同位语从句指的是在复合句中充当同位语的从句，属于名词性从句的范畴，同位语从句用来对其前面的抽象名词进行解释说明，通常由that，whether等引导词引导，现在为大家带来由that引导的同位语从句的讲解。

1.that引导同位语从句对前面主句的内容进行解释说明：

eg. We heard the news that our team had won.

The fact that the money has gone does not mean it was stolen.

2.在某些名词(如demand, wish, suggestion, resolution等)后面的同位语从句要用虚拟语气。

eg.The suggestion that the new rule be adopted came from the chairman. 采纳新规则的建议是主席提出的。

The resolution that women be allowed to join the society was carried. 允许妇女参加这个协会的决议通过了。

3.引导同位语从句的连词that通常不省略，但在口语中也可以省去。

eg.He gabbed his suitcase and gave the impression he was boarding the Tokyo plane.

4. that 既可引导同位语从句又可引导定语从句, 同位语从句由连接词that引导，在同位语从句中不充当任何成分，不可省略，不可以用其他词替代,定语从句由关系代词that引导，关系代词that在从句中充当一定的成分，作宾语时可省略。