GWD29-24没人问过

Eliott

up

sunshuai856

That" is not only unnecessary, but wrong.

When a comparison includes "than that of" the word "that" refers to a specific noun. For example, in the following sentence:

The population of California is greater than that of New York.

..."that" stands in for "the population." The sentence can also be written:

The population of California is greater than the population of New York.

In choice C of the item under discussion:

wild
        animals have less total fat than that of livestock fed on grain

...what does "that" stand in for?

The problem with this item is that there is no good answer choice. What is the source? I'm sure it's not a real GMAT question.

The sentence should be something like this:

According to recent studies comparing the nutritional value of meat from wild
        animals and that of meat from domesticated animals, wild
        animals have less total fat than do livestock fed on grain and more fat of a kind thought to be good for cardiac health.

bluebus0831

up

lupisces

以下是引用easy4meeeeee在2007-12-21 0:02:00的发言：

B还有另外一个歧义是与原句想悖的：

fed on grain and more of a kind of fat ,grain 和more of a kind平行，逻辑意思也能理解为----以谷物和脂肪为食的牲口

原句没有使用这个bug，而是用了“, but more of their fat is of a kind...”

这个错误，确实啊，B确实越看越不对

jean1280

up

Liu_leaf

According to recent studies comparing the nutritional value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is good for cardiac health.

 

1. wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is
2. wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
3. wild animals have less total fat than that of livestock fed on grain and have more fat of a kind thought to be
4. total fat of wild animals is less than livestock fed on grain and they have more fat of a kind thought to be
5. total fat is less in wild animals than that of livestock fed on grain and more of their fat is of a kind they think is

C选项的确是没有问题的，是fat和that of livestock在比较（宾语之间的比较，谓语动词不能补出），但是宾语之间的比较意味着主语相同，也就是说C选项的意思变为：wild animals有两种东东，一个fat，一个fat of livestock，只是wild animals有更少的fat比起fat of livestock来说，C选项的确没有歧义，但是逻辑意思完全错误。（切记分清楚主语比较和宾语比较的形式和逻辑上的区别，它们不仅只是补不补出谓语动词的问题）

上面有朋友说道and more of...成分有可能跟grain并列而引起歧义，我认为不会，原因有二：1，如果more of部分和grain平行的话，应该至少补出介词on，变为sth fed on sth and on sth的结构；2，more of一般用在比较结构中，如果要简单的表示更多种类的...的话，更多地使用more kinds of...。

jupiter410

up

tobytao

答案肯定是B

答案肯定是B

B.  Wild animals have less total fat than livestock fed on grain (has) and more (fat) of a kind of fat thought to be.  括号中的为省略部份。

有前辈在以前的讨论贴中提到了应该是该题的出处的文章

http://www.nytimes.com/2002/02/19/health/vital-signs-nutrition-but-what-did-the-cow-have-for-lunch.html?sec=health

Wild animals not only have less total fat than livestock fed on grain, but more of their fat is of a kind (omega-3) thought to be good for cardiac health, and less of a kind (omega-6) that promotes heart disease

很明显，省略掉的两个字是可接受的。

C明显的逻辑错误，wild animals怎么可以和that of the livestock对等呢？

[此贴子已经被作者于2009/10/25 0:31:19编辑过]

moonlolita

楼上确定吗……昏啊，这题目绝对牵涉到比较中的重大问题一堆
就是到底一定要明确主语比较还是宾语比较呢，还是没歧义的时候就不用补助动词了
总之助动词就是为了区分主宾的，但在面临不简洁问题的时候，改成宾语是不是到底就万无一失了，如这题的C，还是说不如用B,干脆简洁点，也不歧义？

sayysong

把句子改简单点。
B) I have 20 more books than you and more of one book thought to be the greatest masterpieces of Shakespeare.
C) I have 20 more books than that of yours and have more of one book thought to be the greatest masterpieces of Shakespeare.
B如果改成
I have 20 more books than you (do || have) and more of one book (are) thought to be the greatest masterpieces of Shakespeare.
这样就毫无疑问选B了。
B的歧义还出现在and后面到底是I have more of one book（做主句的并列宾语）, 还是more of one book（做并列句的主语） are ...
C虽然读起来别扭，但是该有的一个都没少，所以倾向于选C。