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鲁教版高中地理新教材,在试用中,发现了若干值与得与同仁商讨的问题。1.P8,表1-1-1,9大行星主要物理性质比较,“天王星自转周期:逆32小时54分”——目前天王星是否逆向自转尚存在争议。老教材认为,金星是九大行星中惟一逆向自转的行星,编者此处改动似乎有不同的理由。2.P14,“……地球公转周期为一年,天文学上所说的回归年长365日5时48分46秒”——地球公转周期为一个恒星年,长365日6时9分10秒,此处不说恒星年却讲到回归年,容易引起歧义,使学生误认为回归年是地球公转的周期。3.P22,图1-4-7,根据太阳的东升西落辨别方向(北纬40°地区)——根据正午太阳高度角的计算公式,不难得出结论:冬至日:90°-(40°+23°26′)=26°
In the trial version of the Geography Textbook for Senior High School of Shandong University, a number of problems worth discussing with colleagues were found. 1.P8, Table 1-1-1,9 Comparison of major physical properties of major planets, “Uranus rotation period: Inverse 32 hours 54 minutes” - Whether or not Uranus is rotating in the opposite direction is still controversial. Old textbooks believe that Venus is the only planet in the nine planets to rotate in the opposite direction, and the editors seem to have different reasons for the changes here. 2.P14, “...... Earth revolution cycle of one year, astronomy said the return of the elderly 365 days 5:48:46” - Earth revolution cycle for a stellar year, 365 days long 6: 9 For 10 seconds, not talking about the year of the stellar year but speaking of the year of reunification, it is easy to cause ambiguity. Students mistakenly believe that the year of reversion is the cycle of revolution on Earth. 3.P22, Figure 1-4-7, according to the sun’s east-west direction (40 ° N) - According to the calculation formula of the midday sun height angle, it is easy to conclude that the winter solstice day: 90 ° - (40 ° + 23 ° 26 ’) = 26 °