最高考高考英语语法精讲精练专题九名词性从句常考点

专题九 名词性从句常考点

在复合句中起名词作用的从句叫作名词性从句。它包括主语从句、宾语从句、同位语从句和表语从句。名词性从句是英语中的一个重要语法项目，在历年的高考中几乎都涉及到。引导名词性从句的连接词可分为三类：连接词that，whether，if(不充当从句的任何成分)；连接代词what，whatever，who，whoever，whom，whose，which；连接副词when，where，how，why。

1 It is...和There

is...

It is...句型中it为形式主语，真正的主语为动名词、不定式或从句，而There is意为“有……”，有时be也可以用exist，remain等替代。

用it，there填空：

①________ is a pity that he was absent. ②________ is a fact that he has lied to you. ③________ is no wonder that he is so excited. ④________ is no need to worry about it.

⑤________ is no sense/point (in) arguing with him.

⑥________ is no doubt that he has gone.

【答案】①It ②It ③It ④There ⑤There ⑥There

2 从句作主语时的谓语

动词形式

主语从句作主语相当于第三人称单数作主语，谓语动词用单数；如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句，谓语动词用单数。

用所给词的适当形式填空：

①That the president is coming ________(excite) all of us. ②How close parents are to their children ________(have) a strong influence on their character.

③When and where the meeting will be held ____________(not decide) yet.

【答案】①excites ②has ③isn't decided/hasn't been decided

3 宾语从句的时态和语

序

宾语从句中的时态要注意呼应。当主句中的谓语是现在时，从句根据自身的句子情况，而使用不同的时态。当主句中的谓语是过去时态，

从句则要用相应的过去时态(如一般过去时，过去进行时，过去将来时等)；当从句表示的是客观真理、科学真理、自然现象，则从句仍用现在时态。宾语从句语序要用陈述语序(what is/was the matter除外)。

①The photographs will show you ________．

A. what does our village look like B. what our village looks like

C. how does our village look like D. how our village looks like

②Someone is ringing the doorbell. Go and see ________． A. who is he B. who he is C. who is it D. who it is ③Hello，I didn't know you ________(be) in London. How long have you been here?

④I thought he ________(be) coming tomorrow.

⑤The teacher told us that light ________(travel) at a very high speed.

【答案】①B ②D ③were ④was ⑤travels

4 表语从句中的常见句

型

常用的句型有：The reason is that...；It is because...；That's why...；That's where...。

完成下列句子：

①The reason ________ he is absent from school is ________ he is ill.

＝He is ill. That's ________ he is absent from school. ＝He is absent from school. That's ________ he is ill. ②The reason ________ he gave was ________ he was caught in the traffic jam.

③That's ________ I disagree/the problem lies/I have doubt/you are mistaken.

That's ________ I disagree about/the problem lies in/I have doubt about/you are mistaken about.

【答案】①why；that；why；because ②which；that/不填 ③ where；what

5 同位语从句和定语从

句的辨别

同位语从句就是在复合句中作名词的同位语的名词性从句。连接词 that引导同位语从句时，应在某些抽象名词之后，如：fact，hope，