Question

_______ from the moon, our earth, with water _______seventy percent of its surface, appears a b...

_______ from the moon, our earth, with water _______seventy percent of its surface, appears a blue ball A．Seen; covered B．Seeing; covering C．Seen; covering D．Seeing; covered

Answer 1

C

考查非谓语动词用法。第一空考查分词做状语，see与our earth构成被动关系，故使用过去分词的形式。第二空是with复合结构，water与cover构成主动关系，使用现在分词的形式。句意：从月球上看，由水覆盖着百分之70表面得地球好像是一只蓝色的球。故C正确。