比较级及比较句型课件

比较级及比较句型形容词和副词比较级的形式应和比较连词对应浮现,即应符合原级比较及比较级

1.的结构如-Do youenjoy listeningto records-I findrecords areoftenas goodas,or better than anactual performance..比较的成份应属于同类事物或者同类概念如2Young readers,more often than not,find thenovels ofDickens farmore excitingthanThackerays.----Thackerays novels上修交级的修饰语如,还有表3a little,a lot,the,any,even,far,hardly,lots,much,rather示倍数比较的词等，他们的位置是修饰语.，或者修饰语+as...as..如+more...than...oSmoking isso harmfulto personalhealth thatit killsseven timesmore peopleeachyear than automobile accidents.“Do youregret payingfive hundreddollars forthe paintingNo,I wouldgladlyhave paidtwice as much for it.”.下列词和短语不用比较级形式却表示比较概念4inferior,minor,senior,prior,prefer to,superior,major,junior,preferable,如:differfrom,compared with,in comparisonwith,differentfrom,rather thanoTheirwatch issuperior toall theother watcheson themarket.确的语序，彳中了侄!］装；在than easternNebraska does®比较结构的后面部份中，如果比较从句的主语长，谓语动词短，动词可放到主语前面进行到装A raysmore than infrared Brays aremore infraredthan例2:Hot objectsemitdo coldobjects.C more thaninfraredrays Dmore infraredrays than分析为及物动词,空格处缺宾语和引导比较从句的惟独符合条件注emit than,D意空格后为倒装形式，代替以避免重复此题为常考的句子结构do emit、对称性2比较结构中还需要注意相互比较的必须属于同一种事物，例例3:The activitiesof theinternationalmarketing researcherare frequentlymuch broaderthan.A the domestic marketerhas B the domestic marketer doesC those of thedomesticmarketer Dthat whichhas thedomesticmarketer分析本题还是考查比较句，由于谓语动词是系动词故先排除与其不对应的以are,和结尾的（勺和（）选项则语义不清,也可排除has doesB Do中代替前面提到的以避免重复,一定要具备，因为只有Cthoseactivities those这样才干满足比较的都是,谓语动词因与主句谓语动词相同而被省略，activities are因此为正确答案C例4:The annualworth ofUtah*s manufacturingis greaterthanA thatof itsmining and farming combinedB mining andfarmingcombinationC thatmining andfarming combinedD ofits combinationminingandfarming分析本题为比较句，普通来说，比较的双方应属于同勿（）、（）、（）TW BC D均无法与相对应,故可决非除the annualworth（）中代词代替是英语中常见的避免重复的用法，故选A thatthe annualworth,（）Ao省略性

3.和弓导的喉状语从句，如果意义明确，和后面的田可部份都可省than asI I:than as略当不同的主语进行比较时，普通省略从句中的谓语；A.（）（）1He istaller thanhis brother is.2You hatehim as much asI hatehim3We wereas fortunateas themthey were当从句中的主语与谓语（动词除外）和主句中的主语与谓语相同时,通常省略B.be从句中的主语和谓语，只保留比较的部份1My motheris muchbetter nowthanshe waswhen Iwrote toyou lastweek.2I haveasmuchconfidence inyou asI haveconfidencein him.3We areless credulousthan weused to be后面省略了表语than—than weused tobe credulous从句中的主语和谓语与主句的都不相同，有时可以省略主语（或者将看C.than做代词作为从句的主语1He eatsmore than it isgood forhim.2She hasfinished thework earlierthanithas beenexpected.3There werenot somany ticketsavailable as they wereasked for.同级比较

1.基本形式原级结构A.“as++as”eg.Hes astall asI.B.否定的同级比较常用not as・・as或者not so...as eg.He doesnot smokeso heavilyashis brother..变体C名词+1as+much/many+asThere are as manystudents inClass3as inClass

4.+形原级++名词2as a+asHe is as clevera boyas his brother.+形+不可数名词+3as as名词复数+形+4+as asIused tohave somedolls aslovely as yours.5the sameas/be similarto.比较级

2.基本结构“比较级结构A+than”He istaller than I amtall.She seesme more oftenthanshe seesher brother..变体B形比较级+名+1thanHe isa clevererboy thanhis brother.名+形比较级+2thanHe isa boycleverer thanhisbrother.形比较级+3the+of+the two4superior/inferior to最局级3常用最局级+比较范围”A.the+eg.This is the bestpicture in the hall.He singsthe bestintheclass.变体B.1more...than anyother比较等级2Not...+三.值得注意的比较级句型.比较级的特殊用法1匕俄级,匕障级1the+the+此句型表示后者随着前者的变化而变化，意为“越……就越……”，如The betterI knewhim,the moreI likedhim.The more difficult thequestions are,the lesslikely rilbe ableto answerthem.该结构一共有三条规则后面的名词必须使用冠词或者所有格

1.the more后面的谓语如果是动词的话，可以省略

2.the morebe.第二个后面可以使用倒装,而第一个后面却不行3the more其实是原因状语从句，前面是原因从句,后面是结果主句，倒the more,the more装句中必须是主句倒装，从句绝对不能够倒装例1:The stronger_magnet,the greaterthe numberof linesof magneticforce.A ofBtheC isthe Dis of the分析本题显然考查汽结构，后面的名词必须使he more...the more...”the more用冠词或者所有格，因此只能选择B例2:The lessthe surfaceof theground yieldsto theweight of the bodyof arunner,to thebody.A the stress itis greaterB greateristhestress Cgreater stressis D the greaterthestress分析正确答案为此题考句型,惟独符合这一句型的要求，Dthe more...the moreDo故选D一the greaterthestressit yieldsto the body匕儆级2the++of thetwo:He isthe tallerofthetwo.She wasthemorepromising workerofthetwo.上俄级匕瞰级3+and+此句型表示“越来越，如Things aregetting betterand betterevery day.Its becomingmore andmore difficultto finda job.…的特殊用法

