单选题A notably short man, he plays basketball with his staff several times a week.

单选题Charges for local telephone calls are outrageous .

单选题Stomach Ulcer Stomach ulcers are the cause of severe pain for many people. Doctors have been able to help lessen the pain of ulcers. They could not cure them. Now doctors have discovered a cause of ulcers. This means they may have found a way to cure people who suffer from the stomach pain. Studies show that ten percent of the population will develop an ulcer at some time in their life. So a possible cure is good news for many people. Ulcers are wounds in the stomach that are similar to small cuts or tears. These wounds can harm the tissue in the stomach, the pipe that carries the food to the stomach or parts of the small intestines. Fluids in the stomach then increase the pain of an ulcer. How does a person know he or she has an ulcer? Doctors say most people with ulcers feel a burning pain in their chest or stomach. This pain often is called heartburn. It usually happens before eating or during the night. It causes some people to lose their desire to eat, or they are unable to keep food in their stomachs. Doctors believed that ulcers were caused by unusually strong stomach fluids, which damaged stomach tissue. Now they have discovered that most ulcers are caused by a bacterial organism called Hillico Bactor Pilorie or H Pilorie. H Pilorie bacteria are what make stomach produce extra stomach 1luid. Doctors found that they can kill the bacteria with medicines called antibiotics. Health experts say the discovery of a cure for ulcers can save thousands of millions of dollars in medical costs. They also believe curing ulcers will reduce the number of people who develop stomach cancer. The number of people with stomach cancer is very high in Japan, Southeast Asia and parts of Africa. Doctors say a person is more likely to get an ulcer if someone in his or her family has had one. In fact a person with the family history of ulcers is three times more likely to get one than other people. There are ways people can protect themselves from developing an ulcer. Doctors say it is more important to reduce the amount of strong fluids in the stomach. To do this, doctors say, people should not smoke cigarettes or drink alcohol. And they say people should reduce tension in their lives.

单选题Her mood can be gauged by her reaction to the most trivial of incidents

单选题The city has decided to do away with all the old buildings in its center.

单选题Scientists Develop Ways of Detecting Heart Attack German researchers have come up with a new generation of defibrillators (除颤器) and early-warning software aimed at offering heart patients greater protection from sudden death from cardiac arrest (心脏骤停). In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases are caused by disruption to the heart"s rhythm. Those most at risk are patients who have already suffered a heart attack, and for years the use of defibrillators has proved useful in diagnosing life-threatening disruptions to heart rhythms and correcting them automatically by intervening within seconds. These devices take on a range of functions, such as that of pacemaker. Heart specialists at Freiburg"s University Clinic have now achieved a breakthrough with an implanted defibrillator capable of generating a six-channel electrocardiogram (ECG) within the body. This integrated system allows early diagnosis of acute blood-flow problems and a pending (潜在的) heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed a new computer software that renders the evaluation of ECG data more precise. The overwhelming majority of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs. "Many of the current programs only take into account a linear correlation of the data. We are, however, making use of a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system," Hagen Knaf says. "In this way changes in the heart beats over time can be monitored and individual variations in patients taken into account." An old study of ECG data, based upon 600 patients who had suffered a subsequent heart attack, enabled the researchers to compare risks and to show that the new software evaluates the data considerably better.

单选题Health Care in the US Health care in the US is well-known but very expensive. Paying the doctor"s bill after a major illness or accident can cost hundreds of thousands of dollars. In the US, a person"s company, not the government, pays for health insurance. Employers have contracts with insurance companies, which pay for all or part of employees "doctors" bills. The amount that the insurance company will pay out to a patient differs wildly. It all depends on what insurance the employer pays. The less the boss pays to the insurance company, the more the employee has to pay the hospital each time he or she gets sick. In 2004, the average worker paid an extra US $558 a year, according to a San Francisco report. The system also means many Americans fall through the cracks (遭遗漏). In 2004, only 61 per cent of the population received health insurance through their employers, according to the report. The unemployed, self-employed, part-time workers and graduated students with no jobs were not included. Most US university students have a gap between their last day of school and their first day on the job. Often, they are no longer protected by their parents" insurance because they are now considered independent adults. They also cannot buy university health insurance because they are no longer students. Another group that falls through the gap of the US system is international students. All are required to have health insurance and cannot begin their classes without it. But exact policies (保险单) differ from school to school. Most universities work with health insurance companies and sell their own standard plan for students. Often, buying the school plan is required, but luckily it"s also cheaper than buying direct from the insurance company.

