gwd-8-19

greatvampirer

Certain politicians in the country of Birangi argue that a 50 percent tax on new

automobiles would halt the rapid increase of automobiles on Birangi’s roads and thereby

slow the deterioration of Birangi’s air quality. Although most experts agree that such a

tax would result in fewer Birangians buying new vehicles and gradually reduce the

number of automobiles on Birangi’s roads, they contend that it would have little impact

on Birangi’s air-quality problem.

Which of the following, if true in Birangi, would most strongly support the experts’

contention about the effect of the proposed automobile tax on Birangi’s air-quality

problem?

A. Automobile emissions are the largest single source of air pollution.

B. Some of the proceeds from the new tax would go toward expanding the

nonpolluting commuter rail system.

C. Currently, the sales tax on new tax on new automobiles is considerably lower than

50 percent.

D. Automobiles become less fuel efficient and therefore contribute more to air

pollution as they age.

E. The scrapping of automobiles causes insignificant amounts of air pollution.


答案是D,我选E

因为“ gradually reduce the number of automobiles on Birangi’s roads”
所以即使D对也不能得出结论
E很好的strengthen了结论，试想如果Birangi平均每一千个人只有一辆车，而平均每100个人就有一家有很多污染的工厂

请NN门确认，谢谢

autumnjin

E的意思是车的刮削物引起的空气污染可以忽略不计，敲破脑袋也想不出和原文有何关系。

greatvampirer

Thanks! I thought the meaning of "scapping" as "the discarded (gas etc.)" at the beginning.

sinadragon

 

QUOTE:

刮削物

刮削物指什么呢？

我觉得是废料，拆下来的废铁什么的

cherrywds

E的意思是说：报废汽车造成的污染很小。所以答案肯定不是E。应该是D。D是说汽车用的油更多了（效率低了），造成污染当然也就更大了。

chenmorning

文中，专家认为，高额的汽车税可以是购买新车的数量下降，但是不会使空气污染情况改变。问哪一个加强了专家的观点？

我原先是选E的，把scrapping看成了汽车的排放物，由于汽车排放物对空气污染的影响很小，所以即使由于高额的汽车税减少了汽车的总数量，也对改进空气污染的情况没有促进作用。也就是有可能有其他原因造成城里空气污染严重。

但是仔细想想D似乎也有道理。D说当汽车使用年代越久，汽车燃料的效率下降，因此对空气污染更多。由于高税收只能对新买的汽车产生阻碍作用，相对老车，新车的污染相对较小，这样，减少新车对空气污染的改进也没有太大的作用，也支持了专家的论断。

矛盾中……

请大牛指点

yaoyuemogui

我开始也是选E，但仔细想想，D理解是没有疑问的，肯定是support, 但对E scrap的理解，大家是有分歧的，因此，最终还是支持D.

taohuaxianzi

支持D，scrapping 没有“废物，废料”的意思，就算在俚语里有这样的意思，gmat 也不会考的