TTGWD25-24显然是A

shshdaye

b中的becasue of doing太明显了。。。。。

raikey

顶A.

有位NN找了位美国语法老师分析http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=262509&replyID=&skin=1

另外我认为B中的which指代有歧义,可以指prices,也可以指supply and prices,
A中的it就是指efficiency,没有问题.

hf000

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顿顿的微笑

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eileenmu木

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ll_zl

支持A

B中的because of increasing supply and lowering price 与 demand will be stimulated成了一个因果关系，也就看不出高供给低价格与efficiency之间存在什么的关系。和原文意思有较大差别

原句的意思是efficiency通过increasing supply and loweing price的方式来刺激需求，并且首句的although就是想表示efficientcy在两个方面不同的作用。一方面降低收割率，一方面刺激需求。

因此从保持原文意思来说，倾向于选A

vanissa

真是太夸张了,看了这题不同的讨论帖,经过多年仍然没有定论,

想了很久,我决定还是用句意来理解,选A, 理由如下:

首先针对文法的部分,

Although improved efficiency in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting consumption.

A.      in converting harvested trees into wood products may reduce harvest
            rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting (it当主词倍受争议)

B.       in converting harvested trees into wood products may reduce harvest
            rates, demand will be stimulated because of increasing supply and
            lowering prices, which boost (because of +v-ing是ETS最讨厌的结构,以及which应该仅指代prices)

另外个人觉得A中的 , thereby boosting是很完美的结构,不存在歧义,且是ETS的偏好,所以没列为争议点

B中的because of increasing supply and lowering prices真的是看了太不开心了,怎么也没办法说它对呀!

再来,句意!句意是最高原则,来翻一下:

A: 虽然将trees转换wood的效率提升可能减少harvest rates,(但)此提升的效率(it=improved efficiency)将能藉由增加供给和降低价格来stimulate demand,因此可以boosting consumption

B: 虽然将trees转换wood的效率提升可能减少harvest rates,(但)因为增加供给和降低价格(此价格的降低可以boosting consumption),需求将能被刺激

B不太会翻,不过直觉来看which boost...不是一个很好的结构,which又不能指代increasing supply and
                    lowering prices只能指代prices呀!

所以还是选A

edmund_zh

应该是Ａ，Ｂ中

demand will be stimulated because of increasing supply and
                lowering prices

应该改成increased supply and lowered prices.

mymengming

肯定是A，B犯了全部的GMAC的忌讳

xiaoda

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