教材是教师教学活动的脚本,是学生进行课堂学习的基本载体,因此,教材内容对课堂教学活动的制约作用非常明显。如果教材内容选材、立论不当,阐述上不能取信于学生,无疑会使正常的教学内容难以为学生所接受。以人教版初中《世界历史》下册第4课《经济大危机》为例,教材在处理美国大萧条期间销毁过剩农产品这一问题时,依然遵循旧有的思维方式,对销毁农产品问题的分析和评价基本上脱离了市场经济的框架。在史料支撑、逻辑自洽和中外比较 Textbook is a teacher's teaching activities script, is the basic carrier for students to learn in the classroom, therefore, the teaching content of the classroom teaching activities is very obvious. If the textbook material selection, improper theory, can not gain the letter on the students, will undoubtedly make the normal teaching difficult for students to accept. Take PEP 4, “World History”, Chapter 4, “The Great Economic Crisis,” as an example. When teaching materials deal with the problem of destroying surplus agricultural products during the Great Depression in the United States, the teaching materials still follow the old way of thinking and treat the problem of destroying agricultural products Analysis and evaluation basically depart from the framework of a market economy. In the historical support, self-consistent logic and comparison of Chinese and foreign