英语人教版八年级下册形容词和副词比较等级.doc

形容词副词比较等级 永年区第三实验学校 授课人：张双娥Teaching aims： 1.熟练掌握形容词和副词比较等级的构成； 2.学习形容词、副词比较等级的用法及其在中考常见的考点； 3.几种常见错误的分析。Teaching importances：形容词和副词比较等级的构成规则及用法Teaching difficulty： 形容词和副词比较等级的用法Teaching method： Task-teaching methodTeaching tools： 多媒体课件Teaching steps:Step 1 Warming up Welcome to Dolphin World. Im glad to see more and more people like dolphins. Now let me introduce our friends to you. We know dolphins are smaller than whales but they are probably the most intelligent creatures in the sea. Bigger dolphins can be as long as four meters in length. But common ones are usually less than two meters long. Dolphins are one of the most friendly creatures to people and often ships. Dolphins also have a better system of communication than other animals. They are very popular with children. The more you watch them, the better you will like them. Have a good time! Thank you!Step 2 The rules of comparative grade 规则变化 (1)单音节或部分双音节词一般在词尾加er, est 如： tall, long, young (2)以e字母结尾的词加r , st 如： nice , fine，wide (3)以重读闭音节结尾的词双写末尾辅音字母加er, est. 如： big ,fat, thin (4)以辅音字母+y结尾的，把y变i加er , est 如： easy, heavy, busy (5)多音节或部分双音节：在形容词副词前加 more, most 如：beautiful, careful, quickly, popular, interesting 不规则变化 good/well - better - best bad/ill /badly - worse - worst many/much - more - most little - less - least far - farther - farthest further - furthest old - older - oldest elder - eldest注意：1. elder与older 区别是，前者是在家庭中兄弟姐妹的长幼,后者范围更广。 2.farther与further区别是，前者强调距离远，后者是更进一步、程度深之义。Step 3 Boys VS Girls (Friendly match)Boys：few badly thin interesting healthy Girls: wet carefully little happy bigStep 4 Show match 01 形容词副词原级用法 (1)用于句型asas,表示两者相比较,程度相同.例如: The old man walks as fast as a young man.这位老人走路与年轻人一样快. Science is _ maths. 自然科学与数学一样重要. (2)用于句型“not as（so）as,表示两者相比较,前者不如后者. 例如: Im not as tall as Jack. 我没有杰克高. She doesnt run _ I. 她没有我跑得快. 02 形容词副词比较级用法 (1)两方比较，表示一方超过另一方时，用“比较级 + than”的结构表示 如： This picture is _ than that one. （beautiful） (2)表示一方不及另一方时，用“less + 原级 + than”的结构表示如： That picture is _ than this one. (3)表示一方随另一方的程度而变化时，用“the + 比较级，the + 比较级”的结构（意 为“越越”）. 如： The more books we read, the cleverer we will become. 我们读的书越多,就会变得越聪明. _exercise we take, _ we are. 我们越锻炼,身体就越健康. (4)不与其他事物相比，表示本身程度的改变时，用“比较级 + and + 比较级”的结构。意为“越来越”如： The weather is getting colder and colder. The park is getting _ . 这个公园变得越来越美了. (5)比较级+than any other+单数名词比其他任何都. 例如: Li Lei is taller than any other boy in his class. 李雷比他班上其他任何一个男孩都高. =Li Lei is taller than _ boys in his class. (6) 形容词比较级前还可以用much, a little, a lot, far, even, still,等表示程度的词来修饰. I feel a little better than yesterday. 我感觉比昨天好一点儿了. The job is far more difficult than before. 这工作比以前要难得多. He works _ than before. 他比以前工作更努力了。 注意：very, quite, too, so 等只能修饰形容词、副词的原级。 例：The weather is quite warm today.03 形容词副词最高级用法 最高级的用法 （1）三者或三者以上相比较,用the+最高级+名词+范围结构. : Hu Yun is the tallest girl in our class. 胡云是我们班最高的女生。 This story is the _ in our class. 这个故事是所有故事中最有趣的一个。 （2）表示最之一,用one of the+形容词最高级+复数名词. The Great 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. This is _ that Ive ever read. 这是我读过的最有趣的书之一. （3）the+序数词+ 最高级 如： Yellow River is _ river in China.黄河是中国的第二大河。Step 5 Limited time match. 1. There isnt _ in todays newspaper. A. nothing important B. something important C. important anything D. anything important 2. Whenever I am in trouble, Lucy is always one of _friends. A. helpful B .more helpful C. most helpful D. the most helpful 3. Bob never does his homework _ Helen. He makes a lot of mistakes. A. as careful as B. so carefully as C. less carefully as D. more careful than 4. Our monitor takes exercise every day, for he believes _he does, _ hell be. A. the less; the stronger B. the more; the thinner C. the more; the stronger D. more; stronger 5. Lets go shopping today. I heard everything in the shop is _. . A. much cheap B. very cheaper C. more cheap D. much cheaper 6. Country music isnt as popular as rock music. （同义句转换） Rock music is _ than country music . Country music is _ than rock music 7. Mount Qomolangma is higher than any other mountain in the world. Mount Qomolangma is _mountain in the world. （同义句转换） 8. At present, Chinese is _ (wide) used around the world.9. speak, she, cant , English, good （连词成句） _Step 6 Race to be the first to answer a question “抢答赛”规则 两队各选派一名队员用“剪子包袱锤”的形式决出胜负，获胜者选择答题序号，答对得2分，答错不扣分。 1 Marys hair is longer than my sister. 2 Shanghai is larger than any city in China. 3 This box is much more heavier than that one. 4 The pollution problem may be one of the greatest problem in the world. 5 I think math is quite more difficult than Chinese. 6 Mike is so tall as Jack. 7 Betty is youngest of the three girls. 8 There is fewer bread in the fridge. 9 Li Ming is enough strong to carry the box. 10 These days English is becoming more important and more important.Step 7 Test in class.(Settle the outcome) （一）原级、比较级、最高级的用法比较 1.DoesJohndraw(well)thanJack? No,Jackdrawsas(good)asJohn. 2.Whostudies(hard),Tom,MaryorLucy? TomstudiesthanMary,andLucystudiesofall. 3.Todayisvery,butyesterdayiseven.(cold) 4.Billrunsfasterthananyotherstudentinhisclass.（同义句） =Billrunsinhisclass. =NobodyrunsBillinhisclass. 5.Ofthetwoshirts,Alanbought(cheap)one. 6.OfallthemoviesIhaveseen,Ilikethisone.Itsnotfunnyatall. A.leastB.mostC.worstD.best （二）填空： 1.Englishisoneof(importa