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1、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shortTshorterTshortest女口： smallTsmallerTsmallesttallTtallerTtallestgreatTgreaterTgreatest2）双音节词如： cleverTclevererTcleverestnarrowTnarrowerTnarrowest2如： largeTlargerTlargestniceTnicerTnicestableTablerTablest以不发音e结尾的单音节词，比较在原级后加-r，最
2、高级在原级后加-st；3高级加-est；如： bigTbiggerTbiggesthotThotterThottestfatTfatterTfattest4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： easyTeasierTeasiestheavyTheavierTheaviestbusyTbusierTbusiesthappyThappierThappiest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5.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： beautifulTmore be
3、autifulTmost beautifuldifferentTmore differentTmost different easilyTmore easilyTmost 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，
4、必须熟记。女口：goodTbetterTbestweTbetterTbestbadTworseTworstillTworseTworstoldTolder/elderToldest/eldestmany/muchTmoreTmostlittleTlessTleastfar Tfurther/fartherT furthest/farthest练习:五 Vzt、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、doctor()2.A、weightB、heightC、eightD、eighty()3.A、 thanB、trafficC、la
5、teD、animal()4.()A、 nearB、 yearC、 bearD、 hear5.A、moreB、workC、worldD、worm()二、选择填空。()you as as your classmate, Xiao MingA. tallB. tallerC. younger()Saturday morning, they went for aA. In, walk B. On, walkC. At, walking()cat is than that one.A. thinB. thinnerC thiner()4. Whose ruler is longer, A. yours
6、or hisB. your or hisC. yours or her()5. -What do your parents do after supper-They take the dog for a walk.A. cuteB. redC. well()your grandfather 80 years old-Yes, he .A. Is, doesB. Are, isC. Is, is三、用括号里所给单词的正确形式填空。Im(tall) than David.Whos (young), you or your brotherWhich is (long), Chang Jiang Ri
7、ver or the Yellow RiverDavids bag is (heavy) than (I).Gao Shan runs(fast)than his brother.Is your hair as (longer, long)as hersYang Ling flies a kite(highertaller)than Davids.四、课文内容填空Last Sunday morning, Su Hai (go) for a walk in the park. She met Ben and his cousinJack. They had a (chat). Jack was
8、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) thanSu Hai. Su Hai had a (twins) sister Su Yang. Su Yang was twenty (minute) (young)than Su Hai.
9、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 minutes younger than Lucy. But Lucy isnt as tall as Lily. She is shorter than Lily. They are both students in
10、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。( ) parents work in the same hospital.() 2. Mr. White and Mrs. White came to China 3 years before.() 3. Lily is shorter than Lucy.( ) dinner, Lucy and Lily watch TV.() 5. They like Chinese food.
