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定语从句之专题一:从定语从句原理可以推导出定语从句的绝大部分规则
作者:高  伟  文章来源:本站原创  点击数  更新时间:2017-07-20  文章录入:admin  责任编辑:admin

 

2.关系副词可以替换为介词+which(代词)”。即,when/where/why(副词)=介词+which(代词)(注意:只有在定语从句中,when/where/why可以替换为介词+which”,在名词性从句和状语从句中不能替换。)

●I remember the day when /on which the heat wave started.

●This is the place where /in which we used to live.

●High taxation is the main reason why /for which governments fall.

3.当先行词是抽象地点或模糊时间,引导词常用where/when

表示抽象地点的先行词(如case, degree, point, stuation)后,一般用where(作状语)引导其定语从句,偶尔也用which(作主语/宾语)引导其定语从句。总之,抽象地点后的引导词,其实仍然是很规则的,只不过大多数都属于该用where的情况而已。

例句(抽象地点后,一般用where,偶尔也用which。)

●I can think of many cases ____you know nothing.  (填副词where

●I can think of many cases ____you know nothing about.  (填代词which/that/Ø

表示模糊时间的先行词(如,occasionstayinterval),经常用when(作状语)引导其定语从句。如,

The occasion when he is misunderstood often happen.他被误解的情况时常发生。

4.当先行词是表示时间/地点的介词短语时,引导词用介词+when/where。如,“from/to+where”“since/by+when”(对比:当先行词是表示时间/地点的名词时,引导词常用介词+which”when/where。)

●We last saw the man in 1999, since when we have never heard of him.

since when=since in 1999

●They stood near the north window, from where they could see the whole garden.

from where=from near the north window

这种结构并非特殊情况,回顾以前学过的特殊疑问句,也有介词+when/where”的用法。

where are you?你在哪里?where are you from?你来自哪里?

 

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