什么是同位语从句 （The Appositive Clause）？

在复合句中充当同位语的从句，就是同位语从句。

同位语从句是用来对前面出现的名词作进一步的解释或说明，被解释说明的词和同位语在逻辑上是主表关系。这是同位语从句与定语从句的主要区别之一。

同位语从句一般用连词that来引导，也可根据先行词的不同含义，用whether, who，when, where, what, why, how等引导。常见的先行词多为抽象名词，如fact, idea, belief, news, hope, conclusion, evidence, suggestion, order, problem, report, decision.等等。有时由于谓语较短，可将同位语从句放在谓语之后。 请看下面的例句：

The fact that he was successful proves his ability.

他成功的事实证明了他的能力。

The news that they were kidnapped surprised us greatly.

他们被绑架的消息令我们非常震惊。

The boy often asked me the question whether the work was worth doing.

那男孩经常问我这项工作是否值得做。

She finally made the decision that she would join the fashion show.

她最后做出了决定，要参加时装秀。

I had no idea how many books I could borrow at a time.

我不知道一次可以借多少本书。

The news came that their team had won the championship.

消息传来说，他们的球队赢得了冠军。

Along with the letter was his promise that he would visit me this coming Spring Festival.

他在信中承诺，今年春节要来看望我。

（下期预告：限定性定语从句。 欢迎继续关注“友胜课堂”）