请教一道PREP CR!

cyt1111111 · 发表于 2015-6-10 14:06:02

Adult female rats who have never before encountered rat pups will start to show maternal behaviors after being confined with a pup for about seven days. This period can be considerably shortened by disabling the female's sense of smell or by removing the scent-producing glands of the pup.

Which of the following hypotheses best explains the contrast described above?

AThe sense of smell in adult female rats is more acute than that in rat pups.
BThe amount of scent produced by rat pups increases when they are in the presence of a female rat that did not bear them.
CFemale rats that have given birth are more affected by olfactory cues than are female rats that have never given birth.
DA female rat that has given birth shows maternal behavior toward rat pups that she did not bear more quickly than does a female rat that has never given birth.
EThe development of a female rat's maternal interest in a rat pup that she did not bear is inhibited by the odor of the pup. 在B和E中纠结。看了答案后还是有些迷惑。原文的重心是减少female的嗅觉和移开pup身上的释放气味的腺对maternal behavior 下降的影响。那原文的意思就是说female喜欢pup身上的气味吗，没有气味就没有maternal behavior，有气味就有maternal behavior。那B选项说pup在female面前会释放大量的气味，那female就很喜欢啊。为什么不对呢。对于E选项说pups的气味会抑制rat 的
maternal interest。我觉得不对啊，pups的气味应该利于maternal interest才对啊怎么会是抑制呢

cyt1111111 · 发表于 2015-6-10 14:33:11

再来一道
In many corporations, employees are being replaced by automated equipment in order to save money. However, many workers who lose their jobs to automation will need government assistance to survive, and the same corporations that are laying people off will eventually pay for that assistance through increased taxes and unemployment insurance payments.

Which of the following, if true, most strengthens the author's argument?

A
Many workers who have already lost their jobs to automation have been unable to find new jobs.  分析A选项
B
Many corporations that have failed to automate have seen their profits decline.  分析B选项
C
Taxes and unemployment insurance are also paid by corporations that are not automating.  分析C选项
D
Most of the new jobs created by automation pay less than the jobs eliminated by automation did.  分析D选项
E
The initial investment in machinery for automation is often greater than the short-term savings in labor costs.30 done  D选项为什么不对呢

benjaminsandro · 发表于 2015-6-10 19:44:36

第一题——重新仔细读一下题吧，后面理解反了。
题目里最后减少的是“展现母性行为之前时长”，也就是说更快地表现出母性行为。

第二题——题目内容跟“new jobs created by automation”无直接关系；而且就算有关也是weaken。
题目的观点是：企业自动化——企业裁员——企业省钱——企业多缴税（因为这些失业的人加重了政府负担）==>结论是出来混（企业搞自动化）还是要还（自己承担失业的后果）的。
D选项引入了无关的概念——新岗位；意思是“自动化带来的新岗位比旧岗位工资少”——是说明企业省钱了的。
而且新岗位的很多相关情况完全不确定，只知道新旧pay的对比没意义。

cyt1111111 · 发表于 2015-6-10 21:02:37

benjaminsandro 发表于 2015-6-10 19:44
第一题——重新仔细读一下题吧，后面理解反了。
题目里最后减少的是“展现母性行为之前时长”，也就是说更 ...

棒棒的，做到后面脑壳都晕晕的，都反应不过来了，过会就想明白了

benjaminsandro · 发表于 2015-6-10 22:17:21

cyt1111111 发表于 2015-6-10 21:02
棒棒的，做到后面脑壳都晕晕的，都反应不过来了，过会就想明白了

所以一定要“投机取巧，不求甚解。”
否则考试的时候加上压力，还有WRITING、IR、QUANT、RC...更晕了。

cyt1111111 · 发表于 2015-6-11 08:31:14

benjaminsandro 发表于 2015-6-10 22:17
所以一定要“投机取巧，不求甚解。”
否则考试的时候加上压力，还有WRITING、IR、QUANT、RC...更晕了。 ...

赞扬才能做到投机取巧不求甚解还能把题做对呢

cyt1111111 · 发表于 2015-6-11 08:32:49

benjaminsandro 发表于 2015-6-10 19:44
第一题——重新仔细读一下题吧，后面理解反了。
题目里最后减少的是“展现母性行为之前时长”，也就是说更 ...

意思是做题的时候不需要把每个题的潜在逻辑搞懂是么，但是要是不搞懂潜在逻辑又怎么能排除无关选项呢

benjaminsandro · 发表于 2015-6-11 14:21:51

cyt1111111 发表于 2015-6-11 08:32
意思是做题的时候不需要把每个题的潜在逻辑搞懂是么，但是要是不搞懂潜在逻辑又怎么能排除无关选项呢 ...

意思就是：很多时候从排除所悟的角度出发，比”找到正确答案“的角度，要省时省力。
题干的大体逻辑、话题通常来说还是要搞明白的。
但是对于很多题，正确答案在一眼望不到边的出口，而剩下四个选项是一眼看到底的岔路——排除了四个，你就放心的选剩下那条路就得了。

典座 · 发表于 2020-1-23 15:59:33

benjaminsandro 发表于 2015-6-11 14:21
意思就是：很多时候从排除所悟的角度出发，比”找到正确答案“的角度，要省时省力。
题干的大体逻辑、话 ...

谢谢啦。
过了5年看到发现还是很有用哈哈哈

请教一道PREP CR!

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