A.“比較級(jí)+ and +比較級(jí)”或“more and more +原級(jí)”表示“越來越……”.
It is getting cooler and cooler.
天氣越來越?jīng)鏊?
The wind became more and more heavily.
風(fēng)變得越來越大.
B.“the +比較級(jí)……,the+比較級(jí)”,表示“越……越……”.
The more money you make,the more you spend.
錢你賺得越多,花得越多.
The sooner,the better.越快越好.
C.表示倍數(shù)的比較級(jí)用法：
a.A is …times the size /height/length/width of B.
The new building is three times the height of the old one.
這座新樓比那座舊樓高三倍.(新樓是舊樓的四倍高)
b.A is …times as big /high/long/wide/large as B.
Asia is four times as large as Europe.
亞洲是歐洲的四倍大.(亞洲比歐洲大三倍)
c.A is …times larger /higher/longer/wider than B.
Our school is twice bigger than yours.
我們學(xué)校比你們學(xué)校大兩倍.
大多數(shù)形容詞（性質(zhì)形容詞）和副詞有比較級(jí)和最高級(jí)的變化,即原級(jí)、比較級(jí)和最高級(jí),用來表示事物的等級(jí)差別.原級(jí)即形容詞的原形,比較級(jí)和最高級(jí)有規(guī)則變化和不規(guī)則變化兩種.
1) 規(guī)則變化
單音節(jié)詞和少數(shù)雙音節(jié)詞,加詞尾-er,-est來構(gòu)成比較級(jí)和最高級(jí).
構(gòu)成法 原級(jí) 比較級(jí) 最高級(jí)
一般單音節(jié)詞 tall(高的) taller tallest
末尾加-er,-est great(巨大的) greater greatest
以不發(fā)音的e結(jié)尾和以- le結(jié)尾的雙音節(jié)詞只加-r,-st
nice(好的) nicer nicest ,able（有能力的) abler ablest
以一個(gè)輔音字母結(jié)尾的閉音節(jié)單音節(jié)詞,雙寫結(jié)尾的輔音字母,再加-er,-est
big(大的) bigger biggest
hot熱的) hotter hottest
"以輔音字母+y"結(jié)尾的雙音節(jié)詞改y為i,再加
-er,-est easy(容易的)
easier easiest ,busy(忙的) busier busiest
少數(shù)以-er,-ow結(jié)尾的雙音節(jié)詞末尾加-er,-est
clever(聰明的) cleverer cleverest
narrow(窄的) narrower narrowest
其他雙音節(jié)詞和 important(重要的)
多音節(jié)詞,在前 more important
面加more,most most important
來構(gòu)成比較級(jí)和 easily(容易地)
最高級(jí).more easily
most easily
2) 不規(guī)則變化
原級(jí) 比較級(jí) 最高級(jí)
good(好的)/ better best
well(健康的)
bad (壞的)/ worse worst
ill(有病的)
old (老的) older/elder oldest/eldest
much/many(多的) more most
little(少的) less least
far (遠(yuǎn)的) farther/further farthest/furthest
比較級(jí)形容詞或副詞 + than
You are taller than I am./ You are taller than me.
The lights in your room are as bright as those in mine.
注意：
1）要避免重復(fù)使用比較級(jí).
(錯(cuò)) He is more cleverer than his brother.
(對(duì)) He is more clever than his brother.
(對(duì)) He is cleverer than his brother.
2）要避免將主語含在比較對(duì)象中.
(錯(cuò)) China is larger that any country in Asia.
(對(duì)) China is larger than any other country in Asia.
3）要注意對(duì)應(yīng)句型,遵循前后一致的原則.
The population of Shanghai is larger than that of Beijing.
It is easier to make a plan than to carry it out.
4）要注意冠詞的使用,后有名詞的時(shí)候,前面才有可能有名詞.
比較：Which is larger,Canada or Australia?
Which is the larger country,Canada or Australia?
She is taller than her two sisters.
She is the taller of the two sisters.
可修飾比較級(jí)的詞
1）a bit,a little,rather,much,far,by far,many,a lot,lots,a great deal,any,still,even等
2）還可以用表示倍數(shù)的詞或度量名詞作修飾語.
3）以上詞(除by far)外,必須置于比較級(jí)形容詞或副詞的前面.