Unit7形容词和副词的比较级.ppt

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1、形容词和副词的比较级和最高级。大多数形容词和副词有三个等级：原级、比较级、最高级。原级指形容词和副词的原形；比较级用来表示“较”或“更一些”；最高级则表示“最”,Grammar：,一、形容词和副词的原级：表示两者（A与B）在某一方面相同时用句型：A+谓语+as+形容词或副词的原形+as+B.eg:Tom 和 Sam 一样高。Tom is as tall as Sam.Tom 和 Sam 跑得一样快。Tom runs as fast as Sam.英语和数学一样重要。English is as important as math.Lucy 和Lily 学习一样好。Lucy studies as

2、well as Lily.,2.两者（A与B）在某一方面A不如B时用句型：A+谓语+not as/so+形容词或副词的原形+as+B.eg:Tom 不如 Sam 高。Tom is not as/so tall as Sam.Tom 不如 Sam 跑得快。Tom doesnt run as/so fast as Sam.英语不如数学重要。English is not as/so important as math.Lucy 不如Lily 学习好。Lucy doesnt study as/so well as Lily.,二、形容词和副词的比较级：形容词和副词的比较级表示两个事物在进行比较时，一者

3、比另一者较/更。常用句型：A+谓语+形容词或副词的比较级+than+B.eg:Tom 比 Sam 高。Tom is taller than Sam.Tom 比 Sam 跑得快。Tom runs faster than Sam.英语比数学重要。English is more important than math.Lucy 比Lily 学习好。Lucy studies better than Lily.,1、形容词和副词的比较级的规则变化：,一般直接在词尾加er或 est,tall,taller-tallest,light,lighter-lightest,以字母e结尾的直接加r或st,nice

4、,nicernicest,fine,finerfinest,以辅音字母加y结尾的形容词，要变y为i再加er或est,heavy,heavierheaviest,busy,busier-busiest,以重读闭音节结尾且末尾只有一个辅音字母的形容词，要双写末尾的辅音字母再加er或 est,thin,thinnerthinnest,hot,hotterhottest,多音节词或部分双音节词的比较级和 最高级在其前面加more或most。,beautiful,more beautifulmost beautiful,important,more importantmost important,Int

5、eresting more interesting most interesting,quickly more quickly most quickly,tired more tired most tired,2、不规则形容词的比较级最高级,better,best,more,most,less,least,worse,worst,farther/further,farthest/furthest,older/elder,oldest/eldest,写出下列形容词的比较级和最高级,（1）ill/bad/badly（2）busy（3）big（4）rude（5）hot（6）easy（7）little

6、（8）fast（9）hard,worse worst,busier busiest,bigger biggest,ruder rudest,hotter hottest,easier easiest,less least,faster fastest,harder hardest,（10）many/much（11）happy（12）far（13）careful（14）good/well（15）difficult（16）small（17）quiet（18）old,more most,happier happiest,farther farthest,more careful most caref

7、ul,better best,more difficult most difficult,smaller smallest,quieter quietest,older oldest,3、形容词比较级的用法:（1）两者（A与B）进行比较，“A比B较/更”。A+谓语+形容词或副词的比较级+than+B.eg:Tom 比 Sam 高。Tom is taller than Sam.Tom 比 Sam 跑得快。Tom runs faster than Sam.英语比数学重要。English is more important than math.Lucy 比Lily 学习好。Lucy studies

8、better than Lily.,（2）两者（A与B）进行比较，“A比B大/长/高”A+谓语+数量词+形容词或副词的比较级+than+B eg:Tom比Sam大两岁。Tom is two years older than Sam.（3)两者（A与B）进行比较，“哪一个更/较”Which/Who 谓语+比较级,A or B?eg:数学和英语哪一科较简单？Which is easier,math or English?Tom和Sam谁跑得更快？Who runs faster,Tom or Sam?,（4）两者（A与B）进行比较，“其中A是两者中较”A+谓语+the+比较级+of the two.

9、eg：Tom is the taller of the two boys.汤姆是这两个男孩中最高的.（5）比较级+and+比较级，表示“越来越”eg：Now it is hotter and hotter.现在越来越热。shorter and shorter 越来越短 longer and longer 越来越长 more and more beautiful 越来越漂亮 more and more interesting越来越有趣,（6）The+比较级，the+比较级“越，就越”eg：越多越好。The more,the better.你吃的越多，你就越胖。The more you eat,t

10、he fatter you will become.（7）用形容词的比较级来表达最高级的概念：A+谓语+比较级+than any(other)+可数名词单数+范围。“A是中最的”或“A比(其他)任何都”注意：当A在范围内比较时，必须加other;当A不在范围内比较时，去掉other.eg：上海比中国其他的任何一个城市都大 Shanghai is bigger than any other city in China.上海比日本的任何一个城市都大 Shanghai is bigger than any city in Japan.,（8）修饰比较级的词much(的多)、far(的多)、a lot

11、(的多)、even(更)、still（仍然）、any(任何)a bit(一点儿)a little(一点儿)eg:This city is much more beautiful than that one.这座城市比那座城市漂亮的多。Today is even hotter than yesterday.She drives still more carefully than her husband.她开车仍然比她丈夫认真。,（9）修饰形容词原级的词：very、rather、pretty、so、quite、too He is too tired to walk on.My brother ru

12、ns so fast that I cant follow him.(10)比较级与not as/so-as的互相转换 Sally didnt sing so clearly as Nelly.Nelly sang more clearly than Sally.Larry works harder than Huang Lei.Huang Lei doesnt work so hard as Larry.(11)“less+adj(原级)+than”相当于“not as/so+adj（原级）+as”意为“不如”He is less hard-working than I.=He isnt a

