interest.n.“兴趣；趣味”v.“使（人）产生兴趣”
What you said interests me.你的话引起了我的兴趣.
He shows an interest in music.他对音乐感兴趣.
interesting.adj.“有趣的；引起兴趣的”可作表语或定语,指物或人本身能引起兴趣.如：The film is very interesting.电影非常有趣.
He is an interesting man.他是一个有趣的人.
interested是动词interest 加ed 构成的形容词,意为“感兴趣的”,其主语一般指人.
常构成短语：interested in ,如：
When he was only a child,he got interested in science.
当他仅是一个孩子时,他就对科学产生了兴趣.