by which用法请高手指点一下相关的语法知识,及例子.

题目

by which用法请高手指点一下相关的语法知识,及例子.
people are reluctant to go back to develop thermal power station by which the environment will be badly polluted.中的by which用法为何,及例子.

答案

这是定语从句,thermal power station （热电站）是先行词,which是引导词,后面的从句原来的句序是the environment will be polluted by thermal power station ,by 提前,就变成了by which,by也可以不提前.另外的例子...