这里for引导的是什么从句?为什么for doing可以和不定式to stop……并列?在结构上看起来有些奇怪。
for which可以引导原因状语从句吗?如果可以,which是名词性从句中的连接代词而不是定语从句中的关系代词对吗?
For controlling the movement of the vehicles or to stop them , efficient braking system is a necessary for a vehicle.
参考译文:为了控制车辆的运动或使它们停下来,有效的制动系统是车辆所必需具备的。
For controlling the movement of the vehicles or to stop them
【目的状语】// , efficient braking system【主语】// is 【系动词】//a necessary for a vehicle【表语】.
备注(1):以上句子根本不存在原因状语从句,只有1个介词短语(for controlling the movement of the vehicles )和1个不定式(to stop them)作目的状语。
备注(2):for controlling the movement of the vehicles 为介词短语作目的状语修饰后面句子谓语。
备注(3):to stop them 为动名词不定式作目的状语修饰后面句子谓语。
for which在以下句子可以引导定语从句,并在定语从句作原因状语
This is the reason for which Tom was late for school.【关系代词which定语从句,并在定语从句作介词for宾语,构成介词短语作原因状语】
=This is the reason why Tom was late for school.【关系副词why引导定语从句并在定语从句作原因状语】
备注:引导原因状语从句是由从属连词as/since/because引导的
Tom didn't go to school because he was ill.【从属连词because引导原因状语从句用来作主句的原因状语】
如果觉得我的回答对您有用,请随意打赏。你的支持将鼓励我继续创作!