单选题In view of the basic principles of natural health care, which of the following statements is NOT true?

单选题下面的短文有15处空白，请根据短文的内容为每处空白处确定一个最佳选项。 Changes of Women's Role The role of women in Britain has changed a lot in this century, {{U}}(51) {{/U}} in the last twenty years. The main change has been {{U}}(52) {{/U}} giving women greater equality with men. Up to the beginning of this century, women seem to have had {{U}}(53) {{/U}} fights. They could not vote and were kept at home. {{U}}(54) {{/U}}, as far as we know, most women were happy with this situation. Today, women in Britain certainly {{U}}(55) {{/U}} more rights than they used to. They were {{U}}(56) {{/U}} the vote in 1919. In 1970 a law was passed to give them an equal {{U}}(57) {{/U}} of wealth in the case of divorce, {{U}}(58) {{/U}} the Equal Pay Act gave them the right of equal pay with men for work of equal value in the same year. Yet {{U}}(59) {{/U}} these changes, there are still great difference in status between men and women. Many employers seem to {{U}}(60) {{/U}} the Equal Pay Act, and the average working women is {{U}}(61) {{/U}} to earn only about half that a man earns for the same job. {{U}}(62) {{/U}}a survey, at present, only one-third of the country's workers are {{U}}(63) {{/U}} women. This small percentage is partly {{U}}(64) {{/U}} a shortage of nurseries. If there were {{U}}(65) {{/U}} nurseries, twice as many women might well go out to work.

单选题I want to provide my boys with a decent education.

单选题There is still an immense amount of work to be done.

单选题Dr. Bergsten also has served on the senior staff of the National Security Council, 1969-71, and as a senior fellow of the Brookings Institution, another {{U}}prominent{{/U}} Washington "think-tank'.

单选题The criminal gave us a long{{U}} chase {{/U}}before we caught him.

单选题She is very conscientious about her work.A. worriedB. carefulC. anxiousD. nervous

单选题 Japanese Car Keeps Watch for Drunk Drivers A concept car developed by Japanese company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over tired drivers off the road. The car's sensors check odors inside the car and monitor a driver's sweat for traces of alcohol. An in-car computer system can issue an alert or even lock up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver's palm. Other carmakers have developed similar detection systems. For example, Sweden's Volvo has developed a breathalyzer attached to a car's seat belt that drivers must blow into before the engine will start. Nissan's new concept vehicle also includes a dashboard-mounted camera that tracks a drivers alertness by monitoring their eyes. It will sound an alarm and issue a spoken warning in Japanese or English if it judges that the driver needs to pull over and rest. The car technology is still in development, but general manager Kazuhiro Doi says the combination of different detection systems should improve the overall effectiveness of the technology. "For example, if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would still be used," Doi says. Nissan has no specific timetable for marketing the system, but aims to use technology to cut the number of fatalities involving its vehicles to half 1995 levels by 2015. The car's seat belt can also tighten if drowsiness is detected, while an external camera checks that the car is keeping to its lane properly. However, Doi admits that some of the technology, such as the alcohol odor sensor, should be improved. "If you drink one beer, it's going to register, so we need to study what's the appropriate level for the system to activate," he says. In the U.K., some research groups are using similar advanced techniques to understand driver behavior and the effectiveness of different road designs.

单选题I found that same pattern - a health - care system that reflects a nation's basic cultural values -everywhere I went when I traveled the world for a PBS documentary and a book about how other wealthy countries provide health care. " The fundamental truth about health care in every country," notes Princeton professor Uwe Reinhardt, one of the world's preeminent health - care economists, "is that national values, national character, determine how each system works. " What is the working principle of health - care systems in every country?A. It fits the national values and character of the country.B. It determines a nation's basic cultural values.C. It fits the needs of everyone in the country.D. It is a right must be equitably distributed to everyon

单选题Ants always put food away in Autumn.

单选题The scientists began to accumulate data.

单选题Governments should rule only with the {{U}}consent{{/U}} of the governed.

单选题The movie has a satisfying ending.

