Richard 770 逻辑答题讨论

herb.yuan

鱼丸要考700 发表于 2017-10-27 13:41
长难句！！！！！！！！！！！！！！！！！！！！！！！！！！看不懂不是因为单词，你单词都9000了喂，我 ...

嗯嗯！你说的是曼哈顿语法一套的那个吗？红白的？好滴！我最近先把OG给看懂，我现在还是一片混乱阶段，等OG题目思考完我去看看！确实，我也觉得不是词汇是句子的问题，我打算像大R楼主说的那样把读不懂的逻辑阅读选项都粘出来每天看了

herb.yuan

RichardVeritas 发表于 2017-10-28 09:29
GMAT是很有挑战性的考试，每个人的问题也不太一样，不容易有针对性的方法。我这里把帖子里陆续写的和观察同 ...

楼主楼主，我看你多次提到那个GMAt可以分难度做CR的网站，可是我试了几次都好像不行，那个是直接打开任何人都可以用吗？还是有附加条件的啊？

鱼丸要考700

herb.yuan 发表于 2017-10-28 11:30
嗯嗯！你说的是曼哈顿语法一套的那个吗？红白的？好滴！我最近先把OG给看懂，我现在还是一片混乱阶段，等 ...

加油！！！！！

RichardVeritas

贴个题

The Maxilux car company’s design for its new luxury model, the Max 100, included a special design for the tires that was intended to complement the model’s image. The winning bid for supplying these tires was submitted by Rubco. Analysts concluded that the bid would only just cover Rubco’s costs on the tires, but Rubco executives claim that winning the bid will actually make a profit for the company.
Which of the following, if true, most strongly justifies the claim made by Rubco’s executives?

(A) In any Maxilux model, the spare tire is exactly the same make and model as the tires that are mounted on the wheels.
(B) Rubco holds exclusive contracts to supply Maxilux with the tires for a number of other models made by Maxilux.
(C) The production facilities for the Max 100 and those for the tires to be supplied by Rubco are located very near each other.
(D) When people who have purchased a carefully designed luxury automobile need to replace a worn part of it, they almost invariably replace it with a part of exactly the same make and type.
(E) When Maxilux awarded the tire contract to Rubco, the only criterion on which Rubco’s bid was clearly ahead of its competitors’ bids was price.

R论点：
尽管轮胎竞标价格仅够包括成本，这个竞标还是会赚钱
论据/论点就在这一句话里了，比较简单

分析：
如果轮胎竞标价格仅够包括成本，那它怎么赚钱呢？
这里不同有一个部分和全体范畴上的不同。除了轮胎本身以外，还有什么会赚钱的吗？
类似思路看咖啡店那题，以及外包那题。不过这题方向不一样，看到选项D，注意初始竞价和后续更换的区别。初始竞价定了，并不决定后续更换轮胎的价格。这个是R可以自己决定的，所以有赚钱可能。

牛奶泡小猫

麻烦Richard讲讲这道题，谢谢

Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year. This year the plantings are being seriously damaged by bollworms. Bollworms, however, are not necessarily developing resistance to the cotton's insecticide. Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions. So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.

In evaluating the argument, which of the following would it be most useful to establish?
A. Whether corn could be bioengineered to produce the insecticide
B. Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year
C. Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them
D. Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms
E. Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton

RichardVeritas

牛奶泡小猫 发表于 2017-10-31 21:09
麻烦Richard讲讲这道题，谢谢

Plantings of cotton bioengineered to produce its own insecticide agains ...

这题读题难，看着就头痛，尤其我这刚忙完，熬midnight oil，还是打起精神做了一下

我选B
看完提干，作者逻辑链看懂
论点：
去年cotton受bworm伤害不是免疫，而是bworm去年数量特别多
论据：
去年cotton产地种很多玉米，bworm吃玉米(潜意思-bworm长得多)

思路不多，看选项
除B以外，其它不是特别难排除。关键是把每个选项放到作者逻辑链里审核，必须和cotton受bworm伤害产生联系。其它几个选项都没有达到这个标准。GMAT里常有这样难度调节，读题特别费劲时，有时选项比较好排除。这样难度不会太大。
为什么B正确 - 如果作者假设成立，是因为bworm数量大增带来更多伤害，没有免疫力的cotton也会受到多很多的伤害。衡量后者数据可以帮助我们考核前者。

牛奶泡小猫

RichardVeritas 发表于 2017-11-1 12:18
这题读题难，看着就头痛，尤其我这刚忙完，熬midnight oil，还是打起精神做了一下

我选B

谢谢！这道题确实逐个排除选项比较好。

垂钓猫

楼主言简意赅，很精辟

RichardVeritas

谢谢鼓励！
1楼已更新我最新总结的训练方法，有兴趣的同学建议读一下，欢迎讨论

贴个题

Journalist: In physics journals, thenumber of articles reporting the results of experiments involving particleaccelerators was lower last year than it had been in previous years. Several ofthe particle accelerators at major research institutions were out of servicethe year before last for repairs, so it is likely that the low number ofarticles was due to the decline in availability of particle accelerators.

Which of the following, if true, mostseriously undermines the journalist’s argument?

.           (A) Every article based on experiments with particle accelerators that wassubmitted for publication last year actually was published. 


.           (B) The average time scientists must wait for access to a particleaccelerator has declined over the last several years. 


.           (C) The number of physics journals was the same last year as in previousyears. 


.           (D) Particle accelerators can be used for more than one group of experimentsin any given year. 


.           (E) Recent changes in the editorial policies of several physics journalshave decreased the likelihood that articles concerning particle‐acceleratorresearch will be accepted for publication. 


削弱 - 找其它原因

• 一些加速器前年拿去检修
  
• Last year 关于这方面文章减少
  

逻辑链：

加速器减少带来文章减少

E指出一个其它原因。

A有支持作用，否认筛选中的他因

BAverage 不代表去年等用加速器时间没有增加

C无关, the number ofarticles， not, the number ofphysics journals

D即使D成立，可能还是因为加速器减少，带来研究不convenient。是相对比较而言。

RichardVeritas

分享一下

21. Debater: The average amount of overtime per month worked by an employee in the manufacturing division of the Haglut Corporation is 14 hours. Most employees of the Haglut Corporation work in the manufacturing division. Furthermore, the average amount of overtime per month worked by any employee in the company generally does not fluctuate much from month to month. Therefore, each month, most employees of the Haglut Corporation almost certainly work at least some overtime.

The debater’s argument is most vulnerable to criticism on which of these grounds?

(A) It takes for granted that the manufacturing division is a typical division of the corporation with regard to the average amount of overtime its employees work each month.

(B) It takes for granted that if a certain average amount of overtime is worked each month by each employee of the Haglut Corporation, then approximately the same amount of overtime must be worked each month by each employee of the manufacturing division.

(C) It confuses a claim from which the argument’s conclusion about the Haglut Corporation would necessarily follow with a claim that would follow from the argument’s conclusion only with a high degree of probability.

(D) It overlooks the possibility that even if, on average, a certain amount of overtime is worked by the members of some group, many members of that group may work no overtime at all.

(E) It overlooks the possibility that even if most employees of the corporation work some overtime each month, any one corporate employee may, in some months, work no overtime.

D correct

读第一遍没读出太多毛病，仔细再读了一遍。发现有个跳跃：

The average amount of overtime -> most employees... work at least some overtime.

D正是指出这个跳跃

其它指出的不同都不对：

A/B manufacturing vs corporation

E no need for all to work over time - conclusion is most employees