there is now considered to be no life on the Mars

问题描述:

there is now considered to be no life on the Mars
如何划句子成分

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.