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【题目】阅读下列图文资料,回答问题。

材料一 现阶段,我国人口再生产类型实现了由高出生、低死亡、高增长的传统型向低出生、低死亡、低增长的现代型的历史性转变。

材料二 据国家卫生计生委统计数据显示,2013年60岁及以上老年人口达到2亿,本世纪30年代中期将达到4亿,占总人口的比例将从目前的1/7提高到1/4;劳动年龄人口开始减少,2012年比上年减少345万人,预计2023年以后,每年平均将减少约800万人。

材料三 2013年11月,党的十八届三中全会《决定》明确提出了单独两孩政策——一方为独生子女的夫妇可生育两个孩子的政策。这是新时期我国人口政策的重大调整完善,备受社会关注。

(1)现阶段,我国人口自然增长率较低,为什么我国每年新增的人口数量依然较大?

(2)现阶段,我国人口再生产类型实现了历史性转变,使得“世界70亿人口日”的到来推迟了5年。这一转变得益于

(3)结合材料二回答:人口增长过慢,会给我国社会经济发展带来哪些问题?

【答案】(1)答:我国人口基数大。

(2)我国把计划生育作为一项基本国策。

(3) 人口老龄化严重,社会养老负担加重;导致劳动力数量不足,影响社会可持续发展。

【解析】(1)现阶段,我国人口自然增长率较低,但由于人口基数大,每年新增的人口依然较大。

(2)现阶段,我国人口再生产类型实现了历史性转变,使得“世界70亿人口日”的到来推迟了5年,这一转变得益于我国上个世纪70年代开始实行了计划生育政策。

(3)人口增长过慢,会造成人口老龄化严重,会加重社会负担,导致劳动力数量不足。

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