定语从句的引导词如何选择？

Question

如题所述

Answer 1

1.从句中如果是介宾的话，介词与先行词放在从句前，这时引导词不可省略，而且引导词只能用which,不能用that.

先行词是形容词的最高级，序数词，only. last 或者very，这时候只能用that.

当先行词本身是不定代词：anything, nothing, all, little, much, 这时只能用that 来引导。

先行词是一个既有人又有物的词组时，这时候只能用that 来引导。

当主句的疑问词时Who时，定于从句只能用that来引导。 2.主要看从句所缺少的成分.
因为关系代词就是代替所缺成分的. 3.不能用关系代词Which的几种情况

1.当先行词为all, little, much, few, everything, none 等不定代词时关系代词用that而不用which. I will tell him all that you told me at the ball.
There are few books that you can read in this book store.

2.当先行词既有人又有物时,关系代词用that, 不用which.
He asked about the factories and workers that he had visited.

3.当先行词有形容词最高级修饰时,关系代词用that, 而不用which.
This is the best novel that I have ever read.
Guilin is one of the most beautiful cities that I have ever visited.

4.当先行词有序数词修饰时,关系代词用that, 不用which.
The first sight that was caught at the Great Wall has made a lasting impression on him. 5.当先行词被the only, the very, the same, the right等修饰时,关系代词用that,不用which.
That is the very thing that we can do.
It is the only book that he bought himself.

6.当先行词被all, every, any, much, little, few, no等修饰时,关系代词用that,不用which.
You can take any room that you like.
There is no clothes that fit you here.

7.当主句是以which开头的特殊问句时,定语从句关系代词一般用that而不用which.
Which of the books that had pictures was worth reading?

8.在强调句型" It is ... that ..." 中,只用that,不用which.
It is in this room that he was born twenty years ago.

9.在" such (the same) ... as ..." 句型中,关系代词要用as, 而不用which.
We need such materials as (not which) can bear high temperature.

10.表示" 正如... 那样 "," 正象..." 之意时, 用as, 不用which.
Mary was late again, as had been expected.

11.As 引导的定语从句可以放在主句前面, 也可以放在主句后面或主句中间,而由 which引导的定语从句只能放在主句后面。
As we all know, oceans cover more than 70% of the earth

Answer 2

一、定语从句的引导词有关系代词who， whom，whose，which，that， as；关系副词when， where，why。定语从句中引导词的选用主要看先行词在定语从句中作什么成分或者是定语从句中缺什么成分。 1．定语从句中缺主语，修饰人时用who ／that，修饰物时用which ／that引导。2．从句中缺宾语，修饰人时用 who ／whom ／that或省略引导词；修饰物时用which ／that或省略引导词。3．从句中缺时间状语，用when或介词＋which引导。4．从句中缺地点状语，用where或介词＋which引导。5．从句中缺原因状语或先行词是 reason时，引导词用why ／for which ／ that。6．从句中缺定语，人和物都用 whose引导。7．当先行词是way时，其定语从句的引导词用in which ／that。二、引导词as可引导限制性定语从句，也可引导非限制性定语从句。 1．在固定词组the same．．．as，such．．．as中，as引导限制性定语从句。2．当先行词是整个主句时，可用 as ／which引导非限制性定语从句。引导词as和which的区别在于： ①as引导的非限制性定语从句可放于主句前、主句中、主句后，而which引导的非限制性定语从句一般放于主句后或句中。 ②as常与从句中的know，see， hear，expect等动词连用，也常用于as often happens，as is often the case（常有的事）等句子中；而which一般不用于以上情况。 ③as有“正如”的含义，which没有此含义。三、关系代词who，whom，whose， which和as能引导非限制性定语从句，而that不能；非限制性定语从句中即使缺宾语，引导词也不能省略；关系副词when，where能引导非限制性定语从句，而why不能。四、先行词是物时，其引导词可用 which也可用that，通常情况下二者可互换，但在有些情况下不能。 1．用which不用that引导定语从句的三种情况： ①非限制性定语从句用which，不用that引导。②先行词为that时，为了避免重 复，定语从句用which不用that引导。③介词后用which不用that引导。2．用that不用which的七种情况： ①先行词前有形容词最高级或序数词修饰时，用 that不用which引导。②先行词为little，much，all，none，few，（the）one， something，everything，nothing，anything等不定代词时，用that引导。③先行词既有指人的名词又有指物的名词时，用 that引导。④先行词前有any，all，no，few，every，some，little， much，（the）very，（the）only，（the）last等词修饰时，用 that引导。⑤先行词为which时，为了避免重复，用that引导。⑥先行词在从句中作表语时，常用that引导。⑦当主句是There be．．．句型时，用that引导。 五、在“one of＋复数名词＋定语从句”结构中，从句的谓语动词应与复数名词保持一致；当one前有the only修饰时，从句的谓语动词应与the only one保持一致。六、引导词前有介词或短语介词时，修饰人只能用 whom，修饰物只能用which引导。 先行词作宾语的时候可省略

Answer 3

that 一般可用于任何事情，但是比较口语化who 用于人which 用于句子的中间，而且从句的前后必须有逗号分开where 是用来解释地点when 是用来解释时间