Each year red-winged blackbirds stop in a certain region of Midland Province on their spring and fal...

题目信息

Each year red-winged blackbirds stop in a certain region of Midland Province on their spring and fall migrations. In the fall, they eat a significant portion of the province's sunflower crop. This year Midland farmers sought permits to set out small amounts of poisoned rice during the blackbirds' spring stop in order to reduce the fall blackbird population. Some residents voiced concern that the rice could threaten certain species of rare migratory birds. Nevertheless, the wildlife agency approved the permits.

Which of the following, if true, most helps to justify the wildlife agency's approval of the permits, given the concerns voiced by some residents?

A:In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.

B:The poison that farmers want to use does not kill birds but rather makes them incapable of producing viable eggs.

C:Since rice is not raised in Midland Province, few species of birds native to the province normally eat rice.

D:Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined.

E:The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.

参考答案及共享解析

共享解析来源为网络权威资源、GMAT高分考生等；如有疑问，欢迎在评论区提问与讨论

正确答案： A:In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.

原文说有一种鸟春秋节飞过什么地秋天时会吃什么种子为了减少它们的数量农民们就想在春天的时候用毒米杀死他们但是有人说这样会使某些珍贵鸟类死亡但是环保组织同意了农民的做法问支持组织

A这群鸟是第一批到达这地方的这选项说什么呢？是鸟的到达时间问题吗？如果这样肯定要杀了在选项是否有关时肯定是要用到原文的原文的作用：1 原文提过的类似事件有没提过 2选项的内容和原文是不是有必然联系对于1那是比较简单的客观然而2就是难题中常常用到的方法老头门一般都会特意弄出个选项如果您看选项不客观同时又不联系原文那么看这些选项时就会觉得极不像这种选项往往是老头们事先设计好如果您做题不用脑子只是字面的客观那就肯定对这种选项失去感觉其实我做此题的时候A给我的感觉不是时间问题而是鸟类的死亡问题为什么呢原文说有毒大米选项说鸟第一批来这中间是不是有种死亡数量的感觉如果您感觉不出来那这种题目就没办法了

B毒药杀不死鸟但可以让鸟无法生蛋和鸟数量感觉有点相关就先留着

C米不是本地的所以很少当地的鸟吃更是无关

D农民依然施毒后依然健康。。。

E毒药无色无味鸟儿无法查觉。。。金庸小说中的毒药

好了现在来比AB两选项在留着两个选项的时候是怎么对比的因为两个选项的区别好像不大对于数量是增加还是减少上看都差不多都像是减少的因此需要将选项带入原文考虑看看对问题的可性度是否有改变 A主要对象是先来的鸟 B说鸟无法生蛋对象是所有鸟类两者的对象不一样这无法提高任何相信度吧所以选A

此题较难但这种难题都有一个共性正确选项用简单的客观记题是无法找出正确答案的正确的答案肯定要和原文有一定的必然联系这就要求各位在平时做题时肯定要客观然后不是简单的读文章和选项而是要用脑子读和记一种选项间必然的关联度要用感觉当然现在考试的趋势是CR不像以前那么难了对于大多考题客观就足够做完这种难题既不能往后推又要客观说白了就是一种思维和感觉一种度过了这度或许就会出现无数留下的选项或者选项都被杀光

笔记