求大神们解惑

XY无解 · 发表于 2016-2-25 08:36:44

1) The growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer's meridian and differing from city to city, and to the establishment of regional times.    A. which was determined by when the sun reached the observer's meridian and differing
   B. which was determined by when the sun reached the observer's meridian and which differed
   C. which were determined by when the sun reached the observer's meridian and differing
   D. determined by when the sun reached the observer's meridian and differed
   E. determined by when the sun reached the observer's meridian and differing

正确答案为E,

请教：
1）排除A，B，C选项的原因是不是因为which指代不清，可指代local times也可以指代abolition；
2）为什么and后面要用differing而不是differed保持时态一致；

同时,
2) The increased popularity and availability of televisions has led to the decline of regional dialects, language variations which originate from diverse ethnic and cultural heritages and perpetuated by geographic isolation.
   A. which originate from diverse ethnic and cultural heritages and perpetuated
   B. that originated from diverse ethnic and cultural heritages and perpetuated
   C. originated from diverse ethnic and cultural heritages and perpetuated
   D. originating from diverse ethnic and cultural heritages and perpetuated
   E. originating from diverse ethnic and cultural heritages and perpetuating
正确答案为D;

请教：C为什么不对

alzn2765 · 发表于 2016-2-25 10:24:26

第一题，读句子的目的是什么？是不是掌握逻辑意思？直接看单词就把题做对了那还是能力考试吗？那是雅思，不是GMAT。
he growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer's meridian and differing from city to city
which句子说的是local times还是abolition（废除）？看看句子内容想想啊。
如果修饰的是local timeS which应该是单数复数？
C错在定语从句和短语并列
DE只有differed和differing的区别：是local times differ from city to city还是local times are differed from city to city? 肯定是前者啊！如果以为是后者，想想differ和different的区别。
两个定语修饰local times，一个是determined一个是differing，用done还是doing取决于动词与被修饰词的逻辑关系是主谓还是动宾。
这题说明你做题还停留在只看单词，不看逻辑意思的层面上。你现在等于把GMAT的SC当成托福题在做。这题考试的时候一定不会出现，只能出现在练习题中，5个选项3个很不一样剩下2个选项只有一处区别，则正确答案必然在这两个选项中。前面3个选项没有迷惑性，等于白写了，直接从5选1变成2选1。GMAC早就不这么出题了。

第二题。这题出的有问题，未划线部分用该是have led to吧？
你这两题犯的错误都是一样的。。。你只看单词不看意思。I rape you 和 I was raped意思有区别吗？
只需要一个DP，一步做出来的题，一般用时30秒，这题考试时的难度不会超过450分，要是10题以后还能见到这种题基本上不会上6。你知道GMAT从400分起吧？

XY无解 · 发表于 2016-2-25 13:53:14

alzn2765 发表于 2016-2-25 10:24
第一题，读句子的目的是什么？是不是掌握逻辑意思？直接看单词就把题做对了那还是能力考试吗？那是雅思，不 ...

谢谢，好像真是老题，07年的。

So you need to pick the second half that's also 'participle acting as adjective'. Try them both:
D) The local times were DIFFERED: uh oh, that doesn't work.
E) The local times were DIFFERING from city to city. That works.

这样判断主谓与动宾是不是有效

狗狗AGO · 发表于 2019-10-24 14:33:38

In A and B, which was (singular) seems to refer to abolition (the nearest singular antecedent), implying that the ABOLITION was determined by when the sun reached the observer’s meridian.
The intended meaning is that LOCAL TIMES were determined by when the sun reached the observer’s meridian.
Eliminate A and B.

In C, which is standing in for local times, implying the following:
local times WERE DETERMINED by when the sun reached the observer’s meridian and [local times] DIFFERING from city to city.
Here, were determined (verb) and differing (adjective) are not parallel.
A conjunction such as and must connect PARALLEL FORMS.
Eliminate C.

D implies the following:
local times DETERMINED BY when the sun reached the observer’s meridian and [local times] DIFFERED from city to city.
Here, determined by (adjective) and differed (verb) are not parallel.
A conjunction such as and must connect PARALLEL FORMS.
Eliminate D.

The correct answer is E.

Only in the OA does and serve to connect parallel forms:
local times DETERMINED BY when the sun reached the observer’s meridian and [local times] DIFFERING from city to city.
Here, determined by and differing both serve as ADJECTIVES modifying local times.

摘自https://www.beatthegmat.com/the-growth-of-the-railroads-led-to-the-abolition-of-local-ti-t220322.html

小小豆豆酱 · 发表于 2020-3-11 20:10:28

感谢alzn NN!!!, 对逻辑意思的理解还是不到位！

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