介词加关系代词 介词加关系代词的用法？

介词加关系代词的用法？

在英语的定语从句中，介词加关系代词相当于一个关系副词，起一个关系副词的作用。

例句：

1.This is the house where Tom lived many years ago.

这是很多年前汤姆住过的房子。

where是关系副词，可换为 in which来引导。

This is the house in which Tom lived many years ago.

2.This is the farm where he worked.

这是他工作过的农场。

where是关系副词，可换为 in which来引导。

This is the farm on which he worked.

3.This is the reason why he didnt come to school.

这是他没来上学的原因。

why是关系副词，可换为 for which来引导。

This is the reason for which he didnt come to school.

介词放在句末时，who，that，which可省， 但介词在关系代词前时，只能用“介词+which/whom”结构。 含有介词的固定动词词组中，介词不可前置，只能放在原来的位置上。
介词放在句末时，who，that，which可省， 但介词在关系代词前时，只能用“介词+which/whom”结构。 含有介词的固定动词词组中，介词不可前置，只能放在原来的位置上。

介词加关系代词都等于哪些词？

“介词加关系代词”等于另外一个词，是出现在定语从句中的一种现象。“介词+关系代词”起一个关系副词的作用，相对于一个关系副词。

in/on/at/during/…+which=when

in/on/at/…+which=where

for+which=why

例句：

1. This is the factory in which he worked.

这是他曾经工作过的工厂。

in which=where

2.This is the farm on which he worked.

这是他曾经工作过的农厂。

on which=where

3.This was the reason for which he was late for school.

这是他为什么迟到的原因。

for which=why

介词加关系代词有哪些？

常见的有：in which, on which, of which, from which, at which., out of which, under which, above which, 等。

介词加关系代词介词遵循的原则？

介词和代词一起用时，介词置于代词前，如by oneself, after all

在句子成分中，介词+代词 一般可以作状语

We have twenty students in the club in all.

My mother often tells me to do things by myself.

Dont worry about him. After all , he has been an adult.

There are twenty volunteers in all talking part in the hand -in -hand activity.

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