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海南专升本-介词+关系代词的用法
大家好，海南奥赛小编又来给大家讲新的知识啦~
介词+关系代词的结构是一个较为复杂的问题，初学英语者对此往往感到棘手。因此，下面仅就几种常见的介词+关系代词的结构浅析如下。
1、介词+which在定语从句中分别作时间、地点和原因状语
介词+which在关系分句中分别作时间，地点和原因状语，代替相应的关系副词when，where和why。
I still remember the day on which (=when)I first came to school. 我仍然记得初来学校的那一天。
The factory in which (=where) I work is a large one. 我工作的工厂是一个大厂子。
This is the reason for which(=why)he was put in prison. 这就是他为什么被关起来的原因。
2、介词+which(指物)/whom(指人)在定语从句中作地点状语
介词+which(指物)/whom(指人)在关系分句中作地点状语，表示存在关系，关系分句主谓常须倒置。
They arrived at a farm house in front of which sat a small boy.他们来到一处农舍，前边坐着一个小孩。
I saw a man, on the head of whom stood a bird.我看见一个人，他的头上站着一只鸟。
3、不定代词或数词+of+which(指物)/whom(指人)，在定语从句中作主语
不定代词或数词+of+which(指物)/whom(指人)，在关系分句中作主语，说明整体中的部分。
China has a lot of islands, one of which is Taiwan.中国有许多岛屿，其中之一是台湾。
There are a lot of students here，none of whom like the film.这里有许多学生，他们之中无人喜欢这个电影。
4、介词+which(指物)/whom(指人)，在关系分句中作目的、方式或地点状语
这种结构中的介词一般受动词或介词后的名词所制约。
Could you tell me for whom youve bought this coat?你能告诉我这件衣服是给谁买的吗?
5、介词+which(指物)/whom(指人)，用于被动结构的关系分句中，作状语，说明动作的发出者。
The wolf by which the sheep was killed was shot. 伤害羊的那只狼被打死了。
The man by whom the wolf was shot was a good hunter. 打死狼的那人是一个好猎手。
6、名词+of which，代替whose+名词，在关系分句中作定语。
I saw some trees, the leavesof which (=whose leaves)were black with disease.我看见一些树，它们的叶子因生病而发黑。
He mentioned a book, the titleof which (=whose title )Ive forgotten.他提到一本书，书的名我忘了。
7、介词+which(指物)/whose(指人)，修饰后边的名词。
The driver was the man from whose room she had stolen the maps.司机就是她从他的房间偷走地图的那个人。
比较：介词+which+不定式。此种用法多见于正式文体中，相当于一个带有主语和谓语的定语从句。
She had only 1.87 with which to buy(=she could buy)Jim, her husband, a present.她只有一元八角七分钱，用这些钱给他的丈夫吉姆买一件礼物。
At last he had something about which to write (=he could write) home. 他终于有给家写信的内容了。
