单选题Life was not easy for many children living 1 00 years ago．

单选题The document was compiled by the Department of Health.

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

单选题The eye operation was such a failure that the woman refused to pay for it.

单选题 Natural Medicines Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely. They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny (发亮的) instruments. Before the time of big hospitals with strange and wonderful equipment. Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How? By ancient methods. By medicines that might seem mysterious, even magical (有魔力的). Traditional medicines are neither mysterious nor magical, however. Through the centuries, tribal (部族的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases. Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modern medicines come, in one way or another, from nature. Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive. So scientists' interest in traditional medicine is not new. But it has become an urgent concern. This is because the earth's supply of natural medicines may be dropping rapidly.

单选题 A New Cause of Suffering A conference on obesity (肥胖症) was recently held in Vienna. Two thousand experts from more than fifty countries attended the conference. According to statistics, 1.2 billion people worldwide are overweight, and 250 million are too fat. Obesity is rapidly becoming a new cause of suffering. Professor Friedrich hopichler of Salzberg said: "we are living in the new age but with the metabolism (新陈代谢) of a stone-age man. I have just been to the United States. It is really terrible. A pizza (比萨饼) shop is appearing on every corner. We have been occupied 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 (糖尿病人) are too fat, also fifty percent of all patients with high blood pressure and fifty percent with fatty tissue complaints. Ten percent more weight means thirteen percent more risk of heart disease. Reducing one's weight by ten percent leads to thirteen percent lower blood pressure." Another expert Hermann Toplak said that the state health services should improve their financing of preventive programs. "The health insurance pays for surgery (such as reducing the size of the stomach) when the body-mass index (身体质量指数) is more than 40. That is equivalent to a weight of 116 kilograms for a height of 1.60 meters. One should start earlier." Toplak said that prevention should begin in school. "Child obesity has a close relation with the time which children spend in front of TV sets."

单选题The word "quit" in Paragraph 2 is closest in meaning to

单选题The {{U}}commodities{{/U}} were all inspected by the bureau before shipment. A. vehicles B. cartons C. goods D. machines

单选题{{B}}第三篇{{/B}} The wonders which medical workers have already brought about in the diagnosis(诊断) and treatment of disease suggest that a time may come when the physician will be able to analyze most illnesses as soon as they start, and cure them before damage results. How soon this "golden age of healing" arrives will depend greatly on how close is the collaboration between research workers in medicine and those who work in the sciences on which medicine depends. The physician has long relied on the chemist for curative drugs, and on the physicist for diagnostic instruments and healing rays. In the one field new materials and in the other new devices are being produced in increasing numbers, helping to make imminent new miracles of medicine. The X-ray and the microscope have extended the vision of the medical observer until he can see through ten inches of living flesh or into a single tissue cell, yet similar but much more powerful tools still await development. Modern electrical devices enable him to listen to faint murmurings of the life processes, or to measure feeble currents arising from heart and brain and nerve; yet electrical body measurements are but little understood. Now newly discovered atomic rays are being brought to help him destroy malignant invaders of the human system, and there is every reason to believe that even more curative rays await discovery.

单选题Moderate Earthquake Strikes England A moderate earthquake struck parts of southeast England on 28 April, 2007, toppling chimneys from houses and rousing residents from their beds. Several thousand people were left without power in Kent County. One woman suffered minor head and neck injuries. "It felt as if the whole house was being slid across like a fun-fair ride," said the woman. The British Geological Survey said the 4.3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel, about 8.5 miles south of Dover and near the entrance to the Channel Tunnel. Witnesses said cracks appeared in walls and chimneys collapsed across the county. Residents said the tremor had lasted for about 10 to 15 seconds. "I was lying in bed and it felt as if someone had just got up from bed next to me," said Hendrick van Eck, 27, of Canterbury about 60 miles southeast of London. "I then heard the sound of cracking, and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down." There are thousands of moderate quakes on this scale around the world each year, but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magnitude quake struck the central England city of Birmingham. The country's strongest earthquake took place in the North Sea in 1931, measuring 6.1 on the Richter scale. British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain, including one in 1580 that caused damage in London and was felt in France. Musson predicted that it was only a matter of time before another earthquake struck this part of England. However, people should not be scared too mush by this prediction, Musson said, as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours before it takes place. This would allow time for people to evacuate and reduce damage to the minimum.

单选题While we don"t agree, we continue to be friends.

单选题Who was the first man to reach the summit of Mount Everest?

单选题The high-speed trains can have a major impact on our lives.A. effortB. problemC. concernD. influence

单选题Mary Mapes Dodge exercised considerable influence on children"s literature in the late nineteenth century.

