careful与carefully的用法None of the students are ( ) to work on the math problem.为什么句中用careful enough而不用carefully enough?

careful与carefully的用法None of the students are ( ) to work on the math problem.为什么句中用careful enough而不用carefully enough?
careful与carefully的用法
None of the students are ( ) to work on the math problem.
为什么句中用careful enough而不用carefully enough?

careful与carefully的用法None of the students are ( ) to work on the math problem.为什么句中用careful enough而不用carefully enough?
简单说来,因为句子中用的是be动词,be动词后跟形容词, 动词后跟副词
在这里句中用的be动词“are”,所以后面跟形容词careful enough
如果要用carefully enough的话,这句话要改写成 None of the students can work carefully enough on the math problem 之类.

楼上好厉害。

are是系动词，后面加形容词。
附：enough的用法：形容词+enough 或enough+名词 “足够的……”