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  3. The science of wildlife management is actually quite new. It is the third maj

The science of wildlife management is actually quite new. It is the third maj

游客2023-12-18  23
问题    The science of wildlife management is actually quite new. It is the third major phase of the original conservation movement. The first phase involved the preservation of wildlife through laws and hunting regulations. This phase was a reaction against the terrible destruction of many wild creatures. The second phase involved the control of certain birds and animals that were preying on other wildlife and causing their decline.
   However, the first two phases of the conservation movement had serious limitations. The new laws allowed certain animals to increase so much that they actually "ate up" their habitat. Many of them starved to death because the land simply could not provide for them all. Something had to be done. This is how careful wildlife management came into being.
   One of the chief concerns of wildlife management is the protection and improvement of the natural habitat so that animals have enough food and water to survive. Wildlife management involves care of the soil to produce good vegetation. It involves care of plants and bushes, not only as a source of food, but also as protection. Animals needs cover to hide from their natural enemies and to raise their young safely.
   Just as crops are harvested, wildlife too must sometimes be "harvested". By allowing limited hunting and fishing, good management can control certain species that threaten to overpopulate their habitat.
   Another major part of the wildlife management is the increasing of certain species by artificial means. Some creatures, like the whooping crane, were brought back from the edge of extinction in this way. In order to save these species, members of wildlife teams have reared the young in the safety of research stations. [br] The main idea of the second paragraph is that______.
选项 A、the first two phases of the wildlife conservation movement failed
B、the new laws made certain animals increase too rapidly
C、there was not enough room for wild creatures to increase
D、the excessive growth of certain animals caused their starvation
答案 D
解析 第二段讲了前两个阶段的局限性，由于某些动物的过度繁殖，引起动物数量的剧增，并最终导致大批动物因饥饿而死，从内容来看，第二段只讲了前两个阶段的“limitations”，而没说运动的失败，所以[A]不对。而[B]和[C]只是第二段内容的一个方面，概括不了中心思想。只有[D]是最全面的。
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