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1、语法讲义语法复习二、主谓一致在英语句子里,谓语受主语支配,其动词必须和主语在人称和数上保持一致,这就叫主谓一致。寻其规律,大致可归纳为三个原则,即语法一致、逻辑意义一致和就近一致原则。(一)语法一致原则:语法上一致就是谓语动词和主语在单、复数形式上保持一致。1、以单数名词或代词、动词不定式短语、动名词短语或从句作主语时,谓语动词一般用单数形式;主语为复数时,谓语动词用复数形式。如:Hisfatherisworkingonthefarm./TostudyEnglishwellisnoteasy./Whathesaidi
2、sveryimportantforusall./Thechildrenwereintheclassroomtwohoursago./Readinginthesunisbadforyoureyes.注意:由what引导的主语从句,后面的谓语动词多数情况用单数形式,但若表语是复数或what从句是一个带有复数意义的并列结构时,主句的谓语动词用复数形式。如:WhatIboughtwerethreeEnglishbooks./WhatIsayanddois(are)helpfultoyou.2、由连接词and或both…and
3、连接起来的合成主语后面,要用复数形式的谓语动词。如:LucyandLilyaretwins./SheandIareclassmates./Theboyandthegirlweresurprisedwhentheyheardthenews./BothsheandheareYoungPioneers.注意:①若and所连接的两个词是指同一个人或物时,它后面的谓语动词就应用单数形式。如:Thewriterandartisthascome.;/②由and连接的并列单数主语前如果分别有no,each,everymorethan
4、a(an),manya(an)修饰时,其谓语动词要用单数形式。如:Everystudentandeveryteacherwasintheroom../Noboyandnogirllikesit.3、主语为单数名词或代词,尽管后面跟有with,togetherwith,except,but,like,aswellas,ratherthan,96morethan,nolessthan,besides,including等引起的短语,谓语动词仍用单数形式;若主语为复数,谓语用复数形式。如:MrGreen,togetherw
5、ithhiswifeandchildren,hascometoChina./NobodybutJimandMikewasontheplayground./She,likeyouandTom,isverytall.4、either,neither,each,every或no+单数名词和由some,any,no,every构成的复合不定代词,都作单数看待。如:Eachofushasanewbook./Everythingaroundusismatter.注意:①在口语中当either或neither后跟有“of+复数名词
6、(或代词)”作主语时,其谓语动词也可用复数。如:Neitherofthetextsis(are)interesting.②若noneof后面的名词是不可数名词,它的谓语动词就要用单数;若它后面的名词是复数,它的谓语动词用单数或复数都可以。如:Noneofushas(have)beentoAmerica.5、在定语从句时,关系代词that,who,which等作主语时,其谓语动词的数应与句中先行词的数一致。如:Heisoneofmyfriendswhoareworkinghard./Heistheonlyoneofmy
7、friendswhoisworkinghard.6、如果集体名词指的是整个集体,它的谓语动词用单数;如果它指集体的成员,其谓语动词就用复数形式。这些词有family,class,crowd,committee,population,audience等。如:ClassFourisonthethirdfloor./ClassFourareunabletoagreeuponamonitor.注意:people,police,cattle等名词一般都用作复数。如:Thepolicearelookingforthelostch
8、ild.7、由“alotof,lotsof,plentyof,therestof,themajorityof+名词”构成的短语以及由“分数或百分数+名词”构成的短语作主语,其谓语动词的数要根据短语中后面名词的数而定。如:Therearealotofpeopleintheclassroom./Therestofthelectureiswonder