两者比较级前要加the吗?怎么用?是不是只有三者,三者以上才可用*?

*才需要the
she is more clever than he.
she is the most clever student in the class.
三个或三个以上才用*

当比较范围为两者时,比较级前要加the.
He is the taller of the two.
三者及三者以上的*前加the.
He is the tallest in the class.