比较级:
1.直接在词尾加er
2.以不发音e结尾的单音节词直接加r
3.在重读闭音节辅元辅的结构中,双写末尾辅音字母,再加er
4.辅音字母加y结尾把y变i+er
5.其他双音节词和多音节词在原级前加more
最高级:
1.直接在词尾加est
2.以不发音e结尾的单音节词加st
3.在重读闭音节辅元辅的结构中,双写结尾辅音字母加est
4.辅音字母加y结尾把y变i+est
5.其他双音节词和多音节词在原级前加most
举例:
1.long longer longest
2.large larger largest
3.big bigger biggest
4.easy easier easiest
5.friendly more friendly most friendly