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知识要点
1)英语中大多数形容词、副词是可以分等级的，一般有三个等级：原级，比较级和最高级。形容词、副词的本来形式就是形容词的原级。如：John is a tall boy.两者间进行比较用到形容词比较级。如：Jim is taller than John.三者或者三者以上进行比较用形容词的最高级。Mike is the tallest of the three boys.(形容词最高级前面要加定冠词the)
2).形容词、副词比较级和最高级有规则变化和不规则变化
规则变化
①单音节或双音节的形容词（或副词）比较级＋er最高级＋est small－smaller－smallest等
②以e结尾的词，比较级＋r，最高级＋st即可nice－nicer－nicest
③以辅音字母＋y结尾的，变y为i＋er或est easy－easier－easiest
④双写最后一个辅音字母＋er或est hot－hotter－hottest
⑥ 一些双音节及多音节形容词或副词前要加more和most，如：
difficult---more difficult---most difficult
不规则变化：
good/well－better－best,bad－worse－worst many/much－more－most little－less－least
far－further －furthest（表示程度） far－farther－farthest（表示远近） old－older－oldest（表新旧） old－elder－eldest（表兄弟姊妹之间的长幼）
3).比较级前的修饰词：a little, a lot, much, even; far; still
4)形容词、副词比较级的特殊用法
①形容词/副词比较级+than+ any other+单数名词(+介词短语)"表示"比同一范围的任何一个人/物都……"，含义是"最……"。
例如，Mike gets to school earlier than any other student in his class.
= Mike gets to school earlier than any of the other students in his class. = Mike gets to school earlier than the other students in his class. = Mike gets to school earliest in his class.注意：Mike gets to school earlier than any student in Tom's class.
②"the+形容词比较级+of the two+……"表示"...是两者中较…的"。
如，Look at the two boys. My brother is the taller of the two.
③"比较级+and+比较级"表示"越来越……"。He is getting taller and taller.
④"the+比较级，the+比较级"表示"越…,越…,"。The more careful you are，the fewer mistakes you'll make
5).最高级常用句型结构
①"主语+be+ the+形容词最高级+单数名词+in/of短语"表示"……是……中最……的"。
如，Tom is the tallest in his class./of all the students.
②"主语+be+ one of the+形容词最高级+复数名词+in/of短语"表示"…是……中最……之一"。
如，Beijing is one of the largest cities in China.
③序数词+最高级
Hainan Island is the second largest island in China.
练习：
I.写出所给词的反义词。
1.young________ 6.better___________
2. white________ 7. longer__________
3. big__________ 8. thinner_________
4. left_________ 9. far_____________
5.fast_________ 10. light__________
II. 用所给词的正确形式填空。
1. Maria is ________(thin). Lucy is __________(thin) than Mary.
2. Mike is ____________________(heavy) boy in his class.
3. Tom is as_________ ( tall) as Jim.
4. I am much _________( well) than yesterday.
5. This skirt is ___________________( expensive) of the three.
6. The weather today is ___________(hot) than it was yesterday.
7). Lucy writes __________________(careful) than her brother.
8)Today is ___________(busy) day this week.
9)That is ___ (easy ) of all.
10). He is ____ (clever ) boy in the class.
11). John is _____ ( short ) than Tom.
12). This box is ____ ( heavy ) than that one.
III、根据所给汉语完成句子
1. _____ ____exercise you take, _____ _____ (你锻炼越多就会越强壮) you will be.
2. Who jumped _______ (最远) of all in the long jump?
3. Lucy says she will write to you back ____ ____ ____ ______（尽可能快地）。
4. There are ____ ______ ______ (如此多的人) that we can't see each other.
5.-_____ _____ _____ (何时何地) shall we meet?
-Let's meet outside the school gate tomorrow afternoon.
IV、单项选择
1. -Tom is the ____ one I want to work with. He is always complaining.
- Be more patient. He is still a good boy.
A. best B. last C. first D. only
2. We want to go to Japan to have a ____ study.
A. farther B. farthest C. further D. furthest
3. The meeting hall is ____ to hold 5000 people.
A. large enough B. enough large C. so large D. too large
4. When spring comes, the trees get ____.
A. green and green B. green and greener
C. greener and green D. greener and greener
5. My _____ brother is three years ____ than I .
A. old; older B. elder ; older C. older; elder D. old; elder
6. He's ____ to hear the bad news.
A. sorry B. bad C. happy D. well
7. The snow is over one meter ____ when it's winter here.
A. long B. high C. thick D. this
8. This book is _____ worth seeing again.
A. very B. quite C. well D. much
9. My sister sat ____ to me to listen to the story.
A. close B. closely C. nearby D. with
10. The sports car is running ____, It seems to be flying.
A. fast and fast B. more and fast C. more and faster D. faster and faster
11. You run ____ for us to catch up with you.
A . too fast B. so fast C. too slowly D. so slowly
12. Don't look _____ the window? We're having a class.
A. out of B out from C. down of D. out.
13. This year our school is ____ than it was last year.
A. much more beautiful B. much beautiful
C. the most beautiful D. beautiful
14. _____ the ground is, ____ air becomes.
A. The high; the thin B. The highest; the thinnest
C. The higher; the thiner D. The higher; the thinner
15. John is ____ of the two boys.
A. tall B. tallest C. the tallest. D. the taller.
16. -Why does Peter like moon cakes with nuts instead of the ones with eggs?
-Because he thinks the moon cakes with nuts are ____.
A. cheap B. dear C. worse D. nicer
17. She is ____ than I
A. a head taller B. a taller head C. taller a head D. head taller
18. Paris is one of _____ cities in the world.
A. more beautifully B. more beautiful C. the most beautifully D. the most beautiful
19. Shanghai is the first _____ city in China.
A. big B. biggest C. the big D. the biggest
20. -Mr Zhou, of all the students in our group, who lives ___?
-I think Li Lei does.
A. far B. farther C. farthest D. the farther
21. Bob never does his homework _____ Mary, he makes lots of mistakes.
A. so careful as B. as carefully as C. carefully as D. as careful as.
22. My sister is good at sports, She can jump ____ than me.
A. highest B. very high C. too high D. much higher
23.The Yellow River is one of ___ in China.
A. the longest rivers B. the longer river C. the longest river D. the long river
24.I don't feel ___ to go to work today. I'm ill.
A. good enough B. well enough C. enough well D. enough good
25.Be quiet, class! I have ___ to tell you.
A. important anything B. important something C. anything important
D. something important
V、同义句转换
1. Math is the most difficult of all the subjects.
Math is ____ difficult than _____ other subject.
Math is _____ difficult than _____ other subjects.
2. Joe isn't as tall as Lucy..
Joe is _____ than Lucy.
3. Kate is 10 years old. Tom is 12 years old.
Kate is ____ _____ _____ _____ Tom.
Tom is ____ ______ _____ _____ Kate.
4.The bag is too expensive for me to buy.
The bag is _____ _____ ______for me to buy.
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