名词性从句讲解(最全版)名词性从句是一个从句，它在句子中充当名词的角色。
它可以作为主语、宾语、表语、同位语或介词宾语。
名词性从句通常由连接词引导，如that、whether、if、who、whom、whose、which、what等。
1. 作为主语：名词性从句可以作为主语，取代一个名词或名词短语，引导词通常为that或whether。
例如：- What you said is true.（你说的是真的。
）- Whether he will come is still uncertain.（他是否会来还不确定。
）2. 作为宾语：名词性从句可以作为及物动词或介词的宾语，引导词通常为that、whether、if、who、whom、whose、which、what等。
例如：- She asked me what I wanted.（她问我想要什么。
）- I don't know if/whether he will come.（我不知道他是否会来。
）3. 作为表语：名词性从句可以作为系动词的表语，引导词通常为that、whether、who、whom、whose、which、what等。
例如：- The problem is that she doesn't understand.（问题在于她不理解。
）- The question is who will take care of them.（问题是谁会照顾他们。
）4. 作为同位语：名词性从句可以作为同位语，解释或说明前面的名词或代词，引导词通常为that、whether、who、whom、whose、which、what等。
例如：- The fact that he lied surprised me.（他撒谎的事实让我感到惊讶。
）- His belief that she will succeed is unwavering.（他坚信她会成功。
名词性从句（1）一、名词性从句分类名词可做：主语，宾语，表语，同位语What you said is right. 主语从句I totally agree with what you said. 宾语从句The fact is that he refused our plan 表语从句The fact that he refused our plan annoyed us. 同位语从句指同一件事情二、引导名词性从句的连接词That：定于从句中：有成分，主语宾语表语。
（先行词后的that）名词性从句：无成分，可以省略What：不用于定于从句，名词性从句中很活跃。
What=先行词+thatA1. Railway is to transportation 状语_____ blood is to a man’s body状语. 缺表语，用whatA. whatB. thatC. howD. whereA is toB whatC is toD A对B的作用相当于C对D的作用D2. Our factory is much more productive now. This year’s production is five times状语_____ it was ten years ago. 缺表语A. whatB. thanC. thatD. as三、whatever, whoever, whichever等词的用法1.疑问词；陈述语气B3. A bigmouth is _______ in English as a talkative person.A. known who it isB. whoever is knownC. known whoever it isD. who is knownA4. All of them agreed to accept ______ they thought was the best at playing football,A. whateverB. whicheverC. whomeverD. whoeverB5. --- Is there any particular seafood you would like to have?--- ________ you select is all right with us.A. WhichB. WhateverC. ThatD. All whatD6. ______ volunteers for blood donation shall, as the president has promised, take a two-week holiday.A. WhoB. AnyoneC. Those whoD. WhoeverB7. I have several current magazines with me. You can take ______ you like most.A. whichB. whicheverC. whateverD. what。
名词性从句的三种类型及例句解析名词性从句是指在一个句子中充当名词的从句。
它可以作主语、宾语、表语和同位语等，并能够起到连接子句与主句的作用。
在英语语法中，有三种主要类型的名词性从句：宾语从句、主语从句和表语从句。
本文将详细解析这三种类型，并举例说明其用法。
一、宾语从句宾语从句作为一个整体出现在主句中的动词后面，充当主句的宾语。
它常常引导由that、whether/if、wh-疑问词引导的从句。
下面是一些例句：1. 主句：He asked me a question.宾语从句：He asked me whether I had finished my homework.解析：宾语从句"whether I had finished my homework"作为动词"ask"的宾语，表达了一个疑问。
2. 主句：She doesn't know the answer.宾语从句：She doesn't know what the answer is.解析：宾语从句"what the answer is"作为动词"know"的宾语，表示对答案的不知道。
3. 主句：They wonder if he will come to the party.宾语从句：They wonder if/whether he will come to the party.解析：宾语从句"if/whether he will come to the party"作为动词"wonder"的宾语，表达了对他是否会来参加派对的疑问。
二、主语从句主语从句作为一个整体出现在句子的最前面，充当主句的主语。
它通常由that引导，也可以由wh-疑问词引导。
以下是一些例句：1. 主句：It is important to learn a foreign language.主语从句：That she is a hardworking student is important.解析：主语从句"That she is a hardworking student"作为句子的主语，强调了她是一个勤奋的学生的重要性。
