答案:There are many arguments for and against examinations. Many students complain that they have too many examinations. They study under a heavy burden of examinations and can hardly enjoy their free time. Teachers, however, hold different opinions. They consider that examinations are an effective way to urge students to work hard. They also think that examination is a good way to measure the effects of teaching.Examinations can tell what and how much the students have mastered. Such knowledge is important for both teachers and students. It will help teachers to improve their teaching methods as well as to decide what to teach in subsequent lessons. As for the students, those who have scored high will be greatly encouraged. And those who have not achieved satisfactory marks will be reminded of what problems they should pay special attention to. They will also consider if it is necessary for them to adjust their learning strategies.In summary, examinations do more good than harm for both examiners and examinees. Examinations reasonably arranged usually function as a constant reminder as well as a stimulus. In the process of learning as well as in the teaching of any subjects or skills, examinations are an indispensable tool.