必修4unit1语法公开课获奖课件.pptx

unit1WomenofachivemenUsefulstructures语法详解：所谓主谓一致是指主语和谓语动词之间,即主语人称和单复数形式决定着谓语动词对应形式。xyh主谓一致重要有如下几种状况：一、语法一致原则1.and连接两个或两个以上单数名词或者代词作主语时候,谓语动词有如下两种状况：假如指两个或两个以上不一样样人或事物时候,谓语动词用复数。eg.Heandshe_____bothstudentsofthisschool.xyh但假如连接两个以上名词指是同一种人或物,或指同一概念时候,谓语要用单数。eg:Theknifeandfork____onthetable.刀叉在桌子上。注：(表达一种事物)Saltandwater盐水needleandthread针线breadandbutter黄油面包有and连接单数并列主语前有no,each,every,manya修饰后用单数eg:1.noboyandnogirllikethebook2.eachboyandeachgirlhereiscleverajy2.假如主语是单个不定式,动词ing形式或从句时候,谓语动词一般用单数。eg.Whenheisingseemsveryimportant.他什么时候要来看起来很重要eg.Collectingstampsishishobby.搜集邮票是他爱好。3.with,alongwith,togetherwith,aswellas,besides,ratherthan,like,without,except,but,including谓语动词单复数看这些词前主语（就远原则）eg.Theteachertogetherwithhisstudentsisplantingtreesinthestreet.hisparentsaswellashearegoingtotakeatrip.hhy4.定语从句关系代词who,which,that在从句中作主语时，要与先行词人称和数保持一致。eg.Thosewhoenjoysingingmayjoinus.Tom,whoisyourfriend,shouldhelpyou.heisoneofmyfriendswhoarefondofmusic二、就近原则1.either...or;neither...nor;notonly...butalso,whether...or在句子中连接主语时候在或therebe句型中,谓语动词要和就近主语保持一致。lzq三、概念一致原则2.表达时间重量长度价值等名词复数做主语，谓语用单数eg.1.thirtyyearsisnotlonginhistory2.5,000kilometresisalongdistance3.某些名词如clothes,trousers,shoes,glasses等,一般只用其复数形式,但当它们被apairof修饰时,谓语动词用单数。eg.Thepairofshoesiswornout.这双鞋破了。Theshoesarewornout.5.某些名词以s结尾如maths,politics,physics,news,plastics等，谓语动词应用单数。eg.Physicsisaveryinterestingsubject.物理是一门很有趣学科。czy6.不定代词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,nothingeg.Someoneisaskingforyou.有人找你。7.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。8.表达数量oneandahalf后,名词要用复数形式,不过其短语作主语时,谓语动词用单数形式。例如：Oneandahalfbananasisleftonthetable.9."分数或百分数+of+名词"作主语时,谓语动词数与名词数一致。pyh练习：