目前大家应该是对非限定性定语从句和限定性的区别比较感兴趣的，所以今天好房网小编CC就来为大家整理了一些关于非限定性定语从句和限定性的区别方面的相关知识来分享给大家，希望大家会喜欢哦。

限制性定语从句与非限制性定语从句用法区别：

一、 句法功能、表现形式不同

定语从句分为限制性和非限制性两种。限制性定语从句不可缺少先行词，去掉它主句意思往往就不明确了，它与主句之间通常不用逗号分开；非限制性定语从句是对先行词的附加说明，去掉它也不会影响主句的意思。如：

Do you know the professor who is speaking at the meeting? （限制性定语从句）English is an important subject, which every student should study well. （非限制性定语从句）

二、 先行词不尽相同。限制性定语从句的先行词往往是某一个词，但非限制性定语从句的先行词可以是一个词，也可以是句子的一部分，甚至是整个主句，此时非限制性定语从句一般由which或as引导，as引导非限制性定语从句常用在as is said / known / expected / mentioned / reported / announced等结构中。如：

He has passed the college entrance examination, which makes his parents quite happy.

As is known to everybody, the moon travels round the earth once every month.

三、 关系词的使用情况有所不同

1． that 不可引导非限制性定语从句。如：

Her father gave her a computer for her birthday，which pleased her a lot.

2． why 不用在非限制性定语从句中，需用for which代替。如：

I told them the reason, for which Ididn'tattend the party last week.

3． 关系代词替代情况不同关系代词 whom 在限制性定语从句中作宾语时可用 who 代替 whom, 但 whom 在非限制性定语从句中作宾语时不可用 who代替。如：

This is the girl whom (who) I have been in love with for six years.

The young man had a new girl friend, whom he wanted to show all his love for.

4． 关系代词省略情况不同

关系代词在限制性定语从句中作宾语时可以省略；非限制性定语从句的所有关系代词均不可省略。如：

She is the new student (whom / who / that) I want to introduce to you.

All the books there, which have beautiful pictures in them, were written by him.

四、 下列情形用非限制性定语从句

当“不定数量词 (如some, several) ／ 数词 ＋ of which ／ whom”表示“整体 (which ／ whom)中的一部分”的概念时。如：We saw many animals in the zoo, some of which are tigers．There are fifteen new players in our team, two of whom come from Canada.

当先行词为专有名词或被物主代词和指示代词修饰时，其后的定语从句通常是非限制性的。如：

My house, which I bought last year, has got a lovely garden.Qingdao, where I have been three times, is an attractive city to foreigners.

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