He asks some of the students to give him some of them.
问题描述：
He asks some of the students to give him some of them.
答
句型：ask sb to do sth.
答
He（主语） asks（谓语） some of the students（宾语） to give him some of them（宾补）.
就是个简单句，细分宾补如下：give（动词核心） him（间接宾语） some of them（直接宾语）
整句：他要求其中一部分学生把那些东西（不知道是啥）中的一部分拿给他
答
He（主语） asks （谓语）some of the students（宾语） to give him some of them（不定式做目的状语）