比较级
A.基本结构“比较级+than” 结构
eg.
He is taller than I .
She sees me more often than she sees her brother.
B．变体
1）形比较级 + 名 + than
2）名 + 形比较级 + than
3）the + 形比较级 + of + the two
4）superior/ inferior to

最高级
A. 常用“the +最高级+比较范围”
eg. This is the best picture in the hall.
He sings the best in the class.
B. 变体
1)   more… than any other
2)   Not … + 比较等级

关于比较结构用法的补充说明
1）more…than…是…而不是，与其说是…不如说是
eg.
She is more been than wise.
He is more a writer than an artist.
2） not so much …as与其说是…不如说是
eg. It wasn’t so much that I disliked her as that I just wasn’t interested.
3)not more/er than与 no more/er than
eg.
He is no richer than I= as poor as
He is not richer than I
4)   more and more
eg. He is becoming fatter and fatter.
5). The more… the more…
eg. The harder she worked, the more progress she made.
6）more than 多于
eg. More than 1000 people attended the meeting.
7）more than 不止， 超过
eg. She is more than pretty.
8) more than 简直不
eg. My trip to Beijing is more than sightseeing.