考点二：

　　就近原则： 由 either … or … ; neither … nor …; not only…but also…; …or …; there be …等引导的主语，谓语动词与最邻近的主语保持一致。

　　Not only the students but also their teacher is invited to attend the party.

　　 不单是学生，他们的老师也被邀请到宴会。

　　Either you or she is to go.

　　不是你去，就是她去。

　　There is a pen, a knife and several books on the desk.

　　桌上有一支笔、一把小刀和几本书。