

单选题 Once Daily Pill Could Simplify HIV Treatment Bristol-Myers Squibb and Gilead Sciences have combined many HIV drugs into a single pill. Sometimes the best medicine is more than one kind of medicine. Malaria, tuberculosis and HIV/AIDS, {{U}} {{U}} 1 {{/U}} {{/U}}, are all treated with combinations of drugs. But that can mean a lot of pill to take. It would be {{U}} {{U}} 2 {{/U}} {{/U}}drug companies combined all the medicines into a single pill, taken just once a day. Now, two companies say they have done that for people just {{U}} {{U}} 3 {{/U}} {{/U}}treatment for HIV, the virus that causes AIDS. The companies are Bristol-Myers Squibb and Gilead Science. They have {{U}} {{U}} 4 {{/U}} {{/U}}a single pill that combines three drugs currently on the market. Bristol-Myers Squibb sells one of them {{U}} {{U}} 5 {{/U}} {{/U}}the name of Sustiva. Gilead combined the {{U}} {{U}} 6 {{/U}} {{/U}}, Emtriva and Viread, into a single pill in two thousand four. Combining drugs involves more than {{U}} {{U}} 7 {{/U}} {{/U}}issues. It also involves issues of competition {{U}} {{U}} 8 {{/U}} {{/U}}the drugs are made by different companies. The new once-daily pill is the result of {{U}} {{U}} 9 {{/U}} {{/U}}is described as the first joint venture agreement of its kind in the treatment of HIV. In January the New England Journal of Medicine published a study of the new pill. Researcher compared its {{U}} {{U}} 10 {{/U}} {{/U}}to that of the widely used combination of Sustiva and Combivir. Combivir {{U}} {{U}} 11 {{/U}} {{/U}}two drugs, AZT and 3TC. The researchers say that after one year of treatment, the new pill suppressed HIV levels in more patients and with fewer {{U}} {{U}} 12 {{/U}} {{/U}}effects. Gilead paid for the study. Professor Joel Gallant at the Johns Hopkins School of Medicine in Baltimore, Maryland, led the research. He is a paid adviser to Gilead and Bristol-Meyers Squibb as well as the maker of Combivir, Glaxo Smith Kline. Glaxo Smith Kline reacted {{U}} {{U}} 13 {{/U}} {{/U}}the findings by saying that a single study is of limited value. It says the effectiveness of Combivir has been shown in each of more than fifty studies. The price of the new once-daily pill has not been announced. But Gilead and Bristol-Myers Squibb say they will provide it at reduced cost to developing countries. They plan in the next few months to ask the United States Food and Drug Administration to approve the new pill. There are limits to who could take it {{U}} {{U}} 14 {{/U}} {{/U}}the different drugs it contains. For example, {{U}} {{U}} 15 {{/U}} {{/U}}women are told not to take Sustiva because of the risk of birth disorders. Experts say more than forty million people around the world are living with HIV.

单选题They wrote {{U}}tales{{/U}} of princess and magic birds.

单选题The famous speech "I Have a Dream" was delivered by Dr. Martin Luther King in Washington, D. C. in 1963.A. movingB. remarkableC. religiousD. well-known

单选题According to the passage, physical, mental, and emotional health are

单选题It’s {{U}}sensible{{/U}} to start any exercise program gradually at first

单选题{{B}}第二篇{{/B}} {{B}} Obesity: the Scourge of the Western World{{/B}} Obesity is rapidly becoming a new scourge of the western world, delegates agreed at the 11th European Conference on the issue in Vienna Wednesday to Saturday. According to statements before the opening of the conference -- of 2,000 specialists from more than 50 countries -- 1.2 billion people worldwide are overweight, and 250 million are obese. Professor Bernhard Ludvik of Vienna General Hospital said, "Obesity is a chronic illness, fin Germany, 20 per cent of the people are already affected, but in Japan only one per cent." But he said that there was hope for sufferers thanks to the new scientific discoveries and medication. Professor Friedrich Hopichler of Salzberg said, "We are living in the new age (but) with the metabolism of a stone-age man." "I have just been to the United States. It is really terrible. A pizza shop is springing up on every corner. We have been overrun by fast food and Coca-Cola-ization. " Many of the experts stressed that obesity was a potential killer. Hopichler said, "Eighty percent of all diabetics are obese, also fifty per cent of all. patients with high blood pressure and fifty per cent with adipose tissue complaints." "Ten per cent more weight means thirteen per cent more risk of heart disease. Reducing one's weight by ten per cent leads to thirteen per cent lower blood pressure." Another expert Hermann Toplak said that the state health services should improve their financing of preventive programs. "Though the health insurance pays for surgery (such as reducing the size of the stomach) when the body-mass index5 is more than 40. That is equivalent to a weight of 116 kilograms for a height of 1.70 meters. One should start earlier." Ludvik said that prevention should begin in school. "Child obesity ( fat deposits) correlates with the time which children spend in front of TV sets." The consequences were only apparent later on. No more than fifteen per cent of obese people lived to the average life expectancy for their population group.

