初中英语比较级课件
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初中英语形容词比较级和最高级讲解与练习绝大多数形容词有三种形式,原级,比较级和最高级, 以表示形容词说明的性质在程度上的不同。
形容词的原级: 形容词的原级形式就是词典中出现的形容词的原形。
例如: poor tall great glad bad形容词的比较级和最高级: 形容词的比较级和最高级形式是在形容词的原级形式的基础上变化的。
分为规则变化和不规则变化。
规则变化如下:1) 单音节形容词的比较级和最高级形式是在词尾加-er 和-est 构成。
great (原级) (比较级) (最高级)2) 以-e 结尾的单音节形容词的比较级和最高级是在词尾加-r 和-st 构成。
wide (原级) (比较级) (最高级)3)少数以-er, -ow, - le结尾的双音节形容词的比较级和最高级是在词尾加-er 和-est 构成。
或者加more,和most来构成。
gentle(原级) (比较级) (最高级)clever(原级) (比较级) (最高级)narrow(原级) (比较级) (最高级)4) 以-y 结尾,但-y 前是辅音字母的形容词的比较级和最高级是改-y 为i, 加上-er 和-est 构成.happy (原形) (比较级) (最高级)5) 以一个辅音字母结尾其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母然后再加-er和-est。
big (原级) (比较级) (最高级)6) 双音节和多音节形容词的比较级和最高级需用more 和most 加在形容词前面来构成。
beautiful (原级) (比较级) (最高级)difficult (原级) (比较级) (最高级)常用的不规则变化的形容词的比较级和最高级:原级------比较级------最高级good/well------better------bestmany/much------more------mostlittle------less-----leastbad/ill-----worse------worstfar------farther, further------farthest, furthestold------older,elder-----oldest,eldest形容词前如加less 和least 则表示"较不"和"最不"important 重要less important 较不重要least important 最不重要形容词比较级的用法:形容词的比较级用于两个人或事物的比较,其结构形式如下:主语+谓语(系动词)+ 形容词比较级+than+ 对比成分。
2. He is ______ (bad) at learning maths. He is much _______ (bad) at Chinese and he is the_________ (bad) at English.3. Annie says Sally is the ________ (kind) person in the world.4 A dictionary is much _________ (expensive) than a story-book.5. An orange ia a little ______ (big) than an apple, but much ________ (small) than a watermelon.6. Playing computer games is______ _____ _____ of all the activities.(interesting).7. The Nile(尼羅河) is ______ ________river in the world. (long)8. Good health is _______ _______ ________thing life. (important)9. Taking a taxi is ______ _______ way to get to the airport. (easy)10. She is_______ than all the other students. (young)11. Where is the ________bus-stop? (near)12. Tom drives much ________ ________than John. (careful)13. The white flower is ________(beautiful). The yellow flower is ______ _______ (beautiful)than the white flower. The red flower is the _____ ______ of the three.三、选择题1. She is ________ than ________ .A. busier / usB. busier / weC. more busy / usD. more busy / we2. China is ________ country in the world.A. the third largestB. the largest thirdC. the third largeD. a third largest3. -Which is ____ season in Beijing?-I think it's autumn.A.goodB.betterC.bestD.the best4.- Which is__________ , the sun, the moon or the earth?-- Of course, the moon is.A.smallB.smallerC.smallestD.the smallest5.The air in Beijing is getting much _____ now than a few years ago.A. cleanB. cleanerC. cleanestD. the cleanest6. Mobile phones are very popular now and they are _____ than before.A. cheapB. cheaperC. cheapestD. the cheapest7 Which is _____ , a bicycle or a computer?A. expensiveB.more expensiveC.the most expensive8. The Yellow River is one of ______rivers in China A long B longer C the longest9.She is the second _______student in our class. A. tall B. taller C. Tallest形容词比较级最高级练习题一、写出下列单词的反义词1. hot____2.new________3. clean________4. high________5. heavy______6.cold_______7. bad______二、写出下列形容词的比较级和最高级1. old ______ ________2. busy _________ __________3. thin ________ ________4. many _________ __________5. slow ________ _______6. delicious _________ _________三、用适当形式填空:1. Bob is _________ ( young ) than Fred but __________ (tall) thanFred.2. Yingtian is not as ___________ (tall)asYongxian.3. Almost all the students' faces are the same but Li Deming looks _______ (fat) than before .4. Which is _________ (heavy), a hen or a chicken?5.-- How _________ (tall) is Sally?-- She' s 1.55 metres ________ (tall). What aboutXiaoling?