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比较等级的含义
英语中形容词与副词有三个比较等级，即原级，比较级和最高级。
一般来说， 表示等于时用原级。
Eg. I’m just as busy today as I was yesterday.
表示二者的比较时用比较级
eg. I’m much busier today than I was yesterday.
表示“最”时用最高级
Eg. That was the busiest day of my life.
存在句
形容词与副词比较等级的构成
构成 原级 比较级 最高级
单音节词尾加er, est great greater greatest
单音节词尾e, 加r, st fine finer finest
闭音节单音节词尾只
有一个辅音字母,双写 big bigger biggest
辅音字母加er,est
少数以y,er,ow, ble结尾
双音节词尾加er,est happy happier happiest
(y前为辅音字母去y加 clever cleverer cleverest
er,est）
其它双音节词和多
音节词，前加more, difficult more difficult most difficult
most
不规则变化
副词比较等级的构成
副词比较等级的构成大致与形容词比较等级的构成相同，但以后缀ly结尾的副词用more和most。
hard hardest hardest
early earlier earliest
quickly more quickly most quickly
不规则变化
形容词与副词比较等级的基本用法
A. 基本形式“as +原级+as” 结构
eg. He’s as tall as I.
B．否定的同级比较常用 not as… as或 not so … as
eg. He does not smoke so heavily as his brother.
C．变体
1) as + much/many + 名词+ as
2) as +形原级 + a + 名词 +as
3) as + 形+ 不可数名词+ as
4) 名词复数+as +形 + as
5) the same as/ be similar to |
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