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【题目】读图,回答下面小题。

1甲、乙、丙三艘船沿着箭头方向同时驶向180°经线,若时速相同,则:

A. 同时到达 B. 到达的先后顺序是甲、乙、丙

C. 丙先到达 D. 到达的先后顺序是甲、丙、乙

2下列叙述正确的:

A. 甲位于乙的正南方向 B. 乙所在经线长度比丙所在的经线长度要长

C. 丙在甲的西南方向 D. 乙所在纬线与丙所在纬线相距约为2608.5千米

【答案】

1D

2D

【解析】

1若轮船的时速相同,距离180°经线较远,到达的时间越晚。读图可知,甲、乙和丙三地的纬度位置不同,纬度越低,相同経度差的纬线越长,比较甲、乙和丙三地距离180°经线的距离可知,甲、乙、丙三艘轮船到达的先后顺序是甲、丙、乙,故答案选D。

2根据在经纬网地图上,纬线指示东西方向,经线指示南北方向,读图可知,甲位于乙的正北方向丙在甲的东南方向乙所在经线长度与丙所在的经线长度相等;乙所在纬度与丙所在纬度相差23.5°,相距约为23.5×111千米=2608.5千米,故答案选D。

该题主要考查的是经纬线的特点和方向,要求学生具有较强的读图分析问题的能力。

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