Are these sentences correct?

学生考试抄袭（现象）你觉得怎么样？

学生在考试中抄袭，是因为：
１。他们没有学习
２。他们没有学习太多
３。他们压力很大，他们想得到高分。
有可能学生有更多的原因去考试抄袭。

我明白得到高级高分很好，但是他们不应该有太大的压力。
而且我觉得努力的学生不想同学抄袭他们的考试（试卷）。
上大学的时候我不喜欢同学抄袭我的答案。
考试要想通过就得非常公平。
他们未经学习就通过了。

学生（就）应该学习。如果他们不明白，他们一定应该问他们的老师帮他们。（他们应该向他们的老师寻求帮助）

Students who cheat on tests cheat because :
1. They haven't studied
2. They haven't studied enough
3. They have a lot of pressure, they want to get high grades
There are probably more reasons for students to cheat on their tests.

I understand that getting high grades are very good, but students should not have that much pressure.
But I also think that students that have studied don't want their classmates to cheat.
When I was a university student I did not like classmates to copy my answers. It's very unfair when they pass the test. They pass the exam without studying.

Students should study, if they don't understand something they defitenly should ask their teachers for help.