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单选题 Cosmetic Surgery Surgery that can improve the way a person looks is becoming more and more popular in the United States. This kind of surgery is called cosmetic surgery, and both men and women are turning to this treatment as a way of keeping their appearance young as well as keeping competitive (有竞争力的) in their jobs. Men especially are beginning to turn to face-lifts (面部拉皮手术), liposuction (taking fat out of the body), and implants (putting artificial parts into their bodies) to help them look younger. As companies downsize (编造) and move younger employees into higher positions, older employees in their late forties and early fifties feel the need to look and act younger in order to stay competitive. These operations are not without dangers, however. One young woman had an eye operation to get rid of the bags under her eyes. She described her experience as terrible. She said, "When he started cutting, I was fully awake. Even though he'd given me an injection near my eyes, I saw everything." She went on to explain, "I knew I had to keep still because of what he was doing. He was scraping (刮) away fat underneath my eyes. It took about ten minutes. After he finished, I felt I couldn't walk. I was so faint." Her troubles did not end after the operation for two weeks. Her eyes were swollen (肿胀的) and almost completely closed, and even dark glasses could not hide the side effects of the operation. Liposuction, taking fat out of the body, is probably the most popular cosmetic operation in the United States. It seems simple enough. First, a small cut is made over the place where the patient wants the fat removed. Next, a small pipe is put into the cut. A machine like a vacuum cleaner is then used to suck the fat out of the body. However, as one doctor explained, some problems call happen after the operation. He warned, "Irregular lumps and loose skin can reset from this operation. If it is not evenly done, liposuction can produce a very lumpy result." Patients often must have more liposuction to correct the problem.
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单选题Many cities have restricted smoking in public places.
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单选题You'll be agreeably surprised by its reasonable price.A. cheapB. expensiveC. standardizedD. same
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单选题Project Skylab was designed to demonstrate that a person can work and live in space for prolonged periods without ill effects.
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单选题The Origin of Language is a Mystery How men first learned to invent words is unknown; in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sounds to express thoughts and feelings, actions and things, so that they could communicate with each other; and that later they agreed upon certain signs, called letters, which could be combined to represent those sounds, and which could be written down. Those sounds, whether spoken, or written in letters we call words. The power of words, then, lies in their combinations—the things they bring up before our minds. Words become filled with meaning for us by experience; and the longer we live, the more certain words recall to us the glad and sad events of our past; and the more we read and learn, the more the number of words that mean something to us increases. Great writers are those who not only have great thoughts but also express these thoughts in words which appeal powerfully to our minds and feelings. This charming and telling use of words is what we call literary (文字的) style. Above all, the real poet is a master of words. He can convey his meaning in words which sing like music, and which by their position and association can move men to tears. We should therefore learn to choose our words carefully and use them accurately, or they will make our speech silly and rude.
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单选题World Heart Day Sunday was World Heart Day. The World Heart Federation and its member groups in more than one hundred countries organized the celebrations. The World Health Organization and other United Nations agencies provided support for the 1 . World Heart Day was first observed six years 2 . Organizers proposed the event as a way to help reduce the spread of heart disease. The World Heart Federation says heart 3 kills seventeen million people each year. The group urges people to be active and have a good, healthy diet. It also warns 4 activities known to increase a person"s risk of heart attack or stroke. Some of the warnings are directed at children. The World Heart Federation says about twenty-two million boys and girls under the age of five are obese-severely overweight. Children are normally energetic and active. 5 , two thirds of all children are not active enough. Such children greatly 6 their risk of becoming obese. They also increase their 7 of developing heart disease or other disorders. One message of World Heart Day is to eat right. Children 8 eat a healthy and balanced diet. Also, limit sugary drinks, sweets and eating between meals. The World Heart Federation urges parents to keep their children 9 . It says physical exercise helps to decrease the risk of obesity and 10 a child healthy. Obese children often become obese adults. 11 you believe your child is too heavy, talk with a health care provider. The World Heart Federation is also concerned about the effects of tobacco on young people. It says the younger someone begins to smoke, the 12 the chance of a health problem tied to smoking. Half of the young people who continue to smoke are 13 to die later in life from a smoking-related disease. The group says almost haft of all children live with a smoker. It says children who live with a 14 can breathe an amount of tobacco equal to more than two thousand cigarettes. And that is by the time they are five years old. The World Heart Federation also says parents should warn children not to be 15 by tobacco companies. And it says parents who smoke should try to stop.
