care、careful、carefully三个英语单词意思相近，但词性不同。care是动词或者名词，careful是形容词，carefully 是副词。下面我们来具体看一下三个单词的区别含义
1.care用作动词，表示照顾、关心、担心、喜爱；用作名词表示：照顾、小心、忧虑;
例句1：How much do men share housework and the care of the children?
男人分担多少家务和照看小孩的工作？
例句2：Great care is needed when choosing a used car.
选购旧车时要特别小心。
2.careful用作形容词，意思是仔细的、小心的、 周到的、 谨慎的、心细的;
例句1：It is important, I think, for everyone to be careful about claiming victory.
我想，每个人宣布胜利时都应该慎重。
例句2：You cannot be too careful in driving a car.
开车时再怎么小心也不为过。
3.carefully用作副词，意思是：仔细地、小心谨慎地、警惕地、周密地
例句1：He had chosen his words carefully in declaring that the murderers were madmen.
他在宣布这些杀人犯精神错乱时,措词很谨慎。
例句2：We carefully watched every detail of his action.
我们仔细观察了他动作的每个细节。
