During his senior high school,he became more and more interested in literature,and he also found some more interesting rules of literature.
这样稍微好一点,只是interested/interesting 这种词都太普通太简单了,可以考虑换一下.
英语翻译在高中的时候,他对于文学变的更加的着迷了,也发现了一些更有趣的规律翻译成：During the senior p