单选题A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological clock tells 1 when to form flowers and when the flowers should open. It tells 2 when to leave the protective cocoons and fly away, and it tells animals and human beings when to eat, sleep and wake. Events outside the plant and animal 3 the actions of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur 4 the number of hours of daylight. In the short 5 of winter, its fur becomes white. The fur becomes gray brown in color in the longer hours of daylight in summer. Inner signals control other biological clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration 6 twice each year. Birds 7 flying become restless when it is time for the trip, 8 they become calm again when the time of the flight has ended. Scientists say they are beginning to learn which 9 of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain 10 to control the timing of some of our actions. These 11 tell a person when to 12 , when to sleep and when to seek food. Scientists say there probably are other biological clock cells that control other body activities. Dr. Moorhead is studying 13 our biological clocks affect the way we do our work. For example, most of us have great difficulty if we must often change to different work hours. 14 can take many days for a human body to accept the major change in work hours. Dr. Moorhead said industrial officials should have a better understanding of biological clocks and how they affect workers. He said 15 understanding could cut sickness and accidents at work and would help increase a factory"s production.

单选题The workers in that factory {{U}}manufacture{{/U}} furniture. A. promote B. paint C. produce D. polish

单选题Suppose you make your parents so happy, they decide to have another baby just like you. It might be flattering(讨人喜欢的), but how would you feel about having a little brother or sister who is also your twin? A laboratory experiment conducted last fall suggests it may someday be possible. For the first time ever, scientists made exact copies, or clones(克隆), of a human embryo. Although the embryos grew for only six days, cloned embryos could theoretically be implanted in a woman's womb(子宫)and develop into normal babies. Or they could be frozen and implanted years later. The scientists developed their cloning technique to make it easier for childless couples to have babies by in vitro(在体外的)fertilization. In this procedure, sperm(精子) from the man fertilizes an egg from the woman in a laboratory dish. In most case, doctors must try implanting several embryos before one stays in the womb. Cloned embryos would give them many more embryos to implant. But the technique could also be used for other purposes. Parents might freeze embryos cloned from their children so that they could be replaced if any of them died. The clones would also be ideal donors if the children needed organ transplants. Another possibility: Childless couples could go to a bank of frozen embryos and choose a child just like one who's already living. Some people are concerned that these couples might pick only beautiful, successful children. The ethical dilemmas(困境)of cloning have not yet been discussed fully because the public assumed it was a long way off. Many people are calling for(要求，提倡)controls on cloning immediately before the practice is abused. What do you think?

单选题She exhibited great powers of endurance during the climb.

单选题They have the capabiliy to complete the task in aweek.A. possibilityB. competenceC. courageD. mixture

单选题In the American family the husband and wife usually share important decision making. When the children are old enough, they take part (51) . Foreigners are often surprised by |he permissiveness of American parents. The old rule that "children should be seen and not heard" is rarely (52) , and children are often allowed to do what they wish without strict parental (53) . The father seldom expects his children to obey him (54) question, and children are encouraged to be independent (55) an early age. Some people believe that American parents carry this freedom (56) far. Others think that a strong father image would not (57) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to (58) their parental families by the time they have (59) their late teens or early twenties. (60) , not to do so is often regarded as a failure, a kind of weak dependence. This pattern of independence often results in serious (61) for the aging parents of a small family. The average American is expected to live (62) the age of 70. The job-retirement age is (63) 65. The children have left home, married, and (64) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. (65) the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.

单选题U. S. Eats Too Much Salt People in the United States consume more than twice the recommended amount of salt, raising their risk for high blood pressure, heart attacks and strokes, government health experts said on Thursday. They found nearly 70 percent of U. S. adults are in high-risk groups that would benefit from a lower-salt diet of no more than 1,500 mg per day, yet most consume close to 3,500 mg per day. "It's important for people to eat less salt. People who adopt a heart-healthy eating pattern that includes a diet low in sodium and rich in potassium and calcium can improve their blood pressure, " Dr. Darwin Labarthe of the Centers for Disease Control and Prevention said in a statement. "People need to know their recommended daily sodium limit and take action to reduce sodium intake. " Labarthe said. The study in CDC's weekly report on death and disease used national survey data to show that two out of three adults should be consuming no more than 1,500 mg of sodium per day because they are black or over the age of 40 — which are considered high-risk groups. Yet studies show most people in the United States eat 3,436 mg of sodium per day, according to a 2005-2006 CDC estimate. Most of the sodium eaten comes from packaged, processed and restaurant foods. The CDC said it will join other agencies in the Health and Human Services department in working with major food manufacturers and chain restaurants to reduce sodium levels in the food supply. Nationwide, 16 million men and women have heart disease and 5.8 million are estimated to have had a stroke. Cutting salt consumption can reduce these risks, the CDC said.