1.一般单音节词和少数以-er,-ow结尾的双音节词,比较级在后面加-er,最高级在后面加-est;
(1)单音节词
如:small→smaller→smallest
short→shorter→shortest
tall→taller→tallest
great→greater→greatest
(2)双音节词
如:clever→cleverer→cleverest
narrow→narrower→narrowest
2.以不发音e结尾的单音节词,比较在原级后加-r,最高级在原级后加-st;
如:large→larger→largest
nice→nicer→nicest
able→abler→ablest
3.在重读闭音节(即:辅音+元音+辅音)中,先双写末尾的辅音字母,比较级加-er,最高级加-est;
如:big→bigger→biggest
hot→hotter→hottest
fat→fatter→fattest
4.以“辅音字母+y”结尾的双音节词,
把y改为i,比较级加-er,最高级加-est;
如:easy→easier→easiest
heavy→heavier→heaviest
busy→busier→busiest
happy→happier→happiest
5.其他双音节词和多音节词,比较级在前面加more,最高级在前面加most;
如:beautiful→more
beautiful→most
beautiful
different→more
different→most
different
easily→more
easily→most
easily
注意:(1)形容词最高级前通常必须用定冠词
the,副词最高级前可不用。
例句:
The
Sahara
is
the
biggest
desert
in
the
world.
(2)
形容词most前面没有the,不表示最高级的含义,只表示"非常"。
It
is
a
most
important
problem.
=It
is
a
very
important
problem.
6.有少数形容词、副词的比较级和最高级是不规则的,必须熟记。
如:good→better→best
well→better→best
bad→worse→worst
ill→worse→worst
old→older/elder→oldest/eldest
many/much→more→most
little→less→least
far
→further/farther→
furthest/farthest