题目内容

【题目】[选修3:旅游地理]

腾格里沙漠位于我国西北地区,为我国第四大沙漠。沙漠内部山地、沙丘、平地、湖盆交错分布,绿洲点缀其间,风光优美。沙漠徒步探险旅游是近年来兴起的一种旅游方式。

1在腾格里沙漠徒步探险旅游,一般选择在什么季节进行?请说明理由。

2说出几种在沙漠中确定方位的方法。

【答案】

1秋季;理由:春季多风沙天气;夏季酷暑;冬季严寒;秋季温度适宜;风沙天气相对较少。

2用仪器仪表如GPS、指南针、手表、手机等判定方向;白天利用日出日落方位大体判断方向;晚上利用北极星确定正北方向;利用沙丘的走向判断方向等。

【解析】

试题分析:

1考查区域自然环境特征,腾格里沙漠位于我国西北地区,气候干旱,进行探险旅游主要考虑气温和风沙的条件,选择最佳季节,应该是天气比较好,该地夏季酷暑冬季寒冷,都不适宜;春季,因离冷空气较近,风力还是蛮大,风沙天气多,故最是适宜的季节为秋季。

2沙漠中定方位可以借助先进仪器,如GPS、指南针、手表、手机等;也可以借助自然特征判断,白天看太阳,晚上看星星北极星,结合当地的盛行风向看沙丘的走向。

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