英语形容词比较级和最高级

1.    不规则比较级和最高级
good, well/better/best;
bad/worse/worst;
much, many/more/most;
little/lessl/least;
far-farther-farthest, far-further-furthest（farther距离上更远；further程度上）
old-older-oldest, old-elder-eldest（older比……大；elder做定语,修饰其它名词，elder sister）

2.    规则比较级和最高级
单音节形容词：加-er/-est

多音节形容词：加more/the most
more/the most beautiful

双音节形容词：
    以-le (noble) or -y, -ly (pretty, early)结尾，加-er/-est
    以-ful (careful, helpful)，加more/the most
    一些常见词（narrow, clever, common, pleasant,quiet），常加-er/-est
polite, sincere, severe, handsome，加 more/the most


3.    拼写
    重读闭音节的单音节词要双写最后一个辅音字母，加-er/-est：
hot/hotter/hottest
big/bigger/biggest

    以-e结尾的单音节词，直接加-e add -r-st：
nice/nicer/nicest
large/larger/largest

    以辅音字母+-y结尾的双音节词要变-y为-i，再加-er-est：
tidy/tidier/tidest
busy/busier/busiest

4.    than用在比较级中
Bill Frith's garden is larger than Joe's.

in/of…用在最高级中
Which is the longest river in the world/of them all?