1990年考研英语阅读真命题及其详细解析
10页1、1990年全国硕士研究生入学统一考试英语试题 阅读Section IIReading ComprehensionEach of the two passages below is followed by five questions. For each question there are four answers. Read the passages carefully and choose the best answer to each of the questions. Put your choice in the brackets on the left. (10 points)Text 1In May 1989, space shuttle “Atlantis” released in outer space the space probe “Megallan,” which is now on her 15-month and one-billion-kilometer flight to Venus. A new phase in space exploration ha
2、s begun.The planet Venus is only slightly smaller than Earth; it is the only other object in the solar system, in fact, that even comes close to earths size. Venus has a similar density, so it is probably made of approximately the same stuff, and it has an atmosphere, complete with clouds. It is also the closest planet to earth, and thus the most similar in distance from the sun. In short, Venus seems to justify its long-held nickname of “earths twin.”The surface temperature of Venus reaches som
3、e 900F. Added to that is an atmospheric pressure about 90 times Earths: High overhead in the carbon dioxide (CO2) that passes for air is a layer of clouds, perhaps 10 to 20 miles thick, whose little drops consist mostly of sulfuric acid (H2SO4). Water is all but nonexistent.Born with so many fundamental similarities to earth, how did Venus get to be so radically different: It is not just an academic matter. For all its extremes, Venus is a valuable laboratory for researchers studying the weather
4、 and climate of earth. It has no earths oceans, so the heat transport and other mechanisms are greatly simplified. In addition, the planet Venus takes 243 earth-days to turn once on its axis, so incoming heat from the sun is added and distributed at a more leisurely, observable pace.一、词汇1shuttlen. 返汽车(列车,飞机);航天飞机,航天器2releasev. 放出,释放3.probe n. 探测4.phasen. 阶段5.density n. 密度6.approximately ad. 大概,大约7.stuffn. 材料,东西8.passes for被当成9.sulfurica. 硫的10. acidn. 酸性物质,酸11.axisn. 轴(线)12.leisurelyad. 慢慢地,悠然地二、
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