选D是没问题啦，可我对B有一个疑问。B中的do只是从句意上理解是指代cost,可是还有一个动词maintain,那么是否会有歧义？认为do指代maintain?
OG156
Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much as maintaining paved roads.
(A) dirt roads cost twice as much as maintaining paved roads
(B) dirt roads cost twice as much to maintain as paved roads do
(C) maintaining dirt roads costs twice as much as paved roads do
(D) maintaining dirt roads costs twice as much as it does for paved roads（B）
(E) to maintain dirt roads costs twice as much as for paved roads
排除的话我能选B ，但是怎么看B怎么别扭啊！
(B) dirt roads cost twice as much to maintain as paved roads do
觉得as much as 应该在一起！能说：
dirt roads cost twice to maintain as much as paved roads do 吗？？这个样子对吗？
谢谢 ！
我反而觉得to maintain 放在里面比较顺眼
放在里面 比较像修饰dirt roads 和 paved roads
放前面感觉比较像只修饰dirt roads
不知这样对不对?
我感觉，后面的DO ,已经表示，to maintain 了！这样已经保证了比较的一致性了啊！
还是觉得，放前面顺眼啊！！
55555
哦？？为什么我的帖子有’尾巴‘了呢？
|
奇怪！
as much as作为一个副词结构修饰动词，如果放在maintain后而不是cost后会造成as much as修饰歧义；B－dirt roads cost twice as much to maintain as paved roads do中的to maintain可以看成一个补语成分，如果我们将这个成分去掉，句子就成为：dirt roads cost twice as much as paved roads do, do指代cost，由此可将as much as是十分清楚地修饰动词cost。
as much as作为一个副词结构修饰动词，如果放在maintain后而不是cost后会造成as much as修饰歧义；B－dirt roads cost twice as much to maintain as paved roads do中的to maintain可以看成一个补语成分，如果我们将这个成分去掉，句子就成为：dirt roads cost twice as much as paved roads do, do指代cost，由此可将as much as是十分清楚地修饰动词cost。
原来是这样 thanks!!
谢谢斑竹！收到！
但是还要笨苯的问！
B中to maintain 作用2个方面－ 比较一致？总觉得B 的比较双方也不一致啊！
谢谢！
收到 谢谢斑竹！
在此句子中，两处谓语一致，是否可以省略？即那个do!
不可以，因为比较之所以要补足助动词，是一个Effectiveness的问题，为了消除logical ambiguity，不要用思维惯性去理解。
是dir roads cost与pave roads (cost)的比较。
as much as作为一个副词结构修饰动词，如果放在maintain后而不是cost后会造成as much as修饰歧义；B－dirt roads cost twice as much to maintain as paved roads do中的to maintain可以看成一个补语成分，如果我们将这个成分去掉，句子就成为：dirt roads cost twice as much as paved roads do, do指代cost，由此可将as much as是十分清楚地修饰动词cost。
個人覺得不行,因為句意會改變,OG的 A 選項解釋就說
A的寫法會造成 the cost of dirt roads 跟 the cost of maintaining paved roads 比較 ...
是不是比较的对象要绝对的一致。比如说dirt roads就要对paved road。
the cost dirt roads与the cost of maintaining paved roads是说在土路上花的钱和维持铺路花的钱做比较？
这个的问题是什么呢？还是我的翻译有问题
要逻辑意思上的绝对一致，要是能语法结构上也绝对一致更好。为此，to maintain放在as much as 中使其可以修饰前后比较对象，使得比较对象逻辑和语法上都一致。
MM的翻译没有问题，所以出现比较对象不一致。
关于比较的总结，MM可以搜搜，有NN做过很详细的总结。
that从句中的主语为什么不是maintain dirt road？是维护费用的比较，d，e为什么不对呢？
选D是没问题啦，可我对B有一个疑问。B中的do只是从句意上理解是指代cost,可是还有一个动词maintain,那么是否会有歧义？认为do指代maintain?
选D是没问题啦，可我对B有一个疑问。B中的do只是从句意上理解是指代cost,可是还有一个动词maintain,那么是否会有歧义？认为do指代maintain?
不会，如果是比较maintain的话，就应该是to do了吧，因为比较的两方面要严格一致，都是不定式。
在此句子中，两处谓语一致，是否可以省略？即那个do!
我也有这个问题， (B) dirt roads cost twice as much to maintain as paved roads do 我觉得do可以省略阿，看了比较的庖丁解牛，上面说，如果句子没有宾语，只有主谓，那么可以在比较词as/than后面直接跟比较的主语成分，不用补足谓语成分，因为不会造成主语和宾语比较的歧异。我觉得这里就是这种情况，do完全可以省略阿。另外，to maintain是不定式结构，所以省略do也不会有歧异的。。。困惑中/
(B) dirt roads cost twice as much to maintain as paved roads do
我觉得do可以省略阿，看了比较的庖丁解牛，上面说，如果句子没有宾语，只有主谓，那么可以在比较词as/than后面直接跟比较的主语成分，不用补足谓语成分，因为不会造成主语和宾语比较的歧异。我觉得这里就是这种情况，do完全可以省略阿。另外，to maintain是不定式结构，所以省略do也不会有歧异的。。。困惑中/
that从句中的主语为什么不是maintain dirt road？是维护费用的比较，d，e为什么不对呢？
我的看法：
对于D， as it does for paved roads中的it是无所指代的，因为maintain是个动词。
如果是maintenance of dirt roads cost twice as much as it does for paved roads. I think this maybe right.
如果C改成 maintaining dirt roads costs twice as much as maintaining paved roads do行不行
应该不行，这样的话，maintaining 就是修饰roads了 ,不觉得很别扭吗？说不通了。
我也有个问题：B中的dirt roads ……to maintain，是不是可以改成dirt roads……to be maintained，我感觉应该是
roads 应该是maintain 的宾语，不能成为maintain的施动者吧？
应该不行，这样的话，maintaining 就是修饰roads了 ,不觉得很别扭吗？说不通了。
我也有个问题：B中的dirt roads ……to maintain，是不是可以改成dirt roads……to be maintained，我感觉应该是
roads 应该是maintain 的宾语，不能成为maintain的施动者吧？
好像有点道理啊.不过
如果这样说的话,dirt road 也不能costs了.
我的看法：
对于D， as it does for paved roads中的it是无所指代的，因为maintain是个动词。
如果是maintenance of dirt roads cost twice as much as it does for paved roads. I think this maybe right.
同意~~~
至于Maintaining dirt roads costs twice as much as maintaining paved roads do....
我觉的是可行的呀...
请指教~~
我也有这个问题， (B) dirt roads cost twice as much to maintain as paved roads do 我觉得do可以省略阿，看了比较的庖丁解牛，上面说，如果句子没有宾语，只有主谓，那么可以在比较词as/than后面直接跟比较的主语成分，不用补足谓语成分，因为不会造成主语和宾语比较的歧异。我觉得这里就是这种情况，do完全可以省略阿。另外，to maintain是不定式结构，所以省略do也不会有歧异的。。。困惑中/
(B) dirt roads cost twice as much to maintain as paved roads do
我觉得do可以省略阿，看了比较的庖丁解牛，上面说，如果句子没有宾语，只有主谓，那么可以在比较词as/than后面直接跟比较的主语成分，不用补足谓语成分，因为不会造成主语和宾语比较的歧异。我觉得这里就是这种情况，do完全可以省略阿。另外，to maintain是不定式结构，所以省略do也不会有歧异的。。。困惑中/
同问，（b）里面的do可以省略么？
同问，（b）里面的do可以省略么？
156. Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much as maintaining paved roads.
(A) dirt roads cost twice as much as maintaining paved roads
(B) dirt roads cost twice as much to maintain as paved roads do
(C) maintaining dirt roads costs twice as much as paved roads do
(D) maintaining dirt roads costs twice as much as it does for paved roads
(E) to maintain dirt roads costs twice as much as for paved roads
虽然我也知道b是正确答案
同问d)选项 如果改成 maintaining for dirt roads costs twice as much as it does for paved roads 这样是否就正确了？
如楼上所说it 可以指代maintaining
谢谢高人指点
我看了比较问题的精华贴总结，上面说这是主语比较中，较复杂的一种，是主谓宾全+ as+ adj.+ 不定式宾语+as的用法。这时候需要补出谓语。但是有个问题，to maintain是cost 的宾语么？原句是否还原成dirt roads cost to maintain twice as much as paved roads cost to maintain?
to maintain 不定式做补语，表花钱的目的
cost的宾语是钱或时间，cost $10 to keep it
试比较：I want to be happy 宾语
I want you to be happy 补语
我想说说的的想法，希望各位能告诉我想得对不对。
首先，我引用的这道体里面it指代的是“owning and living in a freestanding house on its own land”(我们暂且把这一长串叫做A) 而不仅仅是"owning and living".
这句的意思是，A is a goal of majority of young adults, as A was of earlier generations.
因此本帖所说的这道题里面（重新贴一下省得大家翻着麻烦）
Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much as maintaining paved roads.
(A) dirt roads cost twice as much as maintaining paved roads
(B) dirt roads cost twice as much to maintain as paved roads do
(C) maintaining dirt roads costs twice as much as paved roads do
(D) maintaining dirt roads costs twice as much as it does for paved roads（B）
(E) to maintain dirt roads costs twice as much as for paved roads
尽管OG11里面说D选项中的it指代不明，但我觉得即使it有指代的话，它应该指代“maintaining dirt roads” 而不仅仅是maintaining。
还原之后应该是maintaining dirt roads costs twice as much as maintaining dirt roads costs for paved roads. 这显然是不对的。
我对着里面指代的理解没有错吧？？？？请指点~~
156. Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much as maintaining paved roads.
(A) dirt roads cost twice as much as maintaining paved roads
(B) dirt roads cost twice as much to maintain as paved roads do
(C) maintaining dirt roads costs twice as much as paved roads do
(D) maintaining dirt roads costs twice as much as it does for paved roads
(E) to maintain dirt roads costs twice as much as for paved roads
虽然我也知道b是正确答案
同问d)选项 如果改成 maintaining for dirt roads costs twice as much as it does for paved roads 这样是否就正确了？
如楼上所说it 可以指代maintaining
谢谢高人指点
IT 只能 指代maintaining dirt roads 代入后明显不通顺 甚至有歧义。。。
我的看法：
对于D， as it does for paved roads中的it是无所指代的，因为maintain是个动词。
如果是maintenance of dirt roads cost twice as much as it does for paved roads. I think this maybe right.
it不仅指代中心语还包括所有修饰中心语的形容词
如果用it的话 it是否指代maintenance of dirt roads，那如果改成maintenance of dirt roads cost twice as much as that does for paved roads.行不行了？？
还有之前提到的
maintaining dirt roads costs twice as much as maintaining paved roads do行不行了？
应该没正确答案好 ，因为比较啰嗦 但是从语法角度来看 应该不算错吧？？？？
so many days passed
need helpssss
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