和形容词一样，副词也有原级、比较级.

规则变化：

1. 单音节词， 加er

（1）副词和形容词同形，单音节，在词尾加er

fast – ____________ hard –____________ loud—________________

（2）以字母“e”结尾的副词，加”r”

late --- _____________

（3以辅音字母y结尾的副词，先变i,再加er

early –______________

2.双音节和多音节词，前面加more

accurately—________________ carefully – _________________

gracefully – ________________ politely--____________________

有些副词有两种形式，都可以

slowly –slower / more slowly quickly – quicker / more quickly

loudly –louder / more loudly softly – softer / more softly

neatly – neater / more neatly

3.不规则变化，需要熟记

well – better

badly- worse

little – less

much –more

late – later

far---farther