英语中的比较级和最高级省公共课一等奖全国赛课获奖课件.pptx

英语中比较级与最高级绝大多数形容词有三种形式,原级原级positive degree,比比较级较级comparative degree和最高级最高级superlative degree,以表示形容词说明性质在程度上不一样。形容词原级:形容词原级形式就是词典中出现形容词原形。比如:poortallgreatgladbad形容词比较级和最高级:形容词比较级和最高级形式是在形容词原级形式基础上改变。分为规则改变和不规则改变。第1页规则改变以下规则改变以下:1)单音节单音节形容词比较级和最高级形式是在词尾加-er和-est组成。greatgreatergreatestwarmwarmerwarmestlonglongerlongeststrongstrongerstrongest2)以-e结尾单音节单音节形容词比较级和最高级是在词尾加-r和-st组成。widewiderwidestclosecloserclosestbravebraverbravest第2页(3)以-y结尾,但-y前是辅音字母形容词比较级和最高级是把-y去掉,加上-ier和-iest组成.happyhappierhappiestfunnyfunnierfunniesthealthyhealthierhealthiesttidytidiertidiest(4)以一个辅音字母结尾其前面元音字母发短元音形容词比较级和最高级是双写该辅音字母然后再加-er和-est。hothotterhottestredredderreddestfatfatterfattestsadsaddersaddestthinthinnerthinnest第3页(5)部分双音节和多音节形容词比较级和最高级需用more和most加在形容词前面来组成。difficult,popular,helpful,cheerful,tired第4页不规则改变以下不规则改变以下：原级-比较级-最高级good,well-better-best bad,ill-worse-worst little-less-least few-fewer-fewest many,much-more-most far-farther/further-farthest/furthest old-older/elder-oldest/eldest late-later/latter-latest/last 第5页clean helpful easy cheerful tidy importantclose bigwide cleverhealthy tiredhot good sad far cleaner cleanesteasier easiesttidier tidiestcloser closestwider widest healthier healthiesthotter hottestsadder saddestmore most more most more most bigger biggest er est more most better bestfarther farthest第6页形容词比较级使用方法形容词比较级使用方法:1)同级比较同级比较必定形式必定形式：as+adj./adv.原级原级+as “和和一样一样”e.g.This apple is as big as that one.否定形式否定形式：not so/as+adj./adv.原级原级+as “和和不一样不一样”He doesnt write as carefully as his sister.2)差异比较差异比较“比比更更一些一些”，惯用连词，惯用连词than引导状语从句引导状语从句。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.第7页惯用来修饰比较级词：惯用来修饰比较级词：much,even,still,so much,a little,a bit,a lot,far等。等。只能修饰原级不能修饰比较级只能修饰原级不能修饰比较级：very,quite,so,ratherThis park is much more beautiful than that one.Toms father is a little fatter than Jims.第8页1.Our teacher is_ than we are.我们老师个子比我们高。2.It is _today than it was yesterday.今天天气比昨天暖和。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 class.7.Tom is a _(care)boy.He does everything _(careful).He does everything _ in his family.tallerwarmermore beautifulmuch more biggergoodbestthe laziestcarefulcarefullymost carefully第9页形容词和副词最高级使用方法形容词和副词最高级使用方法:形容词最高级用于两个以上人和物进行比较,其结构形式为:A+连系动词连系动词+形容词最高级形容词最高级+of/in/among Autumn is the best season in Beijing.A+实义动词实义动词+副词最高级副词最高级+of/in/among Who runs fastest in our school?第10页比较级和最高级特殊句型：比较级和最高级特殊句型：比较级比较级+and+比较级比较级 “越来越越来越”When it is going to rain,it can get darker and darker.比较级比较级+than any other+单数名词单数名词 “比其它任何比其它任何都都”Changjiang River is longer than any other river in China.the+比较级比较级,the+比较级比较级 “越越,就越就越”The more you eat,the fatter you will be.the+比较级比较级+of the two “两个中较两个中较那个那个”He is the taller of the two.第11页 Which/Who is+比较级，比较级，A or B?“A和和B哪一个哪一个/谁更谁更?”Which is more interesting,swimming or diving?Which/Who is+the+最高级，最高级，A,B or C?“哪一个哪一个/谁最谁最?”Which is the fastest way to travel,by plane,by bus or by train?one of the+最高级最高级+复数名词复数名词 “最最之一之一”I think Harry Potter is one of the most popular novels.the+序数词序数词+最高级最高级 “第几最第几最”Beijing Duck is the second nicest dish I have ever met.第12页Sheis_studentinherclass.她是班上最好学生。Shanghaiisoneof_citiesinChina.上海是中国最大城市之一。Thisis_appleIhaveevertasted.这是我尝到最甜苹果。Tomis_boyinhisbasketballteam.汤姆是他们篮球队中个子最矮孩子。the bestthe biggestthe sweetestthe shortest第13页1.Whichis_,LiLeiorWuTong?A.strongB.strongestC.strongerD.thestrongest2.Whichlanguageis_,English,FrenchorJapanese?A.easyB.themosteasyC.theeasiestD.muchmoreeasy3.Whichis_interesting,science,MathorEnglish?A.moreB.themostC.veryD.too4.Whichcityis_,Beijing,ShanghaiorFuzhou?A.beautifulB.morebeautifulC.muchmorebeautifulD.themostbeautiful5.Whichmonthis_,June,JulyorAugust?A.hotB.hotterC.hottestD.thehottestCCBDD第14页