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Agreementbetweensubjectandverb主谓一致主要有以下三个原则：1、语法一致原则（5种情况）2、意义一致原则（10种情况）3、就近原则语法一致原则1．and连接不同的人或事时作主语时,谓语动词用复数；但如果连接的名词指的是同一人或物,或同一概念时,谓语要用单数。Thesingeranddancer____goingtogiveusaperformance.Theknifeandfork____onthetable.2.不定式,动词ing形式或主语从句作主语时,谓语动词用单数。Whatheisdoingseemsveryimportant.Collectingstampsishishobby.3.定语从句的关系代词who,which,that在从句中作主语时，要与先行词的人称和数保持一致。Thosewhoenjoysingingmayjoinus.Tom,whoisyourfriend,shouldhelpyou.I,whoamateacher,lackhumor.4.with,alongwith,togetherwith,aswellas,besides,like,without,except,but,including如果句子中有这些连接词和主语连用,谓语动词的数随主语的变化而变化。例如：Theteachertogetherwithhisstudents,isplantingtreesinthestreet.5.manya,morethanone与单数名词组成的短语,谓语用单数。Manyaboyhasseenit.Morethanonestudentisrequiredtoredothehomework.意义一致原则1.不定代词all,more,some,any,none作主语,谓语动词视情况而定。Alloftheapples____rotten.Alloftheapple____rotten.2.therestof;halfof;partof;themajorityof等以及分数、百分比在句子中加名词作主语的时候,谓语动词与of后面的名词保持一致。Halfofthestudents_____finishedtheircomposition.Halfofthewater____(pollute).3.集合名词作主语，强调整体谓语动词用单数；指全体人员时,动词则用复数。这一类常见的集合名词有public,family,class,crowd,audience,team,government,group。Hisfamily____already________(move)toFrance.Hisfamily____allmusiclovers.4.某些名词如people,police,cattle等,形式上是单数,但意义上是复数,谓语动词应用复数。people指“民族”时是例外。Thepolice__________searchingforathief.Thecattle____________eatinggrassonthehill.5.不定代词作主语,谓语动词要用单数，如someone,somebody,something,anybody…等Someoneisaskingforyou.6.某些名词如clothes,trousers,shoes,glasses,pants,shorts等,通常只用其复数形式,但当它们被apairof修饰时,谓语动词用单数。Here_____anewpairofshoesforyou.7．某些名词以s结尾如maths,politics,physics,news,plastics等，谓语动词应用单数。Physicsisaveryinterestingsubject.8.以anumberof作主语时,谓语动词用复数;以thenumberof作主语时,谓语动词用单数。Anumberofnewbooksareonthedesk.Thenumberofstudentsinyouclassis50.9.单复数同形的名词,作主语的时候,其谓语动词由上下文决定,这一类名词有:means,works,deer,fish,sheep,Chinese,Japanese等。Noteverymeansisuseful.。Notallmeansareuseful.10.如果主语由“the+形容词(或过去分词)”结构担任时,谓语通常用复数;这类词有:thebrave,thepoor,therich,theblind,theyoung,theold,thesick,thedead等就近原则either...or;neither...nor;notonly...butalso,whether...or在句子中连接主语的时候或者在therebe句型中,谓语动词要和就近的主语保持一致。应该注意的几个问题:1.在主谓倒装的句子中,谓语动词的数应与其后的主语一致。例如:Betweenthetwowindows________（hang）apicture.2.a(large)quantityof修饰可数或不可数名词,其短语作主语时,谓语动词单复数看后面的名词。Alargequantityofpeople__________neededhere.quantitiesof修饰可数或不可数名词,其短语作主语时,谓语动词用复数。例如:Quantitiesoffood(nuts)___________onthetable.3.表示数量的oneandahalf后,名词要用复数形式,但是其短语作主语时,谓语动词用单数形式。例如：Oneandahalfbananasisleftonthetable.4.书刊名、时间、距离、价格、度量衡等的复数名词作主语时,谓语动词常用单数。Thirtyyearsisnotalongtime.RootsisafamousAmericannovel5.every...andevery...;each...andeach...;no...andno...在以上短语中and连接的单数名词,整个短语在句中作主语时,谓语动词常使用单数。Eachmanandeachwomanisaskedtoattend.Nosoundandnovoiceisheard.请用括号内所给词的正确形式填空。1.Threeyears_______(have)passedsincetheymetlasttime,andforthem,threeyears_______(be)reallyalongtime.2._______(be)everybodygoingtotakepartinthegamethisafternoon?3.Myfamily_______(be)thelargestoneinourvillage.Besides,myfamily______(be)allpartymembers.4.Thewholeclass________(be)nowlisteningtotheteacherattentively.5.Thenews______(be)veryexciting.6.Tolearnoneortwoforeignlanguages_______(be)veryimportantnowadays.7.Thelastandmostdifficultlesson_______(be)Lesson14.8.I,who_______yourfriend,willtrymybesttohelpyou.9.Thescientistandengineer_______(have)inventedanewmachine.10.Alice，togetherwithherfriends，_______(be)punishedforhavingbrokentheschoolrules.11.Everygirlandeveryboy_______(have)therighttojointheclub.12.—_______(be)eithersheoryoutogoandattendthemeeting?—NeithershenorI________(be).13.Ancientandmodernhistory_____(be)thesubjectswearestudying.14.Manyascientist_______(have)devotedtheirlivestoscience.15.Theold_______(be)respectedinourcountry.选择题：1．Oneortwodays____enoughtoseethecity．A．isB．areC.amD．be2．NeithermywifenorImyself____abletopersuademydaughtertochangehermind．A．isB．areC．amD．be3．NotonlyIbutalsoJaneandMary____tiredofhavingoneexaminationafteranother．A．isB．areC.amD．have4．Nottheteacher，butthestudents____lookingforwardtoseeingthefilm．A．isB．areC.amD．be5．NobodybutBettyandMary____lateforclassyesterday．A．wasB．wereC．hasbeenD．havebeen6．Awomanwithsomechildren____soon．A．iscomingB．arecomingC．hascomeD．havecome7．Nooneexceptmyparents____anythingaboutthis。A．knowB．knowsC．isknownD．areknown8．Theteacheraswellasthestudents____thebookalready．A．hasreadB．havereadC．arereadingD．isreading9．Allbutone____intheaccident．A．waskilledB．werekilledC．willbekilledD．arekilled10.NotonlyIbutalsoJaneandMary_____tiredofhavingoneexaminationafteranother.A.isB.areC.amD.be11.Alibrarywithfivethousandbooks___tothenationasagift.A.isofferedB.hasofferedC.areofferedD.haveoffered12.Whenandwheretobuildthenewfactory___yet.A.wasnotdecidedB.arenotdecidedC.hasnotdecidedD.havenotdecided13.Thenumberofpeopleinvited___fifty,butanumberofthem___absentfordifferentreasons.A.were;wasB.was;wasC.was;wereD.were;were14.E-mail,aswellastelephones,___animportantpartindailycommunication.A.isplayingB.haveplayedC.areplayingD.play15.____ofthelandinthatdistrict____coveredwithtreesandgrass.A.Twofifth;isB.Twofifth;areC.Twofifths;isD.Twofifths;are16Noonebutherparents_____it.A.knowB.knowsC.isknow