题目内容

【题目】中新网北京7月4日电连日来,南方遭遇强降雨侵袭,安徽、湖北等省份出现严重洪涝灾情备受全国关注。今年入汛以来,全国已有1192县遭受洪涝灾害,因灾死亡186人。据此结合所学知识回答问题。

【1】造成我国水旱灾害频繁的主要原因是

A夏季风活动不稳定

B.冬季风活动强烈

C.南北跨纬度大

D.地形复杂多样

【2】下列属于洪涝灾害多发地区的是

A江淮地区

B.黄河中下游地区

C.西北内陆

D.青藏高原

【答案】

【1】A

【2】A

【解析】

试题分析:

【1】我国的气候特征之一是季风气候显著,我国夏季受夏季风的影响,夏季风从海洋上吹来,是给我国带来降水的主要因素。夏季风强,降水多,夏季风弱,降水少,所以夏季风的不稳定是造成旱涝灾害的主要原因。

【2】我国是自然灾害频繁的国家,江淮地区主要的灾害是洪濑灾害,黄河下游地区主要的灾害是旱灾,西北地区主要是旱灾,青藏高原主要是地震等灾害。所以选A。

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