单选题The demand for videodisc systems is expected to be very great in future years.A. prosperousB. alternateC. comingD. retirement

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

单选题The Foreign Service is a branch of the Department of State.

单选题Movies Movies are the most popular form of entertainment for millions of Americans. They go to the movies to escape their normal everyday existence and to experience a life more exciting than their own. They may choose to see a particular film because they like the actors or because they have heard the film has a good story. But the main reason why people go to the movies is to escape. Sitting in a dark theater, watching the images on the screen, they enter another world that is real to them. They become involved in the lives of the characters in the movie, and for two hours, they forget all about their own problems. They are in a dream world where things often appear to be more romantic (浪漫的) and beautiful than in real life. The biggest "dream factories" are in Hollywood, the capital of the film industry. Each year, Hollywood studios make hundreds of movies that are shown all over the world. American movies are popular because they tell stories and they are well-made. They provide the public with heroes who do things the average person would like to do but often can't. People have to cope with many problems and much trouble in real life, so they feel encouraged when they see the "good guys" win in the movies.

单选题{{B}}第三篇{{/B}} {{B}} Jean Sibelius and His Music{{/B}} Jean Sibelius felt very much alone because he couldn't accept the music of that day. He believed that one should be able to make for oneself an ideal by reflection, and thought that modern music did not progress because it marked time without moving a step farther. When he began work on his Fifth Symphony, Europe and his beloved Finland were being ravaged by World War I. He wrote in September of 1914. "But I already begin to see dimly the mountain that I shall certainly ascend—God opens His door for a moment and His orchestra plays the Fifth Symphony." But from the very first he was full of doubts about this work. He wasn't sure whether or not he should have begun on the Fifth Symphony. He suffered a good deal for having persevered in composing symphonies at a time when practically all composers had turned to other forms of expression. The Fifth Symphony was completed late in 1915. It was performed on the composer's fiftieth birthday which was declared a national holiday. Sibelius conducted the concert but he was not satisfied with this new work. In October of 1916, he revised the symphony but a performance two months later still did not satisfy him.

单选题We must increase our Uoutput/U to meet the demand of the market.

单选题Weight of Americans Americans still have been gaining weight, although they have cut their average fat intake from 36 to 34 percent of their total diets in the past 15 years. And indeed, cutting fat to control or lose weight makes sense. Fat has nine calories per gram. Protein and carbohydrates (碳水化合物) which break down into amino acids and simple sugars respectively, have just four. Moreover, the body uses fewer calories to metabolize (新陈代谢) fat than it does to metabolize other foods. But cutting fat from your diet doesn"t necessarily mean your body won"t store fat. For example, between nonfat and regular cookies, there"s trivial difference in calories because manufacturers make up for the loss of fat by adding sugar. Low-fat crackers, soups and dressings can also be just as high in calories as richer versions. No matter where the calories come from, overeating will still cause weight gain. The calories from fat just do it a little quicker. A Wisconsin computer programmer who decided with a diet coach to eat only 40 grams of fat a day learned the lesson firsthand. He wasn"t losing weight. Then he showed his food diary to his coach and revealed he"d been eating half a pound of jelly beans a day. "They don"t have any fat," he explains. But they had enough sugar to keep him from shedding an ounce. Nonfat foods become add-on foods. When we add them to our diet, we actually increase the number of calories we eat per day and gain weight. That was born out in a Pennsylvania State University study. For breakfast, Prof. Barbara Rolls gave two groups of women yogurt that contained exactly the same amount of calories. One group"s yogurt label said "high fat"—the other, "low fat". The "low fat" yogurt group ate significantly more calories later in the day than the other group. "People think they"ve saved fat and can indulge themselves later in the day with no adverse consequences," says Richard Mattes, a nutrition researcher at Purdue University. "But when they do that, they don"t compensate very precisely, and they often end up overdoing it. "

