1、 interesting more interesting most interesting difficult more difficult most difficult（注意：A：有词根加ly构成的形容词，在词前加more（比较级），most（最高级）如friendly-friend+ly构成, friendly more friendly most friendly； B：以形容前缀un构成的三音节形容词不适合上述情况，如unhappy-unhappier-unhappiest,untidy-untidier-untidiest ） 2.不规则变化形容词的不规则变化如下：原级比较级最高级
2、good/well betterbestbad/illworseworstlittle/ fewlessleastmuch/manymoremostfarfarther更远的（只指距离）further 更远的（指距离）；更深入的（指程度）farthest;furthestoldolder 较老的，较旧的；长辈的（指年龄、新旧、血缘）；elder长辈的（只指血缘）oldest;eldest二、比较级的用法（1）高于或低于另一方的比较运用“比较级+than”的结构可以表达一方超过或低于另一方的情况。即 ： 物体A + am / are / is + 形比 + than + 物体B.She is m
3、ore beautiful than my sister. 她比我的姐姐漂亮。This bottle is bigger than that one. 这瓶子比那瓶子大。（2）比较级+and+比较级 这种结构表示事物本身程度的逐渐增长，意为“越来越.”。She is becoming fatter and fatter. 她变得越来越胖。It is getting warmer and warmer. 天气变得越来越暖和。三、最高级的用法1.表示在三者或三者以上中程度最高最高级是表示在三者或更多者中程度最高的比较形式。此时应运用形容词的最高级，其句式为：the+形容词最高级+（名词）+表示范围
4、的短语或从句,即：物体A + am / are / is + the + 形最高级 + （名词）+比较范围（of + 人/物，in +地方）Lucy is the most beautiful girl in her school. 露西是她学校最漂亮的女孩。Jim is the thinnest of the three boys. 吉姆是这三个男孩中最瘦的。2.“最.”的其他表达方法。（1）运用比较级表达最高级的概念。 Ann is taller than any other girl in her class. Ann is taller than the other girls in
5、her class.Ann is taller than the rest of girls in her class. 以上三句表达的意思等同于最高级的含义：Ann is the tallest of the girls in her class. 安是她们班上最高的女生。四、比较级和最高级的修饰语1.比较级的修饰语 修饰比较级的常用语和短语主要有： much（.得多）,a lot（.得多）, a little（.一点）, a bit（.一点）, twice（.两倍）, five times（.五倍）等。 Do you feel much better today than yesterda
6、y? 你今天感觉比昨天好很多了吗？2.最高级的修饰语常用的最高级的修饰语有序数词the first，the second等以及almost（差不多，几乎）, nearly（差不多，几乎）。Africa is the second largest continent. 非洲是第二大洲。Amys writing is almost the best of all the students. 在所有学生中，艾米的书写几乎是最好的。五、需要注意的情况1.使用比较级时常见的错误（1）more 不可修饰比较级，但是much可以用来加强比较级，意为“.的多”、“更.”。She looks more youn
7、ger than I. （）She looks much younger than I. （）（2）比较的对象或范围出现错误。The weather of Shanghai is hotter than Beijing. （比较的对象应该是北京的天气，而不是北京）The weather of Shanghai is hotter than that of Beijing. （）上海的天气比北京的热。China is larger than any country in Asia. （） （出现了逻辑上的错误，中国就是亚洲的一个国家，应当排除在外）China is larger than any
8、 other country in Asia. （） 中国比亚洲别的国家要大。2.形容词最高级前通常要加定冠词the,而以下几种情况一般不需要加定冠词the:（1）形容词最高级前有序数词、物主代词、指示代词或名词所有格等限定词修饰时,最高级前不用the。如:The Yellow River is the second longest river in China.黄河是中国第二长河。（2）形容词最高级在句中作表语而比较范围又不明确时,最高级前不用the。They are happiest on Saturdays.他们在星期六最快乐。（3）如果两个形容词最高级并列修饰同一个名词时,第二个形容词
9、最高级前不加the。He is the youngest and tallest boy in his class.他是班上年龄最小、个子最高的男孩。 练习形容词比较级和最高级（一）一、写出下列单词的反义词1. hot 2.new_ 3. clean_ 4. high_5. heavy_ 6.cold_ 7. bad_二、写出下列形容词的比较级和最高级1. old _ _2. busy _ _3. thin _ _4. many _ _5. slow _ _ 6. delicious _ _三、用适当形式填空：1. Bob is_ （ young ） than Fred but _ （tall
10、） than Fred.2. Yingtian is not as _ （tall） asYongxian.3. Almost all the students faces are the same but Li Deming looks _ （fat） than before .4. Which is _ （heavy）, a hen or a chicken?5.- How _ （tall） is Sally?- She s 1.55 metres （tall）. What about Xiaoling?- She s only 1.40 metres _ （tall）. She is m
11、uch _（short） than Sally. She is also the _ （short）girlintheclass.6. He is _ （bad） at learning maths. He is much _ （bad） at Chinese and he is the _ （bad） at English.7. Annie says Sally is the _ （kind） person in the world.8.He is one of the_（friendly） people in the class, I think.9. A dictionary is mu
12、ch _ （expensive） than a story-book.10. An orange ia a little _ （big） than an apple, but much _ （small） than a watermelon.11.Miss Chen is _ _than Mr. Wang. （popular）12. Mr. Lin _ _ _ Mr. Brown. （sad）13. The basketball _ _ _ the baseball. （big）14. Question A _ _ _ _ Question B. （important）15. A rose _
