关于be动词的选择：
当名词在be动词前,要整体考虑；当名词在be动词后,则要采取就近原则.
例如：
1.Here is a pen and some books for you.
2.Here are some books and a pen for you.
3.Some books and a pen are on the desk.
4.A pen and some books are on the desk. 关于be动词的选择：
当名词在be动词前,要整体考虑；当名词在be动词后,则要采取就近原则.
例如：
1.Here is a pen and some books for you.
2.Here are some books and a pen for you.
3.Some books and a pen are on the desk.
4.A pen and some books are on the desk.