UC知道悬赏100分！急求准确" which "引导的定语从句，前面有“代词”的专业详解！
来源：百度知道 编辑：UC知道 时间：2024/05/30 20:43:11
我的主要问题是，在which引导定语从句前面带介词的时候，
1.为什么会用这个介词?
2. 介词到底从属于句子的哪一个成分！？
（因为不仅仅是由于定语从句后决定）
我查过两本专业的语法书，上面有一个我最接受的了的说法是，一般概括的来说，which前出现介词通常属于三种情况，
一，先行词需要
二，整个句子的需要
三，从句中某个词语的需要。（一般是从句谓语动词）
这样一来，我经常很难分清到底属于那种需要，
再这即使弄清了，如果是前两种情况，我不确定为什么会用这个词。
i.e.
1.Competioin is the means by which other basic value such as individual freedom,equality of opportunity,and hard work are protected.
2.Experience is a school from which you never graduate.
3.Each of us has a purpose for which we were created.
4.life is a flower of which love is the honey.
5.Each of us has a purpose for which we were created.
6.A geniusis a man who does unique things of which nobody would expect him to be capable.
7.Konwledge is the wings with which we fly ti the heaves.
8.Kindness is the golden chain by which we fly to the h
正如你所说的，在这里，介词的确定一般有三种情况：
1、介词由定语从句中的固定搭配决定(包括动词短语、介词短语、形容词短语等)。
Experience is a school from which you never graduate.
在这个句子中：graduate from就是这种情况。
其他如：如：look for, look after, take care of等
2、介词由定语从句所修饰的先行词决定。
Knowledge is the wings with which we fly to the heaves.
就是这种情况。改写一下：We fly to the heavens with the wings of knowledge.
3、介词由整个定语从句和先行词的逻辑关系而确定。
在第一种情况下，很容易确定该用哪个介词，因为都是固定搭配。第二中情况有时有多种选择，但在一般四六级考试中只给你一个正确选择。
多看、多写、多问就会驾轻就熟了。祝你成功！
1.因为定语从句中的动词是不及物的,有时为了强调,把介词提前,介词提前的定语从句一律用which,有时 in which等同于where
ie
This is the city in which I once lived.(live 不及物)
This is the city that I once visited.(visit 及物)
2.非限制性定语从句一律用which
除以上两种情况外,其余则用that
根据语义分析句中的介词短语：
1.Competioin is the means by which other basic value such as individual freedom,equality of opportunity,and hard work are protected.
by means of.......by which
2.Experience is a