1、.young-yonger-yong estold older -old esttall-tall er - tallestsmall-smaller - small estearly-earl ier-earl iest thirsty-thirst ier-thirst iest1. 一般情况下加-er 或est :2. 以字母e结尾的形容词，加-r或-st4. 以“辅音字母y” 结尾的双音节词，先改“y” 为“i” ，再加-er或-est.big bigger -bi ggestfat fatter-fattest形容词比较级最高级规则形容词比较级最高级规则nice nicer-nice
2、 stsafe safer -safest3. 重读闭音节词只有一个辅音字母时，应先双写辅音字母，再 加-er或-est.一.5.5.部分双音节词或多音节词前面加部分双音节词或多音节词前面加 more ,most.如:interesting more interesting most interestingfamous more famous most famous原级比较级最高级good/wellbetterbestbad/illworseworstmany/much moremostlittlelessleastfarFurther fartherFurthest farthest两好、两
3、坏、两多、一少、一老 、一远.Read and compare :younglongfullshortsmalloldfineeasyhungryearlyheavybigredyoung eryoung estlonger longestfullerfullestshort ershort estsmall er small estolderoldestfinerfinesteasier easiesthungr ier hungr iestearlier earl iestheav ierheav iestbiggerbiggest red derred dest.healthymanyf
4、amousillexcitingcarefullywet hotlittlefewhealthier healthiestmore mostmore famous most famousworse worstmore exciting most excitingmore carefully most carefullywetter wettesthotter hottestless leastfewer fewest.1.原级比较原级比较as + adj./adv. 原级as 和 一样否定：not so/ as +adj./adv.原级as不及我和你一样大。I am _ you.他跑得不及我快
5、。He _ run _ I.as old asdoesntas/so fast as.as+adj.+ a/an +可数名词单数 +asas much +不可数名词+as，as many +可数名词复数as和 一样多的某物He is as good an example ashis brother.Bob read as _ books as Mary.There is as _ water in this bottle as in that bottle.manymuch当as as中间有名词时,采用以下格式.翻译练习1. 我和她一样勤奋.2. 她的书不如我的多.3. 汉语同英语一样难学.I
6、 am as hard as she is .She has not as many books as I have.Chinese is as difficulta language asEnglish.形容词、副词的比较级和最高级A+谓语+ adj./adv.的比较级than BA在某方面超过B我比汤姆要高。I am _ Tom (is).你看起来比以前年轻。You look _ before.比较级的结构taller thanyounger than.这间房子比那间房子大这间房子比那间房子大.这本书不如那本书有趣这本书不如那本书有趣.? This room is bigger than?
7、 that one.This book is less interesting than that one.Attention!形容词和副词的比较级的变化不能混淆！1.以-er结尾和特殊变化的形容词副词比较级前面不能加more2. as as 之间必须用形容词和副词原级He is more taller than I. (T or F)I can write more better than he. (T or F)I runs as faster as she. ( T or F)fast.1.比较级前可用much, far, a lot, a little, even等表示程度,不能使用v
8、ery，quite.She sings _ better than the others.她比别人要唱得好得多。far / muchNow I read _ faster than before.我现在读得比以前要快一点。a little注意：.比较级的特殊用法1.the + 比较级 + of the two2.两者中较 的一个He is _ (old) of the two boys. And she is _ (tall) of the three.the olderthe tallest2.less +( 多音节词)原级+ than = not as/so+原级as 不及Jim does
9、nt do it as carefully as Mary.Jim does _ than Mary.Mary does _ than Jim.less carefullymore carefully.2) 比较级+and +比较级, 表示越来越当形容词或副词为多音节时，必须用more and more + 原级Summer is coming, its getting hotter and hotter .The city has become more and more beautiful.练习: 天变得越来越黑.情况一天比一天好起来.夏天来了，天气变得越来越热。这座城市变得越来越漂亮。.
