四年级的小朋友现在能接触到“对对子”这个练习，对对子即对课，是一种动脑筋练习做诗的教学方法：老师出一个课题，学生对出一个相对的词语，这个词语与题目必须字数相等、词性相同，甚至自然景物名称、色彩都要相对，要求十分严格。少年时代的鲁迅在三味书屋读私塾（shú） The fourth grade children now have access to the “right pair” exercise, which is a kind of teaching method of using their brains to practice poem: the teacher out of a subject, the students out of a relative term, the word And the title must be the same number of words, the same part of speech, and even the name of natural scenery, color must be relative, the requirements are very strict. The youth of Lu Xun in shamisen reading private school (shú)