here be句式和there be句式的be动词用is还用are要根据具体情况来分析：
there be句型中be动词由紧接着be动词的名词决定：1、there is an apple on the table. 紧接着的是an apple 是单数 所以用is
2、there is some water in the cup. 因为water是不可数的 所以be 动词仍用 is.
3、there are some computers in the classroom. 紧接着的是some computers是复数,所以用are
4、there is an apple and some oranges in the bag.因为紧接着的是an apple 是单数 所以仍用is.
5、there are many students and a teacher in the music room. 紧接着的是many students 是复数 所以用 are.当名词在be动词前,要整体考虑；当名词在be动词后则要采用就近原则：还要考虑单数和复数Here is a pen and some books for you. .Here are some books and a pen for you.