信息给予题以其背景陌生、构思精巧、公平公正性而受到命题者的青睐.下面笔者通过实例对其加以分类解析. 一、给出新定义例1 (2004年江苏高考题)1919年, Langmuir提出等电子原理:原子数相同、电子总数相同的分子,互称为等电子体.等电子体的结构相似、物理性质相近. Information given questions are favored by propositioners with their strange backgrounds, sophisticated ideas, fairness and fairness. The following author classifies them by examples. First, gives a new definition example 1 (Jiangsu college entrance examination questions in 2004) 1919, Langmuir The principle of isoelectronics is proposed: molecules with the same number of atoms and the same total number of electrons are mutually called electrons. The structures of the electrons are similar and their physical properties are similar.