主語從句是在復(fù)雜句中充當(dāng)主語成分的句子，主要由三類連接詞引導(dǎo)，從屬連詞，連接代詞和連接副詞。為了讓同學(xué)更好地理解和記憶，對主語從句的引導(dǎo)詞做了一個詳細梳理?？靵砜纯窗桑∠Ｍ軒椭侥銅更多相關(guān)訊息請關(guān)注！
一. 從屬連詞：that & whether
1. that引導(dǎo)
That he is still alive is a wonder.
他還活著，真是奇跡。
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。
*引導(dǎo)詞that有時可以省略，有時則不能，若that引導(dǎo)的主語從句直接位于句首，則that不能省略，若that引導(dǎo)的主語從句位于句末，而在句首使用了形式主語it，則that可以省略：
That you didn’t go to the party was a pity.
It was a pity (that) you didn’t go to the party.
很遺憾你沒去派對。
2. whether引導(dǎo)
Whether it will do us harm remains to be seen.
是否對我們有害還有待觀望。
Whether they would support us was a problem.
他們是否會支持我們還是一個問題。
二. 連接代詞：who, whoever, whom, whose, what, whatever, which,whichever
Whoever is top from wins the game when two matched players meet.
兩強相爭勇者勝。
Whichever you want is yours.
你要哪個哪個就是你的。
What we need is money.
我們需要的是錢。
Whom the watch belongs to is unknown.
我們不知道這個表是誰的。
Whatever you did is right.
無論你做什么都對。
三. 連接副詞：when，where，how，why
When we arrive doesn’t matter.
什么時候到?jīng)]有關(guān)系。
Where I spend my summer is no business of yours.
我在哪里過暑假不關(guān)你的事。
How this happended is not clear to anyone.
這件事怎樣發(fā)生的，誰也不清楚。