单选题That player is eternally arguing with the referee.A. desperatelyB. constantlyC. eventuallyD. extensively

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.

单选题A famous scientist is trying to explain his new findings.A. elicitB. emulateC. eradicateD. elucidate

单选题Happiness A proverb allegedly (据说) from ancient China was widely spread in the West: "If you want to be happy for a few hours, go to get drunk; if you want the happiness to last three years, get married; if you want a lifetime happiness, take up gardening. " The reason for the last option is this: Gardening is not only useful; it helps you to identify yourself with nature, and thus brings you new joy each day besides improving your health. A research of a US university that I"ve read gives a definition of happiness as what makes a person feel comfortably pleased. To put it specifically, happiness is an active state of mind where one thinks one"s life is meaningful, satisfactory and comfortable. This should be something lasting rather than transitory. Lots of people regard it the happiest to be at leisure. But according to the study, it is not a person with plenty of leisure but one at work that feels happy, especially those busy with work having little time for leisure. Happiness does not spell gains one is after but a desire to harvest what one is seeking for. People often do not cherish what they already have but yearn for what they cannot get. That is somewhat like a man indulging in dreams of numerous lovers while reluctant to settle down with the woman beside him. Happiness is a game balancing between two ends—what one has and what one wishes for, i. e. , one"s dream and the possibility to realize it. The study comes to this conclusion: A happy man is one who aims high but never forgets his actual situation; one who meets challenges that tap his ability and potentiality; one who is proud of his achievements and the recognition given to him. He has self-respect and self-confidence; treasures his own identity and loves freedom. He is sociable and enjoys wide-range communication with others; he is helpful and ready to accept assistance. He knows he is able to endure sufferings and frustrations; he is sensible enough to get fun from daily chores. He is a man capable of love and passion.

单选题The word "While" in Line 4 from the bottom can best be replaced by

单选题According to the passage, the alarming increase in the rate of diabetes among children in the UK may partly be explained by the rise in

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}} Last Fourth of July, Pete, a 14-year-old boy, was enjoying the lit-up skies and loud booms from the fireworks being set off in his neighborhood. Suddenly, the evening took a terrible turn. A bottle rocket shot into his eye, immediately causing him terrible pain. His family rushed him to the emergency room for treatment. As a result of the injury, Pete developed glaucoma and cataracts. Today, Pete has permanent vision loss in his injured eye because of his bottle rocket injury. June is Fireworks Eye Safety Awareness Month, and through its Eye Smart campaign the American Academy of Ophthalmology wants to remind consumers to leave fireworks to professionals. "There is nothing worse than a Fourth of July celebration ruined by someone being hit in the eye with a bottle rocket," said Dr. John C. Hagan, clinical correspondent for the Academy and an ophthalmologist at Discover Vision Centers in Kansas City. "A safe celebration means letting trained professionals handle fire- works while you enjoy the show." According to the U. S. Consumer Product Safety Commission, more than 9,000 fireworks related injuries happen each year. Of these, nearly half are head-related in- juries, with nearly 30 percent of these injuries to the eye. One-fourth of fireworks eye injuries result in permanent vision loss or blindness. Children are the most common victims of firework abuse, with those fifteen years old or younger accounting for 50 percent of fireworks eye injuries in the United States. Dr. Hagan estimates that his practice sees more than 30 injuries each year from fireworks. Even fireworks that many people consider safe represent a threat to the eyes. For children under the age of five, apparently harmless sparklers account for one-third of all fireworks injuries. Sparklers can bum at nearly 2,000 degrees Fahrenheit.

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

单选题Sleep Sleep is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves predominating for the first few minutes. This is called stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain waves will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids as if you were looking at something occurring in front of you. This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep. It is during REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep-only to rise once again to the surface of near consciousness some 80 minutes later.

单选题The study shows that the longer you sleep each night, the' longer you'll live.

单选题Ethnic Tensions in Belgium Belgium has given the world Audrey Hepburn, Ren6 Magritte (surrealist artist), the saxophone (萨克斯管) and deep-fried potato chips that are somehow called French. But the story behind this flat, twice-Beijing-size country is of a bad marriage between two nationalities living together that cannot stand each other. With no new government, more than a hundred days after a general election, rumors run wild that the country is about to disappear. "We are two different nations, an artificial state. With nothing in common except a king, chocolate and beer," said Filip Dewinter, the leader of the Flemish Bloc, the extreme-right Flemish party. Radical Flemish separatists like Mr Dewinter want to divide the country horizontally along ethnic and economic lines: to the north, Flanders—where Dutch (known locally as Flemish) is spoken and money is increasingly made; to the south, French-speaking Wallonia, where today old factories dominate the landscape. The area of present-day Belgium passed to the French in the 18th century. Following the defeat of Napoleon in 1815, Belgium was given to the kingdom of the Netherlands, from which it gained independence as a separate kingdom in 1830. Since then, it has struggled for cohesion (结合). Anyone who has spoken French in a Flemish city quickly gets a sense of the mutual hostility that is part of daily life there. But there are reasons Belgium is likely to stay together, at least in the short term. The economies of the two regions are tightly linked, and separation would be a financial nightmare. But there is also deep resentment in Flanders that its much healthier economy must subsidize (补贴) the south, where unemployment is double that of the north. French speakers in the south, meanwhile, favor the status quo (现状). Belgium has made it through previous threats of division. Although some political analysts believe this one is different, there is no panic just now. "We must not worry too much," said Baudouin Bruggeman, a 55-year-old school-teacher. "Belgium has survived on compromise since 1930. You have to remember that this is Magritte"s country, the country of surrealism. Anything can happen."

