英语的比较结构主要有:as...as,more...than,the most...结构。通常,单音节词和少数双音节词加词尾-er构成比较级,其他双音节词和多音节词在前面加more构成比较级。

一、基本用法:

1.形容词比较级+than:

  Jack is taller than Tom.

2.more/less/fewer+名词+than

  Lucy spent more money on books than her sister.

3.不定冠词/零冠词+形容词比较级+名词+than:

  Tom is a more efficient worker than Jack.

4.the+比较级+of词组:

  Lucy is the taller of the two girls.(两个中较……的一个)

5.比较级形式表达最高级含义:比较级+than any other+单数名词:(比其他任何……都……) 

  Lucy is taller than any other girl in her class. 露西比班上任何一个女孩都高。(即露西是班上最高的女生。)

二、特殊用法:

1.more and more...(越来越……)

  Lucy becomes more and more beautiful.

2.the ..., the...(越……就越……)

  The harder we work, the more progress we will make.

3.比较级前可加much,a lot, far, even, still, a little, no, any等表示程度的词来修饰。      

  The job is far more difficult than before.

4. more和less用作代词,与某些可等级名词搭配:

  He is more/ less of a sportsman than his best friend.

  =He is more/ less sportsmanlike than his best friend.

5.表示倍数的比较级用法:

  倍数+ the + size / length / depth /height +of

 =倍数+ as +形容词原级+ as

 =倍数+比较级+than

  The new building is three times the height of the old one. (这座新楼是旧楼的三倍高。)

 =The new building is three times as high as the old one.

 =The new building is twice higher than the old one.