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.
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    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。

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