2. 职称英语
  3. [img]2016m3x/ct_eyyjsbz2013j_eyyjsbcloze_0089_20163[/img] Many animals which

[img]2016m3x/ct_eyyjsbz2013j_eyyjsbcloze_0089_20163[/img] Many animals which

游客2023-10-14  48
问题
    Many animals which inhabited the earth in bygone periods have entirely【C1】(appear), leaving not even a modern representative of their race. Others, no doubt, were known to prehistoric peoples, concerning which no record has come down to us. But within the period of【C2】rec______observation, many animals have lived and died out: various, causes contributing to their【C3】(exterminate), not least among these being in the presence of mankind. Man reconstructs the face of the earth to suit his needs: he cuts down【C4】f______, plows or burns over prairie lands, changes the course of rivers, drains the swamps, and thus destroys the natural【C5】en______of many of nature’s wild children. Then, too, he destroys creature directly: he kills them for food, for clothing, or for other utilitarian【C6】: he hunts them because he fears them, as dangerous foes to himself, or to his【C7】agr______pursuits: he destroys them for sport: and finally he draws them from feral conditions by【C8】(domestic). Not only thus does man directly injure by exterminating influences,【C9】 his coming accompanied by exterminating influences, kills out certain other creatures. These, when man has destroyed their natural prey, practically die of starvation before they can【C10】ad______themselves to changed conditions. Then the domestic dogs, cats, etc. help on the work of slaughter in certain ways, by preying upon wild life. [br] 【C1】
选项
答案 disappeared
解析 (句意：有许多过去曾生活在地球上的动物都完全消失了。此处需填动词的完成时态。)
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