比较级的用法课件

1、 形容词（adjctive），副词(adverb)的比较级(comparatives)和最高级(supertives)形容词是描述,修饰名词或代词,说明事物或人的性质或特征的词。 eg. He is a good boy.副词在句子中修饰动词、形容词、其他副词或整个句子，用来表示时间、场所、状态及程度。eg. He studies hard .一. 定义:形容词和副词可以分为三个等级：1.原级，即原形； 2.比较级，表示“较/比”或“更一些”的意思：3.最高级，表示“最”的意思.二. 形容词和副词的级He is tall. 他高。He is taller than I. 他比我高。He is

2、the tallest in my class. 他是我们班最高的。 情况构成方法原级 比较级 最高级1一般情况加-er, -esttall taller tallest great greater greatest2 以不发音e结尾的单音节词加-r， -stlarge larger largest nice nicer nicest3 在重读闭音节中， （即：辅音元音辅音）先双写末尾的辅音字母 再加-er, -estbig bigger biggest hot hotter hottest4 以“辅音字母y”结尾的双音节词， 把y改为i再加-er, -esteasy easier easie

3、st heavy heavier heaviest 5 其他双音节词（副词）和多音节词，比较级在前面加more，最高级在前面加mostbeautiful more beautiful most beautifuldifferent more different most different easily more easily most easilyhelpful more helpful most helpful一、规则变化：原级比较级 最高级good ,wellbetterbestbad, ill, badlyworseworstmany ,muchmoremostlittlelessle

4、astfarFarther距离, further程度farthest, further(提高进一步)oldolder时间, elder 顺序oldest, eldest二、不规则变化：小贴士1.elder和eldest可用来表示兄弟和子女的长幼顺序： my elder sister 我的姐姐 my eldest brother 我的大哥 2.further表示“较远”外，还可表示 “进一步的”；而farther仅表示距离： The farther plants are too cold. 更远的行星太冷。 Do you need any further help? 你还需要更进一步的帮助吗？形

5、容词和副词的比较级和最高级的基本用法 表示两者（人或事物） 的比较，常用于“比较级 + than”的结构中 eg：Tom is taller than Kate. 汤姆比凯特高 Cats are more lovely than other animals. 猫比其他动物都可爱。 eg：This is the most beautiful flower of all the flowers. She is the shortest in her class. 。 This is the most interesting story that I have ever heard. 一、比较级：二

6、、最高级：在三者或三者以上的人或事物之间进行比较，表示“最”.最高级的常用表达方式： of / in +比较范围The +形容词（副词）的最高级 + 定语从句（二）不规则变化：不规则变化的形容词或副词几乎没有规律。原级比较级goodbad/illfarmany/muchlittleoldwellbadlybetterworsefarther, furthermorelessolder, elderbetterworse比较形式使用句型A=BA+as+原级+as B (A+not +as/so +原级+as B)ABA+more+adj/adv+than B（A超过B）ABA+less+adj/

7、adv+than B（A不如B）二、比较级的基本用法：Eg. 1. Dick is as tall as his brother.2. I can run as fast as you.3. This dictionary is better than that one.4. I can run faster than you.5. This book is less interesting than that one. 三、比较级特殊用法：（一）、倍数的表达法“倍数+形容词（或副词）的比较级+than+从句”“倍数+as+形容词或副词的原级+as+从句”“倍数+the size/height

8、/length/width，etc.+of”翻译：这辆小车的速度比那辆卡车快两倍。The car runs twice faster than that truck.The car runs 3 times as fast as that truck.The car runs 3 times the speed of that truck.三、比较级特殊用法：（二）、越来越“more and more +adj./adv.”或“比较级+and+比较级”翻译：英语变得越来越重要了。天气变得越来越冷了。English is becoming more and more important.It i

9、s getting colder and colder.三、比较级特殊用法：（三）、“越，就越”the +比较级，the+比较级翻译：你越努力，你就能取得越大的进步。年龄越大，记忆力就会越差。The harder you work, the greater progress you will make.The older we grow, the poorer our memory will become. Exercises:1.Need I wash your car after repairing it？ Yes,that would be much _. A.good B.well C

10、. better D. best2.She is very good at painting.She can paint_her teacher. A.as better as B.as well as C .as good as D.so well as3.I think English is as _as chinese. A. important B. more important C. most important D.the most important 4.My sister is really good at high jump. She jumps _ than the oth

11、er students in her school. A. the highest B. very high C. much higher D. too high 5.She always does her homework _ than her brother.A. more careful B. carefulC. more carefully D. carefully6. The air in Beijing is getting much_now than a few years ago. A. clean B. cleaner C. cleanest D. the cleanest7. Nowadays science fiction isnt as _ as cartoons among teenagers. A. popular B. more popular C. less popular D. the most popular8. We are glad to see that Shanghai is developing _ these years than ever before. A. quickly B. less quickly C. more quickly D. the most quickly13.Which do you like _, tea