刚考完GMAT，VABAL44，受惠于CD很久，也希望对后人能栽点树，我想就我对比较的认识写点东西。我把OG上所有的比较都总结了一下，发现GMAT比较是有家规的，看似花样百出，实际是有章可循的，看下题
OG19
请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheta does.(主语比较，Rice 与wheat比）
意义：米有高质蛋白质，麦没有。
Rice has protein of higher quality than of lower quality(介宾比较，of higher 与 of lower比）
意义：米有高质蛋白质而非低质蛋白质
Rice has protein of higher quality than that in wheat(宾语比较，protein 与protein(that指代)比
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的蛋白质比麦中蛋白质质量高
意义：米中的高质蛋白质比糖多。
Rice has protein of higher quality than usual/everbfore/1000 years ago/people expected(状语比较）
意义：米比通常/经往/多年前/人们预测/的蛋白质质量要高。
下面我们谈比较之庖丁解牛
对主谓宾全的句型
主语比较： A do sth than B do.（AB为对等名词，加do是为了显示这是一个可以发出动作的名词，因而确定是主语，进而确定是主语对比）
介宾比较 A do sth of C1 by D1 than of C2 by D2.（C1C2，D1D2对等名词）
宾语比较 A do C1 than C2.(C1C2为对等名词）
状语比较A do sth than usual/everbefore/people expected(直接加状语）
ETS就这几下子，原则就是清楚地指示什么跟什么比。
按照这个原理，对下一种句型只有主谓，没有宾语的句子，因为没有宾语，只可能有主语比较，因而不需要重复do来确认这是一个可发出动作的主语，所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do
如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。
AS族的比较大同小异，as 可单独引导比较，也可以复合成as many as, as hard as 等形式，但ETS宗旨不变，如
Sand road costs twice as many to build as to manintain(类似于介宾比较）
Sand road costs twice as many to build as stone road do(主语比较,）
Sand road costs the govement twice as many to build as the residents.(宾语比较）
ETS考过AS比较的习惯用法（不受上述限制，如下）
AS poor as they are, they can ont afford a car.
They have 800million students, as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子，AS在这里的作用更类似连词，连接一个主句和一个从句）
注意AS有时不表比较的如as you word hard, you will pass the exam.表原因了。
There be 句型等同于一般的主谓宾俱全的句型
OG89
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)
There is one PC for every 32 pupils in American four time as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four time as many as for school teachers.(介宾比交)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
以上的钢领代入EST的OG几乎都成立，在我这次实战中也成立，但GWD中有一题是例外的，也就是说并没有放之四海而皆准的真理，清楚，简洁，合理才是ETS的最高宗旨。
thank you very much!!!总结的狂好，谢谢楼住了
好贴的说～～～，正为比较confuse呢～～
谢谢了～～～
好！！！
几天发现一个反例:
OG 46中标准答案没有补出谓语动词, 但句子却是完整的SVO形式.
但这个总结还是很不错的. 提醒大家注意对于effectiveness的问题, 不要太执拗.
cwang的总结对我很有帮助！
有一个想法。
薰衣紫草提到的OG 46，是对主语进行比较。这里之所以没有补出谓语动词，是不是因为即使不补出，也不会引起歧义？
cwang原创中提到“I eat apple faster than you do如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。” －－－这个例子属于主语的比较，之所以一定要补出谓语动词，是因为如果不补，会引起歧义。
所以如果是对主语进行比较，补不补出动词是不是取决于会否引起歧义呢，如果不会引起歧义，还是不加更简洁？
不知道理解对不对，请讨论！
cwang关于比较的总结也是我至今见过最好的一个.
cwang总结里的意思是说如果一个句子没有宾语, 谓语动词就不必补出. 但如果主, 谓, 宾齐全, 就应该补出. 但OG46是个主, 谓, 宾齐全的句子, 之所以没有补出谓语动词是因为不会引起歧义.
Agree！
“I eat apple faster than you do ”和OG 46都是主，谓，宾齐全的句子
之所以一个补出动词，一个没有补出。
区别在于会不会引起歧义，紫草是这个意思吧？
对!
OG对于是否补出谓语动词的标准就是是否有歧义. 但歧义是个很抽象的概念, 所以cwang把它具体成SVO的形式. 从某种角度来说, it makes sense. 但OG46就是一反例.
