初中英语人教版八年级上册Unit3-形容词的比较级(共44张)课件

1、Hello！Welcome to our English class!Hello！形容词的比较级形容词的比较级ABbiggersmallerABbiggersmallerheavierthinnerheavierthinnershortertallershortertaller形容词原级形容词比较级形容词最高级形容词原级形容词比较级形容词最高级形容词的比较级构成规则变化不规则变化形容词的比较级构成规则变化不规则变化 1) 一般情况加 er fast faster high higher clever cleverer 直规则变化单音节词和少数双音节词 1) 一般情况加 er 直规则变化单音节词

2、和少数双音2) 以字母 e 结尾去掉e加 er fine finer late later nice nicer 去2) 以字母 e 结尾去掉e加 er 去3) 重读闭音节、末尾只有一个辅音 字母时双写加 er fat fatter big bigger thin thinner 双3) 重读闭音节、末尾只有一个辅音双4) 以辅音字母加 y 结尾变 y 为 i 加 er early earlier easy easier lucky luckier 变4) 以辅音字母加 y 结尾变 y 变三音节，多音节比较级用moredeliciousinterestingbeautiful more del

3、icious more interesting more beautiful多三音节，多音节比较级用more more delicious二、形容词比较级的不规则变化原级goodwellbadillmanymuchlittlefarold 比较级说明巧记：特殊形式比较级共有三对二合一坏病两多并两好little意思不是小一分为二有两个一是老来二是远better worseless more fartherfurtherolder elder 二、形容词比较级的不规则变化原级 比较级说明better Exercises：good - _ bad/ill - _little - _ many/muc

4、h -_far -_ -_old - _ -_better worse less more farther further older elder clean-_ nice -_ easy-_ fat -_beautiful-_cleaner easier fatter more beautifulnicer Exercises：good - _ bet用于两者（人或物）之间，表示“一个比另一更”结构：A +谓语+比较级 than B。“Which who is+ 比较级，or?”一、形容词比较级的常用句型用于两者（人或物）之间，表示“一个比另一更”一、形容Tom JerryJerry is

5、shorter than Tom.Tom JerryJerry is shorter th big smallABBall A is _ _ Ball B.Ball B is _ _ Ball A. bigger thansmaller than big smallABBall A is _ _U.S.AAustraliaUSA is bigger than Australia.U.S.AAustraliaUSA is bigger th初中英语人教版八年级上册Unit3-形容词的比较级(共44张PPT). than 后面接代词时，一般要用主格 ，但在口语中也可以换成宾格。 eg: He is

6、 better at math than I (me). 他比我更擅长数学。初中英语人教版八年级上册Unit3-形容词的比较级(共44张PPT) 形容词比较级前可加数词，表示“大（小）多少”“长（短）多少” eg:He is five years younger than me. 他比我小五岁。 形容词比较级前可加数词，表示“大（小）多少”“长（短表示倍数时用:“times（倍，倍数）+比较级+than” eg:My room is three times bigger than yours. 我的房间比你的大三倍。 表示倍数时用:“times（倍，倍数）+比较级+thanvegetables

7、pancakeWhich is more delicious , vegetables or pancake?表示两者之间的选择， “Which who is+ 比较级，or?” vegetablespancakeWhich is more（2）“比较级+and+比较级”表示 “越来越” eg: The life is better and better.（2）“比较级+and+比较级”表示She is happier and happier.She is happier and happier.（3）“The +比较级，the +比较级”表示“越，就越” eg：The busier he i

8、s ,the happier he feels. 他越忙就越高兴。（3）“The +比较级，the +比较级”表示“越，(4)、用比较级形式表示最高级的意思:比较级+than any other+单数(4)、用比较级形式表示最高级的意思:eg: Yao ming is taller than any other boy in the group.eg: Yao ming is taller than a二、形容词原级的常用句型as+形容词原形+asXiao xin is as tall as Kelan.小新和柯楠一样高。二、形容词原级的常用句型as+形容词原形+asXiao x 否定 not

9、 as+形容词原形+as “和 不一样” not so+形容词原形+as 不及不如 否定 Xiao xin is not as thin as Kenan .Kenan is not as fat as Xiao xin .Xiao xin is not as thin as KWhat do you study today?What do you study today?形容词的比较级构成规则变化不规则变化形容词的比较级构成规则变化不规则变化等级用法句型例句比较级“Which/who is+ 比较级，or?”Which is longer, this one or that? Our sch

10、ool is larger than theirs.The days are getting longer and longer. 1.表示两者之间的比较比较级+ than2.表 “越来越”，表示本身程度的改变比较级+and+比较级等级用法句型例句“Which/who is+ 比较级，or等级用法句型例句比较级The smaller the house is, the less it will cost us the heat.He is taller than any other boy in his class.3.表“越越The+比较级，the+比较级4.用比较级形式表示最高级的意思比较

11、级+than any other+单数The smaller the house is, the等级 用法 句型 例句 原级 1. 表示双方在程度、性质、特征等方面相等时2.表示双方不相等时 as+原级形容词/副词+as not so/as+原级形容词+as Tom is three times as old as MikeThere are as many students in our school as yours. Jim is not so/as tall asTom. 等级 用法 句型 例句 1. 表示双方在程度、性质、特征等方Exercise TimeExercise TimeF

12、ollow ups(随堂练习)1、The Changjiang River is _ than any other river in China. A. shorter B. longer C. shortest D. longest2、Bob never does his homework _ Mary. He makes lots of mistakes.(错误) A. so careful（仔细） B. as carefully as BBFollow ups(随堂练习)1、The ChangjiaFollow ups(随堂练习)3、_ she is, _ she feels. A. T

13、he more busy, the more happy B. The busy, the happy C. Busier, happier D.The busier, the happier4、The weather is getting c_ a_ c _ .(越来越冷)D DolderndolderFollow ups(随堂练习)3、_ she is,6. In our city its in July ,but it is even _in August . A. hotter; hottest B. hot; hot C. hotter; hot D. hot; hotterD 5.

14、 The bread is _ than these cakes A. very delicious B. much delicious C. more delicious D. as deliciousC6. In our city its in7. An elephant is than a tiger. A. Heavy B. very heavy C. the heaviest D. heavier8. Which subject is _ , physics(物理) or chemistry（化学） ? A. interesting B. most interesting C. more