種類

作用

常用關(guān)聯(lián)詞

例句

主語(yǔ)從句

在復(fù)合句中作主語(yǔ)，相當(dāng)于名詞，一般置謂語(yǔ)之前，也可用it作形式主語(yǔ)，主語(yǔ)從句放主句之前

that, whether, if, as if, as though, who, whose, which, how, when, where, why, what, whatever, whoever, wherever

Whether he will come or not doesn't matter much.

表語(yǔ)從句

在復(fù)合句中做表語(yǔ)，相當(dāng)于名詞，位于系動(dòng)詞之后

Whoever comes here will be welcome

賓語(yǔ)從句

在復(fù)合句中做賓語(yǔ)，相當(dāng)于名詞

It looks as if it is going to snow.

同位語(yǔ)從句

放在名詞之后(news, problem, idea, suggestion, advice, thought, hope, fact)

He asked me which team could win the game.

You have no idea how worried we are.

The fact that he lied again greatly surprised? us.