例如:He always works hard even if he knows the fact that he is not in good health.His failure was due to the fact that he had not practised for along time.I had no idea that you were here.She told us her hope that she would become apianist.He made apromise that he would never come late.注意:that既可引导同位语从句又可引导定语从句,其区别在于:同位语从句由连接词that引导,连接词that本身无意义,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,由when,why,where引导的同位语从句和定语从句的区别在于:同位语从句由连接副词只起连接作用,没有指代作用;定语从句由关系副词引导,关系副词具有指代先行词的作用,常用一个介词加关系代词替换。