乾貨：主語從句用法詳解（上）

主語從句是名詞性從句的一種，指的是用來充當全句主語的句子，有時還會使用it充當形式主語，主語從句的使用率很高，在各類考試中的出現率也很高，但掌握起來並不容易，所以小編這次就爲大家準備了主語從句的詳細解析，快點學起來吧！

一、主語從句的引導詞
主語從句通常由連詞that和whether、連接代詞或連接副詞以及關係代詞型what引導。
1. that引導
That he is still alive is a wonder. 他還活着，真是奇蹟。
That we shall be late is certain. 我們要晚了，這是確定無疑的。
That he should have ignored the working class was natural. 他忽視工人階級是很自然的。
That she is still alive is a consolation. 她還活着是使人感到寬慰的。
That she became an artist may have been due to her father’s influence. 她成爲畫家可能是受她父親的影響。
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。
That she was chosen made a tremendous stir in her village. 她被挑選上，在她村                    子裏引起很大轟動。
2. whether引導
Whether it will do us harm remains to be seen. 是否對我們有害還要看一看。
Whether they would support us was a problem. 他們是否會支持我們還是一個問題。
3. 連接代詞引導
Whoever is top from wins the game when two matched players meet. 兩強相爭勇者勝。
Whichever (of you) comes in first will receive a prize. 無論(你們)誰先到都可以得獎。
Whichever you want is yours. 你要哪個哪個就是你的。
4. 連接副詞引導
When we arrive doesn’t matter. 什麼時候到沒有關係。
How it was done was a mystery. 這是怎樣做的是一個謎。
How this happended is not clear to anyone. 這件事怎樣發生的，誰也不清楚。
How many people we are to invite is still a question. 邀請多少人還是一個問題。
Where I spend my summer is no business of yours. 我在哪裏過暑假不關你的事。
5. 關係代詞型what引導
What we need is money. 我們需要的是錢。
What I want to know is this. 我想知道的就是這一點。
What’s done is done. 事已成定局。
What he says is not important. 他說的話並不重要。
What I am telling you is mere impressions. 我和你說的都不過是一些印象而已。
What make the river more beautiful are the lotus plants growing in the water. 爲河水增色的是水裏的荷花。
What you need is a good-sized canvas bag. 你需要的是一個比較大的帆布袋。
What I am afraid of is their taking him to Portugal. 我擔心的是他們把他帶到葡萄牙去。
What struck me was that they have all suffered a lot. 給我很深印象的是他們都受過很多苦。

以上就是這次的內容了，不知道大家都掌握了嗎？看起來內容挺多，但只要一步一個腳印，踏踏實實的學下去，就能慢慢掌握每一個知識點的。