[讨论]Q18: TTGWD11-Q40: 选D E?

GWD答案 是D.

why choose D?  既然鳄鱼洞能提供给淡水鱼的卵孵化，  为何淡水鱼的量下降了？ 想不明白。

我觉得E对. 别的地方鳄鱼更少, 淡水鱼跑鳄鱼更少的地方去了.

Q18: TTGWD11-Q40:

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.

D是说鳄鱼对卵的孵化有帮助，鳄鱼少了，所以鱼就少了

E说的是旁边国家如何如何，这种说别的国家怎样的一般都不对，因为人家又没告诉我们邻近国家和我们国家有什么关系，淡水鱼会跑到鳄鱼少的地方是自己加进去的想法，不是题目和选项给的

thank you very much!!!  understood now