真的很谢谢cwang的整理! 真的很清楚。 Form24-15 (考古p.53#15)
但有一个整理规则以外的题目，此题是than当关系代词，且than前面省略temple。
不晓得各位怎么解读和归纳？
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
顶一下, 让更多的战友看到这么精辟的总结~~!
Super!!!!!
Thanks a lot!!!!!
well done,thanks.
up!
拯救收苦收难的人啊
刚考完GMAT，VABAL44，受惠于CD很久，也希望对后人能栽点树，我想就我对比较的认识写点东西。我把OG上所有的比较都总结了一下，发现ETS结比较是有家规的，看似花样百出，实际是有章可循的，看下题
OG19
请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheta does.(主语比较，Rice 与wheat比）
意义：米有高质蛋白质，麦没有。
Rice has protein of higher quality than of lower quality(介宾比较，of higher 与 of lower比）
意义：米有高质蛋白质而非低质蛋白质
Rice has protein of higher quality than that in wheat(宾语比较，protein 与protein(that指代)比
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的蛋白质比麦中蛋白质质量高
意义：米中的高质蛋白质比糖多。
Rice has protein of higher quality than usual/everbfore/1000 years ago/people expected(状语比较）
意义：米比通常/经往/多年前/人们预测/的蛋白质质量要高。
下面我们谈比较之庖丁解牛
对主谓宾全的句型
主语比较： A do sth than B do.（AB为对等名词，加do是为了显示这是一个可以发出动作的名词，因而确定是主语，进而确定是主语对比）
介宾比较 A do sth of C1 by D1 than of C2 by D2.（C1C2，D1D2对等名词）
宾语比较 A do C1 than C2.(C1C2为对等名词）
状语比较A do sth than usual/everbefore/people expected(直接加状语）
ETS就这几下子，原则就是清楚地指示什么跟什么比。
按照这个原理，对下一种句型只有主谓，没有宾语的句子，因为没有宾语，只可能有主语比较，因而不需要重复do来确认这是一个可发出动作的主语，所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。
AS族的比较大同小异，as 可单独引导比较，也可以复合成as many as, as hard as 等形式，但ETS宗旨不变，如
Sand road costs twice as many to build as to manintain(类似于介宾比较）
Sand road costs twice as many to build as stone road do(主语比较,）
Sand road costs the govement twice as many to build as the residents.(宾语比较）
ETS考过AS比较的习惯用法（不受上述限制，如下）
AS poor as they are, they can ont afford a car.
They have 800million students, as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子，AS在这里的作用更类似连词，连接一个主句和一个从句）
注意AS有时不表比较的如as you word hard, you will pass the exam.表原因了。
There be 句型等同于一般的主谓宾俱全的句型
OG89
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)
There is one PC for every 32 pupils in American four time as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four time as many as for school teachers.(介宾比交)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
以上的钢领代入EST的OG几乎都成立，在我这次实战中也成立，但GWD中有一题是例外的，也就是说并没有放之四海而皆准的真理，清楚，简洁，合理才是ETS的最高宗旨。
有以下疑问，请指教：
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的高质蛋白质比糖多。？这种比较是否造成歧义？
好呀。解决了问题了
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的高质蛋白质比糖多。？这种比较是否造成歧义？”
受此启发，觉得lz的总结方式有一点瑕疵
我以为比较句的根本结构是 ···比较级···than···
比较的对象最终一定落实到“比较级”修饰的东西上！
“请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheta does.(主语比较，Rice 与wheat比）
Rice has protein of higher quality than of lower quality(介宾比较，of higher 与 of lower比）
Rice has protein of higher quality than that in wheat(宾语比较，protein 与protein(that指代)比
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
Rice has protein of higher quality than usual/everbfore/1000 years ago/people expected(状语比较）”
所以在这5个例子中，红线句是错的，没有比较的意义，higher修饰的是quality，而前后比较的是2 种成分（protein和sugur）！
请前辈指正！
super super super!!!!
跟vedder有同样的疑问，up
儘管如此,本帖總結仍是瑕不掩瑜,寫的太棒了!
總結的部分簡潔有力不說,例句也是寫的挺好的!
感謝!!
