Question

the reason that和why的区别

Answer 1

the reason that和the reason why的区别关键是看the reason在定语从句中作什么句子成分，如果做主语、宾语，则应该用that；如果作状语，则应该用why。

1）the reason that后接具体原因。

2） the reason why后接对这个理由的修饰，或者是现在需要解释的一个状况。

举例解释： 

1）He didn't explain the reason why he was late this morning. 

这里the reason在从句中作状语，表示原因。 

2）The reason why he was late is that he was ill.

在这里，he was late 是一个需要解释的情况, 所以用the reason why，这里用到一个句型：the reason why ... is that...

3）The reason that he gave for his lateness was that he didn't catch the first bus.  

这里the reason在从句中作及物动词gave的宾语。