By whom is the book written?Since when have you lived here?知道的大虾帮忙分析一下句子成分.

题目

By whom is the book written?Since when have you lived here?知道的大虾帮忙分析一下句子成分.
重点 by 与 since 为什么要提前到句首?Thlanks.

答案

这是两个倒装疑问句,正常的句序是
whom is the book written by?
when have you lived here since?
那么从句子成分方面分析,两个句子都是特殊疑问句,由正常的主谓宾组成
by 和since置前是为了加强语气.