单选题What can you do to ensure that you will stay healthy?A. be assuredB. insistC. proveD. secure

单选题{{B}}第二篇{{/B}} {{B}} Need for Emphasis on Treatment{{/B}} AIDS programs in developing countries put little emphasis on treatment, the World Health Organization said Tuesday, asking for more small community-based clinics to be opened to treat HIV-infected people. An estimated 36 million to 46 million people are living with AIDS, two-thirds of them in Africa, but only 440,000 people in developing countries were receiving treatment by the end of 2003, the UN health agency said in its annual report. "Without treatment, all of them will die a premature and in most cases painful death," the WHO said in the t69-page World Health Report. WHO Director General Lee Jong wook said community-based treatment should be added to disease prevention and care for suffers in AIDS programs. "Future generations will judge our time in large part by our response to the AIDS disease," Lee said. "By tackling it decisively we will also be building health systems that can meet the health needs of to- day and tomorrow. This is a historic opportunity we cannot afford to miss, "he adds. Antiretroviral drugs enable people hit by AIDS to live longer. The annual cost of treatment, which was about $ 10,000 when the drugs were first developed, has dropped to about $150. Treatment programs also help AIDS prevention efforts, the report said, citing great demands for testing and counseling where treatment has been made available. Good counseling in turn leads to more effective prevention in those who are uninfected, and significantly reduces the potential for HIV carriers to pass on the infection, the report said. Since its discovery in 1980s, more than 20 million have died of AIDS, mostly in poor countries.

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，清根据短文的内容从4个选项中选择1个最佳答案。 {{B}} A Biological Clock{{/B}} Every living thing has what scientists call a biological clock that controls behavior. The biological clock{{U}} (1) {{/U}}plants when to form flowers and when the flowers should open. It tells insects when to{{U}} (2) {{/U}}the protective cocoon (防护卵袋) and fly away, and it tells animals and human beings when to eat, sleep and wake. Events outside the plant and animals{{U}} (3) {{/U}}the action of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur because of the{{U}} (4) {{/U}}of hours of daylight. In the short{{U}} (5) {{/U}}of winter, its fur becomes white. The fur becomes gray brown in{{U}} (6) {{/U}}in the longer hours of daylight in summer. Inner signals control other{{U}} (7) {{/U}}clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration{{U}} (8) {{/U}}twice each year, Birds{{U}} (9) {{/U}}from flying become restless when it is time for the trip,{{U}} (10) {{/U}}they become calm again when the time of the flight has ended. Scientists say they are beginning to learn which{{U}} (11) {{/U}}of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain{{U}} (12) {{/U}}to control the timing of some of our actions. These{{U}} (13) {{/U}}tell a person when to wake, when to{{U}} (14) {{/U}}, and when to seek food. Scientists say there probably are other biological clock cells that{{U}} (15) {{/U}}other body activities.

单选题The parents always restrain their daughter from swimming in the nearby pool.A. allowB. reduceC. preventD. confine

单选题Respect for life is a cardinal principle of the law.

单选题A greatdeal has been done to remedy the situation.

单选题Hitchhiking When l was in my teens(十几岁) and 20s, hitchhiking was a main form of long-distance trans port. Tire kindness or curiosity of strangers (51) me all over Europe, North America, Asia and southern Africa. Some of the lift-givers became friends, many provided hospitality (52) the road. Not only did you find out much more about a country than (53) traveling by train or plane, but also there was that element of excitement about where you would finish up that night. Hitchhiking featured importantly in Western culture. It has books and songs about it. So what has happened to (54) ? A few years ago, I asked the same question about hitchhiking in a column on a newspaper. (55) of people from all over the world responded with their view on the state of hitchhiking. "If there is a hitchhiker's (56) it must be Iran," came one reply. Rural Ireland was recommended as a friendly place for hitchhiking, (57) was Quebec, Canada "if you don't mind being berated (严厉指责) for not speaking French. But while hitchhiking was clearly still alive and well in many parts of the world, the (58) feeling was that throughout much of the west it was doomed (消亡). With so much news about crime in tire media, people assumed that anyone on the open road without the money for even a bus ticket must present a danger. But do we (59) to be so wary both to hitchhike and to give a lift? In Poland in the 1960s, (60) a Polish woman who e-mailed me, " the authorities introduced tire Hitchhiker's Booklet. The booklet contained coupons for drivers, so each time a driver (61) somebody, he or she received a coupon. At the end of the season, (62) who had picked up the most hikers were rewarded with various prizes. Everybody was hitchhiking then. " Surely this is a good idea ['or society. Hitchhiking would increase respect by breaking down (63) between strangers. It would help fight (64) warming by cutting down on fuel consumption as hitchhikers would be using existing fuels. It would also improve educational standards by delivering instant (65) in geography, history, polities and sociology.

