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【自学重点】宝成铁路的艰险,环境描写的衬托作用。成渝的机灵可爱,侧面描写的衬托作用。工人阶级忘我的劳动精神。【简要导析】利用十年制学校初中课本《中国地理(下册)》四十页的地图,指导学生画出宝鸡市和灵官峡的位置,并画出宝成铁路的走向。然后以“全长668.2公里,三百多处隧道,九百多座桥梁”的数据,说明宝成铁路的艰险。指导学生用“(?)”(x 表示1、2、3……)标明自然段的顺序,以便进行结构分析。然后指导
[Self-study Key Point] The difficulties and the environmental background of Baocheng Railway. Cheng Yun’s clever and cute, side set off the role of description. The working class forgets my working spirit. [Introduction] Use the 40-page map of China Geography (Part 2), a textbook for the junior high school of 10-year schools, to guide students to draw the positions of Baoji City and Lingguan Gorge, and draw the direction of the Baocheng-Chengdu Railway. Then, using the data of “668.2 kilometers in total length, more than 300 tunnels, and more than 900 bridges”, the difficulties of the Baocheng-Chengdu Railway were explained. Instruct students to use “(?)” (x means 1, 2, 3...) to indicate the order of the natural segments for structural analysis. Then guide