形容词和副词的比较级和最高级1)原级，即原形。
2)比较级，表示“较……”或“更……一些”的意思。
3)最高级，表示“最……”的意思。
(1)规则变化单音节词和少数双音节词：【1】一般在词尾加-er或-estcold colder coldeststrong stronger strongestfast faster fastestslow slow slowest【2】以字母e结尾的形容词，加-r或-stNice nicer nicestlarge larger largest【3】重读闭音节词只有一个辅音字母时，应先双写辅音字母，再加-er或-est big bigger biggestthin thinner thinnestHot hotter hottest【4】以“辅音字母+y”结尾的双音节词，先改“y”为“i”，再加-er或-est easy easier easiesthappy happier happiestearly earlier earliest【5】少数以-er，-ow 结尾的双音节词clever(聪明的)未尾加-er，-est clever cleverer cleverestnarrow narrower narrowest【6】多音节词和部分双音节词：在词前加more或mostDelicious more delicious most deliciousInteresting more interesting most interestingeasily more easily most easilycarefully more carefully most carefully(2)不规则变化good/well better bestbad/badly worse worstmuch/many more mostlittle less leastfar farther/further farthest/furthestMr.King is taller than Mr.ReadThis moon cake is nicer than that one。
The tractor is going faster than the bike。
其他几个时，用最高级。
最高级的前面一般要加定冠词the。
后面可带of（in）短语来说明比较的范围。
She is the youngest in the class.注：在形容词和副词的比较级前，有时可以用much，a little等来修饰，如：much better、a little taller形容词和副词的比较级和最高级的练习题一、用所给形容词和副词的适当形式填空。
1、Which lesson is __________ (difficult) in Book?2、Alice writes _____________(carefully ) than I.3、This story is ____________( interesting) than that one.4、That was one of _________( exciting) moments in 2008.5、This kind of food must be ________ ( delicious )than that one.6、Beihai park is one of ____________ (beautiful ) parks in Beijing.7、Who’s ________(careful), Tom, Jim or Kate?8、That is ________(easy) of all.9、He is __________(clever )boy in the class.10、She is _________(pretty) girl in the group.11、Which film is __________ (interesting),this one or that one?12、Can you show me________(near) shop here?13、This bridge is as _______ ( long) as that one, but it is much ______ (wide) than that one.14、I think English is one of _________ (important )subjects in middle school.15、Of the two boys，Tom is __________ one. （short）二、在下列句子中填入than, as ,of 或in.1、This table is as big _____ that one.2、The red book is bigger _______ the blue one.3、John is the best student _______ the class.4、The lesson is more interesting ________ that one.5、The apple is the largest _________ all the apples.三、根据汉语提示补全句子，每空限填一词。
1、这本书比那本书好多了。
This book is _____ _____ _______ that one.2、这块月饼大，那块更大。
This moon cake is ________.That one is _______.4、所有铅笔中这支铅笔最长。
The pencil is _____ _____ ______ _________.5、在学校里我们英语老师最忙。
Our English teacher is ____ _______ in our school.6、两个男孩中李雷个子高些。
Li Lei is ______ _____ _______ the two boys.8、黄河是中国第二长河。
The Yellow River is ______ ______ ______ river in China.9、梅梅的帽子比苗苗的新。
Meimei’s hat is _______ ______ ________.10、夏天上海比吉林热。
In summer it is _____ in Shanghai _______ in Jilin.四、单项选择。
（）1._______ of the two women is Mrs. Brown.A. The beautifulB. The more beautifulC. More beautifulD. The most beautiful （）2.He jumps ______ of the three.A. farB. furtherC. farthestD. furthest（）3. There are _____ girls in Class Two than in Class Four.A. moreB. nicestC. mostD. best（）4.No one is ____ Mary in the class.A. so tallest asB. as taller asC. so high asD. so tall as（）5.The weather in Shenyang is even colder_______.A. than that in BeijingB. than BeijingC. than in BeijingD. as that in Beijing （）6.Peter is ______ than his brother.A. more fatterB. much fatterC. very fatD. the fattest（）7.Whose sweater is _____ of all?A. cheaperB. cheapC. cheapestD. the cheapest（）8.---- Which month has _______ days in a year? ---- February.A. fewerB. moreC. the fewestD. the most（）9.The horse is getting old and can’t run ______ it did.A. as faster asB. so fast thanC. fasterD. so fast as（）10.Everything is _____ on the moon than on the earth.A. much more lighterB. much more lightC. more lighterD. much lighter（）11.Mu.Hunt is _____older than his friend.A. someB. veryC. quiteD. much（）12.This apple is ____ greener than that one.A. littleB. a little C more D. many（）13. The coat bought last week is too big for me . I’d like to change it for a _______ one .A. smallB. largeC. nicerD. smaller（）14. She is ________ than ________ .A. busier / usB. busier / weC. more busy / usD. more busy / we（）15. Jane is ________ than Betty.A. less tallerB. less tallestC. less tallD. not as tall（）16. China is ________ country in the world.A. the third largestB. the largest thirdC. the third largeD. a third largest（）17. ----Which is ____ season in Beijing? ----I think it's autumn.A. goodB. betterC.best D. the best（）18．--- Which is__________ , the sun, the moon or the earth?--- Of course, the moon is.A. smallB. smallerC.smallest D. the smallest（）19.The weather in the earth is getting ______ and ______A. warm；warmB. warmer；warmC. warmer；warmer D. warm；warmer（）20. Mobile phones are very popular now and they are _____ than before.A. cheapB. cheaperC. cheapestD. the cheapest（）21．I study English as _______as my brother.A. hardB. harderC. hardestD. hardly（）22. Which is _____ , a bicycle or a computer?A. expensiveB. more expensiveC. the most expensive（）23. The Yellow River is one of ______rivers in China.A. longB. longerC. the longest（）24.She is the second _______student in our class.A. tallB. tallerC. tallest五、下列各句有一处错误，请找出并改正。