形容词和副词的比较级和最高级变形规律及测试

形容词和副词比较级的变化规则

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→nar rowest

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→hott est 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 b eautiful

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

练习

一、语音

选出每组单词中划线部分读音与其余三个不同的单词。

1. （）A、worker B、workbook C、worm D、doctor

2. （）A、weight B、height C、eight D、eighty

3. （）A、than B、traffic C、late D、animal

4.（）A、near B、year C、bear D、hear

5. （）A、more B、work C、world D、worm

二、选择填空。

( ) 1.Are you as _____ as your classmate, Xiao Ming?

A. tall

B. taller

C. younger

( ) 2.______ Saturday morning, they went for a_______

A. In, walk

B. On, walk

C. At, walking

( ) 3.This cat is _____ than that one.

A. thin

B. thinner C thiner

( ) 4. Whose ruler is longer, _____?

A. yours or his

B. your or his

C. yours or her

( ) 5. --What do your parents do after supper?

--They take the _____ dog for a walk.

A. cute

B. red

C. well

( ) 6.--_____ your grandfather 80 years old?

--Yes, he _____.

A. Is, does

B. Are, is

C. Is, is

三、用括号里所给单词的正确形式填空。

I’m _____ (tall) than David.

Who’s _____ (young), you or your brother?

Which is _____ (long), Chang Jiang River or the Yellow River?

David’s bag is _____ (heavy) than _____ (I).

Gao Shan runs______(fast)than his brother.

Is your hair as ________ (longer, long)as hers?

Yang Ling' flies a kite______(higher\taller)than David’s.