10、天变得越来越黑.情况一天比一天好起来.Its getting darker and darker.Things are getting better and bettereveryday.3) The +比较级+主语+ 谓语, the +比较级+主语+谓语The busier he is, the happier he feels.The more carelessyou are, the moremistakes you will make.他越忙, 他感到越高兴.你越粗心，犯的错误就越多。.翻译练习1. 她越长, 越漂亮.2. 你越仔细, 出错越少.3. 你越锻炼, 就越健康.The el
11、der she is, the more beautifulshe grows .The more careful you are , the less mistakesyou will make.The more exercise you do,the healthieryou will become .比较A、B两事物, 询问哪一个较时：Which / Who is + 比较级？Which T-shirt is nicer, this one or that one? Who is more active , Mary or Kate?.形容词、副词的最高级A+ the + adj.最高级
12、 in(范围)of(同类)A+adv.最高级 in(范围)of(同类)Mary is the tallest girl _ her class/ _ the three.Bill reads most clearly_ all the students.inofof.one of the + 形容词最高级+名词复数表示“最之一”他是班里最高的学生之一.He is _ in the class.one of the tallest students这本书最有趣。The book is _ of all.在班上她最早到校。She comes to school _ in the class.the
13、 most interestingearliest.the +序数词序数词+ 形容词最高级形容词最高级+名词名词第第 最最它是世界上第二高的建筑物它是世界上第二高的建筑物.It is _ building in the world.the second tallest.原级、比较级、最高级互换原级、比较级、最高级互换倍数asas = 倍数比较级than这本书比那本厚2倍。This book is _ as that one.The book is _ than that one.three times as thicktwice thicker .5) 倍数表达法1倍数times+ 比较级+t
14、han 比多少倍The river is three times longerthanthat one.这本字典比那本恰好便宜5倍。新楼比旧楼高4倍。This dictionary is just 5 times cheaper than that one.The new building is 4 times higher than the old one.5) 倍数表达法倍数表达法2倍数+as+形容词/副词+as是多少倍The ship is twice as wide as that one.这条船是那条船的两倍宽。这条船是那条船的两倍宽。.亚洲的大小是欧洲的4倍。这棵树是那棵树的三倍高
15、。? Asia is four times as large asEurope.? This tree is 3 times as tall as that tree.5) 倍数表达法3倍数+the+名词+of 是多少倍This river is 3 times the length ofthat one.=This river is 3 times as long asthat one.=This river is twice longer thanthat one.名词常用size, height, depth, length, age.?地球是月亮大小的地球是月亮大小的49倍。倍。?舞厅
16、是我们教室宽度的2倍? The earth is 49 times the size ofthe ? moon.? The ball is twice the width ofour ? classroom.HomeworkA、B组完成句子1.Jack isnt so _ (clever) as John.1.Jack isnt so _ (clever) as John.2.Tom works as _ (hard) as Mary.2.Tom works as _ (hard) as Mary.3.China is _ (large) country in Asia.3.China is
17、_ (large) country in Asia.4.Its _ (hot) today than yesterday.4.Its _ (hot) today than yesterday.5.This park looks much _ (good) than that one.5.This park looks much _ (good) than that one.6. I cant run as fast as you. You run _ (fast) than I.6. I cant run as fast as you. You run _ (fast) than I.7. O
18、f all the girls she draws _ (well).7. Of all the girls she draws _ (well).8. English is one of _ (interesting) subjects.8. English is one of _ (interesting) subjects.9. This student is _ (careful) than any other 9. This student is _ (careful) than any other student.student.10. Which is _ (easy), Eng
19、lish, Chinese or maths?C C组：写出一下单词的比较级和最高级long large hot easy good long large hot easy good big important bad few muchbig important bad few much.1.long 2.large3.hot4.easy5.good 6.happy7.big8.slowlylonger longestlarger largesthotter hottesteasier easiestbetter besthappier happiestbigger biggestmore s
20、lowly most slowly写出下列形容词和副词的比较级和最高级.9. important10. bad11. well12. useful13. few14. hard15. muchmore important most importantworse worstbetter bestmore useful most usefulfewer fewestharder hardestmore most.用括号内形容词和副词的适当形式填空1.Jack isnt so _ (clever) as John.2.Tom works as _ (hard) as Mary.3.China is
21、_ (large) country in Asia.4.Its _ (hot) today than yesterday.5.This park looks much _ (good) than that one.cleaverhardthe largesthotterbetter.6. I cant run as fast as you. You run _ (fast) than I.7. Of all the girls she draws _ (well).8. English is one of _ (interesting) subjects.9. This student is _ (careful) than any other student.10. Which is _ (easy), English, Chinese or maths?faster(the) bestthe most interestingmore carefulthe easiest
