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【题目】亚马孙河流城气候湿热,森林茂密,拥有世界上面积最大的热帶雨林,产生的氧气占地球总氧量的1/3,被称为“地球之肺”:该地区人烟稀少。结合所学知识回答下列小题。

1亚马孙热带雨林被称为“地球之肺”主要是指

A. 保持水土B. 释放氧气C. 物种丰富D. 涵养水源

2亚马孙河流域入烟稀少的主要原因是

A. 气候湿热,不利于人类生存B. 地形崎岖,交通不便

C. 早涝频繁,农业落后D. 资源不足,工业欠发达

3合理开发和保护亚马孙热带雨林措施符得当的是

A. 毁林开荒,发展农业B. 采育结合,多种经营

C. 封山有林,禁止开发D. 招商引资,大力采伐

【答案】

1B

2A

3B

【解析】

1亚马孙热带雨林具有巨大的环境效益,因为能够吸收二氧化碳,释放氧气,净化空气的作用,被称为“地球之肺”。故选B。

2世界人口的分布与自然环境的关系密切,在气候温暖湿润,交通便利,地形平坦的地区,人口稠密;在气候湿热,炎热干燥、过于寒冷和地势高峻的地区人口稀少。亚马孙河流域人烟稀少的主要原因是气候湿热,不利于人类生存,故选A。

3热带雨林的开发既要考虑经济效益,又要兼顾环境效益,才能实现可持续发展。毁林开荒,发展农业、封山有林,禁止开发、招商引资,大力采伐,都不是可取的。采育结合,多种经营是可以实现可持续发展的措施。所以选B。

该题考查亚马孙热带雨林的开发和保护,分析解答即可。

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