谁能帮我看看下面4个例句分别是主语从句,宾语从句,表语从句和同位于从句的哪种?

Ask him which he wants.
The question is who can help us.
What he says sounds reasonable.
I have no idea what I should do.

1. Ask him which he wants.

* ask 是及物动词,后面跟有双宾语
* him 是间接宾语
* which he wants 是宾语从句,充当 ask 的直接宾语,。

2. The question is who can help us.

* is 是系动词
* who can help us 是表语从句。

3. What he says sounds reasonable.

* What he says 是主语从句
* sounds 是系动词
* reasonable 形容词作表语
本句意思是:他所说的听起来合情合理。

4. I have no idea what I should do.

* 句子的主要成分:I have no idea ,主谓宾结构
* what I should do 是同位语从句,用来进一步说明抽象名词 idea 的具体含义
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第1个回答  2010-07-13
例句一:宾从
例句二:表从
例句三:主从
例句四:同从
第2个回答  2010-07-13
Ask him which he wants.(宾语从句)
The question is who can help us.(表语从句)
What he says sounds reasonable.(主语从句)
I have no idea what I should do. (同位语从句)
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