比较级最高级讲解

形容词的比较级和最高级重难点知识讲解：一、比较级的定义：大多数的形容词都有三个级别：原级、比较级、最高级。其中比较级表示更......，用于两者之间的比较，用来说明前者比后者更......，比较级前面一般用much,even,alittle修饰，其中even,much只能修饰比较级。二、比较级和最高级的构成：（1）规则变化：①单音节和部分双音节的形容词一般在词尾加-er,最高级加estcalm---calmer---calmesttall---taller---tallestsmart---smarter---smartest②以字母e结尾的直接在词尾加-r,最高级加estnice---nicer---nicestfine---finer---finestlarge---larger---largest③以辅音+y结尾的词，变y为i，再加-er,最高级加estearly---earlier---earliesthappy---happier---happiestbusy---busier---busiest④以重读闭音节的单个辅音字母结尾的词，双写辅音字母，再加-er,最高级加estbig---bigger---biggestthin---thinner---thinnesthot---hotter---hottest⑤多音节或部分双音节的形容词在原级前面加more，最高加mostEg:popular---morepopular-----mostpopularimportant---moreimportant----mostimportant（2）不规则变化：少数形容词的比较级变化是不规则的：good---betterbad/ill---worsemany/much---morelittle---lessfar---farther/furtherold---older/elder三、比较级的用法:(一)当两个人或事物（A和B）进行比较时，我们需要用到形容词（副词）的原级或者比较级1．表达A和B一样，用as...as的结构。公式:A+be动词+as+形容词原级+as...+BA+实义动词+as+副词原级+as...+BEgIamastallasyou.我和你一样高。HerunsasfastasI.他跑得和我一样快。2．表达A不如B用notas...as的结构。公式:A+be动词的否定形式+as+形容词原级+as...+BA+助词的否定形式+动词+as+形容词原级+as...+BEgIamnotastallasyou.我没有你高。Hedoesn'trunasfastasI.他没有我跑得快。2．表达A大于B用比较级+than的结构。公式:A+be动词+形容词比较级+than+B...A+实义动词+副词比较级+than+B...EgIamtallerthanyou.我比你高。HerunsfasterthanI.他跑得比我快。(二)关于形容词、副词比较级的更多用法1．比较级前面可以加上表示优劣程度的词或短语，意思是更...，...得...。常见词有much,alittle,even,alot,agreatdeal等。EgHeismuchtallerthanI.他比我要高得多。Ijumpalittlehigherthanhe.我跳得比他高一点点。想一想，这些词能修饰形容词或副词的原级吗？2.比较级前面可以加上表示具体数量差别的结构,表示具体大多少，小多少，长多少，短多少等。EgIamtwoyearsolderthanhe.我比他大两岁。Thisbuildingis20metershigherthanthatone.3．比较级+and+比较级表示越来越......。Itisgettingwarmerandwarmer．天气越来越暖和。Heisrunningfasterandfaster．他跑得越来越快。0urcountryisbecomingmoreandmorebeautiful．我们祖国越来越美了。4．themore...，themore...表示越......，就越......，Themore，thebetter.多多益善。Themorecarefulyouare,thefewermistakesyouwillmake.你越细心，犯错就越少。5．themore...ofthetwo...表示两个当中较。。。的一个Thetallerofthetwoboysismybrother.四、当三个或三个以上的人或事物进行比较时，我们需要用到形容词（副词）的最高级1．表达...是...中最...的,用the+形容词（副词）的最高级的结构。后面可以加上表示范围的介词短语或从句。公式：主语+be动词+the+形容词最高级+（名词）+表示范围的介词短语或从句主语+实义动词+（the）+形容词最高级+表示范围的介词短语或从句EgHeisthetallest(student)inourclass.Hejumpsthehighestofthethreeboys.ThisisthebestbookthatIhaveeverread.2．表示最...的...中一个，用oneof+the+最高级+复数名词的结构来表达。EgHeisoneofthebeststudentsinourclass.他是我们班最好的学生之一。Thisisoneofthemostbeautifulflowersinthegarden.这是花园里最漂亮的花之。注意：(一)形容词的最高级前面有定冠词the,而副词的最高级前面定冠词the可以省略。但在形容词最高级前有物主代词时，不能要定冠词the.（二）常见的用来表示范围的介词有in,of,among五、运用形容词、副词比较级应当注意的问题：(一)、按语法规则，than后面的人称代词应当用主格，但口语当中有时会用宾格代替主格。EgHeismorecarefulthanI(me).