比较级与最高级及倍数表达方式

1、比较级与最高级、倍数表达方式词的变化规则1）规则变化构成法原级比较级最高级一般单音节词未尾加-er,-esttall（ 高的 ）great（ 巨 大 的）tallergreatertallestgreatest以不发音的 e 结尾的 单音词和少数以 - le 结尾 的双音节词只加 -r,-stnice（ 好的 ）large（ 大的 ）able （有能力的）nicer larger ablernicest largest ablest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 ） hot （ 热的 ）biggerhotterbiggest

2、hottest 以辅音字母 +y 结尾 的双音节词，改 y为 i ，再 加 -er ，-esteasy（ 容易的 ）busy（ 忙的 ）easierbusiereasiestbusiest少数以 -er ，-ow 结尾 的双音节词未尾加 -er ， -estclever（ 聪 明 的）narrow（ 窄的 ）cleverernarrowercleverestnarrowest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。important（ 重 要 的）easily（ 容 易地）more importantmore easilymostimportantmost

3、 easily2) 不规则变化原级比较级最高级good（ 好的）well（ 健康的 ）betterbestbad （ 坏的 ） ill（ 有病的 ）worseworstold （ 老的 ）older/elderoldest/eldestmuch/many（ 多 的）moremostlittle（ 少的 ）lessleastfar （ 远的 ）farther/furtherfarthest/furthest3）more + 形容词 / 副词原级二、基本结构比较级形容词或副词 +thanYou are taller than I.He is the tallest in his class.可修饰

4、比较级的词1）a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等2）还可以用表示倍数的词或度量名词作修饰语。3）以上词（除 by far） 外，必须置于比较级形容词或副词的前面。典型例题 :1） Are you feeling ? Yes ， Im fine now.A. any well B. any better C. quite good D. quite better2）The experiment was easier than we had ex

5、pected.A.more B.much more C.much D.more much3）If there were no examinations, we should have _ at school.A. the happiest time B. a more happier time C. much happiest time D.a much happier timethe+ 最高级 +比较范围1）The Sahara is the biggest desert in the world.形容词最高级前通常必须用定冠词 the ，副词最高级前可不用。形容词 most 前面没有 th

6、e ，不表示最高级的含义，只表示 非常 。It is a most important problem.=It is a very important problem.注意： 使用最高级要注意将主语包括在比较范围内。（ 错 ）Tom is the tallest of his three brothers.（ 对 ）Tom is the tallest of the three brothers.2）下列词可修饰最高级， by far, far, much, mostly, almostThis hat is nearly / almost the biggest.a.very 可修饰最高级，

7、但位置与 much不同。This is the very best.This is much the best.b. 序数词通常只修饰最高级。Africa is the second largest continent.3) 句型转换：Mike is the most intelligent in his class.Mike is more intelligent than any other students in his class.4) 否定词语+比较级 ，否定词语+ so as 结构表示最高级含义Nothing is so easy as this.=Nothing is easie

8、r than this.=This is the easiest thing.倍数的表达方式1. “ ?times? 形容词 ?/? 副词的比较级 ?than? ”例如：This?hall?is?five?times?bigger?than?our?classroom.2. “ ?times?+as?+?形容词?/?副词的原级 ?as?”例如：This?table?is?three?times?as?long?as?that?one.?3. “ ?times?+?the?+? 名词（如：?size ，?height ，?weight ，?length ，?width,?age 等） ?of?

9、”例如：This?street?is?four?times?the?length?of?that?street.4. “ ?times?+?more?名词 ?than? ”例如：There?are?twice?more?students?in?our?class?than?in?theirs.?5. “ ?times?+?what? 从句”例如：The?price?of?the?meat?is?twice?what?it?was?last?year.?6. “ ?times?+?up?on? （或?over? ）He?is?three?times?up?on?your?age.7. “ ?+b

10、y?+? ?times? ”例如：His?speed?is?faster?than?mine?by?four?times.8. “ ?times?+?compared?with? 被比较对象”例如：The?number?of?the?students?in?our?school?has?increased?four?times?compared?wit h?1980.9. “ ?times?+?that?of?+? 被比较对象”例如：In?this?workshop?the?output?of?July?was?three?times?that?of?January.和 more 有关的词组1

11、) the more the more 越就越The harder you work ， the greater progress youll make.2) more B than A 与其说 A 不如说 B=less A than BHe is more lazy than slow at his work.= He is less slow than lazy at his work.3) no more than 与一样不， (对两者同时否定)no more than 仅仅not more than 不多于，至多not . more than Eg: He is no more a writer than a painter.He has no more than three children.He has not more than three children.She is not more clever than he is.no less than 不亚于no less than 多达not