文档介绍：名词性从句讲解-思维导图-附练习题-高中英语语法-三大从句-语法讲解与练习
名词性从句讲解 思维导图（附练习题）
定义：在句子中起名词作用的句子叫名词从句 (Noun Clauses). 名词性从句包括主语,宾语,表语,同位 I am glad that you can come and help me.
注意：① wish/would rather后的宾语从句中要用虚拟语气。
I wish I had finished my homework yesterday.
I’d rather you had been there yesterday
② 在表示建议,命令, 请求的词后面的宾语从句当中用should + V,
should可以省略
His pale face suggested that
he was ill so I suggested that he should go
to see the doctor.
He insisted that he was innocent and insisted that he should be set free.
宾语从句
③ 注意it作形式宾语的结构
We all thought it a pity that we had missed the lesson.
I took it for granted that they were not coming.
④ that一般不接介词宾语，偶尔可作except, in的宾语；其它介
词后面需用it作形式宾语
He differs from his roommates in that he devoted his spare time to
reading.
He knows nothing about Jim except that he is from London.
You can depend on it that he will help you in time of emergency.
定义：充当表语功能的句子被叫做表语从句。
表语从句
The question is whether we can make good preparation in such a short
time.
注意：reason后面的表语从句只能用that,不能用why引导.
★The reason is that（because ×)…
The reason why we didn’t trust him is that he has often lied.
(该句型中why引导一个定语从句)
定义：同位语从句跟在名词后面，进一步说明该名词的具体内容. 这些名词主要是表示抽象概念的词如fact, news, promise, idea, truth; possibility; statement; warning; advice等
★同位语的引导词有that; whether; why; who; where; how等；其中that
和whether只起引导作用
同位语从句
其