名詞性從句可以稱作為主語從句，主語從句就是用來做句子的主語的。主語從句通常由連詞that和whether、連接代詞或連接副詞以及關(guān)系代詞型what引導(dǎo)。

一、由that引導(dǎo)的主語從句。
1. That he is still alive is a wonder.
他還活著，真是奇跡。
2.That we shall be late is certain.
我們要晚了，這是確定無疑的。
3.That he should have ignored the working class was natural.
他忽視工人階級(jí)是很自然的。
4. That she is still alive is a consolation.
她還活著是使人感到寬慰的。
5. That she became an artist may have been due to her father’s influence.
她成為畫家可能是受她父親的影響。
6. That you are coming to London is the best news I have heard this long time.
你將來倫敦是好久以來我聽到的最好消息。
7. That she was chosen made a tremendous stir in her village.
她被挑選上，在她村 子里引起很大轟動(dòng)。

二、關(guān)系代詞型what引導(dǎo)的主語從句。
1. What we need is money.
我們需要的是錢。
2.What I want to know is this.
我想知道的就是這一點(diǎn)。
3.What’s done is done.
事已成定局。
4.What he says is not important.
他說的話并不重要。
5.What I am telling you is mere impressions.
我和你說的都不過是一些印象而已。
6. What make the river more beautiful are the lotus plants growing in the water. 為河水增色的是水里的荷花。
7. What you need is a good-sized canvas bag.
你需要的是一個(gè)比較大的帆布袋。
8.What I am afraid of is their taking him to Portugal.
我擔(dān)心的是他們把他帶到葡萄牙去。