如果对你有帮助，请下载使用！ 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：small→smaller→smallest short→shorter→shortest tall→taller→tallest great→greater→greatest （2）双音节词 如：clever→cleverer→cleverestnarrow→narrower→narrowest 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：large→larger→largest nice→nicer→nicest able→abler→ablest 3．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：big→bigger→biggest hot→hotter→hottest fat→fatter→fattest 4．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：easy→easier→easiest heavy→heavier→heaviest busy→busier→busiest happy→happier→happiest 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：beautiful→more beautiful→most beautiful different→more different→most different easily→more easily→most 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. 1 如果对你有帮助，请下载使用！ 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。 如：good→better→best well→better→best bad→worse→worst ill→worse→worst old→older/elder→oldest/eldest many/much→more→most little→less→least far →further/farther→ furthest/farthest 练 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、worker 2. （ ） A、weight 3. （ ） A、than 4.（ ） A、near 5. （ ） A、more B、workbook B、height B、traffic B、year B、work C、worm C、eight C、late C、bear C、world D、doctor D、eighty D、animal D、hear D、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 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。 I’m _____ (tall) than David. Who’s _____ (young), you or your brother? Which is _____ (long), Chang JiangRiver or the Yellow River? David’s 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______(higher\taller)than David’s. 四、课文内容填空 2 本文来源：https://www.wddqw.com/doc/93ad6c91a68da0116c175f0e7cd184254b351b9f.html