students' model

In the modern life, we can easily see students in college who always be late for class, leave class before class is over or even be absent.
Revised: Nowadays, the phenomenon of students‟ arriving late and leaving early is very common at universities. What‟s worse, being late risers, some students are even absent from classes.
It is said that keeping the students‟ rate of presence is necessary for the education of university. Revised: It is said that students‟ remaining present
However, it is lucky that there are some methods which may help us solve the problem. For example, “signing name” could be a good idea. (这个句子表达可能一般，但是句子间的联系很紧密，过渡较好)
Attending class regularly will help to form a good habit of punctuality, which is beneficial to the whole life.
Stand a chance of doing sth.
miss the opportunity.
他总是当机立断，决不错过机会。

He never lets an opportunity slip; he's always on the mark.
Improve one‟s habit
Improve one‟s marks in school
Improve one‟s English/ chess
Their wages, working conditions must be improved.
He went to night school to improve himself.
The Apollo landings advanced our knowledge of the moon.
The shopkeepers advanced their prices.
His work advanced the science of microbiology.
Poor attendance can lead to bad grades in examinations. （注意修饰词，作文当中用书面语而不是口语）
By contrast, I think attending class regularly is compulsory.
On one hand, the students should be strict with themselves and attend class regularly. On the other hand, if the administrators hope to operate the university more efficiently, more relevant regulations need to be made.
We should make use of the time because the university time is prime.
Revised: We…d better make full use of the prime time at the university to absorb knowledge as much as we can.
Model
Attend Your Classes Regularly
Nowadays it is a very common phenomenon that some university students are late for or even absent from classes. And still there are some students who slip out of the classroom before the class is over. Class attendance has become a thorny problem to both the students and teachers.
In fact, it is very important for the students to attend their classes regularly. First, it will ensure you to catch up with the teachers in your learning. That is very helpful to you if you want to do a good job in your study. Second, attending classes regularly is a way of showing respect to your teachers, too. Your teachers will feel bad if the students do not attend their classes, which, in turn, will affect their teaching and be no good for the students. Third, attending classes regularly will help to form a good habit of punctuality, which is of great importance for the students to do a good job in the future.
Therefore, we university students should form the good habit of attending our classes regularly from now on. And some day we'll benefit from it.
现在大学校园里，迟到、早退、旷课是常见的现象
保证学生的出勤率对大学教育的重要性
作为一个大学生应该怎样做。