写了个independent writing， 请版主和大家不吝赐教哈

题目：In some classes, course grades are based on solely on exams, while in other classes, grades are based more on class participation. Which type of grading do prefer? Expain.

  I have an extreme preference to courses in which professors grade the

students based more on class participation rather than merely on exams. It

is  not only because I tend to get better grades on these courses but also,

technically speaking, grading refering to class participation is a more

scientific way.
 

The most crucial reason is grading regarding students' participation can

help the students with their intergrating skills. If a student expects a

better grade on such a course, he or she has to do more than simply conquer

a test paper. The student has to do a lot preparations which would,

probably, have nothing to do with the exams. However, these preparations

will not end up in vain. On the contrary, they provide the student a broader

vision in the domain.Many of the participation activities also offer the

students great opportunity to improve their lecturing abilities or can help

them be better confronting more practical problems. All these above can arm

the students with better skills.

As it comes to grading, the essential topic is to be fair to all the

students. Yes, exams can give a hand to the teachers on telling who masters

the courses better, but, not exactly. Some students may get a terrible grade

due to all kinds of reasons which could lead a single mistake in the exam.

Some may feel nervous for their character, some might have caught a cold

just before the exam, or a student just got his mind stuck into a dilemma

temperally...Students experience these situations all the time. That makes

grading only on examination a bad approach.
  

Another reason is advocating participation in class give merits to the

class itself. Teacher and students will be enjoying communicating better and

the class is more likely to take on an atmosphere of interaction which would

certainly trigger a stronger interest in the students on the course.
   Better class participation actually brings about a great deal of benefits

to both the teachers and the students. Take this grading issue deeper, why

students have to be graded? Because a nice grade boosts better understanding

of the course. However, we also have to admit that examination is actually a

passive way to achieve this very goal. Nothing teaches a student better than

the craving deep down in his heart for the knowledge he could get from the

course. Surely, this craving is not cultivated by exams.