单选题The sisters can't {{U}}tolerate{{/U}} each other.

单选题We should never Ucontent/U ourselves with a little knowledge only.

单选题Mom's Traffic Accidents They bicycling craze came in when we were just about at the right age to enjoy it. At first even "safety" bicycles were too dangerous and improper for ladies to ride,and they had to have tricycles. My mother had(I believe) the first female tricycle in Cambridge;and I had a little one,and we used to go out for family rides,all together;my father in front on a bicycle,and my poor brother Charles standing miserable on the bar behind my mother. I found it very hard work,pounding away on my hard tyres;a glorious, but not a pleasurable pastime. Then,one day at lunch,my father said he had just seen a new kind of tyre,filled up with air, and he thought it might be a success. And soon after that everyone had bicycles, ladies and all;and bicycling became the smart thing, and the lords and ladies had their pictures in the papers, riding along in the park, in straw boater hats. My mother must have fallen off her bicycle pretty often, for I remember seeing the most appalling cuts and bruises on her legs. But she never complained, and always kept these mishaps to herself. However,the great Mrs. Phillips,our cook,always knew all about them;as indeed she knew practically everything that ever happened. She used to draw us into the servants' hall to tell us privately: "Her Ladyship had a nasty fall yesterday; she cut both her knees and sprained her wrist. But don't let her know I told you. "So we never dared say anything. Similar little accidents used to occur when, at the age of nearly seventy, she insisted on learning to drive a car. She never mastered the art of reversing,and was in every way an unconventional and terrifying driver. Mrs, Phillips used then to tell us:" Her Ladyship ran into the back of a milk-cart yesterday;but it wasn't much hurt";or "A policeman stopped her Ladyship because she was on the wrong side of the road;but she said she didn't know what the white line on the road meant, so he explained and let her go on. "Mrs Phillips must have had an excellent Intelligence Service at her command,for the stories were always true enough.

单选题Smart Window Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch. "It took us a long time to figure out what a window really is," says Claes Granqvist. He"s a professor of solid-state physics at Uppsala University in Sweden. "It"s contact with the outside world. You have to have visual contact with the surrounding world to feel well." So, windows and natural light are important for improving the way people feel when they"re stuck indoors. Yet, windows are the weak link in a building when it comes to energy and temperature control. In winter, cold air leaks in. When it"s hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world. Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color. Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it"s completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark. One important feature that makes a smart window so smart is that it has a sort of "memory". All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different."

单选题The fuel tanks had a capacity of 140 liters.

单选题The horrible news really made us sad.A. attractiveB. terribleC. interestingD. serious

单选题Fruit and Vegetable Juices A European study has revealed that 100 percent fruit and vegetable juices are as effective as their whole fruit/vegetable counterparts in reducing risk factors related to certain diseases. The conclusion is the result of the study designed to question traditional thinking that 100 percent juices play a less significant role in reducing risk for both cancer and cardiovascular disease than whole fruits and vegetables. Juices are comparable in their ability to reduce risk compared to their whole fruit/vegetable counterparts, according to several researchers in the United Kingdom who conducted the literature review. The researchers analyzed a variety of studies that looked at risk reduction attributed to the effects of both fiber and antioxidants. As a result, they determined that the positive impact fruits and vegetables offer come not just from the fiber but also from antioxidants which are present in both juice and the whole fruits and vegetables. "When considering cancer and coronary heart diseases prevention, there is no evidence that pure fruit and vegetable juices are less beneficial than whole fruit and vegetables," the researchers said. The researchers added that the positioning of juices as being nutritionally inferior to whole fruits and vegetables in relationship to chronic disease development is "unjustified" and that policies, which suggest otherwise about fruit and vegetable juices, should be re-examined. The researchers who authored the paper suggest that more studies in certain area are needed to bolster their findings. "Although this independent review of the literature is not designed to focus on any particular 100 percent juice, it does go a long way in demonstrating that fruit and vegetable juices do play an important role in reducing the risk of various diseases, especially cancer and cardiovascular disease," said Sue Taylor. Her opinion is in agreement with the Juice Products Association, a non-profit organization not associated with this research. She added that appropriate amounts of juices should be included in the diet of both children and adults, following guidelines established by leading health authorities. Taylor also points to a large epidemiological study, published in the September 2006 issue of the Journal of Medicine, which found that consumption of a variety of 100 percent fruit and vegetable juices was associated with a reduced risk for Alzheimer"s disease. In fact, that study found that individuals who drank three or more servings of fruit and vegetable juices per week had a 76 percent lower risk of developing Alzheimer"s disease than those who drank juice less than once per week. The study was published in the Inter national Journal of Food Science and Nutrition (2006).

单选题The inconvenience to users and economic cost to the nation escalate rapidly.A. decreaseB. fallC. increaseD. decline

单选题Smoke particles and other air pollutants are often trapped in the atmosphere, thus forming smog.A. caughtB. burnedC. dirtiedD. covered