The reason _it has been raining for 5 days is _ the crops has been flooded.A.that;whyB.why;thatC.which;whyD.why;which为啥

问题描述:

The reason _it has been raining for 5 days is _ the crops has been flooded.
A.that;why
B.why;that
C.which;why
D.why;which
为啥

第一个是同位语从句,意思是说谷物被淹的原因是连续下了5天雨。原句可改为Why the crops has been flooded is that it has been raining for 5 days

第一个引导的是同位语从句 因为it has been raining for 5 days句子成分完整了而reason是同位语从句典型的标志词。后面why引导表语从句这里表示原因是...所以用why。

that引导同位语从句,
the reason的内容就是that后引导的内容.
整体结构是:The reason is why the crops has been flooded.
that it has been raining for 5 days (已经下了5天的雨是原因)

前面that引导得是一个同位语从句,后面why引导得是一个定语从句,先行词reason在从句中做原因状语