有些比较级用法中可以省去一些成分，这一节主要讲述在英语语法中比较级中省略的用法。
1. 在as…as中，as从句可省略整个谓语部分，保留主语
She sings as well as her sister. 她跟她的姐姐唱得一样好(省去了does)。
2. 可以省去谓语部分，保留主语和be、have等助动词
Susan has done as much housework as you have. (省去了done。)
3. 可以省去主语和谓语，只剩下状语
It is not as cold in Beijing as in Datong. 北京的天气没有大同冷。
4. than从句也可以省去整个谓语部分，保留主语
They say that blood is thicker than water, that our relatives are more important to us than others. 他们说血浓于水，亲属对我们来说比其他人更重要。
5. than从句省去部分谓语，保留主语和be,have或助动词
The white collar workers earn more than the blue workers do.
白领工人比蓝领工人挣得多。
After all, big changes are relatively easier to make than are small ones.
相对来说，大变动比小变动毕竟容易些。
The fact is that some drug addicts are much better able to cure addiction in each other than are psychiatrists; some convicts can run better rehabilitation programs for convicts than do correctional officers; some patients in mental hospitals are better for each other than is the staff.
事实上，有些吸毒成瘾者与吸毒成瘾者之间戒瘾比精神病医生的作用还好;有些罪犯在改造其他罪犯方面比教改人员强;医院里的病人与病人之间的沟通比医务人员与病人间的沟通还强。
6. than从句可以省去主语和部分谓语，保留宾语
Grandma gives more candies to her grandson than her granddaughter. 奶奶给孙子的糖比给孙女的多。(省去了she gives candies to)
There are more books in this library than in that library. 这个图书馆的书比那个多。(省去了there are many books)
She is much better than yesterday. 她比昨天好多了。(省去了she was)
Signs of dishonesty in school, business, and government seem much more numerous in recent years than in the past. 近些年来在学校、商业和政府中欺诈的迹象比以前更多。
8. than从句可以省去主语，保留谓语部分
His speed of doing the work was much faster than had expected. 他干此事的速度远比想象的快。(省去了he或we)
9. 有时可以省去整个than从句
He is much healthier and happier. 她比以往任何时侯都健康幸福。(省去了than he was ever before)
10. 为了避免重复，我们经常用that代替不可数名词, those代替复数名词,one代替可数名词单数
