Question

【題目】— Why does the earth look blue in space?
— Because most of the earth's surface by water.
A.covers
B.is covered
C.cover
D.are covered

Answer 1

【答案】B
【解析】考查動(dòng)詞的語態(tài)。句意：-為什么在太空中，地球看上去是藍(lán)色的？-因?yàn)榈厍虻拇蟛糠值胤奖凰�覆蓋著。句子的主語是surface是謂語動(dòng)詞cover的承受者，句子用被動(dòng)語態(tài)，most ofthe earth’s surface表示單數(shù)含義，謂語動(dòng)詞用單數(shù)。故選B。