请教语法知识,he is four years old!

问题描述:

请教语法知识,he is four years old!
he is four years old,这句话中four years 是什么成分?可否理解为修饰形容词old的状语?

是的.你真聪明,且善于钻研.
形容词old用于表示人的年龄:How old are you?
表示时间长度的短语用作程度状语,修饰作表语的形容词old.那也就是说是名词可以做状语是吗,请问专家像这样名词做状语的情况还有哪些呢?谢谢!嗯,特别是做形容词的程度状语。如:He is 3 inches taller than I.修饰动词也可以,I have seen him three times.