主谓一致 Ⅰ.含义:在英语句子中,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。 分类:语法一致原则、逻辑意义一致原则、就近原则。 Ⅱ. 语法一致原则:谓语动词和主语在单、复数形式上保持一致。 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。 His father is working on the farm. To study English well is not easy. Reading in the sun is bad for your eyes. What he said is true. 【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。 What I bought were three English books. What I say and do has nothing to do with you. a pair of +表无生命的名词+单数谓语;a pair of +表人或动物的名词+单数/复数谓语: This pair of shoes is not mine. The happy pair is / are going to Hawaii for their honeymoon. 2.“单数名词 + and + 单数名词”作主语,谓语动词用复数: You and I are good friends. The boy and the girl were so surprised when they heard the news. 【注意】★如果and 并列的主语指的是同一个人或物时,谓语动词用单数: a/ the + 单数名词(人)+ and + 单数名词(人)+ 单数谓语 a/ the + 单数名词(人)+ and + a/ the + 单数名词(人)+ 复数谓语 The dancer and singer was greeted by a crowd of people. The dancer and the singer were greeted by a crowd of people. 由and连接的并列单数主语前如果分别有no, each, every more than a (an) , many a (an)修饰时,其谓语动词要用单数形式: Every man, woman, and child needs love. Each boy and girl was given a book. Every minute and every second is precious. 有些用and连接起来的单数名词,由于关系密切,已被看成一个整体,因而作主语时,谓语单词用单数。这类名词词组有: knife and fork 刀叉 needle and thread 针线 bread and butter 面包和黄油