13、 _ _ _ a weed（野草）. （beautiful）16. Toronto is _ _ city in Canada. （large）17. Playing computer games is_ _ _ of all the activities.（interesting）.18. The Nile（尼羅河） is _ _river in the world. （long）19. Good health is _ _ _thing life. （important）20. Taking a taxi is _ _ way to get to the airport. （easy）21
14、. Test 1 is _ _ _of all the tests. （difficult）22. He is _than any other boy in the class.（clever）23. She is_ than all the other students. （young）24. The window is _ _ of the two. （narrow）25. Where is the _bus-stop? （near）26. He is one of _ _ _Politicians. （famous）27. Tom drives much _ _than John. （c
15、areful）28. The white flower is _（beautiful）. The yellow flower is _ _ （beautiful）than the white flower. The red flower is the _ _ of the three.四、选择题1. She is _ than _ .A. busier / us B. busier / we C. more busy / us D. more busy / we2. Jane is _ than Betty.A. less taller B. less tallest C. less tall
16、 D. not as tall3. China is _ country in the world.A. the third largest B. the largest third C. the third large D. a third largest4. -Which is _ season in Beijing?-I think its autumn.A.good B.better C.best D.the best5- Which is_ , the sun, the moon or the earth?- Of course, the moon is.A.small B.smal
17、ler C.smallest D.the smallest6.The air in Beijing is getting much _ now than a few years ago.A. clean B. cleaner C. cleanest D. the cleanest7. Mobile phones are very popular now and they are _ than before.A. cheap B. cheaper C. cheapest D. the cheapest8I study English as_as my brother.A.hard B. hard
18、er C. hardest9. Which is _ , a bicycle or a computer?A. expensive B.more expensive C.the most expensive10. The Yellow River is one of _rivers in China. A long B longer C the longest11.She is the second _student in our class. A. tall B. taller C. talles形容词比较级和最高级（二）一、用括号里的词的适当形式填空。1. Tom can jump _（h
19、igh）. He jumps _（high） than the other boys inhis class. 2. Janet sing _（well） in her class. She can sing _（well） than her music teacher, too. 3. My father is _（handsome）. But my brother is _（handsome） than him. He is _（handsome） in my family. 4. I have _（many） books in my class. But my teacher has _
20、（many） books than _（I）. 5._（they） house is much _（old） than _（we）. 6. _（she） dances _（well） than _（he）. 7. _（he） house are _（small） of the four. 8. Does _（she） mother get up _（early） than _（you）?9. Which eats _（many）, the mouse, the dog or the horse?10. Are _（we） going to play football with _（they）?
21、二写出下列形容词与副词的比较级与最高级形式：long_ _ wide _ _ fat _ _ heavy_ _ slow _ _ few_ _ far_ _ happy_ _ unhappy_ _三.用所给词的正确形式填空：1. Of the two girls, I find Lucy the _ （clever）. 2. Gold（黄金） is _ （little） useful than iron（铁）. 3. My sister is two years _ （old ） than I. 4. Johns parents have four daughters, and she is
22、the _ （young） child. 5. The _ （cheap） bags are the not usually the best ones. 6. The short one is by far _ expensive of the five. 7. The boy is not so _ （interesting） as his brother. 8. Dick sings _ （well）, she sings _（well） than John, but Mary sings_（well） in her class. 9. She will be much _ （happy
23、） in her mew house. 10. This dress is _ that.（twice, asas, expensive） 四.选择填空：1 He feels _ today than yesterday. A. tired B. more tired C. more tireder D. much tired 2. Which do you like _, coffee, tea or milk?A. the worst B. worse C. the worse D. worst 3. Of the two toys, the child chose_. A. the ex
24、pensive one B. one most expensive C. a least expensive D. the most expensive of them 4. The line is _ than that one. A. more longer B. not longer C. much more longer D. many more longer 5. The earth is _ the moon. A. as 49 times big as B. 49 times as bigger as C. 49 times as big as D.as big as 49 times 6. The book is _ of the two.
