比較級和最高級課件

1、英語專題：形容詞的比較級和最高級.英語專題：形容詞的比較級和最高級.專題：形容詞，副詞比較級、最高級 (一)1. 形容詞，副詞比較級和最高級的概念。形容詞和副詞可以靠改變形式來表示程度的不同。我們把這種變化形式叫做比較等級。要比較兩個或兩個以上的人或物時，就必須用形容詞的比較級和最高級。形容詞、副詞有三個級：原級(Positive Degree)，比較級(Comparative Degree)和最高級(Superlative Degree)。.專題：形容詞，副詞比較級、最高級 (一).寫出下列詞的反義詞tall-thin-long-funny-Sad- shortheavyshortserio

2、ushappy.寫出下列詞的反義詞tall-shortheavyshort形容詞的比較級和最高級的構(gòu)成方法：單音節(jié)和少數(shù)雙音節(jié)形容詞、副詞的規(guī)則變化情況：a. 在原級的詞尾加-er變?yōu)楸容^級，加-est變?yōu)樽罡呒墶?e.g. short(原級)-shorter(比較級)-shortest(最高級) long(原級)-longer(比較級)-longest(最高級)b. 如原級以e結(jié)尾，則比較級只加-r，最高級只加-st。 e.g. large-larger-largest nice-nicer-nicestc. 如原級以“輔音字母+y”結(jié)尾，要將y改為i，再加-er，-est。 e.g. bu

3、sy-busier-busiest easy-easier-easiest d. 原級以重讀閉音節(jié)結(jié)尾，而且末尾只有一個輔音字母(不含字母組合er等)，要雙寫這個輔音字母，再加-er，-est。 e.g. fat-fatter-fattest big-bigger-biggest.形容詞的比較級和最高級的構(gòu)成方法：.2. 其他雙音節(jié)詞和多音節(jié)詞都在前面加more, most構(gòu)成比較級及最高級： 原級 比較級 最高級 important more important most important difficult more difficult most difficultinteresting

4、 more interesting most interesting useful more useful most useful .2. 其他雙音節(jié)詞和多音節(jié)詞都在前面加more, most構(gòu).serious-beautiful-interesting-important-difficult-gooddelicious-More seriousmore beautifulmore interestingmore importantmore difficultbettermore delicious.serious-More seriousmore beau寫出下列詞的最高級形式tall-ba

5、d -friendly -little-old- tallestworstthe most friendlyleastoldest.寫出下列詞的最高級形式tall-tallestworstt3. 形容詞比較級的用法和相關(guān)句型。表示兩者“相等”用“as+形容詞原級+as+比較對象”。e.g. He is as tall as his mother English is as interesting as math.表示“不如”或“不相等”用“not +asso+形容詞原級+as+比較對象”。e.g. It is not soas cold today as yesterday Jack is n

6、ot so/as tall as Tom.表示倍數(shù)，如“一半兩倍/3倍4倍”等用“halftwicethreefourtimes +asas”結(jié)構(gòu)。e.g. I study twice as hard as you This room is three times as large as that one.用“形容詞比較級+than引導(dǎo)的從句”進(jìn)行兩者的比較。e.g. The earth is bigger than the moon This dress is more expensive than that one.3. 形容詞比較級的用法和相關(guān)句型。.強(qiáng)調(diào)比較級超出比較程度時，形容詞的比

7、較級前可用much，far，a lot，no，a little，even，any,等狀語來修飾。e.g. My brother is much older than I. This bike is far better than that one.由and連接同一個形容詞的兩個比較級，可以表示“越來越”。e.g. I think English is becoming more and more difficult.用“the+比較級+the+比較級”，表示“越就越”。e.g. The more you read，the more knowledge you will get The less

8、 junk food you eat, the healthier you feel.強(qiáng)調(diào)比較級超出比較程度時，形容詞的比較級前可用much，f比較級+ of the two 表示兩者中較的（比較級前加the）John is the clever of the two boys. Of the two boys, John is the clever. 最高級+of 或 in 表示中最的Eg: Jack is the tallest in their class.China is the largest one of all the Asian countries.(注意一定地域空間用in，一

9、類事物范圍內(nèi)用0f)a+最高級表示“非常”，the+最高級表示“最”。This is a most difficult question.This is the most difficult question.比較級+ of the two 表示兩者中較的（比較級比較要同類，在同一范圍內(nèi)，排除自身的方法用other，在不同的范圍內(nèi)，不用other.Shanghai is larger than any other city in China.=Shanghai is the largest city in China.Shanghai is larger than any city in In

10、ida.比較要同類，在同一范圍內(nèi)，排除自身的方法用other，在不同1. My brother is two years _(old)than me. 2. Tom is as _(fat) as Jim.3.- Is your sister _(young) than you? -Yes4. Who is _(thin),you or Helen? Helen is.5. Lucy is the_(good) student in our class.6. Marys hair is as _(long) as Lucys.7. Which is _ (big),the sun ,the m

11、oon or the earth?8. Who is _ (tall),Tom or Sam? 9.Fangfang is not as _ (tall) as the other girls.10.My friends are _(many) than _ (she). 練習(xí)：單選題fatyoungerthinnerbestlongthe biggest tallertallmoreolderhers.1. My brother is two years _三 單項選擇。1.Alan is_ than Linda. A. tall B. taller C. tallest 2. -She i

12、s _ than her mother. -Her mother is also beautiful. A. beautiful B. beautifuler C. more beautiful D. the most beautiful3. -Do you always get up as _ as you brother? -Not always. A. earliest B. earlier C. the earliest D.early4. He is _more beautiful than I. A. too B. enough C. much D. veryBCDC.三 單項選擇

13、。BCDC.5. This book is _ that one.A. as better as B. as good as C. as best as 6. The earth is_ the moon. -I also saw it on the newspaper.A. as 49 times big as B. 49 times as bigger asC. 49 times as big as D. as big as 49 times7. -It looks like that he is as _ as you. -Oh, no. He is _ than I.A. tall,

14、a little tall B. taller, a little tall C. tall, a little taller D. taller, a little taller8.-Thanks for taking care of the garden, it is becoming _. -You are welcome.A. more beautiful and moreB. more beautiful and more beautifulC. more and more beautifulBCCC.5. This book is _ that o9. The box is _ h

15、eavy .I cant move it. A. much B. more C. enough D. too10. Her brother is _ than she. A. seven year older B. seven year older C. seven years old D. seven years older11. The_you stand,the _ you can see. A. high; far B. higher; farther C. highest; farthest D. more higher; more farther12.You should stud

16、y English hard, because its getting_ in our country . A. more and more important B. more important and more important C. importanter and importanter D. important and importantDDBA.9. The box is _ heavy .I 13. _you learn ,_ you will learn. A. harder, better B. the harder, the goodC. the harder, the b

17、etter 15. Who is _ student in your class? A. good B. better C. best D. the bestCD.CD.改錯Lesson 9 is more easier than Lesson 10.My mother is younger than your.He is one of longest boys in his class.The boy doesnt draw much well.Betty is the youngest on the three girls.Mother is the busiest of my family.You can jump very higher on the moon than on the earth.yoursthe longestveryofinmuch.改錯Lesson 9 is more easier thanDo some ex