问题
单项选择题
This selection leads one to believe that the Earth ______.
A．never gets hit by meteors
B．always gets hit by meteors
C．was hit by meteors some time in the past
D．may be bombarded by meteors in the near future
答案
参考答案：C
解析：[分析] 推断题型。 从Most meteors burn up in the Earth's atmosphere before they can strike the surface． The planet's active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it was formed．(大多数的流星在撞击地球表面之前就已在大气层中烧毁，而地球活跃的地质作用使得地球从其形成之时起就没留下以往那些曾遭受撞击的痕迹。)这两句中推知地球在过去还是遭受过流星撞击的，因此C为答案。