1.比較級(jí)可分形容詞(adj)的比較和副詞(adv)的比較兩種。
He is taller than I.(他比我高)
He works more diligently than I do.他比我更努力地工作。
2.原級(jí)，比較級(jí)，級(jí)的變化
A.規(guī)則變化
(a)大部分一個(gè)音節(jié)和部分兩個(gè)音節(jié)的形容詞和副詞，字尾+er變成比較級(jí)，字尾+est變成級(jí)
clear clearer clearest
small smaller smallest
narrow narrower narrowest
near nearer nearest
late later latest
(b)字尾是短母音+單子音，加er，est時(shí)單子音需再重復(fù)一次。
Big bigger biggest
Hot hotter hottest
Fat fatter fattest
(c)字尾是y，前面是輔音，把y變i，再加er,est.
dry drier driest
happy happier happiest
early earlier earliest
三個(gè)或三個(gè)音節(jié)以上及
(d)-able,-ful,-ive,-ing,-less,-ous等字尾的形容詞及末尾是ly的副詞，肯定加more，否定加less變成比較級(jí)，肯定加most，否定加least變成級(jí)。
diligent more diligent most diligent
readable more readable most readable
(less) (least)
beautiful more beautiful most beautiful
(less) (least)
active more active most active
careless more careless most careless
brightly more brightly most brightly
honestly more honestly most honestly
B.不規(guī)則變化
good better best
well better best
many(much) more most
late later(較晚的) latest(最晚的) late latter (后者的) last(最后的)
far farther(較遠(yuǎn)的) farthest far further(更進(jìn)一步的) furthest
old older oldest(比較年齡大小) old elder eldest(比較長幼次序)
3.比較級(jí)用法
(a)肯定(正面)比較：more…than，-er than～
The house is bright. 這間房子很明亮。
The house is brighter than our old one in New York. 這間房子比我們?cè)诩~約的老房子明亮。
The house is the most bright of all the houses in which we have lived. 這間房子是我們所住過最明亮的一間。
(b)否定(反面)比較：less…than～
He is strong. 他很強(qiáng)壯。
He is less strong than Joe. 他沒有喬強(qiáng)壯。
He is the least strong in his class. 他是班上最不強(qiáng)壯的。
(c)同等比較
用于肯定：as+原級(jí)+as
用于否定：not as - as或not so - as
An apple is as big as an orange. 蘋果和橘子一樣大。
The cold soup isn't as delicious as the hot one. 冷了的湯沒有熱湯好喝。
I am not so fat as you. 我沒有你那樣胖。
He is taller than I.(他比我高)
He works more diligently than I do.他比我更努力地工作。
2.原級(jí)，比較級(jí)，級(jí)的變化
A.規(guī)則變化
(a)大部分一個(gè)音節(jié)和部分兩個(gè)音節(jié)的形容詞和副詞，字尾+er變成比較級(jí)，字尾+est變成級(jí)
clear clearer clearest
small smaller smallest
narrow narrower narrowest
near nearer nearest
late later latest
(b)字尾是短母音+單子音，加er，est時(shí)單子音需再重復(fù)一次。
Big bigger biggest
Hot hotter hottest
Fat fatter fattest
(c)字尾是y，前面是輔音，把y變i，再加er,est.
dry drier driest
happy happier happiest
early earlier earliest
三個(gè)或三個(gè)音節(jié)以上及
(d)-able,-ful,-ive,-ing,-less,-ous等字尾的形容詞及末尾是ly的副詞，肯定加more，否定加less變成比較級(jí)，肯定加most，否定加least變成級(jí)。
diligent more diligent most diligent
readable more readable most readable
(less) (least)
beautiful more beautiful most beautiful
(less) (least)
active more active most active
careless more careless most careless
brightly more brightly most brightly
honestly more honestly most honestly
B.不規(guī)則變化
good better best
well better best
many(much) more most
late later(較晚的) latest(最晚的) late latter (后者的) last(最后的)
far farther(較遠(yuǎn)的) farthest far further(更進(jìn)一步的) furthest
old older oldest(比較年齡大小) old elder eldest(比較長幼次序)
3.比較級(jí)用法
(a)肯定(正面)比較：more…than，-er than～
The house is bright. 這間房子很明亮。
The house is brighter than our old one in New York. 這間房子比我們?cè)诩~約的老房子明亮。
The house is the most bright of all the houses in which we have lived. 這間房子是我們所住過最明亮的一間。
(b)否定(反面)比較：less…than～
He is strong. 他很強(qiáng)壯。
He is less strong than Joe. 他沒有喬強(qiáng)壯。
He is the least strong in his class. 他是班上最不強(qiáng)壯的。
(c)同等比較
用于肯定：as+原級(jí)+as
用于否定：not as - as或not so - as
An apple is as big as an orange. 蘋果和橘子一樣大。
The cold soup isn't as delicious as the hot one. 冷了的湯沒有熱湯好喝。
I am not so fat as you. 我沒有你那樣胖。