初中·课本中不会教你的 554　There is a pen and three books.还是There are a pen and three books.

554　There is a pen and three books.还是There are a pen and three books.

　there be 结构中的名词主语通常有4种情况，be动词 的单复数要根据名词主语而定。

1　名词主语为单数，be动词 用单数。

There is a table in the corner. 角落上有一张桌子。

There is a pair of shoes on the floor. 地板上有一双鞋。

2　名词主语为复数，be动词 用复数。

There were several fights in the street yesterday. 昨天街上发生了好几起打斗事件。

There are many books on the desk. 桌子上有许多书。

3　名词主语为两个或两个以上并列的名词，而第一个名词为单数，这时，be 动词一般用单数，但也可用复数。

There is/are a pen and three books on the desk. 桌子上有1支钢笔和3本书。

4　名词主语为两个或两个以上并列的名词，而第一个名词为复数，无论按照“接近原则”还是“语法一致原则”，be动词都 要用复数。一般来讲，“接近原则”多用于口语体，而“语法一致原则”多用于书面语体。此外，here be 结构也当同样处理。

Here are some pens and a dictionary for you. （这儿）给你几支钢笔和一本词典。

There are three books and a pen on the desk. 桌子上有3本书和1支钢笔。