定语从句中的介词有哪些,及其用法.

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.
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:
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.
再看下面几种结构答案补充(一)介词+whose引导的定语从句
whose引导定语从句时,可出现创新句型:介词+whose引导定语从句.解这种定语从句时需弄清从句的动词与先行词、whose后边的名词及定语从句主语之间的关系,并发挥合理想象,不难发现其中正确的逻辑关系.例:
She is the girl to whose father I talked yesterday.她就是昨天我和其父亲谈话的女孩.
He is the boy for whose boss I work.他就是我为其老板打工的男孩.
(二)复杂介词+whom/which引导定语从句
I stay at the hotel at the back of which is a small garden.我住在后面有一座花园的旅馆.
(三)数词(不定量数词)/ 含所属关系名词+of whom/which引导定语从句.例: