| Textbooks as the materializing stuff are the material embodiment of the curriculum standard as well as the important resource and medium for teachers and students. With the publishing of the new curriculum program for senior high school and curriculum standard for every subject in 2003, the senior high school curriculum experiment is put into practice. Until now, textbooks of three editions have appeared. They are separately published by People's Education Press, Jiangsu Education Press and Shangdong Science and Technology Press. And they have been put into practice in Shandong Province, Guangdong Province, Hainan Province and Ningxia Province. The diversification of textbooks proposed in the new curriculum setting will bring us more questions to study. How to make full use of the textbook in teaching and how to improve the compiling of the new textbook have become the problems needed to be solved urgently in the practice of the new curriculum. This paper analyzed the section of"The Chemical Reaction Mechanism"in these three textbooks through the method of comparison. We hope that we can offer this thesis for teachers in their choice and implementation of the new textbook as well as offer reference for the person who compile textbook.The paper consists of five parts.The first part puts forward the problem. It shows clearly the reason of selecting this topic by an explanation of such issues as senior high school chemistry curriculum reform, the compiling of senior high school chemistry textbook and the request of senior high school chemical teaching.The second part is the aims, tasks and methods of the study.The third part is the base study of the thesis. It includes two sections. The first section is the demands to compile textbooks. The second section is the construction of the model. At the beginning, this paper summarizes the demands for compiled textbook of the new chemical curriculum in senior high school. And then, we analyzed the following three parts, choice of the content, organization of the content and the showing of the content according to the analytical model of the chemistry textbook.The fourth part, which is also the emphasis of the paper, is the analysis of the textbook. According to the analytical model of these textbooks, this part analyzed the section of"The Chemical Reaction Mechanism"in these three editions concretely. For the analysis on the choice of the content, the thesis proceeds with two angles, one is the content standards in curriculum standard, the thesis lists the concrete content and the columns in the textbook which embody the content standard, it also points out the inconsistency between the textbook and the curriculum standard; While the other is by classifying the knowledge in the textbook into factual knowledge, theoretic knowledge, skillful knowledge, tactic knowledge and emotional knowledge. This paper has also analyzed the framework of these textbooks from the organization of the contents. As for the showing of the content, the paper has analyzed it from the following five aspects including column, illustration and tabulation, exercise, examples and experiments.The fifth part is the conclusions and suggestions. On the basis of analyzing these textbooks completely, the paper summarizes the characteristics of the three editions respectively, and proposes three suggestions on the textbook compiling: (1)The teaching must be comply with the curriculum standard and make proper use of the content of textbook;⑵Developing effective teaching activity and research;⑶combining those columns with similar functions in textbooks.
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