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•22.Thefactthatsomanypeoplestillsmokeinpublicplacesthatwemayneedanationwidecampaigntoraiseawarenessoftherisksofsmoking.(2011江苏卷）A.suggestB.suggestsC.suggestedD.suggesting【解析】考查时态及主谓一致。句意：仍有许多人在公共场合抽烟，这个事实表明我们需要一场全国性的运动来增强抽烟有害健康的意识。【答案】B•35.Allthescientificevidencethatincreasinguseofchemicalsinfarmingdamagingourhealth.(2012湖南卷）A.show;areB.shows;areC.show;isD.shows;is【解析】句意：所有的科学证据表明：农业方面越来越多的使用化学物质正在损害着我们的健康。主语是evidence“证据（不可数名词）”，所以谓语动词应用单数式shows，宾语从句的主语是use“使用（不可数名词）”，所以要用is。【答案】D主谓一致AGREEMENTUsefulstructures语法详解：所谓主谓一致是指主语和谓语动词之间,即主语的人称和单复数形式决定着谓语动词对应的形式。Theboy___diving.They____diving.BothJackandTim___diving.Allofthem____diving.NeitherJacknorTim___walking.isareareisareFinishthefollowingexercises:BobBob_____aworker.isMikeMikeandBob_____workers.areBothMikeandBob____workers.areNeitherMikenorBob___ateacher.isBillNeitherofthem___________(know)howtoteachEnglish.knows/knowAllofthem______workers.Noneofthem___________(know)howtoteachEnglish.areknows/know主谓一致主要有以下几种情况：1.and连接两个或两个以上单数名词或者代词作主语的时候,谓语动词有以下两种情况：(1)Heandshe_____bothstudentsofthisschool.他和她都是这个学校的学生。如果指两个或两个以上不同的人或事物的时候,谓语动词用复数。一、语法一致原则are(2)但如果连接两个以上的名词指的是同一个人或物,或者指同一概念的时候,谓语要用单数。Thesingeranddancer____goingtogiveusaperformance.那个歌唱家兼舞蹈演员要给我们表演。Theknifeandfork____onthetable.刀叉在桌子上。isis2.如果主语是不定式,动词ing形式或主语从句的时候,谓语动词一般用单数。Whenheiscoming______veryimportant.他什么时候要来看起来很重要。Collectingstamps____hishobby.收集邮票是他的爱好。Toloveher_____nottobreakherwings.爱她就不该折断她自由飞翔的翅膀。seemsisis3.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。Thosewho______singingmayjoinus.Tom,who___yourfriend,shouldhelpyou.enjoyis4.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：Theteacher,togetherwithhisstudents,_____plantingtreesinthestreet.老师和他的学生们正在街道上植树。isMr.Black,aswellastwowomen,______attheoffice.isMr.Blackwith,togetherwith,alongwith1.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。二、就近原则NeitheryounorI____wrong.There_____acupofteaandsomeapplesonthetable.amisNotonlythestudentsbutalsotheteacher______foraholiday.wishes三、概念一致原则所谓概念一致原则是指谓语动词和主语一致不是取决于主语的语法形式,而是其实际意义。有的主语名词在形式上是单数,但在意义上却是复数；有的主语名词在形式上是复数,但在意义上却是单数。1.不定代词all,more,some,any,none作主语,谓语动词视情况而定。Alloftheapples____rotten.所有的苹果都烂了。Alloftheapple____rotten.整个苹果都烂了。areisNoneofthemoney_____left.没有剩下一点钱。Noneofthestudents_____there.没有学生在那里。isisNone和neither有时当作单数看待，有时当作复数看待，主要根据说话人的意思决定。做主语时，谓动可用单数，也可用复数。但在代表不可数名词时常看作单数，因而谓动须用单数。Neitherofthem___________(know)howtoteachEnglish.Noneofthem___________(know)howtoteachEnglish.knows/knowknows/know2.therestof;halfof;partof;majorityof;percentof;onethirdof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.一半的学生已经完成了他们的作文。Halfoftheapple____bad.一半的苹果坏了。About60percentofthestudentsinourschool____boys.我们学校,大约百分之六十的学生是男生.haveisare3.集合名词作主语,动词可用单数,也可以用复数。主要由句子的意思决定。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,population,team,group。Hisfamily____goingout.他们全家要外出。Hisfamily____allmusiclovers.他们全家人都是音乐爱好者。isare4.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.areare5.复合不定代词作主语,谓语动词要用单数，如someone,somebody,something,anybody,anyone,anything,everybody,everyone,everything,nobody,noone,nothing。Someone_____askingforyou.有人找你。Nothing_____foundintheroom.在屋子里什么也没找到。isis6.某些名词如clothes,trousers,shoes,glasses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。如:Theshoes_____wornout.鞋子破了。Thepairofshoes_____wornout.这双鞋破了。areis名词如trousers,pants,shorts,glasses,scissors以及clothes,goods等做主语，谓动要用复数；但当这类词前有a/thepairof修饰时，谓动用单数。7.某些名词以s结尾如maths,politics,physics,news,plastics等，谓语动词应用单数。物理是一门很有趣的学科。Physicsisaveryinterestingsubject.8.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。Eachmanandeachwoman______askedtoattend.is班级中的每个男孩女孩都很用功。听不到任何声音。Everyboyandeverygirlintheclassisdiligent.Nosoundandnovoiceisheard.9.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。Anumberofnewbooks_____onthedesk.Thenumberofstudentsinyouclass_____50.areis10.有些名词的单数和复数形式一样,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。Noteverymeans____useful.不是每种方法都好使。Notallmeans______useful.不是所有的方法都好使。isare11.manya,morethanone,oneandahalf与单数名词组成的短语,谓语用单数。Manyaboy____seenit.许多孩子都看到了。12.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。Thirtyyears____notalongtime.RootsisafamousAmericannovel.hasis1.thiskindofbook=abookofthiskind(这种书),其谓语用单数;短语thiskindofmen=menofthiskind=thesekindofmen(口语)(这一类人),但thiskindofmen的谓语用单数,menofthiskind和thesekindofmen的谓语用复数,allkindsof后跟复数名词,谓语用复数形式。例如：应该注意的几个问题:Thiskindofmen____dangerous.Menofthiskind_____dangerous.2.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______apicture.isarehangs3.“分数或百分数+名词”构成的短语以及由“alotof,lotsof,plentyof,alargequantityof,aheapof,heapsof,halfof+名词”构成的短语作主语时,其谓语动词要与短语中of后面的名词的数保持一致,这是因为短语中后面的名词是中心词,而短语中前面的量词是修饰语。例如:Lotsofdamage____causedbyfire.Aboutthree-fourthsoftheearth’ssurface____coveredwithwater.Three-fifthsoftheworkershere___women.和这种情况类似的还有“anumberof+名词