OG46, E项正确答案不是反例,因为补出一个do后,我们就会问,这个do替代的是主句中的两个平行动词require和gain中的哪一个呢? 这样一问,就得变成do and do, 但是这种结构属于WORDY,AWKWARD(俗称"难看") 结构,所以只有略去,而且也没有产生歧义.
省略/还原原则: 不产生歧义/争议或丢失信息是第一位的要求, 美学原则是第二位的.省略/还原本质上不是语法上的规则要求, 而是用词经济上(省略)的要求,如果套用"规则"有产生歧义/争议的危险,就不能实施省略/还原.
在没有确凿的证据时,我们要相信OG是有道理的, ETS面对的是全世界的MBA精英们,哪会轻易被我等"老外"拿下?否则全世界人民的口水早把它淹死了!
几天发现一个反例:
OG 46中标准答案没有补出谓语动词, 但句子却是完整的SVO形式.
但这个总结还是很不错的. 提醒大家注意对于effectiveness的问题, 不要太执拗.
OG46, E项正确答案不是反例,因为补出一个do后,我们就会问,这个do替代的是主句中的两个平行动词require和gain中的哪一个呢? 这样一问,就得变成do and do, 但是这种结构属于WORDY,AWKWARD(俗称"难看") 结构,所以只有略去,而且也没有产生歧义.
省略/还原原则: 不产生歧义/争议或丢失信息是第一位的要求, 美学原则是第二位的.省略/还原本质上不是语法上的规则要求, 而是用词经济上(省略)的要求,如果套用"规则"有产生歧义/争议的危险,就不能实施省略/还原.
在没有确凿的证据时,我们要相信OG是有道理的, ETS面对的是全世界的MBA精英们,哪会轻易被我等"老外"拿下?否则全世界人民的口水早把它淹死了!
比较状语得时候也需要补充主谓吧，不能直接加时间状语。
例如： 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
(E) in making the construction industry's economic health much more robust than it was five years ago
分享一下拙见：
同意vender的看法。
Rice has protein of higher quality than sugur.
个人以为这个句子会产生歧义：可能存在rice 与sugar比较，以及protein 与sugar比较的歧义。
另外，同意pl88hello的这句话，
在没有确凿的证据时,我们要相信OG是有道理的, ETS面对的是全世界的MBA精英们,哪会轻易被我等"老外"拿下?否则全世界人民的口水早把它淹死了!
---经典。
可不同意这个“因为补出一个do后,我们就会问,这个do替代的是主句中的两个平行动词require和gain中的哪一个呢?“
因为原文require less medication and gain weight more quickly中，前后两个动词中都带有表比较修饰关系的词。所以，我觉得这里若补出do的话，应当是指代前面的两个呈并列关系的动词，是没有歧义和akward的。
另请大牛帮助解答考古体p53-15,我怎么觉得d看上去很顺眼，而且也比较清楚呢？
还有，能不能请sinray多补充几个例子呢？我觉得“比较状语得时候也需要补充主谓吧，不能直接加时间状语“存在反里，就是一时找不到。另外，有谁能不能帮助解答A为什么不够好呀？
先谢了！
真的很谢谢cwang的整理! 真的很清楚。 Form24-15 (考古p.53#15) The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen. 答案是 (B)
但有一个整理规则以外的题目，此题是than当关系代词，且than前面省略temple。
不晓得各位怎么解读和归纳？
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
哪里有关于这题的解释啊？大全987里面好像没有。
对啊，大全里面没有这题啊，答案对吗？
真N人
再次顶楼主和携隐的OG46的解释
几天发现一个反例:
OG 46中标准答案没有补出谓语动词, 但句子却是完整的SVO形式.
但这个总结还是很不错的. 提醒大家注意对于effectiveness的问题, 不要太执拗.
总结: 没有歧义的情况下, 就可以省略助动词 (OG46: those已明确指代了主语)
比较状语得时候也需要补充主谓吧，不能直接加时间状语。
例如： 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
(E) in making the construction industry's economic health much more robust than it was five years ago
真的很谢谢cwang的整理! 真的很清楚。 Form24-15 (考古p.53#15) The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen. 答案是 (B)
但有一个整理规则以外的题目，此题是than当关系代词，且than前面省略temple。
不晓得各位怎么解读和归纳？
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
真的很谢谢cwang的整理! 真的很清楚。
但有一个整理规则以外的题目，此题是than当关系代词，且than前面省略temple。
不晓得各位怎么解读和归纳？
Form24-15 (考古p.53#15)
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
真的很谢谢cwang的整理! 真的很清楚。
但有一个整理规则以外的题目，此题是than当关系代词，且than前面省略temple。
不晓得各位怎么解读和归纳？
Form24-15 (考古p.53#15)
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
很怪的题目, 好像是usual对啊! e.g. He arrived late as usual.
and, why E is incorrect either? 这道题目太难了, 求教!
