中学生写议论文喜欢用例证法,但常把精力放在事例的叙述上。如果不知变化,平均使用笔墨,把几例放在同一平面上,常给人以事例堆砌之感。叶永烈同志的《文与理》则注意了用例的变化,从不同角度,以不同的写法突出了每一个事例的意义。为了批驳“科学家就等于数理化,学好数理化也就能当科学家”的偏见,树立文理并重的观点,连举三例,却无重复堆砌之感,为中学生写议论文的用例提供了借鉴。例一:苏步青例。作者先介绍苏步青的谈话,说明苏教授兴趣广泛,接着重点陈述苏教授的看法:“中学生应当文理并重,学不偏废。”“中文,是祖国的语言,一定要能熟练地驾驭它。搞科学的人一定要有文学修养。很难设想,有的人连写 Middle school students write argumentative papers that prefer exemplification, but they often focus on narratives. If you do not know about change, use ink and brush on an average and place a few cases on the same plane, often giving people a feeling of being piled up. Comrade Ye Yonglie’s “Literature and Theory” took note of the changes in use cases and highlighted the meaning of each case in different ways from different perspectives. In order to refute the prejudice that “scientists are equal to mathematics and physics and chemistry, and learn mathematics and chemistry, they can also be scientists”, the author attaches equal importance to both liberal arts and sciences, and gives three examples without any sense of duplication. This provides a reference for middle school students to write argumentative use cases. Example 1: Su Buqing. The author first introduced Su Buqing’s remarks, stating that Professor Su’s interests are extensive, and then he focused on Professor Su’s view: “Middle school students should pay equal attention to both liberal arts and science, and they should not neglect their studies.” “Chinese is the language of the motherland, and we must master it skillfully. People must have literary culture. It’s hard to imagine that some people even write