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定语从句中的介词提前问题~

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宾语从句中介词提前与关系代词变关系副词有区别么? 还有宾语从句中介词提前是什么概念? 先谢谢大家了~
定语从句中的介词提前问题~
解题思路: 如下
解题过程:
同学,你好,你的问题应该是有关定语从句介词与关系代词关系的问题吧!
“介词+关系代词”的用法:
在定语从句中,当关系代词作动词短语或介词的宾语时,为了使关系代词与先行词的关系更加紧凑,可以将定语从句中的介词或动词短语中的介词提前放在关系代词前面,如:
Do you know the man with whom Mr Black talked just now?
He is the man of whom we are proud.
在使用“介词+关系代词”结构时要注意以下几个问题:
(1) 介词的确定
介词的确定应依据定语从句中动词短语的习惯性搭配或介词与先行词的搭配,如:
Who is the girl with whom you just shook hands?(shake hands with…是习惯性搭配)
He built a telescope through which he could study the skies.他做了架望远镜,通过这部望远镜他可以观察天体(through which 即through the telescope)。
注意:有些固定短语中的介词不能拆开移到关系代词前。如:
This is the watch which you’re looking for。
He is a kind of man whom you can safely depend on. 他是个你可以完全依赖的人。
(2)介词放在关系代词之前时,只用which, whom不用that, who。当关系代词指代人时,用whom,关系代词指代物时,用which,如:
Is this the pen with which you wrote the letter?
He wrote about 20 novels, of which this is the most successful.
This is the man from whom I learnt the news.
(3)、当表示时间、地点或原因的先行词放在从句中做状语时,也可以使用“介词+关系代词”的结构,一般情况下where=in which, why=for which, when = on/in which,如:
We can’t find the house where/in which we used to live.
Do you still remember the day when/on which we went to the beach?
注意:介词的选择由先行词与介词的搭配来确定,当先行词表示时间时,介词还可以使用in(在那年、月等),during(在…期间),by(到…为止)等,地点是station, bus stop等时也可以使用at 。
(4)、当先行词是物时,作定语的引导词whose +n = the +n.+ of which 或 of which + the+ n.,如:
He lives in the room of which the window faces south.
(5) from where 的用法
from where实际上属于“介词+副词”结构,但也可以引导定语从句,表示“从那里”,如:
He stood behind the curtain, from where he could see what was happening
outside.他站在窗帘后面,从那里他可以看到外面正在发生的事。
最终答案:略