刚考完GMAT，VABAL44，受惠于CD很久，也希望对后人能栽点树，我想就我对比较的认识写点东西。我把OG上所有的比较都总结了一下，发现ETS结比较是有家规的，看似花样百出，实际是有章可循的，看下题
OG19
请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheta does.(主语比较，Rice 与wheat比）
意义：米有高质蛋白质，麦没有。
Rice has protein of higher quality than of lower quality(介宾比较，of higher 与 of lower比）
意义：米有高质蛋白质而非低质蛋白质
Rice has protein of higher quality than that in wheat(宾语比较，protein 与protein(that指代)比
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的蛋白质比麦中蛋白质质量高
意义：米中的高质蛋白质比糖多。
Rice has protein of higher quality than usual/everbfore/1000 years ago/people expected(状语比较）
意义：米比通常/经往/多年前/人们预测/的蛋白质质量要高。
下面我们谈比较之庖丁解牛
对主谓宾全的句型
主语比较： A do sth than B do.（AB为对等名词，加do是为了显示这是一个可以发出动作的名词，因而确定是主语，进而确定是主语对比）
介宾比较 A do sth of C1 by D1 than of C2 by D2.（C1C2，D1D2对等名词）
宾语比较 A do C1 than C2.(C1C2为对等名词）
状语比较A do sth than usual/everbefore/people expected(直接加状语）
ETS就这几下子，原则就是清楚地指示什么跟什么比。
按照这个原理，对下一种句型只有主谓，没有宾语的句子，因为没有宾语，只可能有主语比较，因而不需要重复do来确认这是一个可发出动作的主语，所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。
AS族的比较大同小异，as 可单独引导比较，也可以复合成as many as, as hard as 等形式，但ETS宗旨不变，如
Sand road costs twice as many to build as to manintain(类似于介宾比较）
Sand road costs twice as many to build as stone road do(主语比较,）
Sand road costs the govement twice as many to build as the residents.(宾语比较）
ETS考过AS比较的习惯用法（不受上述限制，如下）
AS poor as they are, they can ont afford a car.
They have 800million students, as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子，AS在这里的作用更类似连词，连接一个主句和一个从句）
注意AS有时不表比较的如as you word hard, you will pass the exam.表原因了。
There be 句型等同于一般的主谓宾俱全的句型
OG89
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)为什么这里是were不是was啊？
There is one PC for every 32 pupils in American four time as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four time as many as for school teachers.(介宾比交)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
以上的钢领代入EST的OG几乎都成立，在我这次实战中也成立，但GWD中有一题是例外的，也就是说并没有放之四海而皆准的真理，清楚，简洁，合理才是ETS的最高宗旨。
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)为什么这里是were不是was啊？
问一句，now和four years ago比较，不是状语比较吗？请大家指教。
问一句，now和four years ago比较，不是状语比较吗？请大家指教。
顶。请DX指教。而且状语比较的时候，主谓语多数要补出。是不是呀？
lz总结得真好！
有个问题：主系表结构的句子比较应该与主谓（没有宾语）类的相同吧，不需要系动词。
OG中的例子：
OG-118
The question of whether to divest themselves of stock in companies that do business in South Africa is particularly troublesome for the nation's 116 private Black colleges because their economic bases
are often more fragile than
those of most predominantly White colleges.
OG-137
In 1982 the median income for married-couple families with a wage-earning wife was
$9,000 more than
that for families in which only the husbandthan was employed.
补充一下刚才关于主系表的：如果前后时态相同，可以省略系动词。
如果时态不同，则需要补出。如：
The economy of Florida is
more diversified than
it
was ten years ago.
