Q16:
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
答案是C，我选B。
我觉得C的问题是：首先，时态上有点牵强，感觉上用过去时应该比较好。另外，they在这里应该指代costs,那than从句的结构应该与前面平行。前面说的是costs accounted for，而than后面是用的be动词，不平行啊。
B选项可以看作是比较从句的省略形式，这种省略在OG198和251里可以找到类似的。
sorry, 前面没看清楚题目....cc
至于it指代proportion
再看了一遍, 倒觉的B好....(C)的they不能用来指代proportion; (A)的时态有问题......
why b? 版主能解释清楚一点嘛, 哪有关于这道题的讨论连接呀,
谢谢!
顶
我也没找到以前的讨论。试着解释解释，NN们看对不对：
than后面的从句补全了应该是：than the costs acccounted for in any previous election, 因此，如果要用代词和助动词，也应该是：than they did in any previous election. 这样，其它几个答案都有总题。而B，实际上可以看作是比较从句省略了主谓语，因为这里主谓语都与主句相同。这种例子在OG中有，如：
251. The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970’s.
(A) extinction; its numbers are now five times greater than
(B) extinction; its numbers are now five times more than
(C) extinction, their numbers now fivefold what they were
(D) extinction, now with fivefold the numbers they had（A）
(E) extinction, now with numbers five times greater than
than后面的从句补全了应该是：than the costs acccounted for in any previous election, 因此，如果要用代词和助动词，也应该是：than they did in any previous election. 这样，其它几个答案都有总题。而B，实际上可以看作是比较从句省略了主谓语，因为这里主谓语都与主句相同。这种例子在OG中有，如：
greater proportion 怎么可以用来跟cost做比较?
个人觉得,取舍之间, 1. 比较的对象不能改 the greater proportion that the proportion in any previous election, 因为是同类但是不同东西, 所以应该选than it 的答案; 只有A and E 可以选;考虑时态, E的线在完成式显然不合逻辑,所以我认为答案是A
我认为最没道理的就是答案C，从时态、指代上分析应该是B
各位大侠,我还是想请教B选项的问题
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
A. a greater proportion than it was
B. a greater proportion than
C. a greater proportion than they have been
D. which is greater than was so
E. which is greater than it has been
如果B选项中than后面不补出it (proportion in any previous year) 不是就表示1992的proportion与之前的proportion都是同一个数据吗? 说实在, 我不觉得A的时态有任何问题, 当然能够强调出had been 是最好, 但是我觉得比较上的对称要优于强调时间的先后,况且,同用过去式虽然模裬两可,但是不能说一定错, 对吗?
Rhod, 你的意见如何阿?
推
sheila123 MM
那我就想问了,b里省略了不管是proportion,还是costs,不同年代的proportion,还是costs可以被当作同样的东西被省略吗?
A虽然犯了你说的考量,但是比起B来,补出了it是不是比较严谨一些?
欢迎讨论``
做题时我也选了A, 后来看讨论发现B 更有道理。A 中 a greater propotion than it was in any previous elections 中的"was" 没有前面的动词作比较。因为前面只有一个动词是"accounted for", 不可能用was 来代替
不了解你说的动词比较…..你的意思是说than后面省略了costs?
那就更怪了,既然如此,那题目不必补出the greater proportion阿…
如果是省略了costs
原句我的写法
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, the greater costs than the costs in any previous election.
在这,我想讨论一下为什幺要把costs在1992后面再写一遍的原因
因为主语soaring television costs 距离想要表达的 greater than太远,为了避免语意不清,补出主语是在og里常见的做法.但是这题补出的是a greater proportion,这个
a greater proportion 是指代 (Soaring television costs accounted for more than half the spending in the presidential campaign of 1992)
所以我不认为than后面省略的是costs!!
A: Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
B: Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than in any previous election.
我把a与b带入原句,如果我错了,希望各位能反驳我I think B is right. 省略的是proportion. 类似的有og198.
Although Napoleon’s army entered Russia with far more supplies than they had in their previous campaigns, it had provisions for only twenty-four days.
(A) they had in their previous campaigns
(B) their previous campaigns had had
(C) they had for any previous campaign
(D) in their previous campaigns（E）
(E) for any previous campaign
Thanks Rhod, I will digest all the discussions
New question comes up. I origianlly thought " a greater propotion than it was in any previous elections, "was" has no verb to refer back. But please look at OG 30:
30. What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as
the Key is C. but the latter half of the sentence " in better sound than was ever before possible", seems the same structure as in the "a greater propotion than it was in any previous elections." what you think.
why ets kept "was" rather than just omit it and make the sentence to be " than ever before?" so a greater propotion than it was in any previous elections can also be right, what youthink:?
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
今天才看到这道比较题，还真有点不同，
Although Napoleon’s army entered Russia with far more supplies than（it had had） for any previous campaign, it had provisions for only twenty-four days.
比较对象是主语Napoleon’s army，所以后面补出代词it，过去的过去，所以用了过去完成时had had。
这道题的比较对象是television costs，C不对的原因只是因为时态不对。
Soaring television costs (accounted for more than half the spending in the presidential campaign of 1992),a greater proportion than( television costs had been) in any previous election.
New question comes up. I origianlly thought " a greater propotion than it was in any previous elections, "was" has no verb to refer back. But please look at OG 30:
30. What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as
the Key is C. but the latter half of the sentence " in better sound than was ever before possible", seems the same structure as in the "a greater propotion than it was in any previous elections." what you think.
why ets kept "was" rather than just omit it and make the sentence to be " than ever before?" so a greater propotion than it was in any previous elections can also be right, what youthink:?
我认为这里的关键是than ever before和than ever before possible的差异，前者我们可以将was省略掉，后者，由于possible的存在造成was不能被省略。
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
今天才看到这道比较题，还真有点不同，
Although Napoleon’s army entered Russia with far more supplies than（it had had） for any previous campaign, it had provisions for only twenty-four days.
比较对象是主语Napoleon’s army，所以后面补出代词it，过去的过去，所以用了过去完成时had had。
这道题的比较对象是television costs，C不对的原因只是因为时态不对。
Soaring television costs (accounted for more than half the spending in the presidential campaign of 1992),a greater proportion than( television costs had been) in any previous election.
哎呀，我现在强烈认为是选A.
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
A. it was 中的 it 指代‘proportion', 补全为：a greater proportion than the proportion was in any previous election. 因为比较结构在句尾作同位语，所以如果省略“it was" 的话，很可能使得proportion 与主语比较，也即costs, 就错了。看og 以下两个例子：
89. A recent national study of the public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago.
(A) there are now one microcomputer for every thirty-two pupils, four times as many than there were
(B) there is now one microcomputer for every thirty-two pupils, four times as many than there were
(C) there is now one microcomputer for every thirty-two pupils, four times as many as there were
"four times as many as there were four year ago", 补出了”there were'.
30. What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as
"in better sound than were ever before" 也补出了助动词。
rhod 举得Napoleon 得列子有点不同，因为比较结构不在同位语或独立主格结构中，所
以省略"they had" (主语）不会有任何歧义。
Although Napoleon’s army entered Russia with far more supplies than they had in their previous campaigns, it had provisions for only twenty-four days.
(A) they had in their previous campaigns
(B) their previous campaigns had had
(C) they had for any previous campaign
(D) in their previous campaigns（E）
(E) for any previous campaign
大家认为呢？我都快被GWD折磨死了
A错在it，应该用they指代television costs
Although Napoleon's army entered Russia with far more supplies than they had in their previous campaigns, it had provisions for only twenty-four days.
(A) they had in their previous campaigns
(B) their previous campaigns had had
(C) they had for any previous campaign
(D)in their previous campaigns
(E) for any previous campaign
我同意拿破仑那题是需要省略，因为比较结构在主句中，省略主语，谓语，没有歧义。但是此题it refers to " propotion". 在看og 30
30. What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era. (A) What was as remarkable as the development of the compact disc (B) The thing that was as remarkable as developing the compact disc (C) No less remarkable than the development of the compact disc
我认为than 后省略的是 "sound". so it becomes " in better sound than the sound was ever before possible. 因为“in better sound than was ever before" 是realize 的状语，所以，省略的不可能是主句的主语（the use of the new technology to revitalize) 或是（the development of the compact disc ）。因为省略的是“sound" ， 状语结构中的一部分，所以was 要补出，但不知道为什么不用 "a better sound than it was ever before".
大家觉得那？
我觉得你的理解有偏差；
What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
这道题更复杂，关键ETS把句式全部给打乱了。（some of the classic recorded performances of the pre-LP era）(by using the new technology to revitalize) in better sound than ever before was possible.
为了突出新技术，把它提前。
举个中文的例子：
Mindfree的GMAT成绩比别人的都高！
比较的对象是Mindfree和其他人，比较的是成绩，用句子表示的话就会省略成绩，而保留主语，这里主语不同。
再看这道题，其实要表达的意思就是：电视开销所占总开销的部分比以前（电视开销所占的）都要多。
同样比较对象是电视开销，比较的是电视开销所占用的总开销部分。
不知道这么说，有没有说明白。
leeon ah, I can't agree with you.
你说的意思都不错，但是你改写了原举。唉呀，我要写我的想法的话，太长了。简而言之，我觉得比较结构在主句中，和它在修饰成分中，省略的原则有所步同。Please note that you've rewritten the OG 30 so that the origianl, discussed comparison is no longer an issue in your rewritten sentence. By deleting "revitalize", you've changed the structure of the sentence. Also, OG 30 doesnt mean "some of the classic recorded performances of the pre-LP era) was in better sound than was ever before" because the "was" doesn't agree with " the performances". So your interpretation is incorrect. Therefore, the omitting part in original sentence ( in better sound than was ever before) is not " some of the classic recorded performances" but " the sound".
What you think?
说句实在话，这道题我一直觉得有问题，既然现在大家要讨论，那就借此讨论个彻底！
What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as
Besides being wordy, the clauses beginning What was in A and The thing that was in B cause inconsistencies in verb tense: the use of the new technology cannot logically be described by both the present perfect has been and the past was. In B and D, developing the compact disc is not parallel to the use of new technology to revitalize ... performances; in C, the best answer, the noun development is parallel to use. The phrases none the less ... than in D and no less... as in E are unidiomatic; the correct form of expression, no less ... than, appears in C, the best choice.
这里的better sound than，是比较，所以这里的better应该是副词，那么这样的话,后面的sound就不能为名词，而只能是动词或形容词，用在形容词这里明显解释不通，用作动词我觉得和前面的介词in又矛盾，因为前面的介词in限定了这里只能是名词或动名词，那么也就限定了better是形容词，那么这里的比较何在？如果改成sound better than ever before就能解决前面的问题。而且这时的主语就很明显了。
支持A，请看大全10：
1. A large rise in the number of housing starts in the coming year should boost new construction dollars by several billion dollars, making the construction industry’s economic health much more robust than five years ago.
(A) making the construction industry’s economic health much more robust than five years ago
(B) and make the construction industry’s economic health much more robust than five years ago
(C) making the construction industry’s economic health much more robust than it was five years ago
(D) to make the construction industry’s economic health much more robust than five years ago（C）
(E) in making the construction industry’s economic health much more robust than it as five years ago
支持选A。比较costs逻辑上不通。
另外，in better sound中的sound是名词，better是形容词。我查了金山词霸（不要鄙视我
）
better adj.
Comparative of good;
good的比较级形式;
What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than (省略the sound)was ever before possible, some of the classic recorded performances of the pre-LP era.
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
I think B is better. In choice A, "was" is not the proper tense. Inspired by Leeon.
Soaring television costs (accounted for more than half the spending in the presidential campaign of 1992),a greater proportion than( the proportion had been) in any previous election.
這題討論很久了，記得答案原本公布為C，但後來討論是B
理由是B在than後面省略了had accounted
这题经过Rhod指教后
其实一直有疑惑
后来看了大全这题后
299. Florida will gain another quarter-million jobs this year alone, many of them in high-paying fields like electronics and banking, making the state’s economy far more diversified than ten years ago.
(A) high-paying fields like electronics and banking, making the state’s economy far more diversified than
(B) high-paying fields like electronics and banking, and making the state’s economy far more diversified than its economy
(C) high-paying fields such as electronics and banking, to make the state’s economy far more diversified than
(C)** high-paying fields such as electronics and banking, making the state’s economy far more diversified than
(D) such high-paying fields as electronics and banking, making the state’s economy far more diversified than it was
(E) such high-paying fields as electronics and banking, and make the state’s economy far more diversified than it was
如果c改成像 (C)** 你会选哪个?
我还是维持我原来的决定选a
如果各位要知道我选a的原因
到前几层楼找找吧…..
I agree this point!
我选B，因为A中it 指代不清。除了大家给出的OG的例子，大全里一个例子不知合不合适。
1. In 1990’s, there are more babies born by women over thirty years old than under it.
(A) than under it
(B) than were they under it
(C) than had been under it
(D) than were the babies（A）
(E) than those were under it
me too！
so I think choice(B) is the correct answer.
说了我想说的!支持B.
这题做时选的B, 讨论看得我迷迷糊糊, 干扰了思路, 最后思路是:
1.这题比较的动词应该补出, 因为是针对不同时期的比较
2.可以用it指代a proportion, 因为是同一个概念,不是具体实物
3.a greater proportion than it was=a proportion that is greater than it was
最后,觉得A的时态有问题, 应该是was和it had been相比较, 所以可能还是B好一点吧, 因为用名词短语比较情况下可能可以不用补出动词
综合大家的看法，我觉得应该是 B
句子补全应该是Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than (it had been)in any previous election. it指代 proportion
所以A错在时态上，C则比较对象不对，因为they只能指代costs。这确实类似于OG198 Although Napoleon's army entered Russia with far more supplies than (supplies) for any previous campaign, it had provisions for only twenty-four days. 根据OG198的讨论，for前省略的是supplies，虽然OG解释中有这么一句话：If than is followed by a clause referring to army, the subject of that clause must be singular (it). Furthermore, the verb of that clause will need to be in the past perfect form (had had) because it refers to a time before the simple past of entered. 但注意，解释的开始有If表示假设，表前提。
赞同选B，发现GMAT喜欢在描述数字的时候（很多时候是百分数），常常用一个概括性的名词来指代前面出现的数目。本题中：proportion指代more than half. 同意nosmoking，A的错误在于时态错，而不是指代错。
Og 81：
81. In 1973 mortgage payments represented twenty-one percent of an average thirty-year-old male's income; and forty-four percent in 1984.
(A) income; and forty-four percent in 1984
(B) income; in 1984 the figure was forty-four percent
(C) income, and in 1984 forty-four percent
(D) income, forty-four percent in 1984 was the figure
(E) income that rose to forty-four percent in 1984
我个人认为应该选a。因为it指代的不是costs而是指代more than half这个proportion.
The tense in C is not correct, should be
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than they had been in any previous election.
As what nosmoking explained, similar example can be found in OG 198.
Thus, B is a better choice.
猪头小妹，你补出的的“they had been”不对，上面47楼（对不起我不会引用）才是正解
句子补全应该是Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than (it had been)in any previous election. it指代 proportion （引自47楼）
我对所有讨论的总结，有几下几个
1、than 后面，如有代词指代，应该是指代 Proportion 而不是costs
2、如果指代 proportion, 代词用单数是对的（不知道为什么，没有大虾说起，我个人以为，因为后面用any，意思是任何一年，所以单数是对的）
3、如果指代 proportion, 助动词用 be 也是对的
4、A 的问题在于 was 的时态，而B，因为省略了（大虾们认为省略的问题不如时态错误严重吧），所以B对
B 对，因为补全后句子为：
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than the proportion Soaring television costs accounted for in any previous election.
B 对，
我觉得 a greater proportion than in any previous election. 就是一个同位语，补全了应该是
a greater proportion than the proportion in any previous election.
than 前面是个短语， 后面也应该是个短语， 干吗要补出谓语？不理解。补出谓语是不是反而错了？
同意57楼的意见，这道题其实就是和拿破仑的那道题OG198道理一样的。
与og198对着看，仔细看这题ets的解释，有助于理解为什么只有B正确！
support B.
可以把这句句子看成：Soaring television costs accounted for a greater proportion of the spending in the presidential campaign of 1992 than ... in any previous election.
省略号这里很明显有两种可能性：
1) they had been: they指代soaring television costs, had been表示发生在accounted之前
2) 索性不补出。即直接in any previous election。 因为句子里面比较的是这一次election和以前election的情况。
og 198中的解释和具有参考价值！
open to discussion!!
同意省略掉的代词是they 而不是it
但省略掉的应该是they had accounted for proportions
请大家把more than half 等等去掉,句子变成这样:
Soaring costs accounted for a greater proportion than (they had accounted for proprtions) in any previous election.
如果用代词指带proportion的话,就犯了地震那道题的错误了
__________________
发完贴才发现楼上的JJ/MM和我的意思一样,我就弱弱的再补充一点自己的看法啦
further more 如果更native点的话, they只能用来指人不能用来指物(看以前贴看到,未经考证) 那么这里除了省略掉,似乎没有其他更好的办法了哦?
支持B！
OG198：Although Napoleon's army entered Russia with far more supplies than for any previous campaign, it had provisions for only twenty-four days.
If than is followed by a clause referring to army, the subject of that clause must be singular (it). Furthermore, the verb of that clause will need to be in the past perfect form (had had) because it refers to a time before the simple past of entered.
用在本题：If than is followed by a clause referring to costs, the subject of that clause must be plural (they). Furthermore, the verb of that clause will need to be in the past perfect form (had accounted for) because it refers to a time before the simple past of accounted for.
由此可得选项B
也可推出B的than后省略的不是句子，而是一个名词，即the proportion。
其实than+句子的情况也可以看作定从省略了所修饰的名词，如：Although Napoleon's army entered Russia with far more supplies than (supplies) it had had for any previous campaign, it had provisions for only twenty-four days.
所以这道题我认为两种说法都对：
1。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than (the proportion) they had accounted for in any previous election.
2。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than in any previous election.
open to discussion
错：(B) a 毫无疑问是A
it 指proportion，前后时间不同，要补出。
例：大全10
错：rise and make the construction industry’s economic health much more robust
than five years ago
不知可否这样理解：
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, （costs accounted for) a greater proportion than (they were/had been) in any previous election.
IT应该指代原物吧，这样说来，A的IT是有问题的，因为以前的proportion和1992年的proportion不是同一个，如果补全B的话，
a greater proportion than the proportion had been in any previous election
open to discussion...
错：(B) a 毫无疑问是A
it 指proportion，前后时间不同，要补出。
例：大全10
错：rise and make the construction industry’s economic health much more robust
than five years ago
对：(C) a rise making the construction
industry’s economic health much more robust than it was five years ago
C：they单复数错。
不能和大全中的这道比，因为大全中的这道在"five years ago"之前没有介词，很容易产生歧义。而这里有"in"这个介词，所以我觉得省略了主谓不会有歧义。
我也支持选B!!!
应该是B,这题与OG-198/251是类似的，it不能指代复数costs，我觉得如果补全了应该是：
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it had been in any previous election.
我奇怪的就是这样的话时态不同了，时态不同的话可以省略么？不懂啊。
答案是b 吗？ 我选的是b
同意schen079的看法,顶
好长的讨论啊……先为大家的精神鼓掌！
我选的是B,但是根据比较对象一致的原则，认为省略的是proportion，前面的a greater proportion指代的是主句宾语：more than half the spending in the presidential campaign of 1992，由于这一部分太长了，所以用proportion来概括，因为是宾语，所以没有发生动作，自然后面的比较对象也就没有需要补出的助动词了
不知道这样理解对吗？请指教
应该是B。
可以这样考虑。
A指代有歧义，IT可以是SPENDING 也可以是PROPOTION。
B很清楚，是PROPORTION 和PROPORTION得比较。请指教。
我选的是B,但是根据比较对象一致的原则，认为省略的是proportion，前面的a greater proportion指代的是主句宾语：more than half the spending in the presidential campaign of 1992，由于这一部分太长了，所以用proportion来概括，因为是宾语，所以没有发生动作，自然后面的比较对象也就没有需要补出的助动词了
不知道这样理解对吗？请指教
顶一下.我也是选的B...我做题的时候想到了OG 中有道题关于拿破仑进攻俄国的...在THAN 后面也紧跟了 for any previous.......所以就选了B
这题是B比较好,但A中的THAN后面省略的应该不是COSTS
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion costs accounted than the proportion of costs had had in any previous election.
终于看完讨论了.同意B.同意LEEON举的OG 198. 要做GWD 才理解OG解释的深层含义啊
其实than+句子的情况也可以看作定从省略了所修饰的名词，如：Although Napoleon's army entered Russia with far more supplies than (supplies) it had had for any previous campaign, it had provisions for only twenty-four days.
所以这道题我认为两种说法都对：
1。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than (the proportion) they had accounted for in any previous election.
2。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than in any previous election.
同意！选B无疑。只是我同意省略的是(the proportion) they had accounted for
同意B
支持B！
OG198：Although Napoleon's army entered Russia with far more supplies than for any previous campaign, it had provisions for only twenty-four days.
If than is followed by a clause referring to army, the subject of that clause must be singular (it). Furthermore, the verb of that clause will need to be in the past perfect form (had had) because it refers to a time before the simple past of entered.
