1、形容詞的比較級和最高級一形容詞的比較級和最高級的用法在英語中，在表示兩者作比較時，形容詞要用特別的形式，稱為“比較級”，三者及三者以上作比較時用“最高級”，原來的形容詞稱為“原級” 。e.g. You look taller than me .你比我高。You are heavier than me.你比我重。I am the strongest in my class.我是我們班最強壯的。二 . 形容詞比較級和最高級句型結(jié)構(gòu)1. 比較級句型 ：主語 A+ be 動詞 + 形容詞比較級 + than + B A 比 Be.g. He is older than me.他比我年長。【拓展】比較級

2、的其他表達方式 "the+ 形容詞比較級 +of the two+" 表示 ". 是兩者中較 的 " 。e.g. He is the heavier of the two boys.Look at the two boys. My brother is the taller of the two. " 比較級 +and+比較級 " 表示 " 越來越 " 。e.g. He is getting taller and taller.他越來越高。 "the+ 比較級， the+ 比較級 " 表示 &q

3、uot; 越 越 " 。e.g. The more careful you are， the fewer mistakes you'll make你越細(xì)心，就會越少犯錯誤。he more we get together, the happier we will be.我們聚得越多，我們就越開心The harder you work , the better you'll be.你越努力工作，你就會變得越好。輔助練習(xí)：1. Jim is _ than all the others. (tall)2. Things are getting _ and _. (bad)3.

4、 The higher you climb, the _ it will be. (cold)2. 最高級句型： 主語 + be 動詞 + the +形容詞最高級 + 介詞短語（介詞短語： in my class ,in the room ,in the hall ）e.g. He is the tallest in our class.【拓展】最高級的其他形式 " 主語 +be+ one of the+形容詞最高級 +復(fù)數(shù)名詞 +in/of短語 " 表示 " 是 中1最 之一 "e.g. Beijing is one of the largest ci

5、ties in China.序數(shù)詞 +最高級e.g. Hainan Island is the second largest island in China.輔助練習(xí)：1.The changjiang river is _ (long) river in China.2. The Yellow River (Huang He) is _（第二長） river in China3.A. 形容詞的比較級和最高級變化規(guī)則構(gòu)成原級比較級最高級talltallertallest單longlongerlongest音一般詞尾加 -er, -estoldolderoldest節(jié)smallsmallersma

6、llest和以字母 e 結(jié)尾的形容詞或副nicenicernicest少詞 , 直接加 -r,-stfinefinerfinest數(shù)largelargerlargest雙以重讀閉音節(jié)結(jié)尾的形容詞bigbiggerbiggest音或副詞 , 如末尾只有一個輔音hothotterhottest節(jié)字母 , 雙寫該字母 , 再加fatfatterfattest單-er,-estthinthinnerthinnest詞以“輔音字母 +y”結(jié)尾的形heavyheavierheaviest容詞或副詞，把 y 變?yōu)?i ，再 busybusierbusiest加 -er,-estearlyearlierear

7、liesteasyeasiereasiestB. 部分雙音節(jié)與多音節(jié)的詞比較級在原級之前加more, 最高級在原級之前加 mostbeautiful-more beautiful-most beautifulinteresting- more interesting most interestingdifficult- more difficult most difficultC. 不規(guī)則變化的形容詞 :little / few -less leastgood better - best2bad/ill - worse worstfar- farther/furtherfarthest/fur

8、thestmany/much more moste.g. 比較一下下列句子，領(lǐng)悟原級、比較級、最高級的用法。Tom is tall.他很高。Tom is as tall as John.湯姆和吉姆一樣高。Bob is taller than John.鮑勃比約翰高。John is the tallest of the three.約翰是三個當(dāng)中最高的一個。John is the tallest in his class.約翰在他們班最高?！菊n外拓展】1.在比較等級中常用much, a lot, far, even等常修飾比較級，表程度。e.g. 姚明比我高多了。Yao Ming is very

9、 taller than I. （誤）Yao Ming is much taller than I. （正）2. 在比較等級的句型中，比較的雙方必須是同類事物，否則會引起歧義。即人與人，物與物的比較。e.g.他的尺子比我的長。His ruler is longer than me.（誤）His ruler is longer than mine. （正）3. 形容詞最高級前一般有定冠詞，但如果前邊也有物主代詞，名詞所有格等詞來修飾時，定冠詞 the 常被省略。e.g. 加里是我最好的朋友。Garyis mythe bestfriend.（誤）Gary is mybestfriend.（正）4.

