1. 以what等連接代詞引導(dǎo)的主語從句

What you need is more practice. 你需要的是更多的練習(xí)。

Whoever wants it may have it. 誰要都可以給他。

同類的連接代詞還有：What， who， whom， whose， which， whatever， whoever， whichever

2. 以that， whether從屬連詞引導(dǎo)的主語從句

It was strange that he had made a mistake. 真奇怪，他竟然錯了。

That we need more equipment is quite obvious. 我們需要更多的設(shè)備，這是很明顯的。

Whether he will join us won't make too much difference.

他是否加入我們，沒有太大的差別。

3. 主語從句的引導(dǎo)詞that什么時候可以省略

當(dāng)主語從句不太長時，引導(dǎo)詞“that”可以省略

It's clear (that) he has done his best. 很明顯他已經(jīng)盡力而為了。

It's a wonder (that) he didn't fail. 真奇怪，他沒有失敗。

4. 以when等連接副詞引導(dǎo)的主語從句

When they will come hasn't been made public. 他們什么時候來還沒有公布。

Where she has gone is not known yet. 她去了哪兒，還不知道。

Why he did it will remain a puzzle for ever. 為什么他做那件事將永遠(yuǎn)是個謎團(tuán)。

本文來自：逍遙右腦記憶 http://yy-art.cn/gaozhong/238500.html

相關(guān)閱讀：英語分類詞匯歸納：道路