careful的比较级是more careful,最高级是the most careful。careful的意思是小心;注意;谨慎;细致的;精心的;慎重的。careful用作表语时,其后也可跟动词不定式、that从句。careful和about连用是“小心”的意思,通常后接指物的名词、动名词或从句。 扩展资料
例句:
Careful on those stairs。走那几段楼梯要当心。
You have to be careful what you say on telly。在电视上说话时你必须很谨慎。
I asked her to be more careful in future。我要她以后更加小心。
Can't you be a bit more careful with my bike?你骑我的车就不能更小心点吗?
Such an occasion demands the most careful consideration。这样的场合需要最周到的.考虑。
We all think he is one of the most careful students in his class。我们都认为他是班里最细心的学生之一。
careful是形容词,形容词的最高级变化有以下规则
单音节词:(1)直接加est long~longest
(2)有e直接+st nice~~nicest
(3)以重读闭音节结尾,末尾只有一个辅音字母,双写这个辅音子母,再加est
big~~bigest
(4)以辅音字母加y结尾,变y为i,再加est
busy~~busiest
多音节的最高级,就是在多音节词前加most
interesting~~~most interesting
important……most important
那么careful也是多音节词,所以最高级是
careful~~~most careful