单选题The ATMs enable bank customers to access their money 24 hours a day and seven days a week ______ ATMs are located.A. whereverB. wheneverC. howeverD. whatever

单选题Mary has derived a good deal of benefit from her job.

单选题According to the last paragraph, tissue’s lower exposure to alcohol

单选题I don't feel {{U}}secure{{/U}} when I am alone in the house.

单选题下面有3篇短文后有5道题。请根据短文内容，为每题定1个最佳选项。{{B}}第一篇{{/B}} Heat and Health Extremely hot weather is common in many parts of the world. Although hot weather just makes most people hot, it can cause medical problems and death. Health experts say that since the year 1900, extremely hot weather has killed more people in the United States than any other natural event. One year—the unusually hot summer of 1980—heat caused about 1,700 deaths in the United States. In 1995, more than 600 people died in a similar heat wave in one city—Chicago. To measure extreme heat, government weather experts have developed the Mean Heat Index. It measures the average of how hot it is felt all day on an extremely hot day. Experts say it is the total heat of a hot day or several hot days that can affect health. Several hot days are considered a heat wave. Experts say heat waves often become deadly when the nighttime temperature does not drop much from the highest daytime temperature. The most common medical problem caused by hot weather is heat stress. Usually, it also is the least severe. For most people, the only result of heat stress is muscle pain. The pain is a warning that the body is becoming too hot. Doctors say drinking water will help the pain disappear after the body again has the right amounts of water and salt. For some people, however, the result is much more serious. For example, doctors say some people face a greatly increased danger from heat stress. These people have a weak or damaged heart, high blood pressure, or other problems of the blood system. Severe heat can help cause a heart attack or stroke. Health experts say this is the most common cause of death linked to hot weather.

单选题He shifted his position a little in order to (alleviate) the pain in his leg.

单选题It's tough looking for a job these days.A. differentB. digitalC. difficultD. direct

单选题The prince rounded up some loyal followers.

单选题Warm People Likely to Keep Cold at Bay Staying positive through the cold season could be your best defense against getting ill, new study findings suggest. In an experiment that exposed healthy volunteers to a cold or flu virus, researchers found that people with a generally sunny disposition were less likely to fall ill. The findings, published in the journal Psychosomatic Medicine, build on evidence that a "positive emotional style" can help ward off the common cold and other illnesses. Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose. "People with a positive emotional style may have different immune responses to the virus," explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh. "And when they do get a cold, they may interpret their illness as being less severe. " Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold, but some questions remained as to whether the emotional trait itself had the effect. For the new study, the researchers had 193 healthy adults complete standard measures of personality traits, self-perceived health and emotional "style". Those who tended to be happy, energetic and easy-going were judged as having a positive emotional style, while those who were often unhappy, tense and hostile had a negative style. The researchers gave them nasal drops containing either a cold virus or a particular flu virus. Over the next six days, the volunteers reported on any aches, pains, sneezing or congestion they had, while the researchers collected objective data, like daily mucus production. Cohen and his colleagues found that based on objective measures of nasal woes, happy people were less likely to develop a cold.

单选题He wore a shabby thin overcoat in the cold winter so that he fell ill.

单选题The expedition reached the {{U}}summit{{/U}} at 10:30 that morning. A. bottom of the mountain B. foot of the mountain C. top of the mountain D. starting point

单选题California, the first city on the American continent, reached its peak of development and power about AD 1100.A. summitB. tipC. heightD. apex

单选题Bathing in the sea in England a hundred years ago was not quite the light-hearted amusement that it is today. There are no running down from the hotel to the beach in a bath robe(长袍), no sunbathing, or lying about on the sands in bathing-dresses after the dip. Everything had to be done in an orderly and extremely polite manner. Mixed bathing was not allowed anywhere. Men and women each had their separate part of the beach, and they were not supposed to meet in the water. Bathing clothes were also closely controlled. Men usually wore simple bathing drawers and no more, but women were obliged to wear thick, cumbersome woolen garments that covered them completely from head to foot. These satisfied the demands of modesty, but they must have been extremely uncomfortable for swimming. Even thus decently covered, women were not supposed to show themselves on the beach while in bathing attire(浴衣). They had to wait their turn for a bathing machine, a sort of wooden cabin on wheels which was drawn right down to the water's edge by horses. On its seaward side a sort of hood or canopy(罩盖)stretched outwards and downwards over the water, completely hiding the bather until she was actually in the sea. There was a bathing woman in attendance, part of whose duty was to dip, in other words, to seize the bather as soon as she emerged and dip her forcibly under water two or three times. This was supposed to be for the benefit of her health, and no doubt it was all right in the hands of the gentle. But most bathing women were the reverse of gentle, and to be dipped by them must have been a strenuous form of exercise.