-- She' s only 1.40 metres ______ (tall). She is much _______(short) than Sally. She is also the _______ (short)girlin theclass.6. He is ______ (bad) at learning maths. He is much _______ (bad) at Chinese and he isthe _________ (bad) at English.7. Annie says Sally is the ________ (kind) person in the world.8.He is one of the_________(friendly) people in the class, I think.9. A dictionary is much _________ (expensive) than a story-book.10. An orange ia a little ______ (big) than an apple, but much ________ (small) than a watermelon.11.Miss Chen is __________ _________than Mr. Wang. (popular)12. Mr. Lin ________ ________ _________ Mr. Brown. (sad)13. The basketball _______ ________ ________ the baseball. (big)14. Question A _______ ________ _________ ________ Question B. (important)15. A rose ________ ________ __________ ________ a weed(野草). (beautiful)16. Toronto is _____ ______ city in Canada. (large)17. Playing computer games is______ _____ _____ of all the activities.(interesting).18. The Nile(尼羅河) is ______ ________river in the world. (long)19. Good health is _______ _______ ________thing life. (important)20. Taking a taxi is ______ _______ way to get to the airport. (easy)21. Test 1 is _____ _______ _________of all the tests. (difficult)22. He is ________than any other boy in the class.(clever)23. She is_______ than all the other students. (young)24. The window is ________ ________ of the two. (narrow)25. Where is the ________bus-stop? (near)26. He is one of ________ ________ _______Politicians. (famous)27. Tom drives much ________ ________than John. (careful)28. The white flower is ________(beautiful). The yellow flower is ______ _______ (beautiful)than the white flower. The red flower is the _____ ______ of the three.四、选择题1. She is ________ than ________ .A. busier / usB. busier / weC. more busy / usD. more busy / we2. Jane is ________ than Betty.A. less tallerB. less tallestC. less tallD. not as tall3. China is ________ country in the world.A. the third largestB. the largest thirdC. the third largeD. a third largest4. -Which is ____ season in Beijing? -I think it's autumn.A.goodB.betterC.bestD.the best 5.- Which is__________ , the sun, the moon or the earth? -- Of course, the moon is.A.smallB.smallerC.smallestD.the smallest6.The air in Beijing is getting much _____ now than a few years ago.A. cleanB. cleanerC. cleanestD. the cleanest7. Mobile phones are very popular now and they are _____ than before.A. cheapB. cheaperC. cheapestD. the cheapest8.I study English as_______as my brother.A.hardB. harderC. hardest9. Which is _____ , a bicycle or a computer?A. expensiveB.more expensiveC.the most expensive10. The Yellow River is one of ______rivers in China.A longB longerC the longest11.She is the second _______student in our class.A. tallB. tallerC. tallest。
初中英语语法知识:比较级与最高级变化规则大多数形容词和副词有比较级和最高级的变化,即原级、比较级和最高级,用来表示事物的等级差别。
原级即形容词的原形,比较级和最高级有规则变化和不规则变化两种。
(1)单音节词加词尾-er,-est来构成比较级和最高级。
tall(高的) taller tallestgreat(巨大的) greater greatest(2)以不发音的e结尾的单音节词只加-r,-stnice(好的) nicer nicestlarge(大的) larger largestable(有能力的) abler ablest(3)以一个辅音字母结尾的闭音节单音节词,双写结尾的辅音字母,再加-er,-estbig(大的) bigger biggesthot热的) hotter hottestred红色的 redder reddest(4)"以辅音字母+y"结尾的双音节词,改y为i,再加-er,-esteasy(容易的) easier easiestbusy(忙的) busier busiest(5)以ly结尾的副词,除early-earlier-earliest,其他都是加more most.Slowly-more slowly-most slowlyBravely-more bravely-most bravelyquickly-more quickly-most quickly(6)少数以-er,-ow结尾的双音节词未尾加-er,-estclever(聪明的) cleverer cleverestnarrow(窄的) narrower narrowest(7)其他双音节词和多音节词在前面加more,most来构成比较级和最高级。
如:important(重要的) more important most importanteasily(容易地) more easily most easily(8)一些词的比较级和最高级,可以加-er或 -est,也可以加more或most,如:clever, polite等。