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标题: 不太懂的两道GWD [打印本页]

作者: 穆汐寒 时间: 2017-3-13 18:46
标题: 不太懂的两道GWD
Background information:  This year, each film submitted to the Barbizon Film Festival was submitted in one of ten categories.  For each category, there was a panel that decided which submitted films to accept.
Fact 1:  Within each category, the rate of acceptance for domestic films was the same as that for foreign films.
Fact 2:  The overall rate of acceptance of domestic films was significantly higher than that of foreign films.
In light of the background information, which of the following, if true, can account for fact 1 and fact 2 both being true of the submissions to this year’s Barbizon Film Festival?
A. In each category, the selection panel was composed of filmmakers, and some selection panels included no foreign filmmakers.
B. Significantly more domestic films than foreign films were submitted to the festival.
C. In each of the past three years, the overall acceptance rate was higher for foreign than for domestic films, an outcome that had upset some domestic filmmakers.
D. The number of films to be selected in each category was predetermined, but in no category was it required that the acceptance rate of foreign films should equal that of domestic films.
E. Most foreign films, unlike most domestic films, were submitted in categories with high prestige, but with correspondingly low rates of acceptance.

the rate of acceptance这个东西应该怎样理解？是被accept的电影和总共提名的电影的比例？
另外求解释B和E

作者: 穆汐寒 时间: 2017-3-13 18:47
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s Beach has actually increased somewhat since five years ago. Clearly, environmentalists’ prediction that the world’s Merrick population would decline as a result of the spill has proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists’ prediction?

A. The chemical spill five years ago occurred at a time when there were neither Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant decline in the population of one of the several species of sea birds that prey on Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase the Merrick sea turtle population by transferring eggs from Baker’s Beach to nearby beaches that had not been affected by the spill.

想知道正解B是怎么得出来的

作者: yaya杨 时间: 2017-3-13 20:43
第一题感觉是B，答案是哪个

作者: 穆汐寒 时间: 2017-3-13 20:56

yaya杨发表于 2017-3-13 20:43
第一题感觉是B，答案是哪个

答案给的E。。
我也选的B

作者: yaya杨 时间: 2017-3-13 21:10

穆汐寒发表于 2017-3-13 18:47
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting ground f ...

第二题把问题变形一下就是，仅仅我的理解，题目要求：选出支持环境保护者的预测的选项。
因为题干已知事实：1、化学泄露会让B海滩乌龟蛋无法孵化（也就是说肯定数量会下降滴）。2、但是回来下蛋的母乌龟居然变多了。
所以就应该想，问什么保护者会这么预测，他的预测会与2矛盾吗？
所以，找原因解释2并且不会与环境保护学家的预测矛盾就好了。B刚好解释了。
其他选择
A：与题干事实矛盾
C：说普通环境下乌龟存活率就低，并没有解释2
D：乌龟蛋的天敌少了，蛋多了，也没解释2
E：也没解释2

作者: yaya杨 时间: 2017-3-13 21:33

穆汐寒发表于 2017-3-13 20:56
答案给的E。。
我也选的B

知道了，就是说，国内和国外电影的接受率（其实就是电影在电影节的通过率啦）在每一个组是一样的，也就是每一个组的评委打分给国内国外是一样的。
已知：接收率P国外=P国内（每组），但不同组的P不同
（E说了most foreign films）被送到低通过率的组。
如果低通过率组的接收率是P1，高通过的接收率是P2.
那么，下式表示，国外国内电影接收比率
（p1*外国电影数）*组数/外国电影总数<p2*国内电影数*组数/国内电影总数。
B选项和“率”无关，基数大小与百分比无关

作者: lisiberry 时间: 2017-3-14 07:45
明白了，今天好困，明天要是你还没明白的话再来解答。不过估计你看yaya的解释就能明白了。

作者: 穆汐寒 时间: 2017-3-14 11:03

yaya杨发表于 2017-3-13 21:33
知道了，就是说，国内和国外电影的接受率（其实就是电影在电影节的通过率啦）在每一个组是一样的，也就是 ...

明白了，谢谢

作者: 穆汐寒 时间: 2017-3-14 11:06

yaya杨发表于 2017-3-13 21:10
第二题把问题变形一下就是，仅仅我的理解，题目要求：选出支持环境保护者的预测的选项。
因为题干已知事 ...

为什么B可以解释？

作者: yaya杨 时间: 2017-3-14 14:18

穆汐寒发表于 2017-3-14 11:06
为什么B可以解释？

因为母乌龟10岁才会回到，并不知道5年前的泄露污染会让自己的蛋孵化不出来。所以这些母乌龟依旧屁颠屁颠回来了，解释了为什么母乌龟在（冒着蛋孵化不出来的风险）却还数量增多的原因。

作者: 穆汐寒 时间: 2017-3-14 17:06

yaya杨发表于 2017-3-14 14:18
因为母乌龟10岁才会回到，并不知道5年前的泄露污染会让自己的蛋孵化不出来。所以这些母乌龟依旧屁颠屁颠 ...

明白啦，感谢！

作者: lisiberry 时间: 2017-3-14 18:14

yaya杨发表于 2017-3-14 14:18
因为母乌龟10岁才会回到，并不知道5年前的泄露污染会让自己的蛋孵化不出来。所以这些母乌龟依旧屁颠屁颠 ...

晕倒，形容的太拟人化了

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