单选题 WHO: Many Children's Deaths Preventable Over five million children die each year from disease, infections and accidents related (1) their environment although many of these deaths are largely preventable, says the World Health Organization. On Monday, the WHO asked governments and citizens around the world to take action' to create healthy (2) for children as it celebrated world Health Day. "The biggest threats to children's health lurk in the very (3) that should be safest- home, school and community," said Dr. Gro Harlem Brundtland, director--general of the WHO at the day's launch in New Delhi. India. "Every child has the right to (4) up in a healthy home. school and community. The future development of our children -- and of their world-- depends on (5) enjoying good health now. We have their future in our (6) . Now we must work more effectively together to (7) the risks from the environment which our children face, "Bmndfland said. This year's theme, "Healthy Environments for Children" focuses on the many dangers (8) by children in and around the places where they live and play. These include inadequate access to safe drinking (9) and sanitation, insect-borne diseases, air pollution, chemical hazards and injuries from traffic, falls, bums and drownings. Communities around the world organized events to promote awareness of children's health issues (10) included drawing contests for school children in Vietnam street plays in India, puppet shows in Namibia and professional lectures for policy makers in Germany and elsewhere. Activities also took (11) in cities across Canada on Monday, including Calgary Montreal, Halifax and Ottawa. Although children under five represent only 10 per cent of the world's population, they bear 40 per cent of the global disease (12) , says the WHO. And as much as one-third of the total burden of disease may be caused by environmental (13) . World Health Day has been celebrated on April 7th (14) 1950. Each year the WHO chooses a theme to highlight areas of particular concern. Last year's (15) More for Health, focused on promoting physical activity as part of healthy living. infection n.感染 sanitation n. (环境)卫生 hazard n. 危险,危害 drowning n.溺死 puppet n. 木偶

单选题Poor diets can lead to such diseases as rickets and scurvy.

单选题Every plant, animal, and human being needs water to ______ alive.A. stayB. makeC. runD. glow

单选题The little boy employed an unexpected method to get the result.A. adaptedB. adoptedC. assignedD. appointed

单选题Obesity Causes Global Warming The list of ills attributable to obesity keeps growing: Last week, obese people were accused of causing global warming. This conclusion comes from Shehion Jaeobson of the University of Illinois, U. S. , and a doctoral student, Laura McLay. Their study calculates how much extra gasoline is needed to haul fat Americans around. The answer, they say, is a billion gallons of gas per year. It means an extra 11 million tons of carbon dioxide. There has been calls for taxes on iunk food in recent years. U. S. economist Martin Schmidt suggests a tax on fast food delivered to people' s cars. "We tax cigarettes partly because of their health cost," Sehmidt said. "Similarly, leading a lazy lifestyle will end up costing taxpayers more. " U. S. political scientist Eric Oliver said his first instinct was to laugh at these gas and fast food arguments. But such claims are getting attention. At the U. S. Obesity Society' s annual meeting, one person correlated obesity with car accident deaths, and another correlated obesity with suicides. No one asked whether there was really a cause - and - effect relationship. "The funny thing was that everyone took it seriously," Oliver said. In a 1960s study, children were shown drawings of children with disabilities and without them, a drawing of an obese child. They were asked which they would want for a friend? The obese child was picked last. Three researchers recently repeated the study using college students. Once again, almost no one, not even obese people, liked the obese person. "Obesity was stigmatized, "the researchers said. But, researchers say, getting thin is not like quitting smoking. People struggle to stop smoking, and, in the end, many succeed. Obesity is different. But, not because obese people don' t care. Science has shown that they have limited personal control over their weight.

单选题The terrorists have chosen to play a deadly game with the civilian population.