He loves animals and he knows all about them.请问这句话的all about them语法该怎么分析?
问题描述：
He loves animals and he knows all about them.请问这句话的all about them语法该怎么分析?
all是名词作谓语know的宾语吗?about them是介词短语修饰all作定语?
还是know作谓语,about them介词短语作状语?all是副词修饰后面的介词短语表程度?
答
all是名词,意为：所有,全部；它作谓语know的宾语
about them是介词短语,意为：关于它们的；修饰all作定语