1 高中英语语法讲义---- 名词性从句（主从、表从、宾从，同从）
1， 陈述句做名从用连词that + SV, that 表主句肯定从句完整，不做成分。主从可用it 做形式主语，宾从第一个that 可省略。 You study hard.
主从：That you study hard is known to us.= It is known to us that you study hard.
表从：My opinion is that you study hard .
宾从：I think (that) you study hard. …and that (不能省略)….
同从：My opinion that you study hard is known to us. *比较同从和主从！
一般抽象名词后对其进行解释和说明的完整句子就是其同位语从句，不完整就是定语从句。
I appreciate your idea that we have an exam every week. （that后完整—同从）
I appreciate your idea that you came up with last time.（that后不完整---定从）
2， 一般问句做名从用连词whether(是否) + SV，whether表主句不肯定从句完整，宾从中可用if（介词后或宾从后有or not时只用whether）。 Does your friend like English ?
主从：Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.
表从：My question is whether your friend likes English.
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高中英语语法练习-名词性从句
1. Go and get your coat. It's _______ you left it.
A. there B. where C. there were D. where there
2. _______ the sports meet will be held depends on the weather.
A. Whenever B. If C. Whether D. That
3. The problem is_______ he has enough time.
A. if B. whether C./ D. that
4. He made a promise_______ he would help me.
A. what B. when C. that D. which
5. I remember_______ this used to be a quiet village.
A. how B. when C. where D. what
6. They lost their way in the forest and _____ made matters worse was that night began to fall.
A. that B. this C. what D. which
1 专题十 名词性从句
第一节 基本知识与基本概念
【什么是名词性从句？】
上一章，我们了解的是定语从句，加上我们以前了解的宾语从句和状语从句，好像“名词性从句”这个概念本身就和我们所熟知的概念不是一路货色。没错。请看下表：
根据从句在句子中的功能分 根据从句的性质分
定语从句 形容词性从句
主语从句
名词性从句 宾语从句
表语从句
同位语从句
状语从句 副词性从句
只是，在平时老师讲课时，形容词性从句和副词性从句并没有形成气候罢了。相比之下，名词性从句由于“家丁兴旺”而大行其道。但是，作为学生，我们有必要了解这些基本概念的来龙去脉。
【主语从句】
顾名思义，主语从句在句子中作主语。有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it代替。从句作主语时，谓语动词一般为单数形式。如:
What I saw was beyond any verbal description.
That his hair was turning grey worried him a bit.
Why the company denied the contract is still unknown.
When and where the government will build a city square is under discussion.
It is pretty annoying that a small part of the machine is missing.
It remains to be seen whether the new novel will be well received.
【宾语从句】
在句子中作宾语的从句就是宾语从句。由于这是同学们接触比较早的一种从句，应该问题不大。所以在近年的高考题中，以宾语从句的知识作为考点的题目较少。但是，宾语从句也有自己的特殊情况，如介词的宾语，形容词的宾语，宾语从句提前和并列的宾语从句等现象。如：
1 每日一练 定语从句专练（一） 20130505 刘
1. His parents wouldn’t let him marry anyone ______ family was poor.
A. of whom B. whom C. of whose D. whose
2. She heard a terrible noise, _______ brought her heart into her mouth.
A. it B. which C. this D. that
3. In the dark street , there wasn’t a single person _____ she could turn for help.
A. that B. who C. from whom D. to whom
4. The weather turned out to be very good , ____ was more than we could expect.
A. what B. which C. that D. it
5.After living in Pairs for fifty years he returned to the small town ____ he grew up as a child.
A. which B. where C. that D. when
6．Carol said the work would be done by October, ＿＿＿＿＿personally I doubt very much.
A. it B. that C. when D. which
7．Dorothy was always speaking highly of her role in the play, ________,of course , made the others unhappy.
