形容词的比较级和最高级
大多数形容词有比较级等级的变化，即原级、比较级和最高级，用来表示事物的等级差别，原级即形容词的原形，比较级和最高级有规则变化和不规则变化两种。
1. 规则变化
单音节词和少数双音节词，加词尾-er, -est来构成较级和最高级。
其他双音节词和多音节词，在前面加more, most来构成比较级和最高级。
2. 不规则变化
形容词比较级最高级练习题
一、 写出下列形容词的比较级和最高级
1. old ________ ________
2. busy ________ ________
3. thin ________ ________
4. many ________ ________
5. fast ________ ________
6. bad ________ ________
7. tall ________ ________
8. pretty ________ ________
9. tiny ________ ________
10. small ________ ________
11. big _____ ___ ________
12. good ___ _____ ________
13. fast ____ ____ ________
14. heavy ____ ____ ________
15. cheap ______ __ ________
16. strong _____ ___ ________
17. hairy ___ _____ ___ _____
18. fat ____ ____ ___ _____
19. early _____ ___ ______ __
20. beautiful __ ______ ____ ___
二、 用适当形式填空：
1. Bob is _____ ___( young )than Fred but he is __ __(tall) than Fred.
2. He is ______ (bad) at learning maths. He is much _______ (bad) at Chinese and he is the _________ (bad) at English.
3. Annie says Sally is the ________ (kind) person in the world.
4 A dictionary is much ____ _____ (expensive) than a story-book.
5. An orange ia a little ______ (big) than an apple, but much ________ (small) than a watermelon.
6. Playing computer games is______ _____ _____ of all the activities.(interesting).
7. The Nile(尼羅河) is ______ ________river in the world. (long)
8. Good health is _______ _______ ________thing in life. (important)
9. Taking a taxi is ______ _______ way to get to the airport. (easy)
10. She is___ ___ than all the other students. (young)11. Where is the _____ ___bus-stop? (near) 12. Tom drives much ________ ________than John. (careful)
13. The white flower is ________(beautiful). The yellow flower is ______ _______ (beautiful)than the white flower. The red flower is the _____ ______ of the three.
三、 选择题 1. She is ________ than ________ . A. busier / us B. busier / we C. more busy / us D. more busy / we 2. China is ________ country in the world. A. the third largest B. the largest third C. the third large D. a third largest 3. -Which is ____ season in Beijing?-I think it's autumn.
A.good B.better C.best D.the best
4．- Which is__________ , the sun, the moon or the earth?-- Of course, the moon is.
A.small B.smaller C.smallest D.the smallest
5.The air in Beijing is getting much _____ now than a few years ago.
A. clean B. cleaner C. cleanest D. the cleanest
6. Mobile phones are very popular now and they are _____ than before.
A. cheap B. cheaper C. cheapest D. the cheapest
7 Which is _____ , a bicycle or a computer?
A. expensive B.more expensive C.the most expensive
8. The Yellow River is one of ______rivers in China
A long B longer C the longest
9.She is the second _______student in our class.
A. tall B. taller C. tallest
10. Which is ________, Benny, Peter or Bob?
A. taller B. the tallest C. more tall
11. Tom is ____ student in our class.
A. stonger B. strongest C. the strongest
12. The rat is ____ than the mouse.
A. smaller B. bigger C. the biggest
13. The fly has ____ legs than the cockroach. The bee has ____ legs.
A. hairy, hairy B. hairier, hairiest C. hairier, the hairiest
14. Your car is ____ today than it was yesterday.
A. shiny B. shinyer C. shinier
15. Dolly is older than Amy, but she is ____ than Amy.
A. taller B.stronger C. shorter
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