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单选题The widespread use of X-rays poses the risk of overexposure to radiation.A. medicalB. spaciousC. experimentalD. general
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单选题It is {{U}}postulated{{/U}} that a cure for the disease will have been found by the year 2000. A.challenged B.assumed C.deducted D.decreed
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单选题Sprained(扭伤)Ankle One of the most common injuries teenagers and adults experience is a sprained ankle. A sprain occurs when the ligaments(韧带)of a joint are twisted(扭伤) and possibly torn. Ligaments are bands of fibers that hold the bones of a joint in position. A sprain can occur from a sudden twisting at the joint, or a stretching or tearing of the fibers of the ligaments. The injured area usually swells(肿胀) and becomes black and blue. Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can leave you rolling on the ground in pain with an ankle on fire! If you cannot walk without experiencing intense pain,you must seek medical help. If the pain is manageable,and you can walk,here are three words to help you remember how to treat yourself: ■ Elevate(抬高) ■ Cool ■ Bandage (打绷带 ) As soon as there is injury to that ligament, there will be a certain amount of bleeding under the skin. Once the blood pools around the damaged blood vessels, swelling occurs. The pressure from the swelling results in additional stress and tenderness to the region. In order to reduce the degree of swelling, lie down as soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce blood distribution and keep bleeding to a minimum,apply a cold pack. After 20 minutes, take the pack off,wait half an hour and then reapply. This can be done several times a day for a total of three days. Never leave a cold pack on for more than 20 minutes at a time. Reducing the temperature in that area for an extended period of time signals the body to increase blood flow to raise the body temperature! Therefore,one accidentally triggers more blood distribution to the affected area by leaving a cold pack on for too long! Finally,bandage the ankle. Be careful not to wind it too tightly;doing so can restrict blood flow and cause harm to the entire foot.
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单选题Most animal fats are saturated, containing more hydrogen than carbon, and do not spoil as easily as unsaturated fats.A. meltB. get used upC. go badD. liquify
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单选题By 1929, two years after the start of the "talkies", motion picture theaters in the United States were attracting 100 million patrons every week.A. ownersB. actorsC. customersD. critics
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单选题The National Committee {{U}}was composed of{{/U}} 22 manual workers and white-collar workers.
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单选题The five centenarians live in a very friendly community.
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单选题 阅读下面这篇短文,短文后列出7个句子,请根据短文的内容对每个句子做出判断。 {{B}} Stomach Ulcer{{/B}} 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 stomach3. 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 fluid. 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 pans 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.
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单选题Can we resume the meeting?
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单选题{{B}}第三篇{{/B}} {{B}} Late-night Drinking{{/B}} Coffee lovers beware. Having a quick "pick-me-up" cup of coffee late in the day will play havoc with you sleep. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that send people into a sleep. Melatonin levels normally start to rise about two hours before bedtime. Levels then peak between 2 a.m. and 4 a.m., before falling again. "It's the neurohormone that controls our sleep and tells our body when to sleep and when to wake," says Manrice Ohayon of the Stanford Sleep Epidemiklogy Research Center at Stanford University in California. But researchers in Israel have found that caffeinated coffee halves the body's levels of this sleep hormone. Lotan Shilo and a team at the Sapir Medical Center in Tel Aviv University found that six volunteers slept less well after a cup of caffeinated coffee than after drinking the same amount of decaf. On average, subjects slept 336 minutes per night after drinking caffeinated coffee, compared with 415 minutes after decaf. They also took half an hour to drop off--twice as long as usual-- and jigged around in twice as much. In the second phase of the experiment, the researchers woke the volunteers every three hours and asked them to give a urine sample. Shilo measured concentrations of a breakers were half those in decaf drinkers. The results suggest that melatonin concentrations in caffeine drinkers were half those in decaf drinkers. In a paper accepted for publication in Sleep Medicine, the researchers suggest that caffeine blocks production of the enzyme the drives melatonin production. Because it can take many hours to eliminate caffeine from the body, Ohayon recommends that coffee lovers switch to decal after lunch.
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单选题People of Burlington are being disturbed by the sound of bells. Four students from Burlington College of Higher Education are in the bell tower of the (51) and have made up their minds to (52) the bells nonstop for two weeks as a protest against heavy trucks which run (53) through thenarrow High Street. "They not only make it (54) to sleep at night, but they are (55) damage to our houses and shops of historical (56) , "said John Norris, one of the protesters. " (57) we must have these noisy trucks on the roads," said Jean Lacey, a biology student. "why don' t they build a new road that goes round the town? Burlington isn' t much more than a (58) village. Its streets were never (59) for heavy traffic. " Harry Fields also studying (60) said they wanted to make as much (61) possible to force the govemment officials to realize what everybody was having to (62) . "Most of them don' t (63) here anyway, "he said," they come in for meetings and that, and the Town Hall is soundproof, so they probably don' t (64) . It' s high time they realized the problem. "The fourth student, Liza Vemum, said she thought the public were (65) on their side, and even if they weren't they soon would be.
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单选题Her novel depicts an ambitious Chinese.
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单选题The research team needs to confer with the director before it begins its final report.
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单选题Ohayon advises coffee lovers
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