剑桥KET语法：形容词的比较级和最高级

　　一般来说，形容词具有原级、比较级和最高级三个比较等级，而形容词的比较等 级变化有规则和不规则两种。

　　1、规则变化

　　(1)单音节在形容词词尾加-er和-est,分别构成比较级和最高级，如：

　　(2)单音节以-e 结尾，直接在词尾加-r 和-st,分别构成比较级和最高级，如：

　　(3)如果闭音节单音节词的词尾只有一个辅音字母，要先双写该辅音字母，再加-er和-est, 分别构成比较级和最高级，如：

　　(4)少数以-y、-er、ow、-ble结尾的双音节词，也可以加-er和-est构成比较级和最高级。以-y结尾的词，如果-y前是辅音字母，则变y为i,再加-er和-est。以-e结尾的词只加-r和-st,如：

　　(5)其他双音节词和多音节词皆在前面加单词 more 和 most,分别构成比较级和最高级，如：

　　2、不规则变化

　　(1)有少数形容词的比较级和最高级的变化是不规则的，如：

　　(2)无等级形容词

　　英语中有一小部分形容词，它们本身具有绝对的含义，因此没有比较级和最高级形式 常见的有：

　　perfect 完美的 single单一的 dead死的

　　empty 空的 round 球形的 square 正方形的

　　straight 直的 equal 平等的 alone单独的

　　final 最终的 unique 唯一的，独特的

　　3、用括号内所给单词的正确形式填空。

　　1.My sister is three years ________ (old)than me.

　　2.Mike is as ________ (fat)as John.

　　3.This town is much ________ (good)than before.

　　4. Who is ________ (tall),you or Tom?

　　5.I have ________ (many)books than you

　　6.It gets ________ and ________ (cold)when winter comes.

　　7.Lily is ________ (young)than her brother.

　　8. The dress is much ________ (cheap)than the coat.

　　9.You should be ________ (careful)than before

　　10.It is the ________ (expensive)bag I have ever seen.

　　11.Mary is the ________ (tall)in my class.

　　12.Which is the ________ (good)season in Shanghai?

　　4、写出下列形容词的比较级和最高级。

　　1.good ________ ________　　2.bad ________ ________

　　3.little ________ ________　　4. much ________ ________

　　5.long ________ ________　　6.easy ________ ________

　　7.happy ________ ________　　8.big ________ ________

　　9.fat ________ ________　　10.hard ________ ________

　　11.nice ________ ________　　12.hot ________ ________

　　13.tall ________ ________　　14.sad ________ ________

　　5、用方框中单词的比较级形式完成下面的句子。

　　expensive　　much　　tall　　cold　　old　　heavy

　　1.The weather today is ________ than it was yesterday.

　　2.I can afford a pen but not a bike.A bike is ________ than a pen.

　　3.I am 40 kilograms.Lily is 45 kilograms.Lily is ________ than me.

　　4.Tom is 1.7 metres tall.Jack is 1.8 metres tall.Jack is ________ than Tom.

　　5.I have ten dollars.John has five dollars.I have ________ money than John.

　　6.I am 15 years old.Emily is 12 years old.I am ________ than Emily.

　　6、划掉斜线部分中错误的单词。

　　1.This is the biggest/bigger hospital in the city.

　　2.He is smarter/smartest than me.

　　3.In his opinion,English is easierleasiest than Chinese.

　　4.This room is much bigger/biggest than that one.

　　5.He is taller/tallest than any other boy in our class.

　　6.Our classroom is bright/brighter than theirs.

　　7.The population of Shanghai is larger/large than that of Tianjin.

　　8.Jim is the best/good friend of mine.

　　9.Mary is the youngestyounger of the three students.

　　10.The busier he is,the happier/happy he feels.