例句
1、I thought you guys would be happy I was interested in doing this.
原以为你们会很高兴看到我对这个感兴趣。
2、They need to be interested in what you're doing too.
他们也会有兴趣关注你的研究。
be interested in doing sth 与 be interested to do sth 区别
区别：前者表示对做某事感兴趣，后者表示很想做某事。
一、be interested in doing sth 对(做)某事感兴趣
1、I’m interested in emigrating to Canada. 我对移居加拿大感兴趣。
2、They are interested in learning drawing. 他们对学绘画感兴趣。
二、be interested to do sth 很想做某事
1、I’m interested to hear your opinion. 我想听听你的意见。
2、I’d be interested to hear your opinion about this. 我很想听听你对这事的意见。
3、I shall be interested to know what happens. 我很想知道情况会怎样。