GMAT 逻辑分析题 (5)

放肆的小狂可

Nothing special here. If you say something is good or bad, you are making a value judgement. That's it.

-- by 会员 sdcar2010 (2011/8/20 10:30:56)

sdcar2010，有个问题请教，关于这道题想了挺久依旧不得其法，请允许我用中文表述～
逻辑链跟您写的一样，没什么疑问
Conclusion: The intentions of CDer’s cannot be more bad than good.  This is a value judgement.
Evidence: The above conclusion is built on an argument that if we believe otherwise, i.e., if we believe that the intentions are more bad than good, then the consequence of such a belief would be very negative.  Hence, this deleterious belief cannot be true.
我觉得这道题使用的逻辑方法有点类似“反证法”
要证明的是good intentions > bad ones
argument逻辑链如下
IF bad intentions>good ones反证
THEN stoping trusting each other
IF we stop trusting each other
THEN  no on-line community, ChaseDream.com included, can survive
但是现在ChaseDream.com survive，所以最开始的假设IF bad intentions>good ones就是错误的，于是就证明了good intentions > bad ones
暂且不管结论在常识方面正确与否，但是我感觉似乎逻辑链是没有问题的（这里我跟前面Kevin的意见不一致，我觉得并不是像Kevin所说的not A→B推出A→not B导致错误，这里很好的运用了逆否命题，即非A→B如果正确，那么非B→A也是正确的——A为good intentions > bad ones，非A为bad intentions>good ones；B为  no on-line community, ChaseDream.com included, can survive，非B为ChaseDream.com survive）
所以我感觉整个命题似乎在逻辑上没有漏洞。。。
请问我的分析在哪里出问题了？谢谢

-- by 会员 courtdancer (2011/9/29 23:22:39)

I also use this kind of logic chain to solve this question. Personally, ur problem is here:"IF bad intentions>good ones反证
THEN stoping trusting each other". NOTICE: the author assumes that if bad>good, then no trusting. However, as we all know, even though the bad<good, there is still some bads, which lead to some untrusting. So that's the author's flaw to assume that the true believe always be true.

monalisa0421

看了好久才看懂呢。。。学习了！！

nobody910

请问SDCAR，这句话在argument中是什么作用？THX！

However, no on-line community, ChaseDream.com included, can survive without mutual trust among its members.

sdcar2010

I believe it is a premise.

请问SDCAR，这句话在argument中是什么作用？THX！

However, no on-line community, ChaseDream.com included, can survive without mutual trust among its members.

-- by 会员 nobody910 (2012/2/5 16:10:22)

单调唱

这道题理解了好一会儿~~学习了~！

yaomincui

Thanks a lot. I think I should analyze the passage more carefully.
I try to read the English newspaper once a day, but I find myself cannot understand the passage very well. After reading, I will spend much time to check the sentences and words I do not know in the dictionary. It takes me a lot of time.
Help! Am I on the right way to improve my reading?

DQStephanie

想了半天还是没怎么懂啊
原文作者是想通过chasedream.com still survive --> people don't stop trusting each other --> more good than bad.
看大神分析说：even if more good than bad, there will still be some bad consequences.
但原文里表达的意思是no bad consequences (since online community still survive) so more good than bad. 感觉和上面没有什么关系诶。。。
想知道我的逻辑哪里错了。

livebelieve

能不能用中文讲解下。。。。。。。

livebelieve

那个however后面那句话真的不知道在这题有什么作用。全句的意思是，人们在CD上上传答案的目的不能恶意多于善意。否则，人们就不能继续相信CD。CD的存在需要相互信任为基础。然后楼主问哪个选项对结论有weaken。A的意思是 ：信任可能会导致悲剧（ true belief就是trust的意思）


W HAT THE f*

livebelieve

这种就是要找前提假设的题目，估计是GMAT里最难的。。。。因为它只给了因果推理过程给你，你要在因里面找前提