Many craters on the earth’s surface were probably formed by very large meteorites _____.
问题1选项
A.smashing into the ground and exploding
B.which smashed into the ground and an explosion
C.when smashed into the ground was an explosion
D.they smashed into the ground and exploded
【选项释义】 A. smashing into the ground and exploding B. which smashed into the ground and an explosion C. when smashed into the ground was an explosion D. they smashed into the ground and exploded 【考查点】分词短语做后置定语 【解题思路】分析句子结构可知，meteorites为本句的逻辑主语，smash与逻辑主语构成主动关系，这里是分词短语做后置定语。所以选项A正确。 【干扰项排除】 B选项中an explosion不与smash构成并列关系； C选项是时间状语从句不与前文衔接构成相应逻辑； D选项不符合语法逻辑，一个句子中在没有关系词和连词的情况下不能存在两个谓语动词。 【句意】地球表面的许多陨石坑可能是由非常大的陨石撞击地面并爆炸形成的。
