"The old man has fallen into poverty"是主系表结构吗?has fallen是系动词?

问题描述:

"The old man has fallen into poverty"是主系表结构吗?has fallen是系动词?
为何我高考复习指导书上说这是主系表结构?

这个句子是主谓宾结构的,主语是The old man 谓语是现在完成时结构的has fallen into 宾语是poverty.