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1、形容词和副词比较级的变化规则形容词和副词比较级的变化规则1一般单音节词和少数以-er，-ow 结尾的双音节词，比较级在后面加-er，最高级在后面加-est；（1）单音节词如：smallsmallersmallest shortshortershortest talltallertallest greatgreatergreatest（2）双音节词如：clevercleverercleverest narrownarrowernarrowest 2以不发音 e 结尾的单音节词，比较在原级后加-r，最高级在原级后加-st；如：largelargerlargest nicenicernicest a
2、bleablerablest3在重读闭音节（即：辅音元音辅音）中，先双写末尾的辅音字母，比较级加-er，最高级加-est；如：bigbiggerbiggest hothotterhottest fatfatterfattest4以“辅音字母y”结尾的双音节词， 把 y 改为 i，比较级加-er，最高级加-est；如：easyeasiereasiest heavyheavierheaviestbusybusierbusiest happyhappierhappiest5其他双音节词和多音节词，比较级在前面加 more，最高级在前面加 most；如：beautifulmore beautifulm
3、ost beautifuldifferentmore differentmost differenteasilymore easilymost easily注意：（1）形容词最高级前通常必须用定冠词 the，副词最高级前可不用。例句： The Sahara is the biggest desert in the world. （2） 形容词 most 前面没有 the，不表示最高级的含义，只表示“非常“。 It is a most important problem. =It is a very important problem. 6有少数形容词、副词的比较级和最高级是不规则的，必须熟记。
4、如：goodbetterbest wellbetterbestbadworseworst illworseworstoldolder/elderoldest/eldest many/muchmoremostlittlelessleast far further/farther furthest/farthest练练 习习一、语音选出每组单词中划线部分读音与其余三个不同的单词。1. （ ）A、workerB、workbookC、wormD、doctor2. （ ）A、weightB、heightC、eightD、eighty3. （ ）A、thanB、trafficC、lateD、animal4
5、.（ ）A、nearB、yearC、bearD、hear5. （ ）A、moreB、workC、worldD、worm二、选择填空。 ( ) 1.Are you as _ as your classmate, Xiao Ming?A. tall B. taller C. younger ( ) 2._ Saturday morning, they went for a_A. In, walk B. On, walk C. At, walking ( ) 3.This cat is _ than that one.A. thin B. thinner C thiner ( ) 4. Whose
6、ruler is longer, _?A. yours or his B. your or his C. yours or her ( ) 5. -What do your parents do after supper? -They take the _ dog for a walk.A. cute B. red C. well ( ) 6.-_ your grandfather 80 years old?-Yes, he _.A. Is, does B. Are, is C. Is, is三、用括号里所给单词的正确形式填空。 Im _ (tall) than David. Whos _ (
7、young), you or your brother? Which is _ (long), Chang Jiang River or the Yellow River? Davids bag is _ (heavy) than _ (I). Gao Shan runs_(fast)than his brother. Is your hair as _ (longer, long)as hers? Yang Ling flies a kite_(highertaller)than Davids. 四、课文内容填空 Last Sunday morning, Su Hai _ (go) for
8、a walk in the park. She met Ben and his cousin Jack. They had a _ (chat). Jack was not the only _ (children) .He had a brother Jimmy. Thats a _ (cute) dog. Jack was 6 years old. Ben was _ (old) than him. Ben was also _ (tall) and _ (heavy) than him. Ben was as _ (old) as Su Hai. But he was _(strong)
9、 than Su Hai. Su Hai had a _ (twins) sister Su Yang. Su Yang was twenty _(minute) _ (young) than Su Hai. 五、完成阅读理解，教师讲评。 Mr. White and Mrs. White work in the same hospital. They have two lovely girls. Their names are Lucy and Lily. Lucy and Lily are twin sisters. Lucy is 10 years old. Lily is ten min
10、utes younger than Lucy. But Lucy isnt as tall as Lily. She is shorter than Lily. They are both students in Sunshine Primary School. Lucy is good at Math. But Lucy is not. She is better at music. They like watching TV. They watch TV every Saturday and Sunday. The Whites came to China 2 years ago. They like China very much now. They like Chinese food. 根据短文内容判断正误。 ( ) 1.The parents work in the same hospital. ( ) 2. Mr. White and Mrs. White came to China 3 years before. ( ) 3. Lily is shorter than Lucy. ( ) 4.After dinner, Lucy and Lily watch TV. ( ) 5. They like Chinese food.
