The word“meteorites”(Line 1，Para．3)refers to pieces of rock that__________．

A．move fast in outer space

B．have been found at a tourist centre

C．flash through space at a high speed

D．have fallen onto the Earth from space

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答案解析

细节题。题干意为“‘meteorites’(第三段第一行)是指那些__________ 的石头碎片。”根据本文第三段第一句话“Meteoroids that actually manage to reach the Earth are called meteorites．”可知，真的到达地面的流星被称为陨石，故D正确。

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