OG中两道互相矛盾的答案，求大神解惑！

laughingwind · 发表于 2017-11-30 22:04:00

Prices at the producer level are only 1.3 percent higher now thana year ago and are going down, even though floods in the Midwest and drought inthe south are hurting crops and therefore raised corn and soybeanprices.

(A) than a year ago and are going down, eventhough floods in the Midwest and drought in the south are hurting crops andtherefore raised
(B) than those of a year ago, and are going down, even though floods in theMidwest and drought in the south are hurting crops and therefore raising
(C) than a year ago and are going down, despitefloods in the Midwest and drought in the south, and are hurting crops andtherefore raising
(D) as those of a year ago and are going down, even though floods in theMidwest and drought in the south hurt crops and therefore raise
(E) as they were a year ago and are going down, despite floods in the Midwestand drought in the south, and are hurting crops and therefore raising

答案是B。因为OG解释说选项A中prices are higher now than a year ago之所以不对，是把prices和一个time(a year ago)在比较，所以要加上those of a year ago才对。

然而，请看下题！

Heating-oil prices are expected to be higher this year than lastbecause refiners are paying about $5 a barrel more for crude oil than they were last year.

(A) Heating-oil prices are expected to be higher this year than last because refinersare paying about $5 a barrel more for crude oil than they were

(B) Heating-oil prices are expected to rise higher this year over last becauserefiners pay about $5 a barrel for crude oil more than they did

(C) Expectations are for heating-oil prices to be higher this year than lastyear's because refiners are paying about $5 a barrel for crude oil more thanthey did

(D) It is the expectation that heating-oil prices will be higher this year overlast because refiners are paying about $5 a barrel more for crude oil now thanwhat they were

(E) It is the expected that heating-oil prices will rise higher this year thanlast year's because refiners pay about $5 a barrel for crude oil more than theydid

呵呵，答案就是A。

在下就不明白了。

呵呵哒么么哒 · 发表于 2017-12-1 03:32:33

关于比较对象的省略问题，还是没有统一、绝对正确的rule。你会发现很多OG的题目之间自相矛盾。SC的选项没有绝对的正确，好与不好都是比较出来的，不要质疑问题。

关于第一题先看DE选项，higher....as....这样的表达是错误的，明显可以排除。加不加those of其实都不影响语义，但是我们不清楚GMAC老头具体会如何解读这一问题，所以先留着。C选项despite是除了的意思，在这里意思不通，排除。A选项are hurting和therefore raised不平行，而且明显hurt发生在raise前，时态也不对，排除。其实你看即使省略those of也不影响语义的表达，所以要从其他split下手。有OG的官方解释很多时候是不靠谱的，毕竟他们说什么是对的就是对的。

关于第二题同理，CDE中Expectations are for....., It is the expectation that....., It is the expected that.....这样的用法在SC中几乎没有正确的先例，Heating-oil prices are expected明显更符合日常用法。B中 rise higher....over....也明显错误，要用than。

laughingwind · 发表于 2017-12-1 16:56:39

呵呵哒么么哒发表于 2017-12-1 03:32
关于比较对象的省略问题，还是没有统一、绝对正确的rule。你会发现很多OG的题目之间自相矛盾。SC的选项没有 ...

感谢这位兄台啊，我也跟你一样是靠其他splits来解这两道题，但始终对这个issue充满疑问。这两天又查阅了许多资料，包括官方的解释，得出以下结论，与你共勉。

prices this year are higher than those of last year
prices this year are higher than last year.

以上两者都对。这是RON在一个帖子里面如是说的。OA也是如是证明的。

wild animals have less fat than livestock
wild animals have less fat than do livestock

以上两者也都对。OG官方解释如是说的。

总而言之，无论是是不是比较“同类”，还是补不补出helping verb，都由是否产生歧义决定，在没有歧义的前提下，都是可以的！

呵呵哒么么哒 · 发表于 2017-12-1 21:12:52

EXACTLY.
有个小技巧，就是你要判断是否有没有语病的话，你就把省略的补出来，然后看是不是有问题，如果补出来的部分不是原句的intended meaning，那就是错的。如果补出来符合原意，再看其他的split。

laughingwind · 发表于 2017-12-1 21:20:56

呵呵哒么么哒发表于 2017-12-1 21:12
EXACTLY.
有个小技巧，就是你要判断是否有没有语病的话，你就把省略的补出来，然后看是不是有问题，如果补 ...

多谢多谢！学习了！感谢你的分享哟~！

呵呵哒么么哒 · 发表于 2017-12-1 21:38:55

laughingwind 发表于 2017-12-1 21:20
多谢多谢！学习了！感谢你的分享哟~！

不谢，都是杀G的同道中人

laughingwind · 发表于 2018-5-16 15:38:37

Prices at the producer level are only 1.3 percent higher now than a year ago and are going down, even though floods in the Midwest and drought inthe south are hurting crops and therefore raised corn and soybeanprices.

(A) than a year ago and are going down, eventhough floods in the Midwest and drought in the south are hurting crops andtherefore raised
(B) than those of a year ago, and are going down, even though floods in theMidwest and drought in the south are hurting crops and therefore raising
(C) than a year ago and are going down, despitefloods in the Midwest and drought in the south, and are hurting crops andtherefore raising
(D) as those of a year ago and are going down, even though floods in theMidwest and drought in the south hurt crops and therefore raise
(E) as they were a year ago and are going down, despite floods in the Midwestand drought in the south, and are hurting crops and therefore raising

A 首先are hurting and raised就时态不同，而且不可能先raised，再Hurting。其次than a year比较对象有问题。
B 基本上可以，但是and前面的逗号有点问题，并列谓语应该不需要逗号。
C 最后的and are hurting明显不对
D as不对
E as不对

Heating-oil prices are expected to be higher this year than lastbecause refiners are paying about $5 a barrel more for crude oil than they were last year.

(A) Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were

(B) Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did

(C) Expectations are for heating-oil prices to be higher this year than lastyear's because refiners are paying about $5 a barrel for crude oil more thanthey did

(D) It is the expectation that heating-oil prices will be higher this year overlast because refiners are paying about $5 a barrel more for crude oil now thanwhat they were

(E) It is the expected that heating-oil prices will rise higher this year thanlast year's because refiners pay about $5 a barrel for crude oil more than theydid

A 可以
B over不对
C for heating-oil修饰expectation，应该赶紧跟着
D now和现在进行时重复了
E 没有必要用强调句it is，而且expected to do是固定搭配。再然后pay用原型，有点表示一个常态的意思，好像一直都是这么干的。

总结：这两道题其实并不矛盾，GMAT种，比较对象涉及主语比较，比如: I ate more apples than my brother did. 也涉及状语比较，比如 I ate more apples today than yesterday. 可以直接状语之间比较，但是如果前面没有状语，后面就不能比较另一个状语，比如 I ate more apples than yesterday这就不行。另外，遇到困难的比较时，尽量去找其他的splits，毕竟考场上时间有限，怎么做对才是王道。

OG中两道互相矛盾的答案，求大神解惑！

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