In conclusion, the homework are able to promote the students consolidating of the knowledge after the school. The student can develop their self control by doing homework, and in fact many pupils can't intend them selves. What's more, It is obvious that teacher can know and supervise the student learning by revising and correcting their compositions. So I think that students should have homework. But don't give too much homework, they should be able to actually do it and not feel too stressed.