形容词的比较等级.doc

形容词的比较等级 撰稿：游晓霞 校对：韩杰 责编：王红艳教学目标：掌握形容词比较级的用法教学重点: 形容词比较等级的变化规则教学难点：形容词比较等级的特殊变化形容词比较等级讲解英语中的形容词常有三种形式来表达事物的等级差别，分别是原级、比较级和最高级。大部分形容词的比较级和最高级是通过变化词尾来实现的，属于规则性变化；但也有少数形容词比较等级的变化是没有规则的。形容词比较级和最高级的变化规则1. 规则变化词的特征变 化例 词原 级比较级最高级一般单音节词直接加-er, -estgreatloudgreaterloudergreatestloudest以e结尾的词加-r, -stlargewiselargerwiserlargestwisest以单个辅音字母（非r）结尾的单音节词双写末尾的辅音字母，再加-er, -esthotbighotterbiggerhottestbiggest以辅音字母+y结尾的双音节词变y为i，再加-er,-estangrylikelyangrierlikelierangriestlikeliest少数以-er, -ow结尾的双音节词直接加-er; -estbitteryellowbittereryellowerbitterestyellowest多数双音节词多音节词和源于分词的形容词在原级前加more, mostactivecheerfulcharmingmore activemore cheerfulmore charmingmost activemost cheerfulmost charming 2常见的不规则变化原 级比较级最高级good (well)betterbestbad(ill)worseworstmany(much)moremostlittlelessleastfarfartherfurtherfarthestfurthestoldolderelderoldesteldest二、形容词各等级的用法：1原级（同级）比较：asas ; not as(so)as(1) He will be as tall as you.(2) She isnt as(so) careful as before.2. 比较级：表示两者之间比较。句中可用much, a little, even等词作状语加以修饰。(1) He speaks English better than I speak Japanese.(2) He is even braver than I am.3. 最高级：用来表示三者以及三者以上进行比较。形容词最高级前必须加the, 副词最高级前常省略the，后面多用of, in引导的短语表示范围。(1) It is the most exciting story I have ever heard.(2) He is the most intelligent student in the class.三、重点与难点：1高于或者低于另一方的比较：比较级+than(1) You look much younger than I do.(2) She doesnt work harder than you do.2. 表示两者程度不同的其他结构。可用more than, not more than, less than, not less than等短语。(1) We havent got more than one hour left right now.(2) It is less cold today than it was yesterday.3. 形容词比较级前可用much, even, still, any, far, four times, a little等修饰。(1) Lucy is much wiser than Lily. (2) The room is a little bigger than that one. 3、比较级+and+比较级：意为“越来越”(1) Our country is becoming more and more beautiful.4、The+比较级，the+比较级： 意为“越 就越”(1) The more careful you are, the fewer mistakes you will make.5、比较级+than any other+单数名词：意为“比其它的任何一个都更”注意：这种情况其实是用比较级的形式表达最高级的意思。(1) China is larger than any other country in Asia.专项练习：1写出下列形容词的比较级和最高级。short _far _early _cautious _ big _late _few _thin _red _noisy _easy _young _2用所给词的适当形式填空。(1) Tim is _ (old) boy in his class.(2) Sam has _(many) books of all the students.(3) Lam speaks English _ (well) in his class.(4) She lives _(far) than any other student in your class.(5) She has the _(beautiful) house in this area.(6) Who runs _(slow) of all?(7) Jim is one of _(naughty) boys in our class.(8) Which is _(interesting), science, Chinese or English?3. 选择填空(1) I think English is _than Japanese.A. much important B. important C. much more importantD. more much important(2) This road is_ than that one.A. longest B. long C. longer D. as long(3) My grandfather is no _ young.A. shorter B. longer C. little D. few(4) These boys are _ this year than they were last year.A. more tall B. more taller C. very taller D. much taller(5) It was very cold yesterday, but it is_ today.A. even colder B. more colder C. much more coldD. much cold(6) Mrs. Green has got_ instead of getting any better.A. more bad B. a little worse C. much badly D. a lot of worse专项填空答案1. shorter, shortest; further, furthest/ farther, farthest; earlier, earliest; more cautious, most cautious; bigger, biggest; later, latest; fewer, fewest; thinner, thinnest; redder, reddest; noisier, noisiest; easier,