(二)、只有同类的事物才能比较e.gHerbagisbiggerthanmine.不能说HerbagisbiggerthanI.TheweatherofKunmingismuchbetterthanthatofShenyang.不能说TheweatherofKunmingismuchbetterthanShenyang比较级最高级练习题一、选择填空练习一()1.Thisboxis___thatone.A.heavythanB.soheavythanC.heavierasD.asheavyas()2.Whenwespeaktopeople，weshouldbe__________'.A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossibly()3.Thisbookis____thatone，but____thanthatone.A.asdifficultas;expensiveB.asmoredifficultas;moreexpensiveC.asdifficultas;moreexpensiveD.moredifficultas;asexpensive()4.Ithinkthestoryisnotso___asthatone.A.interestingB.interestedC.moreinterestingD.mostinteresting()5.Hisfatherbegantowork____hewassevenyearsold.A.asoldasB.asearlyasC.sinceD.while练习二()1.Ithinkscienceis_thanJapanese.A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant()2.Thispencilis___thanthatone.A.longestB.longC.longerD.aslong()3.Mymotherisno___young.A.shorterB.longerC.littleD.few()4.Thesechildrenare____thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtaller()5Itwasveryhotyesterday，butitis___today.A.evenhotterB.morehotterC.muchmorehotD.muchhot()6.MrsBlackhasgot____insteadofgettinganybetter.A.morebadB.alittleworseC.muchbadlyD.alotofworse练习三()1.Whenwearrived，wefoundthemeetingroomcrowdedwith___students.A.quiteafewB.onlyafewC.fewD.afewquite()2.Thehouseissmallforafamilyofsix.A.muchtooB.toomuchC.verymuchD.so()3.Throughthewindowwecanseenothingbut____buildings.A.tallverymanyB.verymanytallC.verytallmanyD.manyverytall（）4.-What'syourbrotherlike?-Heis___.A.adriverB.verytallC.myfriendD.atschool()5Thejacketwasso___thathedecidedtobuyit.，A.muchB.littleC.expensiveD.cheap()6Ourclassroomis____largerthantheirs.A.moreB.quiteC.veryD.much练习四()1Theearthisabout____asthemoon.A.asfiftytimebigB.fiftytimesasbigC.asbigfiftytimesD.fiftyastimesbig()2Yourroomismine.A.twiceaslargethanB.twicethesizeofC.biggertwicethanD.astwicelargeas()3Yourroomis___thanmine.A.threetimebigB.threetimesbigC.threetimesbiggerD.biggerthreetimes()4Hisfatheris____thanhismother.;A.olderfouryearsB.asfouryearsolderC.fouryearsolderD.biggerfouryears练习五()1Mathsismorepopularthan____.A.anyothersubjectB.allthesubjectsC.anysubjectD.othersubject()2Chinaislargerthan____inAfrica.A.anyothercountryB.othercountriesC.theothercountryJ1%D.anycountry()3Tomisstrongerthan___inhisclass.A.anyotherboyB.anyboysC.anyboyD.otherboy练习六()1.Whenspringcomes，itgets________.A.warmandwarmB.colderandcolderC.warmerandwarmerD.shorterandshorter()2.Byandby，_________studentsinourclasscametolikeEnglish.A.moreandmoreB.muc