10、形容詞比較級前一般不加定冠詞，但句中有“of the two”結(jié)構(gòu)表示“兩者中較 的一個”時，定冠詞 the 要加上。e.g. 蘇珊是這兩個女孩子當(dāng)中較胖的一個。Susan isfatterof the two girls.（誤）Susan isthe fatterof the two girls.（正）同步練習(xí)：一、選擇題。1. She is _ than _ .3A. busier / usB. busier / weC. more busy / usD. more busy / we2. Jane is _ than Betty.A. less tallerB. less tallest

11、C. 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 best5- Which is_ , the sun, the moon or the earth?- Of course, the moon is.A

12、. smallB. smallerC. smallestD.the smallest6.The air in Beijing is getting much _ now than a few years ago.A. cleanB. cleanerC. cleanestD. thecleanest7. Mobile phones are very popular now and they are _ than before.A. cheapB. cheaperC. cheapestD. thecheapes8I study English as_ as my brother.A. hardB.

13、 harderC. hardestD. the hardest9. Which is _ , a bicycle or a computer?A. expensiveB. more expensiveC. the most expensive D.expensiver10. The Yellow River is one of _rivers in China.A. longB. longerC. the longestD. longest二、寫出下列單詞的比較級和最高級。1. nice _ 2. fat _3. slow _ 4. dry _5. happy _ 6. wet _7. muc

14、h _ 8. ill _49. little _ 10. bad _三 .根據(jù)句意，用所括號內(nèi)所級形容詞的正確形式填空。1. Mr. Smith is _ man in this office. (rich)2. Winter is _ season of the years. (cold)4. It is much _ today than yesterday. (hot)5. She is a little _ than her classmates. (careful)6. Bob is _ ( young ) than Fred.but _ (tall) thanFred.7. Alm

15、ost all the students' faces are the same ,but Li Deming looks _ (fat) than before after the summer holidays.8.Which is _ (heavy), a duck or a chicken?9. An orange ia a little _ (big) than an apple, but much _ (small) than awatermelon.10.- How _ (tall) is Sally?-She' s 1.55 metres _ (tall). W

16、hat about Xiaoling?- She' s only 1.40 metres _ (tal) l) She is much _ (short) than Sally.2) She is also the _ (short) girl in the class.四、課堂總結(jié)：和學(xué)生一起，對本次課的主要內(nèi)容作總結(jié)概括，并用紅筆留痕。五課外作業(yè)布置：（） 1.Ken is_than Ann.A. tallB. tellerC. taller（） 2.Who isthe_?A. oldestB. olderC. old（） 3.How_isKen?A. manyB. muchC.

17、heavy（） 4.I m147_tall.A. kilogramsB. centimetersC. meters（） 5. The book is _ of the two.5A. thinnerB. the thinnerC. more thinner（） 6. Which do you like _, coffee, tea or milk?A. the worstB. worseC. the worse(） 7.Jim is 40 kg. Tom is 38 kg. Tom is _ than Jim.A. tallerB. thinnerC. heavier(） 8.Tom is 1

18、20 cm. Jack is_. Than him.A. tallB. tallerC. heavier()9. My sister is good at sports, She can jump _ than me.A. highestB. too highC. much higher一寫出以下各形容詞的比較級和最高級：1. thin _ 2. far _3. early _ 4. careful_5. exciting _ 6. busy _二 根據(jù)句意，用所括號內(nèi)所級形容詞的正確形式填空：1. _ people came to the meeting than last time. (m

19、any)2. Which book is _, this one or that one? (easy)3. My room is _ than yours. (small)4. Hainan is _ from Beijing than Hunan. (far)5. Skating is _ than swimming. (exciting)6.He is _ (bad) at learning maths.He is much _ (bad) atChinese and he is the _ (bad) at English.7. Annie says Sally is the _ (k

20、ind) 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.- Annie plays the piano very _ (well).- Sue plays it _ (well) than Annie. And Sally plays it the _ (well).11. The Changjiang River is the _ (long) river in China.12. S