Subject–verbagreement(主谓一致)Step1:语法一致原则,主语为单数形式,;主语为复数形式,谓语动词也用复数形式。(1).Ioften________(help)himandheoften________(help)me.(2).Weoften________(help)eachother.(3).HeandI______(be)bothstudentsofthisschool.(4).Timeandtide_______(wait)fornoman.1.单数名词、不可数名词、单个动词不定式短语、动名词短语以及做主语时，谓语动词要用单数。Tostartsmoking_____(be)quiteeasy,buttogiveitup_________(need)courage.Whetherwe’llgo__________(depend)ontheweather.2.名词复数；用and或both…and连接的名词、动词不定式短语、动名词短语及句子做主语时，谓语动词用复数。Swimmingandwalking________(be)goodexercise.Bothhismotherandhisfather__________(have)gonetheir.注意：1由and连接的两个词指同一个人、同一物、同一事或同一概念时，谓语用单数。如：breadandbutter，knifeandfork，ironandsteel，awatchandchain，aneedleandthreadTheknifeandfork_______(be)onthedesk.Thesecretaryandmanager_______(be)verybusynow.2由each…andeach…,every…andevery…,no…andno…,manya…andmanya…连接名词做主语，谓语用单数。Everyboyandeverygirl________(have)therighttoreceiveeducation.3以with/alongwith/togetherwith,aswellas,besides,inadditionto,including,except,like,ratherthan,等介词连接的名词或代词做主语，遵循就远原则I,ratherthanyou,______(be)toblamefortheaccident.4不定代词_everyone,everybody,everything,anyone,anybody,anything,noone,nobody,nothing,either,each,oneanotherneither,someone等等做主语时，谓语用单数；none做主语时，谓语单复数都可。Nothingintheworld_______(move)fasterthanlight.Eitheroftheshirts________(fit)meverywell.Noneofthestudents_____________(have)passedtheexam.Neitherofthem__________(have)beentotheGreatWall.Step2意义一致原则:指根据主语的意义来确定谓语动词的数。当主语意义为复数时，谓语动词要用__复数______形式；当主语意义为单数，谓语动词用_单数__________形式。1)TheUnitedStates_______(be)highly-developednow.２）Thescissors______(be)sharp.以—s结尾的词，常见的如news,physics,politics,economics,mathematics,theUnitedStates等做主语，谓语用单数。但是，trousers,scissors,clothes,goods,glasses等成双成对的名词作主语，谓语用复数。2)Achemicalworks_______builthere.A.istobeingB.havebeenC.weretoD.hasbeenEverymeans__________________(try)sincethen.3)Nowthecattle_______(be)eatinggrassesoverthere.集合名词cattle(牛群),__________(人们),___________(警察)等作主语，谓语用______数。4)Theclass_____(be)madeupof50studentsandalltheclass_______(have)gonetotheplayground.集体名词class,family,team,group,government,audience,crowd,crew,public等作主语时，若强调整体，谓语用_____数，若表示组成该集体的分散个体时，谓语用_____数。（Page5,Ex.2）5)“All_______(be)presentandall_______(be)goingonwell,”saidourmonitor6)Mostoftheapple________(be)eatenbyarat,andmostofthoseapples_________(be)rotten.主语是疑问代词who,what,which;,most，half,part,therest等，谓语的单复数取决于其所指的内容。7）Three-fourthsoftheearth’ssurface________(be)sea.40percentofthestudentsinourclass________(be)girls._________和_________作主语，谓语单复数取决于后面的名词或它所指的内容。8）Therich_________(be)notalwayshappy.Thenew_________(be)suretoreplacetheold.The+形容词或分词如指一类人，其谓语用______数，如指事物或抽象概念，其谓语用_____数。9）Tenthousanddollars_________(be)quitealargesum.表示时间、重量、长度、价格等复数名词作主语，从整体来看时，谓语用单数;10）Morethanoneman_________(have)cometohelpus.Manyaman________(have)cometohelpus.Manymen_________(have)cometohelpus.“moret...
