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1、比较级最高级的用法注意： 在含有连词than 的比较级中， 前后的比较对象必须是同一范畴， 即同类事物之间的比较。在比较级前面使用 much，表示程度程度 “强得多 ”。如：A watermelon is much bigger than an apple.在英语中通常用下列方式表示的词:在形容词或副词前加 more(如 more natural,more clearly ) 或加后缀 very, quite 一般只能修饰原级，不能修饰比较级。-er(newer,sooner )。典型的是指形容词或副词所表示的质、量或关系的增加。英语句子中，将比较两个 2“比较级+ and + 比较级”或“m
2、ore and more +原级”表示 “越来越 ”主体的方法叫做 “比较句型 ”。其中，像 “A比 B 更 ”的表达方式称为比较级；而 “A 最 ”的表达方 如： It becomes warmer and warmer when spring comes. 春天来了，天气变得越来越暖和了。式则称为最高级。组成句子的方式是将形容词或副词变化成比较级或最高级的形态。 It is getting cooler and cooler. 天气越来越凉爽。一、形容词、副词的比较级和最高级的构成规则The wind became more and more heavily.风变得越来越大。1一般单音节词
3、和少数以 -er，-ow结尾的双音节词，比较级在后面加 -er，最高级在后面加 -est； Our school is becoming more and more beautiful.（1）单音节词我们的学校变得越来越美丽。如：small smaller smallest short shorter shortest3在含有 or 的选择疑问句中，如果有两者供选择，前面的形容词要用比较级形式。tall taller tallest great greater greatest如： Who is taller,Tim or Tom?谁更高， Tim还是 Tom?（2）双音节词4. “the比+
4、较级 , the+比较级”，表示 “越 越 ”。如：clever cleverer cleverest narrow narrower narrowestThe more money you make, the more you spend.钱你赚得越多，花得越多。2以不发音 e结尾的单音节词，比较在原级后加 -r，最高级在原级后加 -st； The sooner，the better. 越快越好。如：large larger largest nice nicer nicest able abler ablest 5. 表示倍数的比较级用法：3在重读闭音节（即：辅音元音辅音）中，先双写末尾的辅
5、音字母，比较级加 -er，最高级加 -est； . A is times the size /height/length/width of B.如：big bigger biggest hot hotter hottest fat fatter fattest 如： The new building is three times the height of the old one.这座新楼比那座旧楼高三倍。 (新楼是旧楼的四倍高 ) 4以“辅音字母 y”结尾的双音节词， 把 y 改为i，比较级加 -er，最高级加 -est；如：easyeasier easiest heavy heavier
6、heaviest . A is times as big /high/long/wide/large as B.busybusier busiest happy happier happiest如： Asia is four times as large as Europe.亚洲是欧洲的四倍大。 (亚洲比欧洲大三倍 )5其他双音节词和多音节词，比较级在前面加 more，最高级在前面加 most； . A is times larger /higher/longer/wider than B.如：beautiful more beautiful most beautiful如： Our scho
7、ol is twice bigger than yours. 我们学校比你们学校大两倍。different more different most different 6.形容词、副词的最高级形式主要用来表示三者或三者以上人或事物的比较，表示 “最 ”的意思。easily more easily most easily句子中有表示范围的词或短语。如： of the three, in our class 等等。注意：（1）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。 如：He is the tallest in our class. 他在我们班里是最高的。例句： The Saha
8、ra is the biggest desert in the world.7. 否定词语+比较级 ， 否定词语+ so as结构表示最高级含义。（2） 形容词most 前面没有 the，不表示最高级的含义，只表示 非常。 Nothing is so easy as this. =Nothing is easier than this. =This is the easiest thing.It is a most important problem. =It is a very important problem.8. 比较级与最高级的转换：6有少数形容词、副词的比较级和最高级是不规则的，必
9、须熟记。 Mike is the most intelligent in his class.如：goodbetter best well better bestMike is more intelligent than any other student in his classbadworseworst ill worseworst 9.修饰比较级和最高级的词old older/elder oldest/eldest 1）可修饰比较级的词many/muchmoremost little less least.a bit, a little, rather, much, far, by fa
10、r, many, a lot, lots, a great deal, any, still, even 等。far further/farther furthest/farthest .还可以用表示倍数的词或度量名词作修饰语。二、形容词、副词的比较级和最高级的用法. 以上词(除 by far)外，必须置于比较级形容词或副词的前面。1“A + be +形容词比较级+ than + B ”意思为“A比 B 更 ”。注意：使用最高级要注意将主语包括在比较范围内。如：This tree is taller than that one.这棵树比那棵树高。(错) Tom is the tallest o
11、f his three brothers. (对) Tom is the tallest of the three brothers.1 / 42)下列词可修饰最高级：by far, far, much, mostly, almost 。 This hat is nearly / almost the biggest.她唱得真动听！我可从未听过比这更好的嗓音了。注意： a. very 可修饰最高级，但位置与 much 不同。 How beautifully she sings! I have never heard a better voice.This is the very best. T
12、his is much the best. 4. 三者或三者以上相比，表示最高级时，用 “the+最高级”的结构表示，这种句式一般常有表示比较范b. 序数词通常只修饰最高级。围的介词短语。Africa is the second largest continent. Zhang Hua is the tallest of the three.3）.要避免重复使用比较级。 He works (the) hardest in his class.(错) He is more cleverer than his brother. That was the least exciting footbal
13、l game I ve ever watched.(对) He is more clever than his brother. (对) He is cleverer than his brother. This hotel is the most comfortable I ve ever stayed. 注意： 当最高级的前面无限定词the 或有不定冠词a/an时，仅表示 “很 ，非常 ”4）.要避免将主语含在比较对象中。(错) China is larger that any country in Asia. (对) China is larger than any other coun
14、try in Asia. Monday is my busiest day. 星期一是我很忙的一天。5）.要注意对应句型，遵循前后一致的原则。 Qingdao is a most (very) beautiful coastal city. 青岛是一个非常美丽的海滨城市。The population of Shanghai is larger than that of Beijing.It is easier to make a plan than to carry it out.四 比较级的一些其他用法6）.要注意冠词的使用，后有名词的时候，前面才有可能有名词。 1 倍数表示方法比较： Wh
15、ich is larger, Canada or Australia? Which is the larger country, Canada or Australia? a) 倍数+as+形容词/副词原级+ asShe is taller than her two sisters. She is the taller of the two sisters. b) 倍数+形容词/副词比较级+than三比较级和最高级的用法c) 倍数+ the + n. + of1. 两者相比（甲 =乙），用 “as原+级+as”表示 This rope is three times longer than that one.Tom is as tall as Mike. This rope is three times as long as that one.2. 两者相比（甲 乙），用 “not as(so)原+级+as”或“less than表示” This rope is three times the length of that one.I didn t do my ho
