[题目]下表为三地连续两日日出与日落时刻(北京时间)表.据此回答各题.地点时间日出日落日出日落①9:0023:008:5823:02②7:1918:417:2018:40③5:4018:485:3918:49[1]A. ①②③ B. ①③② C. ②①③ D. ③①②[2]A. 太阳直射点位于南半球且向北移B. 地球公转速度逐渐加快C. 北极圈内极昼的范围逐渐扩大D. 各地昼夜长� 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】下表为三地连续两日日出与日落时刻(北京时间)表。据此回答各题。

地点	时间
	日出	日落	日出	日落
①	9：00	23：00	8：58	23：02
②	7：19	18：41	7：20	18：40
③	5：40	18：48	5：39	18：49

【1】

A. ①②③ B. ①③② C. ②①③ D. ③①②

【2】

A. 太阳直射点位于南半球且向北移

B. 地球公转速度逐渐加快

C. 北极圈内极昼的范围逐渐扩大

D. 各地昼夜长短相差最小

【3】

A. 0 B. C. D.

【答案】

【1】B

【2】C

【3】A

【解析】试题分析：

【1】根据日出、日落时间计算出①②③三地在当日的昼长分别为14小时、11小时22分、13小时8分，在次日的昼长分别为14小时4分、11小时20分、13小时10分。根据纬度与昼夜长短变化的关系，纬度越高昼夜长短差距越大，可以判断，三地按纬度由高到低排列是①③②，B对。

【2】若③地为北京，③地在当日的昼长为13小时8分，次日昼长13小时10分，北京昼长夜短，且昼变长，说明太阳直射在北半球，A错。且太阳直射点向北移，地球向远日点移动，地球公转速度逐渐减慢，B错。北极圈内极昼的范围逐渐扩大，C对。此时太阳没有直射赤道，各地昼夜长短相差不是最小，D错。

【3】北京时间2012年12月21日19：18，北半球迎来冬至。根据东边的时刻比西边早，东12区是最早进入新一天的地区。此刻，东12区的日期为2012年12月21日23:18分，2012年12月22日的地区占全球面积的 0，A对。

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