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In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.
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分析B选项
分析C选项
分析D选项
分析E选项
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原句句子结构：the number of chirps rise and fall， and they can in fact serve as an approximate thermometer.当前版本由 唱跳rap篮球 更新于2021-11-26 13:38:20 感谢由 唱跳rap篮球 对此题目的解答所做出的贡献。
原句表达逻辑语义：蟋蟀种类中，每分钟（被雄性用来吸引雌性动物的）叽叽喳喳的数量（随着环境温度）上升或者下降；他们也能作为温度计；
A. The number of做主语，谓语应该用单数；and they这个they指代有问题；
B. Which就近修饰temperature，语义不符；
C.The number of做主语，谓语应该用单数；改变句间关系，原句是并列，这里变成了伴随状语；
D. And it 这里的it就是指代前面的the number of； 正确
E.改变句间关系，原句是并列，这里变成了伴随状语；
考点分析：简洁性+主谓一致
选项分析：A：for doing表目的不如to do不定式来得简洁，rise and fall和the number 主谓不一致
B：for doing错误同A，which错误地就近修饰temperature导致语义错误
C：主谓不一致同A，in fact 和 possibly 语义矛盾，不可能是事实上又有可能
D：correct，to do不定式较为简洁，rises and falls保持了主谓一致
E：in fact 和 possibly 错误同C
hints：for doing表目的不如to do简洁，which一般指代就近名词，注意是否产生歧义
499685skw
used to do, 直接排除ABC，DE对比，D表达更简洁
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2022-10-04 22:12:23
499685skw回复499685skw
it 指代the number正确，因为前面也解释了是根据temperature rise and fall的。
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2022-10-04 22:13:26
499685skw回复499685skw
通过前后语义可以了解到是前面句子的主语the number serve as thermometer, 所以serving不对。另外单看serving，修饰模糊（前面有太多动词），不如D选项表达的直接。
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2022-10-05 22:08:02
wordy要你吗
thermometer 是温度计
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2022-09-07 10:18:12
wordy要你吗回复wordy要你吗
E改变了句间关系
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2022-09-07 10:19:12
彦均小孩
①in fact和possibly不能同时出现 ②SVO,and S'V'O'句式中（用and/but/or等连词连接起来的两个句子中，第二句的主语S'优先默认指代第一句主语S，如果不能指代，才尝试指代第一句宾语O，本句中it可以直接指代the number of chirps）
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2022-08-22 16:33:28
680461elv
E选项in fact和possibly不能一起用！会造成语义矛盾
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2022-08-18 08:58:23
landy720
在DE之间犹豫，没看到原句就是and的并列关系 所以D更优选 仔细分析D选项，看到it可能觉得是风险选项，但其实it是and引导的并列结构中第二个句子的主语，所以可以refer到第一个句子的主语the number of chirps per minute,指代正确而且unambiguously E 也不是错误，相比于D不是最优选 首先少了原句中and的并列关系；其次in fact表示确定，possibly又表示不确定 "in fact" (="definitely") "possibly" (≠"definitely) 自相矛盾 所以错误
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2022-07-06 14:59:55
iamChloe
D it指代的是什么？ the number of chirps吗 ？ 可以这样指代吗
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2021-09-14 10:28:38
266458lqhr回复iamChloe
就是这个
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2021-10-10 11:31:47
landy720回复iamChloe
Ron说过 If the pronoun is parallel to the intended noun, GMAT will usually tolerate pronoun ambiguity.在这道题中，it是and引导的并列结构中第二个句子的主语，那么我们就可以refer到第一个句子的主语，即the number of chirps，发现就是我们想要指代的，那么指代正确，unambiguously
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2022-07-06 14:57:16
KleinLan
原句中they can in fact serve as an approximate thermometer表达的意思就是they can，E选项中的possibly 改变了句意。
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2021-09-14 09:33:28
Audreyrey
in fact 和 possibly矛盾。the number of chirps虫鸣的数量
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2021-01-11 20:25:56
173127itpo
这个解释不太对吧，是因为前面这个现象，所以 the number of chirps 可以做温度计，这个没毛病，comma ving（引导结果状语，前面主语的action--导致了后面的），是因为in fact和possible排除吧
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2020-09-20 15:33:45
173127itpo
ron说了，这个考点就是in fact 和 possibly矛盾---分词也是可以的
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2020-09-20 15:31:14
173127itpo回复173127itpo
补充一点，其实d和e的语义就不同了，想表达的是 the number of chirps can（这是是既定事实）做体温计，而不是一种推断（possibly)
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2020-09-20 15:36:38
871642qyrg
B为什么不对呀 改变原句重心这个解释我不是很理解呀
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2020-09-10 11:35:37
315843q回复871642qyrg
which 修饰 temperature
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2020-09-11 17:53:20
康村冲冲冲
Manhattan: "It can in fact serve as an approximate thermometer" is also an independent clause - it can stand alone as a sentence. Also, "it" refers to the number of chirps per minute, which is appropriately singular. I like D better here. E introduces the word "possibly" which has a different meaning than "it can serve." The "it can" means it is, really, while "possibly" means it might. Not the same thing. And the original sentence uses "can" so I want to preserve the meaning. Also the construction "in fact possibly serving" is awkward.
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2020-08-31 17:45:30
科婆
E哪里不好啊，有小伙伴可以详解嘛？
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2020-02-29 14:43:21
447840ldwc回复科婆
possibly与approximate语意重复，wordy
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2020-08-30 21:02:00
750！！！！！！！
E：①serving 修饰的主语是 the number of chirps; ②in fact和possibly 造成累赘修饰，并且语意模糊；
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2020-02-15 18:54:53
；svkdnvl
1、rise 和fall的主语是"the number of..."，应该为单数，排除A和C 2、B中which的指代“surrounding temperature”不正确，周围的温度不能是体温计。 3、剩下D和E，我觉得整个句子的主要意思应该是：C的数量会随着周围的温度而变化，所以C可以当做体温计，这里的it指代c。“,serving”的用法是修饰前面的整个句子，但是不能说前面这种现象或者这件事情能作为体温计，这样不合理。
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2019-12-22 08:34:00
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