题目内容

【题目】晚上,北京的畅畅给美国纽约的姑妈打电话说上午好。完成下面小题。

1畅畅打电话时北京是晚上,纽约是上午,造成这种时间差异的原因是

A.地球的公转B.地球的自转

C.月球公转D.地球是球体

2畅畅想知道姑妈家所在的位置,应查找的地图是

A.世界地形图B.世界气候类型分布图

C.世界人口图D.世界的国家和地区图

【答案】

1B

2D

【解析】

根据地球绕地轴不停转动,叫地球自转。地球自转的方向是自西向东,自转的周期是一天。地球自转产生的现象是昼夜交替、日月星辰东升西落和时间差异;地图是学习地理必不可少的工具。人们从地图上可以直接获得大量有用的地理信息。我们要掌握使用地图的方法,在日常生活中养成经常读图、用图和收集地图的好习惯,进行分析解答。

1地球自转产生了不同经度地方时的差异,较东边的地方比较西边的地方时刻更早。北京与纽约经度差异大,因此北京是晚上,纽约是上午。故选:B

2在日常生活中,我们应根据实际需要选择合适的地图。畅畅想知道美国纽约姑妈家所在的位置,应查找的地图是世界的国家和地区图。故选:D

本题考查了地球自转产生的时间差异及地图的选择。

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