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1、1 形容词和副词的比较级和最高级讲解与练习形容词和副词的比较级和最高级讲解与练习 一、变化规则 一般的比较级和最高级在形容词或副词后加-er 或-est， 如：small - smaller - smallest 以不发音-e 结尾的形容词或副词直接加 r 或 st， 如:large - largest - largest 重读闭音节词尾是一个辅音字母的，需双写该辅音字母，再加-er 或-est。 以辅音字母加 y 结尾的形容词和副词，把“y”变“i” ，再加 er 或-est. busy-busier-busiest happy-happier-happiest 一些双音节及多音节形容词或副
2、词前要加 more 和 most，如： slowly - more slowly - most slowly difficult-more difficult-most difficult beautiful-more beautiful-most beautiful 还有一些不规则的变化： good / well-better-best many/much-more-most bad / ill / badly -worse-worst little-less-least far - farther / further - farthest/ furthest 2 二、形容词和副词的等比句型
3、 asas 和一样 Im as tall as you. not as(so)as 不和 一样（在否定句中常用 so 来代替 as）如， I cant run so fast as you. 另外 asas possible 为固定结构，如，as soon as possible, as quickly as possible 等。 在以上两个句型中形容词或副词一定要用原级。 练习：她吃的不如她爸爸多。 _ 我的房间不如你的干净。_ 你必须跟他一样认真。_ asas 前还可以加倍数,如: The room is two times as large as that one. 三、比较级（两者之
4、间） (1) 两者相比: Which is+比较级,A or B? 如: Which is bigger, the sun or the moon? (2)比较级+ than. 如: Mike is taller than John. (3)有of the two”, 用 the+比较级. 如: Lucy is the more careful of the two. (4) 比较级前可用 much/a lot /far/ a little /a bit/even 等修饰. 3 如: This book is much more interesting than that one. The b
5、louse I bought yesterday is a little less expensive. To play basketball is far more enjoyable to the boy. (5) 比较级+and+比较级,表“越来越” It becomes warmer and warmer. (6)“ the+比较级，the+比较级”,表“越，越” The higher you stand, the farther you will see. 练习： 1. 你吃的越多, 就会越胖. _ 2. Mike looks _ than Paul, but they are of
6、 the same age. A. youngest B. the youngest C. younger D. very younger 四、最高级(三者或三者以上) 1)三者或三者以上相比较用“the最高级名词范围（of/all+-） ” 。 例如： This is the cleanest place of the city.这是这个城市最清洁的地方。 Hu Yun is the fastest of all the girls in our class.胡云是我们女生 中跑得最快的 2）表示“最之一” ，用“one of the+形容词最高级复数名词” 。 例如： The Great
7、Wall of China is one of the greatest buildings in the world. 中国的长城是世界上最伟大的建筑之一。 4 This is one of the most interesting books that Ive ever read.这是我读 过的最有趣的书之一。 注意：形容词的最高级前面必须加定冠词 the，但当形容词最高级 前面有物主代词修饰时， 则不加 the。 副词前面的 the 可以省略。 例如 ： （正）This is my best friend. （误）This is my the (the my) best friend.
8、（正）Today is the happiest day of my life. （误）Today is happiest day of my life. 练习： She is the tallest in his class. = She is _ ( tall)than any other student in his class. 课堂练习 1. Which lesson is _ (difficult) in Book 2? 2. Alice writes _(carefully ) than I. 3. This story is _( interesting) than that
9、one. 4. That was one of _( exciting) moments in 2008. 5. This kind of food must be _ ( delicious )than that one. 6. Beihai park is one of _ (beautiful ) parks in Beijing. 7. Whos _(careful), Tom,Jim or Kate? 8. That is _(easy) of all. 9. He is _(clever )boy in the class. 10. John is _( short) than T
10、om. 5 单选 1The Yellow River is one of _ in China. A. the longest rivers B. the longer river C. the longest river D. the long river 2. Does he speak Chinese _ his brother? A. as better as B. as good as C. as well as D. best than 3. Which shirt do you like _, the white one or the blue one? A. better B.
11、 good C. best D. much 4. This picture book is not _ that one. A. so interesting as B. so interesting than C. as interesting than D. interesting as 5. This article is _ than that one. A. much easier B. more easier C. much more easier D. more easy 6. The Changjiang River is _ river in China. A. long B
12、. longest C. the longest D. longer 一、写出以下各形容词的比较级和最高级： 1. nice _ 2. fat _3. slow _ 4. dry _5. happy _ 6. wet _ 7. much _ 8. ill _9. little _ 6 10. bad _11. thin _ 12. far _ 13. early _ 14. careful_ 15. exciting _ 16. busy _ 二、根据句意，用所括号内所级形容词的比较等级形式填空： 1. Bob is _ ( young ) than Fred but _ (tall) tha
13、n Fred. 2. Yingtian is not as _ (tall) as Yongxian. 3. Almost all the students faces are the same but Li Deming looks _(fat) than before . 4.Which is _ (heavy), a hen or a chicken? 5.- How _ (tall) is Sally? - She s 1.55 metres _ (tall). What about Xiaoling? - She s only 1.40 metres _(tall). She is much _(short) than Sally. She is also the _ (short) girl in the class. 6. He is _ (bad) at learning maths. He is much _ (bad) at Chinese and he is the _ (bad) at English. 7. Annie says Sally is the _ (kind) pers
