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主谓一致谓语动词的数必须和主语的人称和数一致,这就叫主谓一致.IamateacherSheoftendoesherhomeworkinthemorning.Thereisonlyoneboxonthetable.Thereare50studentsinourclass.一、谓语动词用单数一表示时间，数目，距离，价格，度量衡等名词的复数作主语，并作为整体看待时，谓语动词用单数。1)Fourhoursisenoughtodotheexperiment.2)Tendollarsistoomuchtopayforthatshirt.3)Thirtyfeetislongenough.1.“______twentydollarsabigsumtoher?”“Isupposeso.”a.Willbeb.Isc.Ared.Were2.Threehours______enoughforustofinishthetask.a.areb.hasc.isd.were二clothing,furniture,traffic,jewellery,baggage,equipment,luggage等无生命的集合名词作主语时，谓语动词用单数。Clothingisbadlyneededinthisfloodedarea.三one/everyone/each/either/neither/theother/anotheranybody/anyone/anything/somebody/someone/something/everybody/everyone/everything/nobody/noone/nothing/thenumber+of+复数名词作主语或是独立充当主语时，谓语动词用单数。Eachofthestudentshasabook.Neitherofthemhastoldme.Eitheroftheanswersisright.1.Theyeach_____anewdictionary.A.hasB.haveC.isD.are2.Eachofyou______responsiblefortheaccident.a.amb.bec.isd.are3.Eachofthestudentsinourclass______greatinterestinEnglishandtheyeach_______acopyofNewEnglish-ChineseDictionary.A.shows；haveB.have；hasC.is；haveD.takes；has4.Thetwosistersareforcedtoplaythepiano.Infact，neitherofthem______toplayit.A.likeB.likedC.likesD.liking5.Nobodybuthisfamily______thesecret.A.knowB.areknownC.haveknownD.knew四every…and(every)……;each…and(each)…;no…and(no)…;manya…and(manya)…连接两个单数名词作主语时，谓语动词用单数。1.Everydeskandeverychair____madeofwood.(be)2.Manyaboyandgirl_____madethesamemistake.(have)3.Noboyandnogirl___(be)intheclassroom.4.Manyastudent____(like)popsongs.ishasislikes1.Eachmanandwoman______thesamerights.a.hasb.havec.hadd.ishaving2.Manyastudent______theimportanceoflearningaforeignlanguage.a.haverealizedb.hasrealizedc.havebeenrealizedd.hasbeenrealized3.Nochairandnodesk______permittedtobetakenawayfromthereadingroom.A.areB.wereC.isD.be4.Manyafather______learnttohissorrowwhatitistohaveasonwhotellslies.A.haveB.isC.areD.has5.Everyman,womanandchild______somehistory,enoughatleast,tosurviveintheworld.a.knowsb.knowc.isknownd.areknown五一个不定式，动名词，从句作主语时，谓语要用单数形式。两个或两个以上的不定式，动名词或是从句做主语时，，谓语用复数。但是如同这两个结构指一个概念，仍然用单数。Readingisagoodway.Tosayitisonething,todoitisanother.Whathesaysandwhathedoesdonotagree.Earlytogotobedandearlytorisemakesamanhealthy,wealthyandwise.1.Whenandwheretobuildthenewfactory_____yet.A.isnotdecidedB.arenotdecidedC.hasnotdecidedD.havenotdecided2.Whatcausedtheaccident______ontheroad.a.werestoneb.werestonesc.wasstoned.wasstones3.Gettingtootherplanetsortothemoon_____manyproblems.a.involveb.involvesc.involvingd.toinvolve六oneandahalf做主语时，谓语动词用做单数。Oneandahalfyearshaspassed.Oneandahalfappleshasrottedaway.七more＋复数名词＋thanone和morethanone＋单数名词的意义相同，均表示“不只一个”，但前者用作复数，后者用作单数。morethan+两个以上的数字+名词复数做主语时，谓语动词用复数。Morestudentsthanonewerepunished.＝Morethanonestudentwaspunished.Morethantwohundredpersonsarepresent.Morethanonewaskilledinthebattle.1.Morethanoneworker______dismissed.a.havebeenb.arec.hasbeend.has2.Morethanonegraduate______senttothehardestplacesince1979.A.isB.areC.hasbeenD.havebeen八以s结尾的词，但表示学科、国家、机构、书籍、报刊等名称作主语，谓语用单数。Mathsisausefulsubject..His“SelectedPoems”______firstpublishedin1970.A.wasB.wereC.hadbeenD.havebeen1.ThePhilippines______tothesouth-eastofChina.a.liesb.liec.layd.lays2.Mathematics______thelanguageofscience.a.isb.hasbeenc.ared.havebeen二、谓语动词用复数一由and或both----and连接主语，谓语动词用复数。1.Apoetandanovelisthavevisitedourschool.2.WuDongandWuXi______twinbrother.(be)are1.Thesingerandthedancer______cometothemeeting.A.hasB.haveC.areD.is2.ThesecretaryofthePartybranchandthedirectorofthatfactoryoften____withtheworkers.A.worksB.workC.isworkingD.areworking但：如果and连接的两个词是指同一个人，同一事物或同一概念，则两个名词共用一个冠词，谓语用单数。Eg:1）Theteacherandwriterisherfriend.2)Butterandbreadisherfavoritefood.3)Ajournalistandauthor_____(live)inthehouse4)Thedoctorandprofessor__(be)comingatonce.livesis1.TheLeaguesecretaryandmonitor___askedtomakeaspeechatthemeeting.A.beB.wasC.areD.were2.Wiskyandsoda______hisfavoritedrink.a.isb.arec.wered.havebeen3.Lightandheat_____oftensentouttogetherwithheavysmoke.A.isB.wasC.areD.being4.______waswrong.a.Nottheteacherbutthestudentsb.Boththestudentsandtheteacherc.Neithertheteachernotthestudentsd.Notthestudentsbuttheteacher二“定冠词+adj/分词”表示一类具体的人或物时，谓语用复数，若表示某一抽象概念，则用单数。1)Theold____takengoodcareofhere.(be)2)Theold______(give)placetothenew.3)Thetrue___(be)tobedistinguishedfromthefalse.4)Therich____(be)fortheplan,butthepooragainstit.aregivesisare1.Thewounded_______bythehospital.A.havebeentakeninB.hasbeentakeninC.havetakeninD.hastakenin2.Inthatcountry,therich______richer,thepoor,poorer.a.becomeb.hasbecomec.becomesd.isbecoming三有些名词本身表示复数概念，其谓语动词用复数形式，如people,police,cattle,goods,youth,clothes等。Eg:1)Thepolice____afterathief.2)Cattle_____ongrass.(feed)3)Allthegoods_______arrived.(have)arefeedhave1.Cattle______onthehillside.a.grazesb.isgrazingc.wasgrazingd.weregrazing2.TheyouthofChinatoday___tryingtheirbesttostudymodernscienceandtechnology.A.isB.wasC.wereD.are四表示成双成套的名词，如：trousers,shorts,shoes,socks,scissors,glasses,compasses,等做主语时，谓语动词用复数。Tom’strousersaretoolong.Yourglassesareonyournose.Thereisapairofshoesunderthebed.Thepairsofshoe