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【题目】 2019年2月5日,科幻电影《流浪地球》在我国内地正式上映。《流浪地球》讲述了未来太阳即将毁灭,人类开启“流浪地球”计划,与地球一起逃离太阳系,寻找新家园的故事。读材料,完成下面小题。

1《流浪地球》开始在我国内地上映时,济宁市的昼夜长短情况是( )

A.昼长夜短B.昼短夜长C.昼夜等长D.出现极昼

2要实现地球“流浪”,首先要停止地球自身的旋转运动,即停止( )

A.地球自转﹣﹣围绕地轴运动B.地球公转﹣﹣围绕地轴运动

C.地球自转﹣﹣围绕太阳运动D.地球公转﹣﹣围绕太阳运动

【答案】

1B

2A

【解析】

125日地球位于公转轨道上的冬至日与春分日之间,此时太阳直射点由南回归线向赤道移动,山东省济宁市昼短夜长,且昼渐长,夜渐短。故选B

2】地球的自转是地球绕着地轴不停地旋转,自转中心是地轴;自转一周是一天;地球的公转是地球绕着太阳不停地旋转,地球公转中心是太阳;故选项A正确,符合题意。故选A

该题考查地球的运动及昼夜长短的变化,分析解答即可。

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