问题描述： there is now considered to be no life on the Mars如何划句子成分 1个回答 分类：英语 2014-10-20 问题解答： 我来补答 there be句型是一个倒装句,主语是be后面的.正常语序是 No life is now considered to be there on the Mars这样就划分句子成分应该比较清晰了吧?No life 做主语is now considered to be 做谓语there 表语on the mars 做地点状语. 展开全文阅读
