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1、形容词、副词的原级、比较级、最高级用法一、构成规则（规则变化和不规则变化）1规则变化构成方法原级比较级最高级1、一般在词尾+er, esttallshorttallershorter tallestshortest2、以不发音的e结尾的+r, stnicelargenicerlargernicestlargest3、重读闭音节、词尾只有一个辅音字母，双写这个辅音字母再+er, estbig fatthinhotwetbiggerfatterthinnerhotterwetterbiggestfattestthinnesthottestwettest4、以辅音字母+y结尾的，先把y改为i，再+e
2、r, estbusyhappydirtyheavybusierhappierdirtierheavierbusiesthappiestdirtiestheaviest5、部分双音节词和多音节词，在前面+more， mostusefulcareful importantinterestingdifficultdangerousmore useful more careful more importantmore interestingmore difficultmore dangerousmost usefulmost careful most importantmost interesting
3、most difficultmost dangerous2、不规则变化原级比较级最高级good/wellbad/badly/illmany/muchlittlefar oldbetterworsemorelessfarther / furtherolder / elderbest worstmostleastfarthest / furthestoldest / eldest注意（了解）：farther、farthest 多指距离更 如：He jumps farther than tom.further、furthest多指程度上更 如：further study “更深的学习或进一步研究”）
4、older、oldest 指新旧、年龄大小或年代久远 He is older than me.elder、eldest 指（家庭成员中的）兄弟姐妹的长幼关系 This is my elder brother （哥哥）.二、用法1、原级用法：不作比较，原级前常用very，so，quite，too，pretty， kind of ，a little，a bit等修饰。This book is very interesting.同级比较： as + 原级 + as （ 和一样） not as/so +原级 + as （不如 ）例： He is as tall as me.Tom is not as
5、tall as Jim.= Tom is than Jim.= Jim is than Tom.This book is not as interesting as that one.= This book is interesting that one.= That book is interesting this one.2、比较级用法：两个人/物进行比较。结构： 比较级 + than，（表：比更）比较级前常用修饰词：much，a lot，far，even，still a little，a bit。例：This book is much more interesting than that
6、 one.We are 3 years older than Jim.Tom is better than me at swimming.=Tom is better at swimming than me.注意：注意比较对象的一致：（人比人，物比物）例： I have shorter hair than her.=My hair is shorter than .比较级 and 比较级（结构：er and er,more and more） 越来越。It is bigger and bigger.Our school is more and more beautiful.the + 比较级，
7、the + 比较级 越就越。A：How much do you want？B：The more ，the better.The harder you study ，the better grades you will get.the + 比较级 + of the two 两个中，有个更Tom is the taller of the two boys.My mother is （ tall ）of my parents.Lily is （outgoing） of the twins.more + 形/副，表示： 比 更；less + 形/副，表示：不如 （上下两句型可以互相转换） Mary i
8、s more beautiful than Ruhua. Ruhua is beautiful than Mary.数量比较： 较多 more than 较少 fewer/lessthan I have more books than you，and I have more money than you.= You have books than me，and you have money than me.同类物进行比较： 后者名词 单数用the one，that one代替，复数用the ones， those ones 代替，不可数名词用 that 代替。This book is newe
9、r than the one/that one on the desk.These books are newer than the /those on the desk.The weather in Beijing is colder than that in Sichuan now.选择疑问句 常用句型： Which / Who + 动词 + 比较级，A or B ？Which is better,the blue pen or the red pen？Who is taller，Jim or Tom？3、最高级用法：三者及以上的人/物进行比较，形容词最高级前必须带the，副词最高级前可以
10、不带the，常见标志性短语为：of / in 。常见句型： Kate is the tallest girl of the three （girls）.Kate is the tallest girl in her class.注意：one of the + 最高级 + n复数，表示：最之一。Shanghai is one of the largest cities in the world.the + 序数词 +最高级 + n单数，表示：第几长/宽/高The Yellow River is the second longest river in China.最高级选择疑问句常见现象Which
11、 is the biggest city，Beijing ，Shanghai or Chengdu？最高级 转换为 比较级：Jim is the tallest student in his class.=Jim is taller than any other student in his class.=Jim is taller than the other students in his class.判断：Shanghai is larger than any city in China.(、)更改方法： 比较级+than +any other+单数 +the other+复数 +any
12、one else +any of the other+复数Shanghai is larger than any other city in China.Shanghai is larger than the other cities in China.Shanghai is larger than any of the other cities in China.Shanghai is larger than any city in Jiangsu.Mike is taller than _in his class.A. any boy B. all the boysC. anybody D
13、. any other boy形容词最高级前如果有my，our等形容词性物主代词 或名词所有格修饰时，不用the。Tom is my best friend，and I am Toms best friend.三、其他句型（了解，会翻译就行） 1. A+倍数+as+原级+as+BTom is twice as old as Kate. Tom runs twice as fast as Mike.2.倍数+比较级+thanThe river is twice longer than that one.The river is three times longer than that one.单
14、项选择1. Which does Jimmy like _, Chinese or Art? A well B. best C. better D. much2. The Changjiang River is one of _in the world.A. the longest river B. longest rivers C. the longest rivers D. longer rivers3._of the two women is Mrs Brown.A. The beautiful B. The more beautiful C. More beautiful D. The
15、 most beautiful4. He jumps _of the three.A. far B.the further C .farthest D. furthest5. My hair is longer than_ A. my sister B. Kate C. my brothers D. Lucys6. There is _paper here .Please bring some. A. little B. less C. fewer D. a little7. The pen is _than that one. A. more cheap B. cheap C. much c
16、heaper D. quite cheaper8. Tom speaks Chinese _better than Jimmy. A. more B. very C. a lot of D. much9. There are _ girls in Class Two than in Class Four. A. more B. nicest C. most D. best10. Its too_ for you to do that. A. easy B. more dangerous C. harder D. the easiest11. Who has _apples now Jim, L
17、ily or Lucy?A. much B. biggest C. better D. the most12. You have more rulers than me. But _are nicer than_ .A. mine, you B. mine, yours C. my, yours D. my, your13. Tingting is _than Meimei, but Meimei is _than Tingting.A.tall, stronger B.taller,strongest C.tallest,strong D.taller, stronger14. Mother is _in my family.A. busy B. busier C. the busiest D. more busy15._exercise you take, _youll be.A. the fewer, the fatter B. the less , the fatterC. few , the fatter D. little , the fatter