主谓一致是指在句子中,主语和谓语动词在数(单数或复数)和人称(第一人称、第二人称、第三人称)上要保持一致。在英语中,主谓一致有以下几个原则:
1. 就近原则(Proximity Principle)
就近原则是指谓语动词的形式应与离它最近的主语保持一致。这个原则通常适用于以下情况:
当主语后面跟有with, together with, as well as, along with, except, but, including等短语时,谓语动词的形式应与短语前面的主语保持一致。
例如:
The teacher, together with his students, is going to the museum.
The girl, along with her brother, is reading a book.
2. 就远原则(Distance Principle)
就远原则是指谓语动词的形式应与离它最远的主语保持一致。这个原则通常适用于以下情况:
当主语后面跟有由and连接的并列主语时,谓语动词的形式应与最远的主语保持一致。
例如:
The teacher and his students are going to the museum.
The teacher, along with his students, is going to the museum.
就近原则和就远原则有时会产生冲突,此时应遵循就近原则。以下是一个例子:
The teacher and his students, together with the headmaster, are going to the museum.
The teacher and his students, together with the headmaster, is going to the museum.
在这个例子中,根据就近原则,谓语动词应与the teacher保持一致,因此正确的句子是:
The teacher and his students, together with the headmaster, are going to the museum.