第三部分为榆树市闵家中学语文课堂文化生成性现状；

The third part is the Chinese classroom culture's present situation of the middle school in Yushu Minjia;

1951年，在长春地区的榆树市发现了哺乳动物(或者说是人骨化石)化石。

In 1951, a group of mammal fossils (or fossils of human bones) were found in Yushu City of Changchun area.

调查了吉林省榆树市黑土与玉米中的砷含量，并分析了其影响因素。

Investigation of arsenic content in black soil of Yushu city in Jilin province was carried out, and the affecting factors were analyzed.