① "as 原级形容词 as"的结构，表示前后两者的情况一样
"A 系动词 as 形容词原级 as B，
eg. Bill is as funny as his father.
My handwriting is as beautiful as yours. 我的书法和你的一样好。
"A 谓语动词 as 副词原级 as B"
eg. Lucy speaks Chinese as well as Lily.
② 在否定句中，用"not as/ so 原级形容词as"结构，表示前者不如后者。
"A 系动词 not as/so 形容词原级 as十B"
eg. These books aren't as interesting as those.
I am not as/ so busy as I used to be. 我没有过去那么忙了。
"A 助动词/情态动词 not 谓语动词 as/so B"
eg. She didn't sing so well that night as she usually does.
③ 如若第一个as/ so后的形容词作定语修饰名词，应将该名词及有关修饰语都放在第一个as/ so之后。
We have produced as many tractors as we did last year. 我们生产的拖拉机和去年一样多。
I don't make as/ so much money as you do. 我挣得钱不如你挣得多。