好贴
好帖!!
lz好棒!
lz总结得真好！
有个问题：主系表结构的句子比较应该与主谓（没有宾语）类的相同吧，不需要系动词。
OG中的例子：
OG-118
The question of whether to divest themselves of stock in companies that do business in South Africa is particularly troublesome for the nation's 116 private Black colleges because their economic bases
are often more fragile than
those of most predominantly White colleges.
OG-137
In 1982 the median income for married-couple families with a wage-earning wife was
$9,000 more than
that for families in which only the husbandthan was employed.
I agree. 比较的基本原则也是清晰，简洁
主系表结构因为前面只有一个名词成分，as/than后如果是名词还是能很清晰的指出什么和什么比较，所以is/are可以省。但省略的前提是比较前后的时态一致，如果是过去和现在比较，动词依然不能省略。
太有才了，感动中
希望大家在这道题上讨论实践一下：
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
答案是E According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines at speeds much higher than are currently possible. 请教大家，这是主语比较吗？ 应该是将来的CUSTOMERS和现在的CUSTOMERS，但它在句中是宾语？？！！ 如果有补出省略部分，是否应该是 at speeds much higher than they are currently possible.
答案是E
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines at speeds much higher than are currently possible.
请教大家，这是主语比较吗？ 应该是将来的CUSTOMERS和现在的CUSTOMERS，但它在句中是宾语？？！！
如果有补出省略部分，是否应该是 at speeds much higher than they are currently possible.
怎麽搞的，请指点迷津！
应该是对前后speeds的比较
醍醐灌顶啊
希望大家在这道题上讨论实践一下：
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
答案是E According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines at speeds much higher than are currently possible. 请教大家，这是主语比较吗？ 应该是将来的CUSTOMERS和现在的CUSTOMERS，但它在句中是宾语？？！！ 如果有补出省略部分，是否应该是 at speeds much higher than they are currently possible.
答案是E
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines at speeds much higher than are currently possible.
请教大家，这是主语比较吗？ 应该是将来的CUSTOMERS和现在的CUSTOMERS，但它在句中是宾语？？！！
如果有补出省略部分，是否应该是 at speeds much higher than they are currently possible.
答案是E
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines at speeds much higher than are currently possible.
请教大家，这是主语比较吗？ 应该是将来的CUSTOMERS和现在的CUSTOMERS，但它在句中是宾语？？！！
如果有补出省略部分，是否应该是 at speeds much higher than they are currently possible.
搞不明白，请哪位NN指点迷津
谢谢回复！！！
搞不明白，请哪位NN指点迷津
谢谢回复！！！
这个肯定不是比较主语customers, 应该是比较speed, current possible (speeds)
不过这个我也做不对....
我的理解是:
at speeds (which would be) much higher than (they) are currently posible.
speeds 和 speeds 比, 后面一个speeds 被省略了.
供讨论
这篇帖子基本上解决了：
Than后面的成分应该不应该加动词的问题。
cwang关于比较的总结也是我至今见过最好的一个.
cwang总结里的意思是说如果一个句子没有宾语, 谓语动词就不必补出. 但如果主, 谓, 宾齐全, 就应该补出. 但OG46是个主, 谓, 宾齐全的句子, 之所以没有补出谓语动词是因为不会引起歧义.
我想进一步补充一下我对这个问题的理解：
为什么在OG10_46题中，than后面不加谓语动词也不会有歧义？
...they require less medication and gain weight more quickly than those raised in confinement.
those raised in confinement 中的 those 显然与主句中的they是对应的，因为those前面require的宾语medication是单数名词，those不能指代medication，只能指they。
正因为如此，此句than后面即使不加谓语动词，也能确定无疑的表示主语比较。
仍然对上面提到的三道问题不能理解，请牛人解答：
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
(E) in making the construction industry's economic health much more robust than it was five years ago
答案C
Form24-15 (MingLiU","serif"; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial;">考古p.53#15)
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
A. with speeds much higher than is
B. with speeds that are much higher than are
C.at much higher speeds as are
D.at much higher speeds than that
E. at speeds much higher than are
答案是E
谢谢拉
补充一下刚才关于主系表的：如果前后时态相同，可以省略系动词。
如果时态不同，则需要补出。如：
The economy of Florida is
more diversified than
it
was ten years ago.
