求考试的优点和缺点的英语作文?

提供个提纲,开拓思路：
Examination is an important part in people's life, especially in sudents' life. It has both
advantages and disadvandages.
Advantages:
First, taking an examination is a good way to choose people with ability. Because it gives everyone a rather fair chance to compete and show his or her abilities.
Second, examinations have good effects on stdents' study. It can supervise and urge students study hard to get perfect grades.
Disadvanteges:
First, too many examinations bring heavy burden to sudents.
Second, the formats of the tests are so hidebound that it is bad to train Fresh Talent.
Third, the existing test system is not perfect and there is not absolutely fair.