4.二十四節氣

　　中國古代的先民們，根據太陽在黃道（即地球繞太陽公轉的軌道）上的位置，將一年均分為二十四個等分，并分別賦予具有特定含義的專有名稱，如春分、清明等，這便是二十四節氣。二十四節氣以黃河流域氣候為背景，把自然季節現象與農事活動的相互聯系作為內容列入歷法，用以指導農業生產。它是中國古代先民們發明的一種獨特而偉大的歷法。

　　The 24 Solar Terms The ancient Chinese divideda year into 24 equal segments according to the positions of the sun on theecliptic. Names were given with special connotations for these segments; such asvernal equinox (occurs on March 20 or 21) and pure brightness (occurs on April4, 5, or 6); and hence they are called the 24 Solar Terms. Originating from theReaches of the Yellow River, the 24 Solar Terms are basically

　　a calendar to govern agricultural arrangementswhich takes into account the changes in climate and practical agriculturalneeds. The 24 Solar Terms are considered a great and unique creation of theancient Chinese.

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