(云南专版)2019版中考生物第3讲生物圈是人类与其他生物的共同家园习题.docx

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1第 3 讲 生物圈是人类与其他生物的共同家园选择题(共 2 小题,每小题 1.5 分,共 3 分)1.(2018湖南长沙)蓝天净土养肺,田园生活养神。为保卫蓝天,下列做法正确的是(C)A.就餐时经常使用一次性餐具B.在春节期间燃放烟花爆竹C.尽量乘坐公共交通工具出行D.露天焚烧垃圾保持环境卫生2.(2018江西)“绿水青山就是金山银山”突出保护生态环境,实现人与自然的和谐发展。下列做法不符合这一理念的是(C)A.垃圾分类回收B.低碳绿色出行C.沿河排放污染物D.禁燃烟花爆竹2答案精解精析1.C 要保卫蓝天应尽量做到低碳生活。经常使用一次性餐具,必然需要砍伐大量的树木;而燃放烟花爆竹、露天焚烧垃圾,会造成大气污染,都不利于保卫蓝天,因此 A、B、D 都错误。2.C 沿河排放污染物会污染水源,对各种水生生物的生存造成直接危害,破坏河流生态系统的平衡;由于生物圈是一个统一的整体,污染物随着江河入海,还会对海洋生态系统造成威胁,甚至威胁人类本身。

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