雷哥网GMAT-【OG20-P811-892题】Scientists have recently found evidence that black_OG17新题

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【OG20-P811-892题】

Scientists have recently found evidence that black holes—regions of space in which matter is so concentrated and the pull of gravity so powerful that nothing, not even light, can emerge from them—probably exist at the core of nearly all galaxies and the mass of each black hole is proportional to its host galaxy.

A

exist at the core of nearly all galaxies and the mass of each black hole is proportional to
分析A选项
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B

exist at the core of nearly all galaxies and that the mass of each black hole is proportional to that of
分析B选项
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C

exist at the core of nearly all galaxies, and that the mass of each black hole is proportional to
分析C选项
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D

exists at the core of nearly all galaxies, and that the mass of each black hole is proportional to that of
分析D选项
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E

exists at the core of nearly all galaxies and the mass of each black hole is proportional to that of
分析E选项
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当前版本由吃着香蕉开跑车更新于2021-05-21 16:32:17 感谢由吃着香蕉开跑车对此题目的解答所做出的贡献。

选B
that同位语从句的主语是black holes，DE选项，主谓单复数不一致；
AC选项，比较对象不可比；B选项，正确。

题目讨论（10条评论）

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ziqi

that the mass of each black hole不要忽视了the mass of

0 0 回复 2022-04-06 15:02:46
贾思敏

易错点： 1、Scientists have recently found evidence that black holes—blabla—exist...and that..两个同位语从句，共同来解释evidence，所以and后要加that 2、B和C之间的排除对比： the mass of each black hole is proportional to its host galaxy，应该是each black hole的mass和its host galaxy的mass进行比较，所以要用that of its host galaxy

0 0 回复 2021-09-17 16:51:40
William(GMAT 750+)

注意宾语从句的平行

0 0 回复 2021-03-30 19:51:30

715007m

先看原题结构，有两个破折号，中间是插入语，对balck holes进行解释说明的，并且这部分没有被划线，所以可以略过不看；句子主干是主谓宾结构，scientist have found evidence, 科学家发现了证据；后面紧跟that同位语从句，对evidence进行解释说明（什么样的证据）。

分析that之后的部分，主语是back holes，所以谓语要用exist，排除D，E。继续读，后面有个and，之后是另一个不同的内容，说明是两个同位语从句，共同来解释evidence，所以and后面需要加that。继续看后面的部分，有个比较的部分，A is proportioonal to B, 应该是黑洞的质量和 galaxy的质量成比例，前面是 mass of back holes，后面需要同样的结构，需要有that（代指mass）, that of its host galaxy.

A, 第二个同位语从句用 and 连接，前面没有that；后面的对比部分不平行，缺that of

B, 正确

C，and 前面加了逗号，不影响，不是主要的问题。主要是后面的对比部分不平行，同A

D，E 主谓不一致。

0 回复 2020-06-23 00:41:21

cindyGMAT330

错在了C，有逗号连接后面的 and that (类似which) 限定修饰直接前置名词， galaxy，造成了语义错误。应该是 evidence that... and that... 平行

1 1 回复 2019-11-19 09:35:54
浅井777

正确选项B中and that the mass ...是另一个evidence，所以要与第一个that black holes-...-的evidence做平行，故此处加了that！

1 1 回复 2019-02-12 12:16:07
EscapeFromFate

主语black holes，直接删DE，C and用法错误，ab对比，必须加that指代the mass否则无意义，the mass of each blackhole不能直接跟its host galaxy对比

0 0 回复 2019-01-18 16:30:40
woody要700回复EscapeFromFate

请问C的and哪里错了

0 0 回复 2019-01-24 11:41:16
嘉仓佑措

败在了双破折号不会处理，哎

0 1 回复 2018-12-28 20:34:20
AUCHUI

OG A This version of the sentence does not provide the relative pronoun that to provide parallel structure for presenting the two things scientific evidence reveals about black holes. This leaves it somewhat unclear whether the final clause is intended to convey part of what the scientists discovered or to express a claim that the writer is making independently of the scientists’ discovery. The sentence illogically compares mass to galaxy

0 0 回复 2018-12-12 17:35:33
考到770不是梦

common and that 和直接and that有什么区别吗？

0 0 回复 2018-07-10 22:59:57