On Pacific islands, a newly arrived gecko species, the house gecko, is displacing the previously established mourning gecko in urban areas, but populations of the two species are more stable in rural areas far from human settlement. The house gecko does not attack the mourning gecko, but in areas where insects congregate it prevents the mourning gecko from feeding on them.
Which of the following contributes most to an explanation of the difference between gecko populations in urban and rural areas?
(A) In urban areas, geckos are valued because they eat so many insects.
(B) Geckos defend territories against other members of the same species.
(C) House geckos that arrive on islands are carried there in boats and planes.
(D) In places where there are lighted buildings, insects tend to gather around the light.
(E) Mourning geckos are all females and reproduce asexually, but house geckos reproduce sexually.
Ans: D
我完全搞不懂
为什么D 可以解释HG 和
MG 的差异
(D) 里描述
insects 都
gather around the light 但文章里没半个字题到
MG 和light 的关西阿??
解释下题目意思。岛上新引入一种壁虎（HG），使已在城区长期生活的MG被逐渐取代。但在远离人群的乡下，两种壁虎数量保持稳定。已知HG不攻击MG，但在昆虫聚集的地方HG会让MG吃不到昆虫，那就是导致MG饿死，所以数量减少。
看看D，In places where there are lighted buildings, insects tend to gather around the light
在有亮光的建筑物的地方，昆虫往往围绕光线聚集。于是乎根据题目里的信息，昆虫聚集，HG就让MG吃不到昆虫,MG饿死，数量减少。因为城市里才有有电灯的建筑，而in rural areas far from human settlement人迹罕至，没有光线，就不会出现上述情况，所以整个逻辑就完整了。
我觉得判断无关选项不是要判断选项里有没有出现题目里的主要信息，而是看跟题目的逻辑是否占边。
我用消去法 原本也都用 還原找對應字
後來發現 AT邏輯隱含的 "弦外之音" 很多是答案對不到問題的 所以[總結]真的很難做
农村和城市的区别：一个黑灯瞎火，一个灯火辉煌。想想也就这个答案D靠谱啦。
(C) House geckos that arrive on islands are carried there in boats and planes哈哈，真佩服出题目的人，能想出这么离谱的选项，本年度G佳创意奖。
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