试题库在线考试题库-历年真题模拟试题及答案-考博英语在线试题测试中心-希赛网

合肥工业大学

Directions: Use 200-250 words to present your views on the topic below, using relevant reasons and examples to support them.“High-speed electronic communications media, such as electronic mail and television, tend to prevent meaningful and thoughtful communication.”

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For those playing the game of science, the method by which they ascertain what they believe is crucial. They have to evaluate data and arguments and decide for themselves on their validity. Scientists communicating to others have the task of convincing the hearers of the validity of their statements in terms of the data and their explanations of the data. They are not playing the game correctly if they win support by the strength of their personality or prestige. In the short run scientists may follow another on the basis of prestige, but this cannot continue indefinitely. It is up to the hearers to evaluate what the scientists say rather than accept it because they say it. And the culmination of this enterprise is the determination of whether the explanations account for the data observed. The relationship between scientific explanations and data helps to ensure the integrity of scientists. If their findings are important, they can be sure that their theories and data will be examined critically and new evidence will be attained.It is the system of data-based explanation that distinguishes science from dogma. Scientists have both the right and the responsibility to decide for themselves, on the basis of evidence at hand, the best explanation of a set of phenomena. On the other hand, dogma (religious, economic, political or social) depends on pronouncements by established authorities.

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For several years, scientists have been testing a substance called interferon(干扰素)，a 36 wonder drug that is proving to be effective in treating a variety of ailments, including virus infections, bacterial infections, and tumors. To 37 , the new drug has provoked no negative reaction of sufficient significance to 38 its use. But in spite of its success, last year only one gram was produced in the entire world.The reason for the 39 lies in the structure of interferon. A species of specific protein, the interferon produced from one animal species cannot be used in 40 another animal species. In other words, to treat human beings, only interferon produced by human beings may be used. The drug is produced by infecting white blood cells with a virus. Fortunately, it is so 41 that the amount given each patient per injection is very small.Unlike antibiotics, interferon does not attack germs directly. 42 , it makes unaffected cells resistant to infection, and 43 the multiplication of viruses within cells.As you might conclude, one of the most 44 uses of interferon has been in the treatment of cancer. Dr. Hans Strander, research physician at Sweden’s famous Karolinska Institute, has treated more than one hundred cancer patients with the new drug. 45 a group of selected patients who had 46 surgical procedures for advanced cancer, half were given conventional treatments and the other half were given interferon. The 47 rate over a three-year period was 70 percent among those who were treated with interferon as 48 with only 10 to 30 percent among those who has received the 49 treatments.In the United States, a large-scale project supported by the American Cancer Society is now under 50 . If the experiment is successful, interferon could become one of the greatest medical discoveries of our time.36. A. possible B. adequate C. potential D. capable37. A. time B. stage C. date D. period38. A. determine B. discourage C. decrease D. disclose39. A. uniqueness B. peculiarity C. feature D. scarcity40. A. treating B. producing C. operating D. handling41. A. potent B. slight C. obvious D. obscure42. A. However B. Moreover C. Hence D. Instead43. A. motivates B. prevents C. strikes D. eliminates44. A. restrictive B. dramatic C. probable D. crucial45. A. With B. For C. Among D. Within46. A. sustained B. endured C. prepared D. undergone47. A. existence B. treatment C. survival D. growth48. A. weighed B. balanced C. differentiated D. compared49. A. original B. conventional C. exceptional D. desirable50. A. way B. track C. course D. route

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In her long, but ultimately triumphant career, she has been forced to smuggle birth control supplies under her clothing.

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The majority of the time you will feel no pain. However, after each session you could possibly feel emotional, a mild headache, or fatigue.

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