用在本题：If than is followed by a clause referring to costs, the subject of that clause must be plural (they). Furthermore, the verb of that clause will need to be in the past perfect form (had accounted for) because it refers to a time before the simple past of accounted for.
由此可得选项B
也可推出B的than后省略的不是句子，而是一个名词，即the proportion。
其实than+句子的情况也可以看作定从省略了所修饰的名词，如：Although Napoleon's army entered Russia with far more supplies than (supplies) it had had for any previous campaign, it had provisions for only twenty-four days.
所以这道题我认为两种说法都对：
1。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than (the proportion) they had accounted for in any previous election.
2。Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than in any previous election.
open to discussion
同意红色部分，所以依照ets解释，感觉本题省略的应该是the costs had accounted for
不知这样理解是否正确？
支持A，请看大全10：
1. A large rise in the number of housing starts in the coming year should boost new construction dollars by several billion dollars, making the construction industry’s economic health much more robust than five years ago.
(A) making the construction industry’s economic health much more robust than five years ago
(B) and make the construction industry’s economic health much more robust than five years ago
(C) making the construction industry’s economic health much more robust than it was five years ago
(D) to make the construction industry’s economic health much more robust than five years ago（C）
(E) in making the construction industry’s economic health much more robust than it as five years ago
原本我也选a的,但是细想一下
it 的指代似乎有问题,指的是 a greater proportion这一整个连中心词带修饰,带回原句,就出现了问题
所以似乎犯了<美国东西部地震>那题og的毛病,在上面这个例子中,construction industry’s economic health 代前代后都似乎没有问题,所以a似乎不对了
支持B
C中的 they指代错误
做题时我也选了A, 后来看讨论发现B 更有道理。A 中 a greater propotion than it was in any previous elections 中的"was" 没有前面的动词作比较。因为前面只有一个动词是"accounted for", 不可能用was 来代替
可不可以这么理解：1992年，more than half the spending的这个propotion 比 any previous elections的propotion都大，那么was是就是正确的。在这里我觉得不能把was根 accounted for平行，was对应的应该是propotion而不是costs.
而且，根据ets出题的习惯，像这种than结构的题，一般是要在than后面加什么东西的，比如than they do in any previous eletion, than those of xxx in any previous elections。
不知道我这么理解对不对？请指教
我觉得是B对的 本题是不同年份情况的PROPORTION的比较 请指教
看了大家的讨论很有启发，我最后觉得只有B和C比较合理。
但查阅牛津语法书后，觉得应该排除掉B：
书里是这样写比较级，很有参考价值：
当than前后的动词相同的时候，than后面的可用助动词：
比如：I earn less than he does.
当than后面只是由主语和动词构成，没有其他成分的时候，后面的动词可以省略
比如：He has more time than I(have).
在这道题里面，后面还有一个状语：in any previous election.，所以than后面的动词不应该省略。所以，B不对。
看了大家的讨论很有启发，我最后觉得只有B和C比较合理。
但查阅牛津语法书后，觉得应该排除掉B：
书里是这样写比较级，很有参考价值：
当than前后的动词相同的时候，than后面的可用助动词：
比如：I earn less than he does.
当than后面只是由主语和动词构成，没有其他成分的时候，后面的动词可以省略
比如：He has more time than I(have).
在这道题里面，后面还有一个状语：in any previous election.，所以than后面的动词不应该省略。所以，B不对。
选B吧
我觉得把it was提前更通顺一些，it是指代前面的那句话，因为前面的话实际上就是说的一个比率
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, （it was ）a greater proportion than in any previous election.
Q16:
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
支持Ｃ
时态来看Ａ，Ｃ都可以
但是指代关系一定要用Ｃ，＂比以前的选举．．．比例都要高＂是成本高．主句用的costs所以Ｃ好
Ｂ的省略我觉得口语没问题．正式文体还是不好
C 的时态是错误的，首先排除c,我觉得提炼一下此句应该是这样：
Soaring television costs accounted for a greater proportion in election of 1992 than (television costs had accounted for ) in any previous election
C我觉得不对，have been,肯定不行的吧。
按94楼说的，B也不对，我觉得有道理
然后我就觉得还是A好，从逗号后面的句子看，it指proportion.
还是觉得有点混乱...
那我就选A了...
天那！after 30 mins: 晕就一个字。。。。闪了先
这道题的省略我觉得应是这样的：a greater proportion than（the proportion television costs accounted for）in any previous election
拿破仑那题是with more supply than （the supply it had had）for any previous campaign。
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