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1.Which of the following most logically complete the passage? A recent government study links the high rates of respiratory ailment in Groverston to airborne pollutants released by the Woodco plywood manufacturing plant there. To address the problem, the government imposed strict regulations on emissions which will go into effect in four years. Although Woodco plans to cut its emissions in half two years ahead of schedule, it is unlikely that the rate of respiratory ailments will decline before the regulations go into effect, since_ .
A.the number of facilities capable of treating respiratory ailments is not likely to increase
B.reducing emissions even further than planned would necessitate decreasing production at Woodco
C.it is difficult to make accurate, long-term predictions about emissions
D.not all respiratory ailments are caused by airborne pollutants
E.three new plywood manufacturing plants are about to go into production in Groverston
1. 找出argument & line of argument
研究表明W厂的空气污染造成G镇呼吸病多发。W厂预计2年内完成政府规定的4年减污指标。似乎G镇呼吸病发病率应该在4年内降低。
2. 分析逻辑
两个逻辑事物
A W厂减少污染
B G镇呼吸病发病率降低
找茬 - (有什么原因A推不到B,正是本题问的) 答案E说新有厂排放污染增加。其它举例,如果说发病率在污染减少下来以后需要额外5年才能降低,同样可以。
3. 答案
E 答案 - 别的厂排放污染增加
D Tricky 无关。
从A->B并不要求所有的呼吸病都由空气污染造成。假设空气污染增加呼吸病发病,引导到降低空气污染减少呼吸病发病。想要削弱必须要从这个推理中找茬。
如果按D举例量化,呼吸病60%由空气污染造成,40%其它。减少空气污染会减少那60%的发病率。目标是the rate of respiratory ailments will decline, 并不是发病率降为0. 所以D并不影响目标。
A easy 无关。治疗呼吸病和A->B无关。
B easy 无关。W厂并没计划超出减污染计划,和A->B也无关。
C 无关。是诱导质疑W厂实现减污的可行性。但是W厂预计是2年内,不算远期。
关键是找到A->B,然后集中逻辑思维在A->B来考核答案。
当你培养出大局正确的逻辑观,无疑E是个很关键的削弱/漏洞,而D不会给你那种明显感觉。有时间时候可以仔细分析D为什么不是,做题训练考试中应该追求正确的逻辑观,这样看到E时你会心里很满意信服,不一定是你想到的逻辑漏洞,但一定会给你类似的感觉。这时应该有信心的选择E, 为其它难题和SC/RC部分节省时间。也有犯错概率,但是良好的逻辑观会给你足够好的准确率。
Richard 770 逻辑答题讨论
http://forum.chasedream.com/forum.php?mod=viewthread&tid=1303467&fromuid=1294035 |
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