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  3. It is important that we be mindful of the earth, the planet out of which we are born and by which we are nourished, guided, heal

It is important that we be mindful of the earth, the planet out of which we are born and by which we are nourished, guided, heal

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问题     It is important that we be mindful of the earth, the planet out of which we are born and by which we are nourished, guided, healed......the planet, however, which we have【B1】______to a considerable degree in these past two centuries of【B2】______exploitation. This exploitation has reached such【B3】______that presently it appears that some hundreds of thousands of species will be【B4】______before the end of the century.
    In our times, human shrewdness has mastered the deep【B5】______of the earth at a level far beyond the capacities of earlier peoples. We can break the mountains apart)we can drain the rivers and flood the valleys. We can turn the most luxuriant forests into throwaway paper products. We can【B6】_______ the great grass cover of the western plains and pour【B7】_______ chemicals into the soil until the soil is dead and blows away in the wind. We can pollute the air with acids, the rivers with sewage(污水)the seas with oil. We can invent computers【B8】_______ processing ten million calculations per second. And why? To increase the volume and the speed with which we move natural resources through the consumer economy to the junk pile or the waste heap. Our managerial skills are measured by the competence【B9】______in accelerating this process. If in these activities the physical features of the planet are damaged, if the environment is made inhospitable for【B10】______living species, then so be it. We are, supposedly, creating a technological wonderworld.
【B5】
选项
答案mysteries
解析 句意推断题。空格前为形容词，空格后为介词of，故空格处应填入一个名词(词组)。结合录音填入mysteries，意为“神秘，谜”。
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