表示人或事物的属性、特征或状态的词

a word that describes a person or thing.

1 . 结构特点

以 -able, -al , -ful , -ic , -ish, -less , -ous , -y等结尾的词，一般是形容词；

2 . 句法特点

大多数形容词都可以做定语，在be，look，seem等词后面作定语；

1 . 用做定语

Lily is a beautiful girl.

The new student comes from Japan.

2 . 用做表语

My car is is very expensive.

The English story is very interesting.

3 . 用做宾语补足语

Don't keep the door open.

His success made him happy.

We finally found the dictionary very useful.

4 . "the + 形容词" 表示一类人或事物，相当于名词，用做主语或宾语

The old often think of old things.

The new always take the places of the old.

5 . 也可以用做状语

Please speak loud and clear.

These soldiers spent three days in the cold weather, cold and hungry.

6. 少数形容词只能做表语，不能做定语

常见的有：ill , asleep, awake , alone , alive , well , worth , glad , unable , afraid 等；

Don't be afraid.

The old man was ill yesterday.

This place is worth visiting.

7 . 少数形容词只能作定语，不能作表语

包含little, live , elder, eldest

My elder brother is a doctor.

This is a little house.

Do you want live fish or dead one ?

1、单音节形容词的比较级和最高级是在词尾加-er ，-est构成

great, greater , greatest

2、 以-e 结尾的单音节形容词的比较级和最高级是在词尾加 -r ，-st构成

wide , wider , widest

3、少数以 -y，-er，-ow，-ble结尾的双音节形容词的比较级和最高级是在词尾加 -er ，-est构成

clever , cleverer , cleverest

4、以 -y结尾，但 -y前是辅音字母的形容词的比较级和最高级是把 -y 去除，加上 -ier ， -est构成

happy , happier , happiest

5、以一个辅音字母结尾 其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母，然后再加-er ，-est

big , bigger , biggest

6、某些双音节和多音节形容词的比较级和最高级需用more , most加在前面来构成

careful , more careful , most careful

beautiful , more beautiful , most beautiful

difficult , more difficult , most difficult

7 、常用不规则变化形容词的比较级和最高级