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1、1形容词副词比较级最高级变化形式归纳 大多数形容词和副词有比较级和最高级的变化，即原级、比较级和最高级，用来表示事物的等级差别。原级即形容词的原形，比较级和最高级有规则变化和不规则变化两种。 规则变化单音节以及少数双音节的词后面直接加-er , -est原级 比较级 最高级tall taller tallestshort shorter shortestlong longer longestsmart smarter smartestsmall smaller smallestnew newer newestyoung younger youngeststrong stronger stron
2、gestfast faster fastesthigh higher highestcheap cheaper cheapestcool cooler coolestslow slower slowestgreat greater greatestclever cleverer cleverestclean cleaner cleanestfew fewer fewestloud louder loudestquiet quieter quietest特别提醒：以-y,-er, -ow, le 结尾的双音节形容词末尾加 er 和 est。如：healthy, funny, busy, hung
3、ry, easy, happy, early, pretty, lazy, heavy, dirty, clever, low(低的 )等。 以不发音的 e 结尾只加 -r，-st原级 比较级 最高级nice nicer nicestfine finer finestlarge larger largestcute cuter cuterlate later latestclose closer closestwhite whiter whitestblue bluer bluest“以辅音字母+y”结尾的词改 y 为 i，再加-er, -est原级 比较级 最高级easy easier ea
4、siestpretty prettier prettiesthappy happier happiestfunny funnier funniestbusy busier busiestheavy heavier heaviestdirty dirtier dirtiestlovely lovelier loveliestdry drier driestlucky luckier luckest以一个元音加一个辅音字母结尾的单音节词（即重读闭音节词） ，双写结尾的辅音字母，再加-er，-est原级 比较级 最高级fat fatter fattestthin thinner thinnestho
5、t hotter hottestbig bigger biggestred redder reddestwet wetter wettestsad sadder saddest特别提醒：new, few, slow, clean 等词含有字母组合，且发的是长元音，不用双写。大部分双音节词和多音节的词(即音标中含有三个或三个以上元音音素的词)，要在前面加 more，most原级 比较级 最高级beautiful more beautiful most beautifulimportant more importantmost importantexpensive more expensive m
6、ost expensiveoutgoing more outgoing most outgoingpopular more popular most popularserious more serious most serious2creative more creative most creativecomfortable more comfortablemost comfortablehard-working more hard-workingmost hard-workingdelicious more delicious most delicious特别提醒：以形容前缀 un 构成的三
7、音节形容词不适合上述情况，如 unhappy-unhappier-unhappiest, untidy-untidier-untidiest 以形容词+ly 构成的副词要在前面加 more， most原级 比较级 最高级slowly more slowly most slowlyquickly more quickly most quicklycarefully more carefully most carefullyloudly more loudly most loudlyquietly more quietly most quietly特别提醒：early -earlier-earli
8、est由 ING 分词和 ED 分词演变过来的形容词(包括不规则动词如 knowknown)只能加more 或 most来表示它们的比较级和最高级。 原级 比较级 最高级 interesting more interesting most interesting excited more excited most exciting tired more tired most tired boring more boring most boring 不规则变化原级 比较级 最高级good/well better bestbad/badly/ill worse worstmany/much mor
9、e mostlittle less leastfar farther/further farthest/furthestold older/elder oldest/eldest特别提醒：further 不仅可以指“距离更远”，还可指“程度更深”。记住以下三个词组：further study(进修) further education(继续教育) further information (进一步的信息) elder 仅用于同辈之间的排行，如: elder sister(姐姐)elder brother (哥哥)less 作为“更少”仅用来修饰不可数名词，修饰可数名词表示“更少”要用 fewer
10、。少数单音节词前面加 more, most 构成比较级和最高级，这类形容词一般为表语形容词和由过去分词变成的形容词。fun - more fun, most funtired - more tired , most tired 特殊形式：friendly-friendlier-friendliest -more friendly-most friendlyshy-shyer-shyest-shier-shiest练习：1. Bob is _ (young) than Fred but _ (tall) than Fred. 2. Ying Tian is not as _ (tall) as
11、Yong Xian. 3. Almost all the students faces are the same but Li Deming looks _ (fat) than before the holidays, 4.Which is _ (heavy),a hen or a chicken? 5.- How _ (tall) is Sally? - She s 1.55 metres _ (tall). What about Xiaoling? She s only 1.40 metres _(tall). She is much _(short) than Sally. She i
12、s also the _ (short) girl in the class. 6. He is _ (bad) at learning maths. He is much _ (bad) at Chinese and he is the _ (bad) at English. 7. Annie says Sally is the _ (kind) person in the world. 38. He is one of the_(friendly) people in the class, I think. 9. A dictionary is much _ (expensive) tha
13、n a story-book.10. An orange is a little _ (big) than an apple, but much _ (small) than a watermelon.二、形容词、副词的比较级的用法5名称结构 可放在前的修饰词例句1“甲+be+(倍数)+as+形容词原级+as+乙”表示“甲和乙程度相同”或“甲是乙的几倍”Tom is as old as Kate.汤姆和凯特年龄一样大。Tom is twice as old as Kate.汤姆的年龄是凯特的二倍。2“甲+实意动词+(倍数)+as+副词原级+as+乙”表示“甲和乙程度相同”或“甲是乙的几倍”To
14、m runs as fast as Mike.汤姆和迈克跑得一样快。Tom runs twice as fast as Mike.汤姆跑得速度是迈克的二倍。3“甲+be+not+as/so+形容词原级+as+乙”甲不如乙This room is not as/so big as that one.这个房间不如那个大。一、原级的用法4 甲+助动词+not+动词原形+as/so+副词原级+as+乙”甲不如乙almost, nearly, just, exactly, quite, rather, very, half , twice,three times , a third, so，tooHe
15、doesnt walk as slowly as you.他走路不像你那样慢。名称结构 可放在前的修饰词例句1 甲+be+(倍数)+形容词比较级+than+乙”表示“甲比乙”或“甲比乙几倍”Tom is taller than Kate.汤姆比凯特高。This room is three times bigger than that one.这个房间比那个大三倍。2“甲+实意动词+(倍数)+副词比较级+than+乙”表示“甲比乙”或“甲比乙几倍”I got up earlier than my mother this morning.我今天早晨起床比我妈妈还早。He runs three times faster than his brother.他跑的速度比他弟弟快三倍。3“甲+be+形容词比较级+than+any other+单数名词(+介词短语)”表示“甲比同一范围的任何一个人/物都”，含义是“甲最”。注意：The Yangtze Riveris longer than any river in Japan.长江比日本的任何一条河都长。The Yangtze River is longer than any other river in China.=The Yangtze River is longer than any of the other