13、s hard-korking as I.I dont think history is as interesing as English.=I think history is _interesting _ English,less,than,（12）没有比较级的形容词 表国籍的形容词无比较等级。如：Chinese（中国的）American（美国的）English（英国的）Japanese（日 本的）Australian（澳大利亚的）Indian（印度的）Canadian（加拿大的）Hungarian（匈牙利的）Egyptian（埃及的）表方位的形容词无比较等级。如：east（东方的）west

14、（西方的）left（左边的）middle（中间的）southeast（东南部的）表绝对概念或已达极限的形容词无比较等级。如：blind（瞎的）dead（死的）alone（单独的）hole（整个的）excellent（极 好的）说明物质材料的形容词无比较级。如：solid（固体的）plastic（塑料的）wooden（木制的）liquid(液体的)表顺序、数字或时间概念的形容词无比较等级。如。next（下一个）several（若干的）daily（每日的）做表语的表示状态的形容词无比较级。如。alive（活着的）awake（醒的）asleep（睡着的）此类形容词还有一个特点，就是一般不能用程度副词

15、（very,so）修饰。如 不能说：very dead,so awake。,2)比较级：1)A+be+adj比较级+than+B 2)A+V+adv比较级+than+B注意：1)比较级修饰词：much far even still rather a lot a little a bit 2)加倍数：A be+倍数+比较级+than+B 3)同范围的比较，相当于最高级：比较级+than+any other+sl(比其他任何一个都。)4）越来越：比较级 and 比较级 5）越.越.：the 比较级，the 比较级 6）两个当中比较.的：the 比较级 of the two 7）Who/Which

16、is 比较级，A or B?最高级：A+be/v+the+最高级+of(in)+.注意：1）名词所有格，形物代修饰省略 the 2)one of the 最高级+pl 3)Who/Which is the 形容词最高级，A,B or C?,Exercise:This box is_ that one.A.heavy than B.so heavy thanC.heavier as D.as heavy as2 When we speak to people,we should be-.A.as polite as possible B.as polite as possiblyC.as pol

17、itely as possible D.as politely as possibly3 This book is_ that one,but_ than that one.A.as difficult as;expensiveB.as more difficult as;more expensiveC.as difficult as;more expensiveD.more difficult as;as expensive,D,A,C,2)比较级：1)A+be+adj比较级+than+B 2)A+V+adv比较级+than+B注意：1)比较级修饰词：much far even still

18、rather a lot a little a bit 2)加倍数：A be+倍数+比较级+than+B 3)同范围的比较，相当于最高级：比较级+than+any other+sl(比其他任何一个都。)4）越来越：比较级 and 比较级 5）越.越.：the 比较级，the 比较级 6）两个当中比较.的：the 比较级 of the two 7）Who/Which is 比较级，A or B?最高级：A+be/v+the+最高级+of(in)+.注意：1）名词所有格，形物代修饰省略 the 2)one of the 最高级+pl 3)Who/Which is the 形容词最高级，A,B or

19、 C?,4.I think science is _ than Japanese.A.much important B.much more important C.important D.more much important 5.This pencil is_ than that one.A longest B.long C.longer D.as long 6.My mother is no _ young.A.shorter B.longer C.little D.few 7.Our classroom is_ larger than theirs.A.more B.quite C.ve

20、ry D.much,B,C,B,D,2)比较级：1)A+be+adj比较级+than+B 2)A+V+adv比较级+than+B注意：1)比较级修饰词：much far even still rather a lot a little a bit 2)加倍数：A be+倍数+比较级+than+B 3)同范围的比较，相当于最高级：比较级+than+any other+sl(比其他任何一个都。)4）越来越：比较级 and 比较级 5）越.越.：the 比较级，the 比较级 6）两个当中比较.的：the 比较级 of the two 7）Who/Which is 比较级，A or B?最高级：A+

21、be/v+the+最高级+of(in)+.注意：1）名词所有格，形物代修饰省略 the 2)one of the 最高级+pl 3)Who/Which is the 形容词最高级，A,B or C?,8.When spring comes,it gets_.A.warm and warm B.colder and colder C.warmer and warmer D.shorter and shorter 9.Day by day _students in our class came to like English.A.more and more B.much and much C.ma

22、ny and many D.less and least 10._ I look at the picture,_ I like it.A.The best;the more B.The more;the less C.The more;less D.More;the more 11._ he read the book,_ he got in it.A.The more;the more interesting B.The less;the more interesting C.The more;the more interested D.More;more interested,C,A,B

23、,C,Written practiceMy sister is _ than I.(young)Shenzhen is _ than Guangzhou(clean)Tim is _ than Denis Dragon.(clever)I think she looks _than in the photo.(beautiful)The problem is _ than that one.(important)Can you walk _than a young man.(far)?This road is _ than the other one.(wide)In summer it is

24、 _ in Wuhan than in Beijing.(hot)He has _ homework to do than I do today.(much)My mothers car is _ than my fathers.(expensive),younger,cleaner,cleverer,more beautiful,more important,farther,wider,hotter,more,more expensive,句型转换：1.Tom is tall.Jim is short.(比较级合并)Tom is _ _ Jim.2.My hair is long.Marys

25、 hair is longer.(合并成一句)Marys hair _ _ _ mine.3.Pedro is thinner than Sam.(改为同义句)Sam is _ _ Pedro.4.My sister is better at study than me.She is clever.(改为同义句)My sister is _ clever(聪明的)than me at study.5.Peter is funny.Paul is funny,too.(合并成一句)Peter is _ funny _ Paul.,taller,than,is,longer,than,fatter/heavier,than,more,as,as,