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等值线包括等高线、等温线、等压线、等盐度线、等年太阳辐射量线、等太阳高度线,等潜水位线、等深线、等震线、等年降水量线等,而初中阶段主要有等高线、等温线、等年降水量线等它们历来为中考的重点和难点,较为巧合的是这些知识点都出现在七年级上学期。如何使七年级学生又快又好的掌握住等值线的判读方法,是各位教师必须面对的课题,笔者结合自己多年的教学经验及研究心得总结了一套等值线的判读方法。
Contour lines include contour lines, isotherms, isobars, salinity lines, isocene solar radiation lines, and other solar elevation lines, such as submersible bit lines, isobaths, isoseismic lines, isochronal precipitation lines Etc., while the junior high school stages mainly include contour lines, isotherms, annual precipitation lines, etc. They have always been the key points and difficulties in the senior high school entrance examination. The more coincidental point is that these knowledge points appear in the seventh grade last semester. How to make the seventh grade students master the fast and good method of interpreting isoline is the subject that every teacher must face. The author summed up a set of interpretation method of the contour line based on his years of teaching experience and research experience.