（可直接使用）小学英语比较级和最高级知识点.ppt

parethingsandpeople形容词&副词比较等级的构成英语形容词比较等级有三个:原级,比较级和最高级 fast◇Lookatthepicturesandunderstand看图并理解fastfaster◇Lookatthepicturesandunderstand看图并理解fastfasterfastest◇Lookatthepicturesandunderstand看图并理解◇Lookatthepicturesandunderstand看图并理解bigbiggerbiggest规则变化 1)单音节词末尾加-er(比较级),-est(最高级)(少数以er,ow结尾的双音节词)原级比较级最高级 greatgreatergreatest smallsmallersmallest cleancleanercleanestclevercleverercleverest2)单音节如以e结尾,只加-r(比较级),-st(最高级) finefinerfinestwidewiderwidestableablerablest规则变化 3)闭音节单音节词如末尾只有一个辅音字母,须先双写这个辅音字母,再加-er(比较级),-est(最高级) 4)以辅音字母+y结尾,则变y为-i,再加-er和-estbigbiggerbiggest hothotterhottest redredderreddest easyeasiereasiest规则变化 5)其它双音节和多音节词皆在前面加单词more和most carefulmorecarefulmostcareful difficultmoredifficultmostdifficult deliciousmoredeliciousmostdelicious不规则变化 原级比较级最高级good/wellbetterbestmany/muchmoremost