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一、由连接词连接的名词或带有后置定语的名词作主语1.[考例]：Whenandwheretobuildthenewfactory___yet.(NET’91)A.isnotdecidedB.arenotdecidedC.hasnotdecidedD.havenotdecided解析：当and连接的两个词表同一概念，或同一人（物）时，谓语动词用单数形式。2.[考例]:1)Alibrarywithfivethousandbooks___tothenationasagift.A.isofferedB.hasofferedC.areofferedD.haveoffered2)E-mail,aswellastelephones,___animportantpartindailycommunication.(上海’90)A.isplayingB.haveplayedC.areplayingD.play3)NobodybutJane___thesecret.(MET’86)A.knowB.knowsC.haveknownD.isknown当主语前有aswellas,asmuchas,nolessthan,alongwith,with,like,ratherthan,togetherwith,besides,inadditionto等引起的短语作后置定语时,谓语动词的形式视主语的单复数而定.3[考例]Eitheryouortheheadmaster___theprizestothesegiftedstudentsatthemeeting.(上海‘94)A.ishandingoutB.aretohandoutC.arehandingoutD.istohandout由either…or,neither…nor,notonly…butalso连接的两个词作主语时，根据就近原则，谓语动词的形式以邻近的主语的数而定。二、代词作主语1.[考例]---Eachofthestudents,workinghardathisorherlessons,___togotouniversity.---SodoI.(上海’98)A.hopeB.hopesC.hopingD.hoped当either(each,one)+of+复数名词,或some,any,no,every和body,one或thing构成复合不定代词作主语时,谓语动词用单数形式.none,neither作主语时,谓语动词单复数都可.2.考例：Sheisoneofthefewgirlswho___inthekindergarten.(上海‘94)A.iswellpaidB.arewellpaidC.ispayingwellD.arepayingwell关系代词在定语从句中作主语时，谓语动词的形式与句中先行词应保持一致。e.g.Thosewhowanttogopleasesignyournamehere.Thisisthephoto,whichshowsmyhouse.[注意]在“oneof+复数名词+关系代词”的结构中，定语从句中谓语动词用复数形式；但是若前有theonly,theevery将其限定为只有一个时，谓语动词用单数形式e.g.Tomisoneofthestudentswhoaregoodatplayingfootball.Tomistheonlyoneofthestudentswhoisgoodatplayingfootball.三、分词、量词作主语考例：___ofthelandinthatdistrict___coveredwithtreesandgrass.(上海2000)A.Twofifth;isB.Twofifth;areC.Twofifths;isD.Twofifths;are由分数或百分数或或alotof,lotsof,plentyof,alargequantityof,halfof,therestof+名词作主语时，谓语动词的形式与of后面的名词的数一致e.g.Lotsofdamagewascausedbyfire.Somestudentsareplantingtrees.Therestofthemarewateringthem.四、名词作主语1考例：Agroupof___areeating___and___atthefootofthehill.(NMET’95)A.sheep;grass;leavesB.sheeps;grasses;leavesC.sheep;grass;leafD.sheeps;grass;leafs由集体名词，如family,team,class,crew,company等作主语时，如果看成一个整体，谓语动词用单数形式,如果看成其中各成员，则用复数形式e.g.Hisfamilyisgoingtohavealongjourney.ThewholefamilyarewatchingTV.注意：集体名词为people,police,cattle，谓语动词用复数形式e.g.Thepolicearesearchingforthethief.2考例：Allthe___aremadeof___,notplastics.(MET’93)A.glass;glassB.glasses;glassC.glass;glassesD.glasses;glasses成双成对构成的东西，如glasses,shoes,chopsticks,scissors等作主语，谓语动词用复数形式，但与pair一起构成作主语时，谓语动词的形式与的数一致.e.g.Thisispairofglassesishis.1)作度量，距离，金额，篇名等用的复数名词作主语时，谓语动词用单数。e.g.TheEmperor’sClotheswaswrittenbyHansChristianAnderson.2）不定代词each,every,no所修饰的名词，即使用and或逗号连接作主语，或主语为morethanone,manya+n.谓语动词用单数Everyboyandeverygirlhasabookintheirbags.Manyateacherhasbeenthere.Morethanonechildhasreadthebook.3)在aseriesof,apartof,akindof+n.作主语时，谓语动词的形式根据名词的数而定e.g.Aseriesofworkshavebeenprinted.Apartofthefoodhasgonebad.4)these/thosekinds/typesof+n.作主语时，谓语动词用复数。e.g.Thesekindoftestsaregood.五、名词化的形容词作主语e.g.Thericharetohelpthepoor.Thewoundedwasayoungboy.以定冠词the+adj.（或过去分词）结构作主语，谓语动词常用复数形式，如thebrave,thepoor,theblind,thesick,theunemployed等，但有少数过去分词与定冠词连用时指个体，用单数形式。六、从句作主语1)Whatweneedismoretimeandmorematerials.2)Whatweneedareteachers.单个从句作主语时，谓语动词用单数，多个从句作主语时，谓语动词用复数，由what引导的主语从句，谓语动词用单数，但所指的具体内容为复数意义，则一般用复数形式。