单选题Silent and Deadly Transient ischemic attacks(TIAS), or ministrokes, result from temporary interruptions of blood flow to the brain. Unlike full strokes, they present symptoms lasting anywhere from a few seconds to 24 hours. Rarely do they cause permanent neurological damage, but they are often precursors of a major stroke. "Our message is quite clear, "says Dr. Robert Adams, professor of neurology at the Medical College of Georgia in August. "TIAS, while less severe than strokes in the short term, are quite dangerous and need a quick diagnosis and treatment as well as appropriate follow-up to prevent future injury. " Unfortunately, ministrokes are greatly underdiagnosed. A study conducted for the National Stroke Association indicates that 2.5~ of all adults aged 18 or older(about 4.9 million people in the U.S.)have experienced a confirmed TIA. An additional 1.2 million Americans over the age of 45, the study showed, have most likely suffered a ministroke without realizing it. These findings suggest that if the public knew how to spot the symptoms of stroke, especially ministrokes ,and sought prompt medical treatment, thousands of lives could be saved and major disability could be avoided. The problem is that the symptoms of a ministroke are often subtle and passing. Nonetheless, there are signs you can look out for: Numbness or weakness in the face, arm or leg, especially on one side of the body. Trouble seeing in one or both eyes. Confusion and difficulty speaking or understanding. Difficulty walking, dizziness or loss of coordination. Severe headache with no known cause. Along with these symptoms, researchers have identified some key indicators that increase your chances of having a full-blown stroke after a TIA: if you're over 60, have experienced symptoms lasting longer than 10 minutes, feel weak and have a history of diabetes. As with many diseases, you can help yourself by changing your lifestyle. The first things you should do are quit smoking, limit your intake of alcohol to no more than a drink or two a day and increase your physical activity. Even those who suffer from high blood pressure or diabetes can improve their odds—and minimize complications if they do have a stroke—by keeping their illness under control. If you experience any of the symptoms, your first call should be to your doctor. It could be the call that saves your life.

单选题The secretary is expected to explore ideas for post-war reconstruction of the area. A. investigate B. deny C. stress D. create

单选题Hybrid cars introduced by Toyota and Honda in the past few years have sold well, Hybrid engines offer greater mileage than petrol - only engines, and the batteries recharge themselves. Ford says it thinks such vehicles will help it meet planned new guidelines on vehicle emissions in the US. Hybrid cars run faster than petrol driven cars.A. RightB. WrongC. Not mentioned

单选题If you're like 67% of Americans, you're currently overweight or obese. If you're like 27%, your blood pressure is too high. If you're like a whopping 96% of the population. You may not be able to recall the last time you had a salad, since you're one of the hundreds of millions of Americans who rarely eat enough vegetables. And what you do eat, you don't burn off - assuming you're like the 40% of us who get no exercise. Most troubling of all, if you're like any parent of any child anywhere in the world, you may be passing your health habits to your children, which explains why experts fear that this generation of American kids may be the first ever to have a shorter life span than their parents do. Experts fear that this generation of American kids may have a shorter life span than their parents do because.A. American parents are too healthy to have a short life span.B. the health care facilities will decline in the coming years.C. American parents are passing their poor health habits to their children.D. American children do not have a good diet.

单选题The Doctor in America Self-employed private physicians who charge a fee for each patient visit have been the norm for American medical practice. Most physicians have a contract relationship with one or more hospitals in their community. They refer their patients as needed to the hospital, which usually charges according to the number of days a patient stays and the facilities - X-rays, operating rooms, tests -he or she uses.Some medical doctors are on salary. Salaried physicians may work as hospital staff members, or residents, who are often still in training. They may teach in medical schools, be hired by corporations to care for their workers or work for the federal government's Public Health Service. Physicians are among the best-paid professionals in the United States. In the 1980s, it was not uncommon for medical doctors to, earn incomes of more than $100, 000 a year. Specialists, particularly surgeons, might earn several times that amount. Physicians list many reasons why they deserve to be so well rewarded for their work. One reason is the long and expensive preparation required to become a physician in the United States. Most would-be physicians first attend college for four years, which can cost nearly $20, 000 a year at one of the best private institutions. Prospective physicians then attend medical school for four years. Tuition alone can exceed $10, 000 a year. By the time they have obtained their medical degrees, many young physicians are deeply in debt. They still face three to five years of residency (住院医生实习期)in a hospital, the first year as an apprentice physician. The hours are long and the pay is relatively low. Setting up a medical practice is expensive, too. Sometimes several physicians will decide to establish a group practice, so they can share the expense of maintaining an office and buying equipment. These physicians also take care of each other's patients in emergencies.Physicians work long hours and must accept a great deal of responsibility. Manymedical procedures, even quite routine ones, involve risk. It is understandable thatphysicians want to be well rewarded for making decisions which can mean the difference between life and death.

单选题 Continuing Medical Education There is increasing recognition of the need for health workers to continue their education throughout their careers. Not only do health workers themselves wish to improve their own skills and competence, but the introduction of new techniques and equipment and the changes taking place in health needs and health care policies necessitate continued training. The phrase "health care" is intended to mean not just curative treatment for the sick but the whole range of provision for promoting health and preventing disease. In virtually every situation some response to this need has been made, so continuing education does take place—even though it may in many instances be ineffective or insufficient. Continuing education may be initiated by the health workers themselves, by their supervisors, by the managers of the health system, or by other agencies such as professional associations, publishers, and drug companies. The form of the continuing education may be written materials (journals, books, advertisements), meetings, courses, supervisory visits, or a variety of other methods. With this diversity of approach it is not surprising that the effectiveness of the continuing education should be variable. So it is natural that in many countries there is a concern that more continuing education should be provided and that it should be more effective. The approach suggested that to achieve this aim is to develop a "system" of continuing education. This term needs some explanation as it is capable of being interpreted in many ways. A system is not the same thing as an organization that provides continuing education. It is much more than that. It is the sum of the educational activities, the organizational structure that supports and manages those activities, the management, and the external agencies involved in the provision of health care. The system should comprise a nationwide coordinated program in which technology and resources are optimally used.