很纠结，十分纠结，非常纠结，纠结纠结·og的三道题，谢谢

cuican1432

我觉得作者一开始的逻辑有点问题。。。

作者为什么一开始就可以断定石头是4500年前的呢？？？？
如果断定石头的话不应该是用科学的角度来客观肯定的来断定吧？
什么同位素追踪法一类的来判断的吧。。。。。
4500-year-old stone agricultural implements were unearthed at Colha 既然作者本来就这么肯定了，那石头不就是4500 year old 么，用科学的角度讲 = =

安徽民工

123题和OG只是题干相同，选项都不一样。

sunnywooo

我觉得是，玛雅人是只有3000年前的历史。玛雅人模仿是更早种族的人（比如麻麻人，4500年前）的工具。
文物的时间肯定是没错，用碳14鉴别的，不可能会有错。

shiningsmile

Mayan pottery

This is very simple.

If D) is right, then the 4,500-year-old stone agricultural implements is the ORIGINAL object made by earlier inhabitants. This ORIGINAL object was later COPIED as Mayan stone implements of a much later period (successor culture). Therefore, the conclusion that Mayan culture started as early as 4,500 years ago was wrong.

-- by 会员 sdcar2010 (2011/7/27 10:45:59)

可是题目已经说了Moreover, the implements'
designs are strikingly different from the designs of
stone implements produced by other cultures known
to have inhabited the area in prehistoric times，不知你所说的earlier inhabitants是否包括在prehistoric times的范围内已经在题干中被排除了呢？

sdcar2010

Apparently, the 4,500-year-old stone agricultural implements are a NEW discovery. Hence they do not belong to any other KNOWN cultures, including Mayan.

shiningsmile

谢谢你的解答，我一开始就把D项当作与题干相矛盾给排除掉了，莫非the implement 是源于some unknown earlier culture?这种题好tricky啊，我有时做逻辑题是先入为主地把正确答案给排除掉了，不知sdacar在以前做逻辑时有这种现象么？感觉自己题也做得不少了，但缺乏一套行之有效的总结方法，能不能指点一下怎么总结逻辑比较好呢？

sdcar2010

做逻辑题是先入为主地把正确答案给排除掉了 is a cardinal sin.

Just take whatever is said in the passage WITHOUT adding ANY thinkings or judgement of your OWN.  That's the key to success in CR.  Just keep your innocence like a baby.  Do not try to prove your brilliance by FORSEEING the future.

Once you understand the logic of the passage, study the answer choices.  Eliminate ONLY those answer choices that you are sure are WRONG.  For either "correct" choice or "unsure" ones, just leave them as contenders.  Once you have finished analyzing all five choices, compare the contenders and pick the one that is correct among/between them.

shiningsmile

衷心感谢！

feebee2012

我觉得其实这是类比，如要削弱类比的话，就是否认两者的不一致，或者给出理由来否认两者一致的理是错误的，文章的理由是说是因为两个像似所以时间是4500，要想削弱的话就是解释这个像似的特征是表面上的，本质是不一致的。