大全-C-14. Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A? 答案是C
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.


大全-B-17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronald’s statement to mean that 如果按照RONALD的看法,就是B,答案就是B，很困惑。。。。
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months

portiapw,我也是下个星期考.25号.........我就复习了1个月就赶鸭子上架了,好多问题还没明白,尤其是语法....之前看的全忘记了,跟你讨论下啊,我大全还有30多题目没明白呢~~~~我qq:231015876

[ 本帖最后由 sd3195069 于 2008-3-20 15:27 编辑 ]

先说第二题吧，Ronald那句话用简单逻辑关系表示就是not A unless B，即非B推出非A，逆否命题就是A推出B，也就是说Ronald的意思是如果housing prices increase了，那么interest rates drop significantly。或者这么理解，R认为利率不可能降，所以房价不会涨。逆否命题是：如果房价涨了，那么利率肯定降了。
这个建议楼主去看一下新东方网络课堂的逻辑部分，是费允杰讲的，看第一课就可以，他把那些充分、必要的讲了一下，什么A推B，B推A的，时间比较短了，建议楼主稍微理解一下然后背下来。

第一道题又没有NN帮一下，我也不大明白

这个第一题怎么说呢，他实际是一个用重复结论的方式来加强论点的论证，同时还否定了他因的存在。
原题：Dr. A说 vaccine 不好，管你什么他因论证，不好就是不好，因为 vaccine 不好，所以你的他因都不成立。就是用被论证物自身的长处来否定其他驳斥或是加强自身。按照这种思路来看4个选项（我只翻译主流）——
a. 三个病人用了 vaccine 受了伤（他因），所以vaccine 不安全——应改为：因为 vaccine 本身有什么问题，所以 vaccine 不安全
b. Jerrold Jersey 推荐牛奶，我不信任 Jerrold Jersey（他因） ，所以我不信任他推荐的牛奶——应改为：因为这种牛奶本身有什么问题，所以我不信任这种牛奶
C.因为Wingzz tennis balls 本身效率比其他要好，所以Wingzz tennis balls 好
D.因为Doctors推荐Vim Vitamins（他因），所以Vim Vitamins好——应改为：因为Vim Vitamins本身有什么优点，所以Vim Vitamins好
E.因为这所学校的学生GMAT成绩都比一般学生高20%（他因），所以Sheila Lee的GMAT成绩都比一般学生高20%——应改为：因为Sheila Lee个人的GMAT成绩好，所以所以Sheila Lee的GMAT成绩都比一般学生高20%


我分析逻辑就是写出自己的想法，真得很不理论，楼主参考一下吧。


个人意见，仅供参考，欢迎指正

[ 本帖最后由 zhangxiao07 于 2008-4-2 20:12 编辑 ]

第一题 Dr. A 是典型的不讲理的人，只有 assertion，没有支持，也不信别人提出的证据，因为与自己先入为主的概念冲突。C 也是这样的，那里只是一个 assertion，没有任何支持。

楼上是不是理工科出身，感觉讲题真是很精辟

哈哈，曾经是数学科班的。