题目内容
Better Control of TB Seen If a Faster Cure Is Found The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis(结核病). Most times, the infection remains inactive(不活跃的). But each year about eight million people develop active cases of TB, usually in their lungs. Two million people die of it. The disease has increased with the spread of AIDS and drug - resistant forms of tuberculosis. Current treatments take at least six months. Patients have to take a combination of several antibiotic(抗生素)drugs daily. But many people stop as soon as they feel belter. Doing that can lead to an infection(传染病)that resists treatment. Public health experts agree that a faster-acting cure for tuberculosis would be more effective. Now a study estimates just how effective it might be. A professor of international health at Harvard University led the study. Joshua Salomon says a shorter treatment program would likely mean not just more patients cured. It would also mean fewer infectious patients who can pass on their infection to others. The researchers developed a mathematical(数学的)model to examine the effects of a two -month treatment plan. They tested the model with current TB conditions in Southeast Asia. The scientists found that a two-month treatment could prevent about twenty percent of new cases. And it might prevent about twenty-five percent of TB deaths. The model shows that these reductions would take place between two thousand twelve and two thousand thirty. That is, if a faster cure is developed and in wide use by two thousand twelve. The World Health Organization developed the DOTS program in nineteen ninety. DOTS(短 期直接观察治疗)is Directly Observed Treatment, Short-course. Health workers watch tuberculosis patients take their daily pills to make sure they continue treatment. Earlier this year, an international partnership of organizations announced a plan to expand the DOTS program. The ten-year plan also aims to finance research into new TB drugs. The four most common drugs used now are more than forty years old. The Global Alliance for TB Drug Development(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses. The long-term goal of the Global Alliance for TB Drug Development is a treatment that could work______.
查看答案
搜索结果不匹配？点我反馈
更多问题
Most Adults in U. S. Have Low Risk of Heart Disease More than 80 percent of U. S. adults have a less than 10-percent risk of developing heart disease in the next 10 years, according to a report in the Journal of the American College of Cardiology(心脏病学). Just 3 percent have a risk that exceeds 20 percent. " I hope that these numbers will give physicians, researchers, health policy analysts, and others a better idea of how coronary(心脏冠状动脉的)heart disease is distributed in the U. S. population," lead(带头的)author Dr. Earl S. Ford, from the Centers for Disease Control and Prevention in Atlanta, said in a statement. The findings are based on analysis of data from 13 ,769 subjects, between 20 and 79 years of age, who participated in the Third National Health and Nutrition(营养的供给)Examination Survey from 1988 to 1994. Overall, 82 percent of adults had a risk of less than 10 percent, 15 percent had a risk that fell between 10 to 20 percent and 3 percent had a risk above 20 percent. The proportion of subjects in the highest risk group increased with advancing age, and men were more likely than women to be in this group. By contrast, race or ethnicity(种族划分)had little effect on risk distributions. Although the report suggests that most adults have a low 10 -year risk of heart disease, a large proportion have a high or immediate risk, Dr. Daniel S. Berman, from Cedars-Sinai Medical Center in Los Angeles, and Dr. Nathan D. Wong, from the University of California at Irvine, note in a related editorial. Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward, they add. What’s the percentage that 15% of the U. S. adults had a risk of developing heart disease in the next 10 years
Better Control of TB Seen If a Faster Cure Is Found The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis(结核病). Most times, the infection remains inactive(不活跃的). But each year about eight million people develop active cases of TB, usually in their lungs. Two million people die of it. The disease has increased with the spread of AIDS and drug - resistant forms of tuberculosis. Current treatments take at least six months. Patients have to take a combination of several antibiotic(抗生素)drugs daily. But many people stop as soon as they feel belter. Doing that can lead to an infection(传染病)that resists treatment. Public health experts agree that a faster-acting cure for tuberculosis would be more effective. Now a study estimates just how effective it might be. A professor of international health at Harvard University led the study. Joshua Salomon says a shorter treatment program would likely mean not just more patients cured. It would also mean fewer infectious patients who can pass on their infection to others. The researchers developed a mathematical(数学的)model to examine the effects of a two -month treatment plan. They tested the model with current TB conditions in Southeast Asia. The scientists found that a two-month treatment could prevent about twenty percent of new cases. And it might prevent about twenty-five percent of TB deaths. The model shows that these reductions would take place between two thousand twelve and two thousand thirty. That is, if a faster cure is developed and in wide use by two thousand twelve. The World Health Organization developed the DOTS program in nineteen ninety. DOTS(短 期直接观察治疗)is Directly Observed Treatment, Short-course. Health workers watch tuberculosis patients take their daily pills to make sure they continue treatment. Earlier this year, an international partnership of organizations announced a plan to expand the DOTS program. The ten-year plan also aims to finance research into new TB drugs. The four most common drugs used now are more than forty years old. The Global Alliance for TB Drug Development(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses. Which of the following statements is NOT right in Paragraph 2
Ants as a Barometer of Ecological Change At picnics, ants are pests. But they have their uses. In industries such as mining,farming and forestry, they can help gauge the health of the environment by just crawling around and being antsy. It has been recognized for decades that ant—which are highly sensitive to ecological change—can provide a near-perfect barometer of the state of an ecosystem. Only certain species, for instance, will continue to thrive at a forest site that has been cleared of trees. 【B1】______ And still others will move in and take up residence. By looking at which species populate a deforested area, scientists can determine how "stressed" the land is. 【B2】______Ants are used simply because they are so common and comprise so many species. Where mine sites are being restored, for example, some ant species will recolonize the stripped land more quickly than others. 【B3】______Australian mining company Capricorn Coal Management has been successfully using ant surveys for years to determine the rate of recovery of land that it is replanting near its German Creek mine in Queensland. Ant surveys also have been used with mine-site recovery projects in Africa and Brazil, where warm climates encourage dense and diverse ant populations. "We found it worked extremely well there, " says Jonathan Majer, a professor of environmental biology. Yet the surveys are perfeetlv suited to climates throughout Asia, he says, because ants are so common throughout the region. As Majer puts it; "That’s the great thing about ants. " Ant surveys are so highly-regarded as ecological indicators that governments worldwide accept their results when assessing the environmental impact of mining and tree harvesting. 【B4】______ Why not Because many companies can’t afford the expense or the laboratory time needed to sift results for a comprehensive survey. The cost stems, also, from the scarcity of ant specialists. 【B5】______A This allowed scientists to gauge the pace and progress of the ecological recovery.B Yet in other businesses, such as farming and property development, ant surveys aren’t used widely.C Employing those people are expensive.D They do this by sorting the ants, counting their numbers and comparing the results with those of earlier surveys.E The evolution of ant species may have a strong impact on our ecosystem.F Others will die out for lack of food. 【B1】
Stage Fright Fall down as you come onstage. That’s an odd trick. Not recommended. But it saved the pianist Vladimir Felts man when he was a teenager back in Moscow. The veteran cellist Mstislav Rostropovich tripped him purposely to cure him of pre-performance panic, Mr. Felts man said, All my fright was【C1】______. I already fell. What else could happen" Today, music schools are addressing the problem of anxiety in classes that 【C2】______ with performance techniques and career preparation. There are a variety of strategies that musicians can learn to【C3】______stage fright and its symptoms; icy fingers, shaky limbs, racing heart, blank mind. Teachers and psychologists offer wide-ranging advice, from basics like learning pieces inside out, 【C4】______mental discipline, such as visualizing a performance and taking steps to relax. Don’t【C5】______that you’re jittery,they urge; some excitement is natural, even necessary for dynamic playing. And play in public often, simply for the experience. Psychotherapist Diane Nichols suggests some【C6】______for the moments before performance, "Take two deep abdominal breaths, open up your shoulders, then smile," she says. "And not one of these ’ please don’t kill me’ smiles. Then【C7】______three friendly faces in the audience, people you would communicate with and make music to, and make eye contact with them. " She doesn’t want performers to think of the audience【C8】______a judge. Extreme demands by mentors or parents are often at the【C9】______of stage fright,says Dorothy Delay, a well-known violin teacher. She tells other teachers to demand only what their students are able to achieve. When Lynn Harrell was 20, he became the principal cellist of the Cleveland Orchestra, and he suffered extreme stage fright. "There were times when I got so【C10】______I was sure the audience could see my chest responding to the throbbing. It was just total panic. I came to a 【C11】______where I thought,If I have to go through this to play music, I think I’m going to look for another job." Recovery, he said, involved developing humility—recognizing that 【C12】______his talent, he was fallible,and that an imperfect concert was not a disaster. It is not only young artists who suffer, of course. The legendary pianist Vladimir Horowitz’s nerves were famous. The great tenor Franco Corelli is another example. "They had to push him on stage,’’ Soprano Renata Scotto recalled. 【C13】______, success can make things worse. "In the beginning of your career, when you’re scared to death, nobody knows who you are, and they don’t have any【C14】______, "Soprano June Anderson said. "There’s【C15】______to lose. Later on, when you’re known, people are coming to see you, and they have certain expectations. You have a lot to lose. Anderson added, "I never stop being nervous until I’ve sung my last note. " 【C9】
微信支付 
支付宝支付