due to前面为什么有时加be动词,有时不加,到底是什么词性望详解如It is usually due to genetics or stress.Others faced losing their homes due to overwhelming debt.

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due to前面为什么有时加be动词,有时不加,到底是什么词性望详解如It is usually due to genetics or stress.Others faced losing their homes due to overwhelming debt.
due to前面为什么有时加be动词,有时不加,到底是什么词性
望详解
如It is usually due to genetics or stress.
Others faced losing their homes due to overwhelming debt.

due to前面为什么有时加be动词,有时不加,到底是什么词性望详解如It is usually due to genetics or stress.Others faced losing their homes due to overwhelming debt.
due to是短语介词 也就是 这个短语 相当于一个介词
所以 后面 加 介词宾语 构成 的是 介词短语
而 介词短语 可以 作表语 也可以作状语
所以 第一个例子 是 介词短语 作表语 所以放在系动词 be 后
第二个例子 是介词短语 作状语 修饰 谓语faced losing their homes
所以 不需要be动词
也就是说 due to构成的介词短语 只有 作表语 时 前面才有系动词

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