作文考试命题不易,因为它要求命题者,一、对学生的思想认识水平、生活内容、写作基础诸方面作全面的考虑,使题目难易适度。二、能对它拟出比较客观的、合理的评分标准,使取得的分数能反映出优劣高下的“全距离”来。三、保证考试成绩的可信性。即,不使在取得的分数中羼入虚假的成分。如, The composition examination proposition is not easy because it requires propositions. First, it makes a comprehensive consideration of the students’ level of ideological knowledge, living content, and the basics of writing. Second, it can draw a more objective and reasonable scoring standards for it, so that scores can reflect the advantages and disadvantages of the “full distance”. Third, to ensure the credibility of the test results. That is, false components are not added to the acquired score. Such as,