GWD 7-39,帮忙看一下，以前的讨论没定论耶 - ChaseDream

Seldom more that 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected the Hudson River at Albany to the Great Lakes at Buffalo, providing the port of New York City with a direct water link to the heartland of the North American continent.

答案给的是B。网上讨论的不是太清楚。个人认为a 较好。记得XDF的石林说过英文的否定句（GMAT 中）一定要有明确的否定词如NO。NOT ，而SELDOM，HARDLY是不属于这个范围的。因此本题用OR应该对吧。看以前的帖子，为什么说A的BUT不对称呀？

B中用or错。因为or要么用在否定句中，要么表示选择关系（包括程度不同）。否定句必须有否定词：no, not。seldom 只是有否定意思的词并不是否定词，所以不是否定句这里应该用and。

D 有3个错误：The Erie Canal was seldom more than 40 feet wide or 12 feet deep and it ran 363 miles across the rugged wilderness of upstate New York, which connected

1. was seldom ...and it ran 构成runing sentence; 2. or 错；3. which 从句修饰 NewYork 错：

A中最主要的错误是逻辑主语搭配问题，独立修饰成分位于句首，主句一定是以被修饰对象开始且是主句的主语。

且这里偶觉得是选择关系，是指深度或宽度上达到某一程度。所以用or。

同意你说的逻辑主语搭配问题。但是OR 应该不是选择关系，不然意思上好象说不准确。我想只能理解为SELDOM 后可以加OR 的。

哎，有哪为NN可以吧XDF和GWD判断标准差异列出来呀？？都快蒙了呀，这样考试会翘辫子的。。。

以下是引用sarah81在2004-11-17 11:04:00的发言：

Q39:

Seldom more than 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected

Seldom more than 40 feet wide or 12 feet deep but running 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected

It was seldom more than 40 feet wide and 12 feet deep, and ran 363 miles across the rugged wilderness of upstate New York, but the Erie Canal, connecting

The Erie Canal was seldom more than 40 feet wide or 12 feet deep and it ran 363 miles across the rugged wilderness of upstate New York, which connected

The Erie Canal, seldom more than 40 feet wide and 12 feet deep, but running 363 miles across the rugged wilderness of upstate New York, connecting

下面是whitesand MM的意见。我赞同了。

39题

这是啥理论？无论是肯定句还是否定句，or出来选择的意思，还有其他得意思吗？另外，“or要么用在否定句中，要么表示选择关系”是啥意思？我的理解是or要么用在否定句中，要么就是肯定句，而在肯定句中表示选择得意思。

那or在否定句中是啥意思？请教。

我觉得B的答案很清晰啊～

C,E 没有谓语动词，句子结构不完整，也错

D 有3个错误：The Erie Canal was seldom more than 40 feet wide or 12 feet deep and it ran 363 miles across the rugged wilderness of upstate New York, which connected

1. was seldom ...and it ran 构成runing sentence; 2. or 错；3. which 从句修饰 NewYork 错：

所以我选A

B是对的。or用的很好。从逻辑上讲，这条运河很少有地方宽40或者深12，没有什么不对。A的意思是这条运河很少有地方宽40且深12，限定条件更多一些而已。

A的主要错误是but it ran 363 miles across the rugged wilderness of upstate New York与the Erie Canal 不平行。

Seldom more than 40 feet wide or 12 feet deep but running 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected

作者把這兩個地方列為併列(一為形容詞片語、一為分詞片語當形容詞片語用)

现在做改错都要踏踏实实，不要迷信XX人的理论或者什么公理，读懂句子才是根本。

the phrase seldom..deep is the half of a modifier that describes the ECanal.however ,because a comma incorrectly follows deep ,this phrase appears to be the entire modifier,which must agree with the noun or pronoun that immediately follow it.不能修饰ＢＵＴ，而且ＩＴ没有所指，并且ＩＴ在修饰短语后面不符合语法和逻辑结构，

Ｂ用ＢＵＴ连接两个修饰短语都用来修饰Ｅ　ＣＡＮＡＬ，Ｅ　ＣＡＮＡＬ是句子得主语，需要动词connectd

主句 the Erie Canal connected the Hudson River at Albany to the Great Lakes at Buffalo。。。。。。

修饰成分可以去掉。再看一下这个句子，主从句之间不存在but的逻辑关系。

一开始我也认为B不是很好，两个修饰成分在一起awkward.但是后来发现

Seldom more than 40 feet wide or 12 feet deep but running 363 miles across the rugged wilderness of upstate New York其实是一个修饰成分！逻辑意思也很合理。