高中地理课标（2017版）的颁布，是以地理学科核心素养为核心的教育改革中的最重要环节之一。课程改革的成果需课堂教学的实践才能真正落地，选修课程对于满足学生的个性化发展、培育深化其核心素养有着至关重要的意义，但由于其不纳入高考范围，也是最易被忽视的模块，“如何基于地理核心素养开展选修课程的有效教学”是教育改革实践中亟需探索问题。 本文以必修课程为基础，论证选修课程核心素养存在水平五及其表现；在章节内容的先后对比分析中确定选修课程总体上应该达到核心素养水平四、五，各个模块又有所不同：《天文学基础》在先修课程中涉及少，应注重拓展，水平不做过高要求，而《自然灾害与防治》、《环境保护》、《海洋地理》的内容在必修课程中有较多阐述，教学时应注重拓展、深化与应用，应达到核心素养水平四、五。针对地理选修课程发展不均衡、随意性大,呈现“表层化、碎片化、拼盘化”等问题，笔者为有效教学提供参考建议：1.以“拓展、应用和深化”为划分选修课程素养水平的新视角，强调学生的兴趣满足、参与度与地理学思维方式的培养。2.各模块课程素养水平应对比必修课程的相关内容的水平要求进行划分。3.核心素养始终是选修课程内容组织的关键核心。4.教学活动应创设真实情境，在同一情境有选择、有侧重的培养一个或多个核心素养，不可生搬硬套。

The promulgation of the high school geography curriculum (2017 edition) is one of the most important links in the education reform centered on Core Literacy of Geography. Only by putting it into practice can the achievement of the curriculum reform be consolidated and developed. Elective courses are of great significance to meet the individual development of students and to cultivate and deepen their Core Literacy. However, excluded in the scope of the College Entrance Examination made it the most easily overlooked module. How to carry out the Effective Teaching of elective courses based on the Core Literacy of Geography is an urgent problem to be explored in the educational reform. Based on compulsory courses, this paper demonstrates the existence of the Core Literacy Level 5 of elective courses, discusses the Level 5 and how it embodies. In the comparative analysis of the content of the chapters about Elective courses, it is determined that the elective courses should generally reach the Core Literacy of Geography level four or five, and each module is different: "The foundation of astronomy" is less involved in the preliminary courses, and it should pay attention to expanding, and the level is not so demanding. The contents of "Natural Disasters and Prevention", "Environmental Protection" and "Marine Geography" are more elaborated in the compulsory courses, Teaching should emphasize the expansion, deepening and application, should reach level four or five of the Core Literacy. For the problems of geographical elective courses, such as uneven development, serious arbitrariness, and "superficial, fragmental, and patching", there are suggestions for Effective Teaching: 1. With "expanding, applying, and deepening" as a new perspective to divide the level of elective course Core Literacy, it emphasizes the students 'interest satisfaction, participation, and the cultivation of geographical thinking methods. 2. The level of each module's curriculum literacy level should be compared with the level requirements of the relevant content of the compulsory course. 3. Core literacy has always been the key core of the organization of elective course content. 4. Teaching activities should take the real situation as the carrier, in which focused cultivation of one or more Core Literacy. The four core qualities can’t be hardened in each situation mechanically.