英文倒装句中，遵循就近原则的时候，单、复数是指

谓语动词。

eg:

There

is

a

pen,

a

knife

and

several

books

on

the

desk.

句子中

is

是有靠近它的

a

pen

决定的。

那么如果将

a

pen

与

several

books

交换一下

谓语动词

is

就改为are

因为就近原则

谁离谓语动词近

就由谁决定谓语动词的单

复

several

books

是复数

所以用are

形如：There

are

several

books

,a

pen

and

a

knife

on

the

desk.