定语从句中关系代词一般由Who或which引导，属性为人或者拟人用Who属性为物用which。那花样的定语从句，则是大道归一，推理过程。Where 用法推理1/6分步阅读

将一句话分成两个句子，主干句和跟从句

eg:我特别讨厌我遇见他的那个城市。

1 I really hate the city.我特别讨厌那个城市。

2I met him in the city.我在那个城市遇见他。

2/6

将两句合成一句话

I really hate the city I met him in thecity.

3/6

找出同类项，将后者同类the city找出，待用关系词代替

I really hate the city I met him in thecity.

4/6

合并同类项，选择关系词

相同的名词/代词为先行词，将后者同类词用关系词取代，属性为人或者拟人用Who属性为物用which。

I hate the city I met him in which.

关系词一般跟在先导词后面，整理为

I hate the city in which I met him.

5/6

where本身作为地点副词可以描述地点，为了精简，则in which可以替换为where。

简化为：

I hate the city where I met him

6/6

则关于地点的定语从句，如有“介词+which”可以用“where”代替，地点不等于where，必须“介词+which”

When 用法推理1/1

我都忘记你过来的日子了。

1分

我忘记日子了。

你在那个日子来的。

2合

I have forgot the day you came on the day.

I have forgot the day on which you came.

I have forgot the day when you came

则关于时间的定语从句，如有“介词+which”可以用“when”代替，时间不等于when，必须“介词+which”。

Whose 用法推理1/1

我有一条眼睛是蓝色的小狗。

1分

I have a dog.

A dog’s eyes are blue.

2合

I have a dog a dog’s eyes are blue

I havea dogwho’s eyes are blue

who的所有格为whose

则句子变成

I havea dogwhoseeyes are blue

Why 用法推理 1/1

我不理解他离开我的原因。

1分

我不理解原因。

他因为这原因离开我。

2合

I don’t understand the reason he left me for the reason.

I don’t understandthe reasonhe left me forwhich.

因Why可以描述原因，则句子变为

I don’t understandthe reasonhe left me why.

whom 用法推理1/1

我认识那个你喜欢的男孩。

1分：

I know the boy.

You like the boy.

2合

I know the boy you like the boy.

I knowthe boywho you like.

theboy处于句子宾语位置，则用who的宾格形式whom

则句子变为

I knowthe boywhom you like.

注意事项

地点不等于where，必须“介词+which”

时间不等于when，必须“介词+which”。

定语从句英语语法