地理课件1-1《地球的宇宙环境》第一课时（Geography Courseware 1-1. The first lesson of the cosmic environment of the earth）.docVIP

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地理课件1-1《地球的宇宙环境》第一课时（Geography Courseware 1-1. The first lesson of the cosmic environment of the earth）.doc

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地理课件1-1《地球的宇宙环境》第一课时（Geography Courseware 1-1. The first lesson of the cosmic environment of the earth）

地理课件1-1《地球的宇宙环境》第一课时（Geography Courseware 1-1. The first lesson of the cosmic environment of the earth） This article is contributed by clingling520 Ppt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. Chapter 1 planet Earth Chapter 1: this chapter is the first chapter of the obligatory module, which is to familiarize students with the cosmic environment in which the earth is located. For this purpose, in accordance with this chapter from small to big, from far to near the arrangement of teaching content, the details are as follows. Section 1 the cosmic environment of the earth introduces the materiality and hierarchy of the universe, and expounds the universality and particularity of the earth. The second section the influence of the sun on the earth, through the introduction of many aspects of solar radiation and solar activity on the earth, the sun did not clarify everything without the earth, the earths environment and human survival is inseparable from the sun. The third section, the movement of the earth, introduces the characteristics of the rotation and revolution of the earth and its geographical significance, which is the key and difficult point of this chapter. The fourth section, the structure of the earth, guides us to understand the inner sphere and outer sphere of the earth, and to recognize the natural environment in the structure of the earths sphere. This chapter has been one of the key and hot topics in the college entrance examination for many years. The emphasis is on the understanding of the cosmic environment, and the difficulty is the understanding and application of the laws and effects of the earth movement. The hot spot is the expansion of the living space and the development of the universe resources. Stimulate our efforts to learn scientific and cultural knowledge, and actively explore the mysteries of the universe of interest and enthusiasm