2.as…as..句型可以用来t徽瓯诩谢恒蒲人的瓯诩弱征，表示两个事物的状况处于同等程度或者两个事物之间具有连带关系S1+V1+as+adj.1+S2+V2+adj.2He was as experiencedas hisbrother wasqreen.鲜验丰富，而他弟弟初出茅庐She isas kindas herbrotherishonest.The prisonsare asover-crowded asthe farmlandsare empty.监狱里人满为患，而农田却无人耕种（两者程度相等，但是状况截然不同，以突出两者的对照）・.句型还可以用来—个事物或者T人的两个不同的特^正,表

2.as..as..现个尚雨时诙，具有..的含义both...and.S+V+as+adj.1+as+adj.2S+V+as+n.1+as+n.2The landlordwas asgreedy ascruel.The problemsareasnumerous astrivial.It isasyourfault asyour wifes.as everlived:

3.as...as...can be,as...as anyanything,as...某事达到了无以复加的程度，最，极其They areas unreliableastheycan be.He isas greata mathematicianas anyas everlived.My sisterisasgreen asgreen canbe.He pretendstobeas modestas anything.）4as likelyas not:该结构并无否定含义，表示很可能之意，而且语气强烈例如He willforget allabout itas likelyas not.类似的用法还有,表示时常、往往之意as oftenas not,moreoftenthan not

3.not somuch...as...:这个句型用以肯定后面的内容,而在一定程度上否定前面的内容,表示“与其说asas还不如说”Experience showsthat successis notsmuch due to ability asto passion.一not somuchduetoabilityas dueto passionI was attractednot somuch by the plotofthestory asbytheactors excellentperformance.

4.1As Cis toD,so isA to B.这个句型表示与之间的关系就像与丫之间的关系,以人们所熟知的两个事物之A BX间的关系说明一个不被熟知或者被忽视的两事物之间的关系，是一种类比对于,宛如对于例如A BX YoAsthe houseis to the man,so isthe nestto thebird.As foodis to thebody,so isreading tothe mind.2A is toBwhat Cis toD|The peopleistothe Partysarmy whatwater istofish.Reading istothemind whatexercise istothebody.与的相关特殊用法

5.more thanless than1more Athan B:薮若羽以的含义,肯定的是而在■趣上否定“与not somuch...as A,B其说是,还不如说是B A”He ismore bravethan wise.The childwas morefrightened thanhurtMany patientsdie moreof worrythan ofcancer whenthey getto knowthe truthabouttheir illness.…的特殊用法2more…than对同一对象的两个方面进行比较若是对同一个人或者物在不同方面进行取舍时,意为“与其说……倒不如.“，如・・・・・He ismore hungrythan tired.Iwasmore annoyedthan worried.+名词/形容词/分词3more than表示内容超出了后面词语所表达的范围，“不只于，超过，极其”例如:If youtell yourfather whatyouve done,hell be.We weremore thanhappy tohear ofyour return.与4no more...than not more...thanno more…than表示对两者都否定，意为“同一样不”=neither.・.nor；指两者虽都具有某种特征，但程度不同,意为“不如”、“不及”=not more...thannot so...asoHe is no more a writerthanapainter.=He isneither apainter nora writer.Hes no more ableto read Spanish than I am.=Neither henor Iam notreadSpanish.This bookis not moredifficultthan thatone.=This bookis notso difficultas thatone.与5no more…than no less...than意为“与...一样不，否定两者；no more…than表示咻口...一样，肯定两者no less…thanShes no moreagreat singerthanIam.他不是优秀歌手，我也不是Your brotheris no less wisethan you.你的兄弟跟你一样聪明匕瞰级+6not+than/+匕俄级+no than匕俄级前加,表示前者不如后者、与相当；not notas...as必咬级前加是对两者的否定,意为“和一样不”,与…或no neither…nor者相反意义的形容词或者副词相当如“as++as”He is not tallerthan me.He isno tallerthan me.他同我一样不高即一样矮His Englishisnotbetter thanmine.His Englishisnobetterthanmine.他的英语同我的英语一样不好即一样差与时7nomore than notmore than仅仅，“只无非强调少;nomorethan表示“不多于”、“至多”无强调notmorethanThis testtakes nomorethanthirty minutes.For thirtyyears,he haddone nomorethanhe hadneeded to.He hasnotmorethan threechildren.他最多个孩子有兴许还不到个之意33与表示数量

8.no less than not lessthan意为“多达”、“有…之多”，强调多；no lessthan表示“不下于”、“至少”如not lessthanHe paidnolessthan$10,000for it.He paidnotlessthan$10,000forit.U!.比较级及上匕较句型注意要项他上学至少要走五英里He walksnolessthan fivemiles toschool.比较结构中要注意:、倒1A doesB inC it does inD initdoes例1:Western Nebraskagenerally receivesless snowthan easternNebraska.分析引导戢状语从句，空格后面是个专有名词,肯定是匕徽从句的主语,空thanI:格处明显缺从句的谓语动词，惟独符合条件，故选A A。