形容词、副词的比较级与最高级 

1.形容词和副词的比较级和最高级的变化 

规则变化： 

单音节及部分双音节的词，一般在词尾加er或est， 

其中重读闭音节要双写最后的辅音字母。 

如: big, bigger, biggest; 

以e结尾只要加r或者st 

辅音字母加 y 结尾的去 y 加 ier 或者 iest 

形容词和副词的比较级和最高级的变化 

规则变化： 

部分双音节及多音节的词在前面加上more或者most，如： 

careful, more careful, most careful 

不规则变化的词需要在日常生活中多积累，多记忆。例如： 

good, better, best 

bad, worse, worst 

2.形容词、副词的常用句型 

1）as...as...和...一样 

例句：You are as tall as your father. 

2）not as/so...as...不如...那样 

例句：People's brain cannot work as fast as computer. 

3）比较级+than... 

例句：It is cheaper to eat at home than in the restaurant. 

注意比较级的句型中，比较的对象必须是同类型的事物。 

例句：The weather in Shanghai is warmer than that in Beijing. 

4）用副词或短语修饰形容词、副词的比较级，表程度 

如：much, far, even, still, a lot, a little, a bit, rather, slightly, many等。 

例句：Your argument is far more persuasive than his. 

3.用形容词、副词最高级的句型 

1）the ...est/most ...of/in 

例句：China is the one of the largest countries in the world. 

2）可以用比较级的句型来表达最高级的含义 

例句： 

Jim is taller than anyone else/any of the others/all the others/any other one in our class. 

No one is taller than Jim in our class. 

I have never seen a better film than this one. 

3）形容词最高级前必须加定冠词the，物主代词所有格或指示代词，副词最高级前可加可不加。 

例句： 

Don't forget to wear your/the best clothes to the interview. 

He runs （the） fastest in our class.