[讨论] 一道 GWD CR ，答案是D吗

bisujiangkai

T-9-Q4
            

In the years following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent. In contrast, in the year prior to the tax increase, sales had fallen one percent. The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.

The argument above requires which of the following assumptions?

A.    During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase.

B.    The one percent fall in cigarette sales in the year prior to tax increases was due to a smaller tax increase.

C.    The pretax price of a pack of cigarettes gradually decreased throughout the year before and the year after the tax increase.

D.    For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been the previous year.

E.     As the after-tax price of a pack of cigarettes rises, the pretax price also rises.

这个题为什么 选D 而不选A 呢？

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bisujiangkai

请NN 解答

shengxuf

不是nn，试着回答。

key word is "after-tax price" in the arguement. 我看到做假设题是是把不确定性项目置反，然后看能不能weaken改argument，如果选一，置反了以后就是pretax price of cigar increase the same for these two years，这个有加强作用。如果d，就是pretax after increase costs 8 cents lower than last year，但问题是saels drop due to after-tax price increase.这样的话，d有削弱作用。

我跟2道吧，assumption题和weaken，感觉assumption有时可以出的很tricky的。

GWD-8-Q38:

Unless tiger hunting decreases, tigers will soon be extinct in the wild. The countries in which the tigers’ habitats are located are currently debating joint legislation that would ban tiger hunting. Thus, if these countries can successfully enforce this legislation, the survival of tigers in the wild will be ensured.

The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

A.      assumes without sufficient warrant that a ban on tiger hunting could be successfully enforced

B.      considers the effects of hunting on tigers without also considering the effects of hunting on other endangered animal species

C.      fails to take into account how often tiger hunters are unsuccessful in their attempts to kill tigers

D.      neglects to consider the results of governmental attempts in the past to limit tiger hunting

E.       takes the removal of an impediment to the tigers’ survival as a guarantee of their survival

T-3-Q21.

Driving the steep road to the mountaintop Inca ruins of Machu Picchu is potentially dangerous and hiking there is difficult. Now the Peruvian government is installing a cable car that will make access much easier, and hence results in a large increase in tourisms. However, since the presence of large numbers of tourists tends to accelerate the deterioration of a site, installation of a cable car is certain to result in harm to the ruins.

Which of the following, if true, most seriously calls into question the argument?

A.      The daily number of tourists that are expected to take the cable car to Machu Picchu is smaller than the original resident

B.      The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.

C.      Machu Picchu is already one of the most popular tourist sites in Peru

D.      Natural weathering will continue to be a more significant cause of the deterioration of Machu Picchu than tourist traffic

E.       The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.

[此贴子已经被作者于2009/10/26 20:47:39编辑过]

xz328

GWD-8-Q38:

Unless tiger hunting decreases, tigers will soon be extinct in the wild. The countries in which the tigers’ habitats are located are currently debating joint legislation that would ban tiger hunting. Thus, if these countries can successfully enforce this legislation, the survival of tigers in the wild will be ensured.

The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

A.      assumes without sufficient warrant that a ban on tiger hunting could be successfully enforced

B.      considers the effects of hunting on tigers without also considering the effects of hunting on other endangered animal species

C.      fails to take into account how often tiger hunters are unsuccessful in their attempts to kill tigers

D.      neglects to consider the results of governmental attempts in the past to limit tiger hunting

E.       takes the removal of an impediment to the tigers’ survival as a guarantee of their survival

这道题A 为什么不对啊~ 虽然我知道E是正确答案

shengxuf

我特地拿上面我列的2道题做比较，因为一个assumption，一个weaken，但是答案的思路是2个方向，你问的这个就是从根部找原因，我在想是不是assumption题一般都是如果是证明主题有问题的答案优先？然后后面那个马丘比丘的weaken题，其实你看D，如果是问assumption，是不是就该是这个选项了？

欢迎大家讨论。我觉得把逻辑有代表意义的题总结下对考试很有好处。

bisujiangkai

哦~  谢谢你的解答，我还要再仔细想想。 以上两题的答案是 都是 E ,right?