高中英语语法系统讲解之十二
主谓一致
主谓一致指的是句子的主语和谓语动词在人称和数上应保持一致,通常指的主谓一致是主语和谓语在单数和复数上的一致性。
一. 主谓一致的三个原则
1. 语法一致原则
主语单复数决定谓语动词的单复数形式,即主语是单数,谓语用单数;主语是复数,谓语用复数。如The number of errors is surprising.
Two students are waiting for you in your office.
2. 意义一致原则
主语形式虽为单数,但意义为复数,谓语动词用复数;主语形式为复数,但意义上为单数,谓语动词用单数。如The crowd were running for their lives.
The news was very surprising.
形复意单的单词有news,works(工厂),means和以ics结尾的学科名词politics,physics,economics等。
3. 就近原则
谓语动词的单复数取决于最靠近它的词语,主要体现在由or,either … or,neither… nor …,not only … but