he became very insterested in science.为什么insterest要用ed呢?
问题描述：
he became very insterested in science.为什么insterest要用ed呢?
答
become/get/be interested in 是固定搭配,意为对什么感兴趣
这里的interested是interest的过去分词形式,可当做过去分词的形容词化.另外还有很多类似的搭配也是这样