Parland’s alligator population has been declining in recent years, primarily because of hunting. Alligators prey heavily on a species of freshwater fish that is highly valued as food by Parlanders, who had hoped that the decline in the alligator population would lead to an increase in the numbers of these fish available for human consumption. Yet the population of this fish species has also declined, even though the annual number caught for human consumption has not increased.
Which of the following, if true, most helps to explain the decline in the population of the fish species?
A. The decline in the alligator population has meant that fishers can work in some parts of lakes and rivers that were formerly too dangerous.
B. Over the last few years, Parland’s commercial fishing enterprises have increased the number of fishing boats they use.
C. Many Parlanders who hunt alligators do so because of the high market price of alligator skins, not because of the threat alligators pose to the fish population.
D. During Parland’s dry season, holes dug by alligators remain filled with water long enough to provide a safe place for the eggs of this fish species to hatch.
E. In several neighboring countries through which Parland’s rivers also flow, alligators are at risk of extinction as a result of extensive hunting.
这道题感觉没一个选项对的, D怎么解释原文啊? 难道它里面的this fish species 指的就是alligator???也就是说alligator可以复活?!
这道题感觉没一个选项对的, D怎么解释原文啊? 难道它里面的this fish species 指的就是alligator???也就是说alligator可以复活?!
楼主从哪里找的这个题目? 好像有点怪异..如果用排除法, 我选择D, 比较方便也比较快...
如果正向分析, 我认为推理是这样的,
文章说, 1. 鳄鱼减少, 2. 鳄鱼吃了很多鱼
结论是, 鱼也减少
问什么解决矛盾
D选项说, 在旱季, 鳄鱼挖的洞能有足够的水, 能给鱼提供一个安全的孵化环境
如果鳄鱼减少, 推出洞少, 推出孵化环境减少, 最后推出鱼少...
基本就是这么一个思路
谢谢指点.
这题是新排版的24套题里的最有一套里的一道...
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |