please give me some suggestions about my work.

Do you agree or disagree with the following statement?
All university students should be required to take history courses no matter what their field of study is.
Use specific reasons and examples to support your answer.

In china , our subjects in university were divided into two fields : liberal arts and sciences, both of which is merely involve history and literature. I think university is missing point. In my opinion, education in college should be comprehensive. Meanwhile, education should develop all abilities of students in all aspects. Learning history, for instance, is related to origin of country and any sciences or fields. Only if we know history, can we successfully create a better future successfully.
In university, We must in line with experience accumulated by our ancestors and scientist (?). That’s the reason why we are bound to learning history no matter what field you study. In addition, we can avoid some mistakes appeared before studies of the past through the knowledge and experience of initiators those who came before. In a word, learning history is important for any fields.

Instead of saying "ancestors" try "predecessors" or "those who came before"

In English the word ancestor implies family relation. 

Good job!