总结的好啊。抛玉引玉。
这么好的贴绝对不能让他沉下去了...
hao
仍然对上面提到的三道问题不能理解，请牛人解答：
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
(E) in making the construction industry's economic health much more robust than it was five years ago
答案C
Form24-15 (MingLiU","serif"; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial;">考古p.53#15)
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
A. with speeds much higher than is
B. with speeds that are much higher than are
C.at much higher speeds as are
D.at much higher speeds than that
E. at speeds much higher than are
答案是E
仍然对上面提到的三道问题不能理解，请牛人解答
顶
仍然对上面提到的三道问题不能理解，请牛人解答：
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
(E) in making the construction industry's economic health much more robust than it was five years ago
答案C
这题的原因应该跟上面提到的时态不一致同理吧
补充一下刚才关于主系表的：如果前后时态相同，可以省略系动词。
如果时态不同，则需要补出。如：
The economy of Florida is more diversified than it was ten years ago.
Form24-15 (MingLiU","serif"; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial;">考古p.53#15)
The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
A) usual
B) is usual
C) has been usual
D) one usually is
E) it is usual
答案是 (B)
这个题补足is清晰的表达了要比较的内容是Parthenon跟其他for a Doric的temple。如果不补足is，读起来有种感觉就是P自己变大了，larger than usual。
She is more pretty than usual for an office lady 体会这个歧义.
According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.
A. with speeds much higher than is
B. with speeds that are much higher than are
C.at much higher speeds as are
D.at much higher speeds than that
E. at speeds much higher than are
答案是E
我觉得这个题比较的是customer。
在crowkiller的[原创]比较结构总结http://forum.chasedream.com/dispbbs.asp?boardid=23&id=263606
提到C.介宾短语的比较 ==》这种比较需要和宾语比较进行区分，一定要补出介词。其原因是介宾短语中的宾语和整句的宾语在句中成分不同，需要强调出是那些在比较，消除歧义。另一个是这个介宾短语不能是句子主语的修饰成分比较，如果是，则需要变换成主语比较形式。（下面的OG200 E选项） 200. Certain pesticides can become ineffective if used repeatedly in the same place: one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.
200. Certain pesticides can become ineffective if used repeatedly in the same place: one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.
E) The finding of much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in those that are free of such chemicals suggests one reason certain pesticides can become ineffective if used repeatedly in the same place.
句中at speed也是做修饰成分。
所以两句比较的是customer的状态，补足be
OPEN TO DISCUSS...很好，很清楚。顶～
up
确实将G里面大部分题目归纳了，但还是有许多特例的，或者说未完善的地方
刚考完GMAT，VABAL44，受惠于CD很久，也希望对后人能栽点树，我想就我对比较的认识写点东西。我把OG上所有的比较都总结了一下，发现ETS结比较是有家规的，看似花样百出，实际是有章可循的，看下题
OG19
请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheta does.(主语比较，Rice 与wheat比）
意义：米有高质蛋白质，麦没有。
Rice has protein of higher quality than of lower quality(介宾比较，of higher 与 of lower比）
意义：米有高质蛋白质而非低质蛋白质
Rice has protein of higher quality than that in wheat(宾语比较，protein 与protein(that指代)比
Rice has protein of higher quality than sugur.（宾语比较，protein 与sugar比）
意义：米中的蛋白质比麦中蛋白质质量高
意义：米中的高质蛋白质比糖多。
Rice has protein of higher quality than usual/everbfore/1000 years ago/people expected(状语比较）
意义：米比通常/经往/多年前/人们预测/的蛋白质质量要高。
下面我们谈比较之庖丁解牛
对主谓宾全的句型
主语比较： A do sth than B do.（AB为对等名词，加do是为了显示这是一个可以发出动作的名词，因而确定是主语，进而确定是主语对比）
介宾比较 A do sth of C1 by D1 than of C2 by D2.（C1C2，D1D2对等名词）
宾语比较 A do C1 than C2.(C1C2为对等名词）
状语比较A do sth than usual/everbefore/people expected(直接加状语）
ETS就这几下子，原则就是清楚地指示什么跟什么比。
按照这个原理，对下一种句型只有主谓，没有宾语的句子，因为没有宾语，只可能有主语比较，因而不需要重复do来确认这是一个可发出动作的主语，所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。
AS族的比较大同小异，as 可单独引导比较，也可以复合成as many as, as hard as 等形式，但ETS宗旨不变，如
Sand road costs twice as many to build as to manintain(类似于介宾比较）
Sand road costs twice as many to build as stone road do(主语比较,）
Sand road costs the govement twice as many to build as the residents.(宾语比较）
ETS考过AS比较的习惯用法（不受上述限制，如下）
AS poor as they are, they can ont afford a car.
