很多同学在学英语时都感觉语法困难，想要提高成绩，打好语法基础必不可少！新东方在线整理2025年6月英语四级语法：同位语从句解说，供各位考生参考。
2025年6月英语四级语法：同位语从句解说
同位语从句指的是在复合句中充当同位语的从句，可以对其前面的抽象名词做讲解说明，是名词性从句的范畴。同位语从句的引导词为"that"，无含义，不充当成分，不可省略。
1. that引导同位语从句。
在下列名词后可用that引导同位语从句answer, belief, doubt, fact, hope, idea, information, knowledge, law, news, opinion, plan, suggestion, thought, truth等。
I had no idea that you were here.
The story goes that William killed his wife.
He always works hard in spite of the fact that he is not in good health.
Suddenly the thought came to me that he would go blind.
注意：
①位语从句引导词that无含义，不充当成分，不可省略。
②同位语从句与其说明的名词或代词为同一内容，故可以用is把前边的中心词和从句连接成一个句子。
③同位语从句前一般没逗号。
that引导同位语从句与引导定语从句有什么区别：that引导同位语从句时只起连接用途，不充当任何成分;that引导定语从句时，在从句中要作成分，如主语、宾语等。
①He told me the news that our team won.
②The news that / which he told me was very exciting.
2. 在no idea, question, problem等后可用wh-疑问词引导同位语从句，if不引导同位语从句。
I have no idea where he has gone.
I have no idea what he said.
3. 辨析：引导名词性从句时what与whatever, who与whoever有什么区别：
what 与whatever：
What you want has been sent here. that/all that/anything that特指)
Whatever you want makes no difference to me.
What caused the accident was a broken bottle.
Whatever caused the accident has not yet been found.
who 与whoever：
Who will go to Beijing on business has not been decided.
Whoever breaks the law should be punished.
4. 同位语从句注意与定语从句不同，同位语从句对前一名词做补充说明，在从句中无语法地方，而定语从句所修饰词在从句中占一语法地方如：
The idea that one can do the work without thinking is wrong.
The idea that you put forward at the meeting is wrong.
以上就是新东方在线大学英语四级语法频道给大伙收拾的“2025年6月英语四级语法：同位语从句解说”内容，期望可以给大伙备考带来帮助。
