Unit 4 Whats the best movie theater？ Section A-比较级和最高级.ppt

1、一、规则变化,1.单音节和少数双音节单词，一般比较级在词尾加“er”，最高级在词尾加“est”。 clean-cleaner-cleanest tall-taller-tallest 2. 以不发音字母“e”结尾的单词，比较级直接在词尾加 “r”，最高级直接加“st”。 nice-nicer-nicest late-later-latest,3.以重读闭音节结尾的单词，如果词尾只有一个辅音字母时，应先双写这一辅音字母，再加“er”或“est”。 fat-fatter-fattest big-bigger-biggest 4.以辅音字母+y结尾的单词，应先改“y”为“i”，在加“er”或“est

2、”。 happy happier-happiest easy easier-easiest 5、 其他双音节单词和多音节单词，都在其前面加“more”或“most”。 beautiful-more beautiful-most beautiful,二、 不规则变化。 1.合二为一。如“坏bad”,“病ill”的比较级为worse,最高级为worst.两多many/much”的比较级为more,最高级为most.“两好good/well” 的比较级为better, 最高级为best. 2.一分为二。如“远far”的比较级为farther/further,最高级为farthest/furthest

3、.“老old”的比较级为 older/elder，最高级为oldest/eldest. 3.还有一词little“少”的比较级为less,最高级为least.,Read and compare :,young long full short small old fine easy hungry early heavy big red,younger youngest,longer longest,fuller fullest,shorter shortest,smaller smallest,older oldest,finer finest,easier easiest,hungrier h

4、ungriest,earlier earliest,heavier heaviest,bigger biggest,redder reddest,healthy many famous ill exciting carefully wet hot little few,healthier healthiest,more most,more famous most famous,worse worst,more exciting most exciting,more carefully most carefully,wetter wettest,hotter hottest,less least

5、,fewer fewest,I. 原级用法: 1. as+adj/ adv.的原级+ as (肯,否) , (not)soas (否) eg. The ruler is as long as that one. He sings as well as Jack. He doesnt sing as(so) well as Jack. 2. as much as, as many as 与一样多 eg. I have done as much work as he did yesterday. You can take as many books as you can.,II. 比较级用法: 1

6、. 比较级+than 比较级+and+比较级, 表示“越来越” eg. warmer and warmer, nicer and nicer, more and more beautiful, more and more fun the+比较级 the+ 比较级 eg. The more you read the book, the more interesting you found . 4. 比较级的修饰语有 : much, far, even, a little, a lot, a bit, rather, still, a great deal (大量) + adj./adv. 比较级

7、 5. 当比较级后没有than, 而为of the two的结构,比较级前加the. eg. The taller of the two girls is Mary.,最高级用法: 1. 形容词最高级用于in, of 或among的结构中, 形容词最高级前+the eg I am the best of (among)the three. He is the thinnest boy in my class.,2.比较级和最高级互换。 eg. Shanghai is the largest city in China.,John is thinner than any other studen

8、t in the class. John is thinner than in the class.,eg: John is the thinnest student in the class.,anyone/anybody,else,Shanghai is larger than any city in Africa.,IV. Others Alices diet was less healthy than Dannys diet. (不如) (more than 胜于) This T-shirt is the same size as that one. The red shirt is

9、five yuan cheaper than that blue one. Which is the least interesting film youve ever seen? This park is three times as big as the Summer Palace. (倍数+asas) This book cost twice as much as that one.,I think English is as as maths. D. importanter important B.more important C. most important 2.Mother ge

10、ts up in my family. early B. earlier C. earliest D. the earlier 3. The next morning Jenny got up even . early B. earlier C. earliest D. the earliest 4. Emily sings of the five girls. good B. well C. better D. best 5. In fact, Delia is a little than her elder sister. tall B. taller C. tallest D. the

11、tallest 6. Heidi does not jump so as Jane. A. high B. higher C. highest D. the highest,7. Of all the stars the sun is to us. close B. closer C. closest D. the closest 8. Barbara felt much than before after dark. cold B. colder C. coldest D. the coldest 9. This jacket is smaller than that one but its

12、 . expensive B. more expensive C. most expensive D. the most expensive 10. Our country has become in the past 20 years. more and more rich and strong more richer and more stronger C. more rich and more strong D. richer and stronger,Do some exercises,同义句转换,He is the tallest student in his class. He i

13、s _ _ _ _ student in his class. He is _ _ _ _ students in his class. Peter draws well, Lilei draws better. Lilei draws _ of the two. The tractor goes faster than the bike. The bike goes _ _ than the tractor. His cakes dearer than the twins cakes. His cake is _ _ of the three.,taller than any other,t

14、aller than the other,better,more slowly,the dearest,选择填空 1. Which does Jimmy like ,Chinese or Art? A. well B. best C. better D. much 2. The Chang jiang River is one of in the world. A. the longest river B. longest rivers C. the longest rivers D. longer rivers 3. of the two women is Mrs Brown. A. The beautiful B. The more beautiful C.More beautiful D. The most beautiful 4. My mooncake is nicer his. A. like B. with C.