【題目】讀圖,回答下面小題。

1甲、乙、丙三艘船沿著箭頭方向同時駛向180°經(jīng)線,若時速相同,則:

A. 同時到達 B. 到達的先后順序是甲、乙、丙

C. 丙先到達 D. 到達的先后順序是甲、丙、乙

2下列敘述正確的:

A. 甲位于乙的正南方向 B. 乙所在經(jīng)線長度比丙所在的經(jīng)線長度要長

C. 丙在甲的西南方向 D. 乙所在緯線與丙所在緯線相距約為2608.5千米

【答案】

1D

2D

【解析】

1若輪船的時速相同,距離180°經(jīng)線較遠,到達的時間越晚。讀圖可知,甲、乙和丙三地的緯度位置不同,緯度越低,相同経度差的緯線越長,比較甲、乙和丙三地距離180°經(jīng)線的距離可知,甲、乙、丙三艘輪船到達的先后順序是甲、丙、乙,故答案選D。

2根據(jù)在經(jīng)緯網(wǎng)地圖上,緯線指示東西方向,經(jīng)線指示南北方向,讀圖可知,甲位于乙的正北方向;丙在甲的東南方向;乙所在經(jīng)線長度與丙所在的經(jīng)線長度相等;乙所在緯度與丙所在緯度相差23.5°,相距約為23.5×111千米=2608.5千米,故答案選D。

該題主要考查的是經(jīng)緯線的特點和方向,要求學生具有較強的讀圖分析問題的能力。

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