They have 800million students, as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子，AS在这里的作用更类似连词，连接一个主句和一个从句）
注意AS有时不表比较的如as you word hard, you will pass the exam.表原因了。
There be 句型等同于一般的主谓宾俱全的句型
OG89
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)
There is one PC for every 32 pupils in American four time as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four time as many as for school teachers.(介宾比交)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
以上的钢领代入EST的OG几乎都成立，在我这次实战中也成立，但GWD中有一题是例外的，也就是说并没有放之四海而皆准的真理，清楚，简洁，合理才是ETS的最高宗旨。
ETS考过AS比较的习惯用法（不受上述限制，如下）
AS poor as they are, they can ont afford a car.
They have 800million students, as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子，AS在这里的作用更类似连词，连接一个主句和一个从句）
关于以上蓝色标注的这点，我不确定，OG10-177的解释里有这样一段话：
In B, the subject of the as ... as clause (young recruits) should be the subject of the main clause as well (e.g., they). Furthermore, main clauses following concessive clauses must express a contrasting notion: for example, "As ill-prepared as they are, they nevertheless find good jobs
说明as...as...作为连词，引导一个分句，应该和另一个分句是转折关系。
25. (25704-!-item-!-188;#058&002607)
There is a widespread belief in the United States and Western Europe that young people have a smaller commitment to work and a career than their parents and grandparents and that the source of the change lies in the collapse of the "work ethic."
(A) a smaller commitment to work and a career than their parents and grandparents
(B) less of a commitment to work and a career than their parents and grandparents
(C) a smaller commitment to work and a career than that of their parents and grandparents
(D) less of a commitment to work and a career than their parents and grandparents had
(E) a lessening of the commitment to work and a career that their parents and grandparents had
答案是选D，但是C为什么不对？不能看做是宾语比较吗？或者说C在如下情况下成立：
There is ... that commitment to work and a career of young people is smaller than that of their parents and grandparents?
Thanks.
25. (25704-!-item-!-188;#058&002607)
There is a widespread belief in the United States and Western Europe that young people have a smaller commitment to work and a career than their parents and grandparents and that the source of the change lies in the collapse of the "work ethic."
(A) a smaller commitment to work and a career than their parents and grandparents
(B) less of a commitment to work and a career than their parents and grandparents
(C) a smaller commitment to work and a career than that of their parents and grandparents
(D) less of a commitment to work and a career than their parents and grandparents had
(E) a lessening of the commitment to work and a career that their parents and grandparents had
答案是选D，但是C为什么不对？不能看做是宾语比较吗？或者说C在如下情况下成立：
There is ... that commitment to work and a career of young people is smaller than that of their parents and grandparents?
Thanks.
关于你的例子，我觉得在最后加上was比较合理，例子中的结构很清晰，是主语比较，但是前后时态不同，系动词应该补出，原因如前讨论。
open to discuss
很感谢！正好最近愁这个~
They have 800million students, as many as have enrolled in our school.
这个不太理解,我最近也碰到这样的题...这个是什么和什么平行呢?我总觉得要在as many as后加上those who,但OG说加上之后太wordy...偶实在不太懂呀,哪位牛牛分析下?
我想进一步补充一下我对这个问题的理解：
为什么在OG10_46题中，than后面不加谓语动词也不会有歧义？
...they require less medication and gain weight more quickly than those raised in confinement.
those raised in confinement 中的 those 显然与主句中的they是对应的，因为those前面require的宾语medication是单数名词，those不能指代medication，只能指they。
正因为如此，此句than后面即使不加谓语动词，也能确定无疑的表示主语比较。
严重同意！此处无需补出谓语动词的原因是those已经很好的消除了歧义。这题特殊就特殊在those作为一个复数代词，明确指代calves，而不能指代medication，也就是只能和they比较。
补出谓语动词是为了消除歧义，既然已经用另一种方式消除了歧义，自然无需补出动词了。
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