cool cooler coolest
2.wet wetter wettest
3.late later latest
4.easy easier
5.large larger
6.old older
7.tall taller
8.lazy lazier
9.heavy heavier
10.lucky luckier
11.fat fatter
12.thin thinner
13.big bigger
比较级：1）shortter 2）weeker 3）newer 4）better 5）stronger 6）older 7）heavier 8）fatter 9）thinner 10）lighter 11）worse 12）bigger 13）sillier 14）smaller 15）taller
最高级：1）shorttest 2）weekest 3）newest 4）best 5）strongest 6）oldest 7）heaviest 8）fattest 9）thinnest 10）lightest 11）wost 12）biggest 13）silliest 14）smallest 15）tallest
比较级一般是在原形后加“er”，最高级应在原形后加“est”，但是有些单词是特殊的，如good的比较级是better,最高级是best
1.big:比较级bigger,最高级biggest
2.bad:比较级worse,最高级worst
3.delicious:比较级more delicious,最高级most delicious
4.rich:比较级richer,最高级richest
5.heavy:比较级more heavy,最高级most heavy
weak: weaker, weakest
angry: angrier angriest
famous: more famous, most famous
far: further furthest
quick: quicker quickest
early: earlier earliest
ill iller illest
free freer freest
calm calmer calmest
wild wilder wildest
serious more serious most serious
athletic more athletic most athletic
necessary more necessary most necessary
you can add the to the last word in one line
busy -busier -busiest
noisy -noisier -noisiest
cool -cooler -coolest
friendly -more friendly -most friendly
heavy-heavier - heaviest
nice - nicer- nicest
old - older - oldest
safe - safer-safest
small-smaller -smallest
wet - wetter - wettest
famous - more famous - most famous
good -better -best
beautiful -more beautiful - most beautiful
popular - more popular -most popular
crowded - more crowded - most crowded
bad -worse -worst
cold - colder - coldest
foggy -foggier-foggiest
little less least
far farther/further farthest/furthest
well/good better best
ill/badly worse worst
many/much more most
old older/ elder oldest/eldest
little - less- list
far - farther - farest
终于撸完，差点累死