GRE阅读备考复习中,我们还是需要多利用练习题来备考。这样我们不断的练习,才能够更熟练的掌握阅读高分的必备技巧,让我们在考试中有更好地发挥。具体的这些真题都有哪些呢?下面小编为大家整理了详细的内容,供大家参考!

  The finding that there were rock-melting temperatures on asteroids for sustained periods is puzzling: asteroids’ heat source is unknown, and unlike planet-sized bodies, such small bodies quickly dissipate heat. Rubin suggests that asteroids’ heat could have derived from collisions between asteroids. Skeptics have argued that a single impact would raise an asteroid’s overall temperature very little and that asteroids would cool too quickly between impacts to accumulate much heat. However, these objections assumed that asteroids are dense, solid bodies. A recent discovery that asteroids are highly porous makes Rubin’s hypothesis more plausible. When solid bodies collide, much debris is ejected, dissipating energy. Impacts on porous bodies generate less debris, so more energy goes into producing heat. Heat could be retained as debris fall back into impact craters, creating an insulating blanket.

  1. The passage suggests that one factor that has made it difficult to account for the temperatures once reached by asteroids is

  A:a miscalculation of the frequency of asteroid collisions

  B:a misconception about asteroids’ density

  C:a mistaken assumption about what the heat source of the asteroids was

  D:an underestimation of the rate at which small bodies lose heat

  E:an erroneous view of how asteroids were formed

  答案:B

  2. It can be inferred from the passage that Rubin disaGREes with skeptics mentioned in the passage about which of the following?

  A:Whether porous bodies generate less debris when struck than do solid bodies

  B:The temperatures asteroids would have to reach for their rocks to have melted

  C:The likely effect of impacts on asteroids’ temperatures

  答案:C

  以上就是关于“GRE阅读150道模拟练习题”的内容,希望通过上述内容的学习,大家能够更好地备考GRE阅读考试,在接下来的考试中取得更好的成绩。


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