worry和worried的一系列问题.

问题描述:

worry和worried的一系列问题.
worry about 和worried about有什么区别.be worry 和be worried 有什么区别,那么be不是be动词am is are was were 为什么英语书上的解释是:是;在;存在呢?worry应该是动词,worried应该是名词额,那么worry about 和worried about有什么区别.

①worry 动词 -worried-worried
②worried 形容词/worry的过去式、过去分词
③I worry about you.= I am worried about you.
④因为有I am(是) a student.I am(在) at home.I am(在,正在) doing homework.There is(有,存在) a tree there.
注:worry about=be worry about