名词性从句

名词性从句包括主语从句，宾语从句，表语从句，同位语从句

名词性从句中的连词分为三类

一、无成分，无含义(1个)

• that

I can’t believe that the accident happened。

二、无成分，有含义(8个)

• Whether/if 是否
• if做是否讲，只能用于宾语从句

Whether We will visit Beijing or not depends on the weather.

• when 什么时候

When he will come is still unknown.

• where 在哪里

Where the heroine went is not mentioned at the end of the story

• why 为什么

Why he often comes here is known to us all.

• how 怎么样

How he managed to finish the composition in such a short time is still a mystery.

• which 哪个

The problem is which place is interesting.

• whose 谁的

We don’t know Whose advice we will take.

三、有成分，有含义

• what 什么，做主、宾指物

What surprised me most was that such a little girl could play the violin so well.

• who 谁，做主指人

I don’t know who has watered the fields.

• whom 谁，做宾指人

I know whom you represent

补充

• Wonder引导宾语从句，从句要用陈述语序

I wonder what your name is.

• It做形式主语

做题方法：

一、用it代替主语从句
二、其余照抄
三、真正主从放最后

It is true that many people neglect environmental problem.

• It做形式宾语(只适用于主谓宾宾补的句式)

做题方法：

一、用it代替宾语从句
二、其余照抄
三、真正宾从放最后

I consider it necessary that we learn English.

• 宾语从句中连词that可以省略

I think (that) everyone is responsible for this matter.

• 连词+ever ，用法不变，意思，无论…….

名词性从句中需要注意的五点