单选题This {{U}}survey{{/U}} was conducted to find out how many people prefer butter.

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 {{B}} The Discovery of Penicillin (青霉素){{/B}} In the autumn of 1928, a Scottish scientist Alexander Fleming was searching for a substance that would kill fatal germs(细菌). On his desk were small plates containing the germs. {{U}}(51) {{/U}} evening, he forgot to cover one of the plates. When he arrived the next morning, he found a spot of green mould(霉菌)in one plate. This is not strange because the room was rather damp(潮湿) ,with {{U}}(52) {{/U}} one window. But Fleming did not throw out the spoiled plate, be cause something unusual caught {{U}}(53) {{/U}} attention. On the uncovered plate, near the green mould, the germs {{U}}(54) {{/U}}. That meant that the mould had killed the germs there. Fleming watched the mould grow {{U}}(55) {{/U}} several days. As the green mould spread, it killed more and {{U}}(56) {{/U}} germs. Fleming began to study the mysterious mould. It grew and grew. Then he noticed tiny drops of liquid on the surface of the mould. Perhaps this was the chemical that was destroying the germs. Fleming drew off the liquid, drop by drop. He put this liquid in a test tube, and it {{U}}(57) {{/U}} the germs in the tube. He called the {{U}}(58) {{/U}} penicillin. Fleming published his finding in a British medical journal {{U}}(59) {{/U}} 1929. But for ten years, while he continued to experiment with penicillin, his discovery was largely ignored near the medical world. Then in 1938 a team of British scientists happened to {{U}}(60) {{/U}} about Fleming's findings in an old medical journal. They made further {{U}}(61) {{/U}} with the drug. They tested it on animals and then {{U}}(62) {{/U}} human beings. In 1941, it was declared safe for use on humans. Soon penicillin was produced in large quantity and was used to {{U}}(63) {{/U}} many infections(感染). Penicillin is a very powerful drug. {{U}}(64) {{/U}} can treat many kinds of infections. However, it has some bad effects. Sometimes it causes a skin problem or a light fever. And it can be fatal for people {{U}}(65) {{/U}} are allergic(过敏性的)to it. That is why before you take a penicillin shot, the doctor gives you a test shot first.

单选题They didn"t realize how serious the problem was.

单选题I'm working with a guy from London. A. teacher B. student C. friend D. man

单选题According to the passage, hearing loss is

单选题Passive Smoking Is Workplace Killer Pressure mounted on Britain on Monday to take action on 1 smoking with new research showing second-hand smoke 2 about one worker each week in the hospitality industry (服务) Professor Knorad Jamrozik, of Imperial (帝国的) College in London, told a conference on environmental tobacco that second-hand 3 kills 49 employees in pubs, bars, restaurants and hotels each year and contributes to 700 deaths from lung cancer, heart 4 and stroke across the total national workforce. "Exposure in the hospitality 5 at work outweighs (超过) the consequences of exposure of living 6 a smoker for those staff," Jamrozik said in an interview. Other 7 have measured the levels of exposure to passive smoking but Jamrozik calculated how it would translate into avoidable deaths. His findings are 8 on the number of people working in the hospitality industry in Britain, their exposure to second-hand smoke and their 9 of dying from it. Jamrozik said the findings would apply to 10 countries in Europe because, to a greater or 11 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 12 smoking in public places. "Environmental tobacco smoke in pubs, bars, restaurants and other public places is 13 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 (易受伤害的 ) staff and the public, it will 14 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 15 . New York and parts of Australia have taken similar measures.

单选题{{U}}At length{{/U}}, they climbed up to the peak of the mountain.