中考英语之同位语从句

同位语从句是指在复合句中充当同位语的从句。它跟在某些抽象名词后面，对该名词的具体内容进行解释、说明或补充。

结构公式：抽象名词 + 连接词 + 同位语从句

例子：

The news that our team won is exciting. (我们队赢了的消息令人兴奋。)

I have no idea when he will come. (我不知道他什么时候来。)

核心特征：同位语从句与前面的名词是等同关系，从句的内容就是名词的具体化。

同位语从句的引导词

that引导陈述句，无意义，不能省略The fact that he is honest is known.

whether表示“是否”，不用if. The question whether he will come is not settled.

what表示“所……的事情”I have no idea what he is doing.

who表示“谁”The problem who should go remains.

when/where/why/how表示时间/地点/原因/方式I have no idea why he left.

注意：同位语从句中，that 不能省略；表示“是否”只能用 whether，不能用 if。

fact (事实)    The fact that he is ill surprised us.    

news (消息)    The news that we won spread quickly.   

idea (想法)    I have an idea that he will come.    

hope (希望)    The hope that he may recover is fading.    

truth (真相)    The truth that he lied came out.  

belief (信念)    His belief that hard work pays off is strong.    

thought (想法)    I had a thought that he might be right.    

promise (承诺)    He made a promise that he would return.    

question (问题)    The question whether he will come is still open.    

suggestion (建议)    I have a suggestion that we should start early.    

考点1：that 引导的同位语从句

that 引导同位语从句时，只起连接作用，无词义，在从句中不作任何成分，不能省略。

The news that our team won the game made us excited.

(我们队赢了比赛的消息让我们兴奋。)

I heard the fact that he had passed the exam.

(我听说了他通过了考试这一事实。)

考点2：whether 引导的同位语从句

同位语从句中表示“是否”时，只能用 whether，不能用 if。

The question whether we should go is still being discussed.

(我们是否应该去的问题仍在讨论中。)

❌ The question if we should go is still being discussed.

考点3：疑问词引导的同位语从句

when, where, why, how, who, what 等疑问词也可以引导同位语从句，此时从句通常跟在 idea, question, problem, doubt 等名词后面。

I have no idea when he will arrive. (我不知道他什么时候到。)

That is the question how we can solve the problem. (那就是我们如何解决这个问题的问题。)

I have no idea why he was absent. (我不知道他为什么缺席。)

1.The fact ______ he is a famous actor is known to everyone.

A. which     B. that     C. who     D. what

1. The question ______ the sports meeting will be held has not been decided.

A. that     B. whether      C. if      D. what

3.I have no idea ______ he will come back.

A. that     B. when      C. what   D. which

距2026年苏州中考74天

1. B【解析】 从句 "he is a famous actor" 是一个完整的句子，不缺任何成分，解释 fact 的具体内容，因此是同位语从句，用 that 引导。

2. B【解析】 从句表示“是否”，且位于名词 question 后作同位语从句，只能用 whether，不能用 if。

3. B【解析】 从句表示“他什么时候回来”，缺少时间状语，用 when 引导。