be interesting in 中 ing 修饰物 ed修饰人 为何不用ed?

Question

be interesting in 中 ing 修饰物 ed修饰人 为何不用ed?

Answer 1

1. sb is interested in sth. 某人对某事感兴趣.符合常规的：“人用-ed”
2. sb. is interesting 某人是有趣的,不符合常规用法,但跟“某物是有趣的”是一种用法：

Tom is interested in sports. Tom对运动感兴趣.
Tim is an interesting guy. Tim是个有趣的人.

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