形容词的比较级和最高级形容词和副词比较级和最高级构成口诀结尾直加-er,-est属一般，详细构成方法逐一来侃谈。
一辅音结尾重读闭音节看，辅音双写-er,-est是习惯。
辅音加y(ly)除外有型感，按照去y,-ier, -iest方法办。
上述皆属单音部分双音段，下面把多音节规律来看看。
词前加more, most此规律唤。
规则变化到此已全都谈完。
有些不规则变化请你记全。
“双好”better, best记的宽。
“坏病”worse, worst莫记乱。
“双多”more, most不用管“老、远”两种形式别记篡，“很少”less, least记清盼。
good/well better bestmany/much more most bad/badly/ill worse worstfar farther farthest far further furthest old older oldestold elder eldestlittle less least more often一者比较用原级。
比较级限二者比。
三者三者往上比，最高级的用法起。
若要比项掌握齐，比较范围要搞细。
比较级二句型记，做出句子没问题。
若甲乙程度相同，as…as 结构体。
甲某方面不及乙，用not so/as…as表示。
上述内容全记起，比较等级谈完毕。
形容词比较级通常可分为原级、比较级、最高级三种基本形式，具体而言，它们分别以下列形式出现在句中：它们分别以下列形式出现在句中：(1)as+原级+as(2)比较级+than(3)the+最高级+of (i n)．．．需注意的原级的用法：(1)…as+原级+as 与。
一样Tom is as old as Mi ke.---Tom is the same a ge as Mike类似的单词：as big as-----the same size asas heavy/weighty as---the same weight asas red as---the same colour asas high/tall as----the same height asas long as----the same length as 否定结构有A．．。
not as+形容词原级+as B及A．．．not so+形容词原级+as B两种结构。
助动词not as/so…as解释A不如BTom is not as tall as Mike.( 汤姆不如迈克高)---Tom is shorterthan Mike.---Mike is tallerthan Tom.The TV set is not as expensive as thecomputer.The TV set ischeaper than thecomputer.The TV set is less expensive than the com puterThe computer ismore expensive th an the TV set.(2)表示倍数有．．．times as+形容词原级+as的句型。
如：This garden is ten times as large as that one.This room is twice as large as that one．(3)half as+形容词原级+as表示“……的一半”。
如：This book ishalf as thick as th at one．需注意的比较级的用法：(1)than后面接代词时，一般要用主格，但在口语中工也可换成me。
Mike is taller than I .Mike is taller than me.(口语)(2)比较级前还可以用much/far/a lot，even/still，a little/a bit来修饰。
Mike is muchtaller than I .Mike is a little tall er than II am tall, Mike is even taller.(3)表示倍数时，试比较Our room is twice as large as theirs．我们的房间是他们的两倍那样大。
Our room is twice larger than theirs．我们的房间比他们的大两倍。
(4) I’ m two years older than you．我比你大两岁。
(5)“比较级+and+比较级”表示“越来越……”。
如: He becomesfatter and fatter．(6)"The+比较级A…，the+比较级B。
”表示“越……，越……”。
如：The busier he is，the happier he feels．他越忙就越高兴。
The more we have, the more we want.The harder you study , the better marks you will get.The sooner, the better sooner or later,迟早（7）the +序数词（第二以上）+ 最高级黄河是中国第二长的河The Yellow River isthe second longest river in China.长江是中国最长的河The Yangtze River is the longest river in China.The Yangtze River is the first longest river in China.(×)（8）one of + the +最高级+名词复数Thomas Edison was one of the most famous inventors in the world. 需注意的最高级的用法：(1)常见结构有：“of+复数意义的词”表示“在……之中的”，“在……中”；“in+范围、场所”表示“在……之中”。
如：He is the tallest of/ among all the boys．China is thegreatest in theworld．句型转换：最高级---比较级China is the greatestcountry in the world. China is greater than any other country in the world.China is greater than any of the other countries in the world.Not any other country is greater than China in the world.No other country is greater than China in theworld.Tom is the tallest student in his class.Tom is taller than any other student in his class. Tom is taller than anybody else in his classNo other student is taller than Tom in his class.Not any other student istaller than Tom in his class.Nobody else is taller than Tom.No one else is taller than Tom.Any of the others is shorter than Tom in his class.Any of the other students is shorter than Tom in his class注意：1）要避免重复使用比较级。
（错）He is more cleverer than his brothe r.（对）He iscleverer than his b rother.2）要避免将主语含在比较对象中。
（错）China is larg er than any country in Asia.（对）China is larg er than any other coun try in Asia.3）要注意对应句型，遵循前后一致的原则。
The population of Sha nghai is larger than that of Beijing.The streets in Beijing are wider than in Hon gkong.It is easier to mak e a plan than to carry it out.4）要注意冠词的使用，后有名词的时候，前面才有可能有冠词。
比较：Which is larger，C anada or Australia？Which is the larg er country，Canada or Australia？She is taller than her two sisters.She is the taller of the two sisters. Compare :Tom is taller than any student in Class 10.( Tom is in Class 9)—不同范围Tom is taller than any other student in Class 10 ( Tom is in Class 10)—同一范围巩固练习：（一）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____ _____brightly______ -_____ badly _____ _______ far____ _____quickly _____ ______ happy_____ -______ unhappy________ (二)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. John’s parents have four daughters, and she is the _____ (young)child.5. The _____ (cheap) bags are the not usually the best ones.6. The short one is 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) in her mew house.10. This dress is ______ that.(t wice, as…as…, expensive)(三)选择填空：1．He feels _____ todaythan yesterday.A. tiredB. more tiredC. more tirederD. much tired2. Which do you like _____, coffee, tea or milk?A. the worstB. worseC. the worseD. worst3. Of the two toys, the child chose_____.A. the expensive oneB. one most expensiveC. a least expensiveD. the most expensive of them4. The line is ____ than that one.A. more longerB. not longerC. much more longerD. many more longer5. The earth is _____ the moon.A. as 49 times big asB. 49 times as bigger asC. 49 times as big asD.as big as 49 times6. The book is ____ of the two.A. thinnerB. the thinnerC. more thinnerD. the thinnest7. She looks _____ than she does.A. the more olderB. very olderC. much olderD. more older 8. The garden is becoming ______.A. more beautiful and moreB. more beautiful and beautifulC. more and more beautifulD. more beautiful and beautifuler9. They competed（比赛）to see who could work _____.A. the fastest and bestB. the faster and the betterC. fastest and betterD. faster and better10.______ hurry, _______speed.A. More, lessB. Much, littleC. The more, theless D. The much, the little11. This kind of coffee is different ______.A. and it is also betterB. and better than the otherC. but also than othersD. from the other, and better(四)翻译句子：1．本书跟那本书一样有趣。