the thought he might be fail in the exam worries him

问题描述:

the thought he might be fail in the exam worries him
有语病吗,为什么 同位语从句的THAT 不能省略,省了为什么不对吗

引导同位语从句的that是连词,起到连接作用,因此不能省.而其在从句中不充当任何成份
The news that he has passed the examination is exciting.
他已通过考试的消息真是令人兴奋.(that在从句中不充当任何成份.)