she took down what he said,careful not to miss a word.careful 和not to miss a word 分别是什么成分

问题描述:

she took down what he said,careful not to miss a word.careful 和not to miss a word 分别是什么成分

这是形容词做补助语
careful 和not to miss a word 不应分开来看 应理解成形容词短语有形容词短语这种东西? 你给我说明一下形容词短语功能相当于形容词其构成有多种,其中有He is sure to come.他一定会来的。(sure to come是形容词短语。)