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  3. With all the troubles that humanity faces, why should we care about the condition of living nature? Homo sapiens is species conf

With all the troubles that humanity faces, why should we care about the condition of living nature? Homo sapiens is species conf

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问题     With all the troubles that humanity faces, why should we care about the
condition of living nature? Homo sapiens is species confined to an extreme- 【M1】______
ly small niche. Truly, our minds soar out to the edges of the universe and 【M2】______
contract inward to subatomic particles—the two extremes encompassing 30
powers often in space. In respect, our intellects are godlike. But, let’s face it, 【M3】______
our bodies stay trapped inside of a proportionately microscopic envelope of 【M4】______
physical constraints. Earth provides a self-regulating bubble that sustains us
indefinitely without any thought or contrivance of our own. This protective
shield is the biosphere, the totality of life, creator of all air, cleanser of all
water, manager of all soil—though is itself a fragile membrane that barely 【M5】______
clings to the face of the planet. We depend upon its razor-thin health for ev
ery moment of our lives. We belong in the biosphere, we were born here like 【M6】______
species, we are closely suited on its exacting conditions—and not all condi- 【M7】______
tions, either, but just that in a few of the climatic regimes that exist upon 【M8】______
some of the lands. Environmental damage can be denned as any change that 【M9】______
alters our surroundings in a direction contradictory to humanity’s inborn 【M10】______
physical and emotional needs. We must be careful with the environment upon
which our lives depend.
【M2】
选项
答案Truly — True
解析 Truly作连接性状语时，意思是“的确，真的”，而此处需要的是表示让步的“同然，诚然”，跟下文的But，let’s face it．．．呼应，true才能表达这个意思。
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