英语中的比较级与最高级.ppt

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1、英语中的比较级与最高级,绝大多数形容词有三种形式,原级positive degree,比较级comparative degree和最高级superlative degree,以表示形容词说明的性质在程度上的不同。形容词的原级:形容词的原级形式就是词典中出现的形容词的原形。例如:poor tall great glad bad形容词的比较级和最高级:形容词的比较级和最高级形式是在形容词的原级形式的基础上变化的。分为规则变化和不规则变化。,规则变化如下:1)单音节形容词的比较级和最高级形式是在词尾加-er 和-est 构成。great greater greatestwarm warmer war

2、mestlong longer longeststrong stronger strongest2)以-e 结尾的单音节形容词的比较级和最高级是在词尾加-r 和-st 构成。wide wider widestclose closer closestbrave braver bravest,(3)以-y 结尾,但-y 前是辅音字母的形容词的比较级和最高级是把-y 去掉,加上-ier 和-iest 构成.happy happier happiestfunny funnier funniesthealthy healthier healthiesttidy tidier tidiest(4)以一个辅

3、音字母结尾其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母然后再加-er和-est。hot hotter hottestred redder reddestfat fatter fattestsad sadder saddestthin thinner thinnest,(5)部分双音节和多音节形容词的比较级和最高级需用more 和 most 加在形容词前面来构成。difficult,popular,helpful,cheerful,tired,不规则变化如下：,原级-比较级-最高级 good,well-better-best bad,ill-worse-worst littl

4、e-less-least few-fewer-fewest many,much-more-most far-farther/further-farthest/furthest old-older/elder-oldest/eldest late-later/latter-latest/last,clean helpful easy cheerful tidy importantclose bigwide cleverhealthy tiredhot good sad far,cleaner cleanesteasier easiesttidier tidiestcloser closestwi

5、der widest healthier healthiesthotter hottestsadder saddest,more most more most more most bigger biggest er est more most better bestfarther farthest,形容词比较级的用法:,1)同级比较肯定形式：as+adj./adv.原级+as“和一样”e.g.This apple is as big as that one.否定形式：not so/as+adj./adv.原级+as“和不一样”He doesnt write as carefully as hi

6、s sister.2)差别比较“比更一些”，常用连词than引导状语从句。A+系动词+形容词比较级+than+B.I think English is more popular than Japanese.A+实义动词+副词比较级+than+B.Mike studies harder than Helen.,常用来修饰比较级的词：much,even,still,so much,a little,a bit,a lot,far等。只能修饰原级不能修饰比较级的：very,quite,so,ratherThis park is much more beautiful than that one.To

7、ms father is a little fatter than Jims.,Our teacher is_ than we are.我们老师的个子比我们的高。2.It is _today than it was yesterday.今天的天气比昨天暖和。3.This picture is_than that one.这张照片比那张照片漂亮。4.The sun is_ than the moon.太阳比月亮大得多。5.His handwriting is _（well）.He writes _(good)in his class.6.Sandy is _(lazy)person in his

8、 class.7.Tom is a _(care)boy.He does everything _(careful).He does everything _ in his family.,taller,warmer,more beautiful,much more bigger,good,best,the laziest,careful,carefully,most carefully,形容词和副词最高级的用法:,形容词最高级用于两个以上的人和物进行比较,其结构形式为:A+连系动词+形容词最高级+of/in/among Autumn is the best season in Beijing

9、.A+实义动词+副词最高级+of/in/among Who runs fastest in our school?,比较级和最高级的特殊句型：比较级+and+比较级“越来越”When it is going to rain,it can get darker and darker.比较级+than any other+单数名词“比其他任何都”Changjiang River is longer than any other river in China.the+比较级,the+比较级“越,就越”The more you eat,the fatter you will be.the+比较级+of

10、 the two“两个中较的那个”He is the taller of the two.,Which/Who is+比较级，A or B?“A和B哪一个/谁更?”Which is more interesting,swimming or diving?Which/Who is+the+最高级，A,B or C?“哪一个/谁最?”Which is the fastest way to travel,by plane,by bus or by train?one of the+最高级+复数名词“最之一”I think Harry Potter is one of the most popular

11、 novels.the+序数词+最高级“第几最”Beijing Duck is the second nicest dish I have ever met.,She is _student in her class.她是班上最好的学生。Shanghai is one of _cities in China.上海是中国最大城市之一。This is _apple I have ever tasted.这是我尝到的最甜的苹果。Tom is _boy in his basketball team.汤姆是他们篮球队中个子最矮的孩子。,the best,the biggest,the sweetest,

12、the shortest,1.Whichis_,LiLeiorWuTong?A.strong B.strongest C.stronger D.thestrongest2.Whichlanguageis_,English,FrenchorJapanese?A.easy B.themosteasy C.theeasiest D.muchmoreeasy3.Whichis_ interesting,science,MathorEnglish?A.more B.themost C.very D.too4.Whichcityis_,Beijing,Shanghai orFuzhou?A.beautifulB.morebeautiful C.muchmorebeautifulD.themostbeautiful5.Whichmonthis_,June,JulyorAugust?A.hot B.hotter C.hottest D.thehottest,C,C,B,D,D,