1.small--smaller,smallest 21.late--later,latest
2.short--shorter,shortest 22.nice--nicer,nicest
3.tall--taller,tallest 23.large--larger,largest
4.young--younger,youngest 24.heavy--heavier,heaviest
5.long--longer,longest 25.early--earlier,earliest
6.strong--stronger,strongest 26.easy--easier,easiest
7.light--lighter,lightest 27.busy--busier,busiest
8.low--lower,lowest 28.slowly--more slowly,most slowly
9.high--higher,highest 29.pretty--prettier,prettiest
10.slow--slower,slowest 30.funny--funnier,funniest
11.fast--faster,fastest 31.dirty--dirtier,dirtiest
12.high--higher,highest 32.beautiful--more beautiful,most beautiful
13.hard--harder,hardest 33.interesting--more interesting,most interesting
14.cheap--cheaper,cheapest 34.expensive--more expensive,most expensive
15.bright--brighter,brightest 35.important--more important,most important
16.dark--darker,darkest 36.different--more different,most different
17.cool--cooler,coolest 37.excited--more excited,most excitest
18.fat--fatter,fattest 38.good/ well--better,best
19.big--bigger,biggest 39.bad/ill--worse,worst
20.thin--thinner,thinnest 40.far--1.farther,farthest(更遠的,最遠的)
2.further,furthest(更深入的最深入的)
21.hot--hotter,hottest 41.old--older,oldest
42.many/much--more,most