在B D E中纠结，大家帮我看看吧

bernadotte

Q15:

Brochure:  Help conserve our city’s water supply.  By converting the landscaping in your yard to a water-conserving landscape, you can greatly reduce your outdoor water use.  A water-conserving landscape is natural and attractive, and it also saves you money.



Criticism:  For most people with yards, the savings from converting to a water-conserving landscape cannot justify the expense of new landscaping, since typically the conversion would save less than twenty dollars on a homeowner’s yearly water bills.



Which of the following, if true, provides the best basis for a rebuttal of the criticism?



A.   Even homeowners whose yards do not have water-conserving landscapes can conserve water by installing water-saving devices in their homes.

B.   A conventional landscape generally requires a much greater expenditure on fertilizer and herbicide than does a water-conserving landscape.

C.   A significant proportion of the residents of the city live in buildings that do not have yards.

D.   It costs no more to put in water-conserving landscaping than it does to put in conventional landscaping.  

E.    Some homeowners use more water to maintain their yards than they use for all other purposes combined.

prayer

我认为答案是B，因为文章中讨论的是新的节水装置是否省钱的问题，那个反对意见说新的装置剩下的钱没有安装费用多，这东东省不到20块钱一年。讨论的是省钱还是花钱，主要是跟安装这个新的装置之前情况比较。B符合，以前的装置还需要一堆东西，更花钱。
D：安装费上新的和传统的差不多，但是更换成新的装置还是需要额外的费用，这笔费用比节省下来的水钱多多了，这里也没用。
Ether purpose属于无关词

herosweet

L上正解。主要看的时候削弱过去装置。过去的更花钱

sunlight841206

我同意以上分析，但是还是想知道一下答案，多谢！

bernadotte

我同意以上分析，但是还是想知道一下答案，多谢！

-- by 会员 sunlight841206 (2010/1/12 11:42:03)

the answer is B