内容正文:
Subject-verb concord
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。
主谓一致
语法一致
就近原则
意义一致
语法一致(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。
Eg:His father is working on the farm.
To study English well is not easy
The children were in the classroom two hours ago.
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。
Eg:What I bought were three English books.
What I say and do is (are) helpful to you.
2. 由连接词and或both .. and连接起来的合成主语后面,要用复数形式的谓语动词.
Eg:Lucy and Lily are twins.
Both she and he are Young Pioneers.
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
Eg:The writer and artist has come.
(2)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。
Eg:Every student and every teacher was in the room.
主语为单数名词或代词,尽管后面跟有with, together with, except, but, like, as well as, rather than, more than, no less than, 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。
Eg:Mr. Green, together