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定语从句中的介词提前和as的用法

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/04 22:52:16
定语从句中的介词提前和as的用法
比如说那些in which,of which的,还有定语从句什么时候用as
最好能说一下用法语法,举个例句分析,
关系代词whom或which在定语从句中作介词宾语时,介词可放在后面,也可提前构成介词+关系代词whom (先行词指人)/which(先行词指物)引导定语从句(这种方法更为正式).例:
Mary is the girl whom I borrowed a book from.= Mary is the girl from whom I borrowed a book.玛丽就是我向她借书的那个女孩.
Is this the room that/which he once lived in?= Is this the room in which he once lived?这是他曾经住过的房子吗?
常见的有以下几种情况:
1.where=in/on which 例:
This is the room where / in which he lives.这是他住的房间.
I can see the playground where / on which they do sports.我能看见他们进行运动的操场.
2.when= on/in/at which 例:
I still remember the year when/ in which I joined the Party.我仍然记得入党的那一年.
I still remember the day when/on which I joined the Party.我仍然记得入党的那一天.
I still remember the hour when/at which the rocket was launched.我仍然记得那个火箭发射的时刻.
3.why=for which 例:
This is the reason why / for which he was killed.这是他被杀害的原因.
但下列情况下介词不能提前:
⑴用who代替whom,用that代替which时,介词不能提前.例:
He's the boy who I learned English from.这是我向他学英语的男孩.
This should be the place that Tom sent the parcel to.这应是汤姆送包裹的地方.
⑵当whom、which省去时介词不能提前.例:
Is he the boy you went there with?他是和你一起去那儿的男孩吗?
This is the room he lived in.这是他住过的房间.
⑶当whom,which作为含有介词的动词短语的宾语时,介词一般来说不能拆开提前.例:
You're the very man whom I'm looking for.你正是我在找的那个人.
This is the program which he listened to.这就是他听过的节目.
再看下面几种结构