【每日逻辑练习第二季【2-3】

Feelalive

谢谢可爱卤煮小猪猪

Elisha728

9'28''
ADABD

Elisha728

4, With a record number of new companies starting up in Derderia and with previously established companies adding many jobs, a record number of new jobs were created last year in the Derderian economy.  This year, previously established companies will not be adding as many new jobs overall as such companies added last year.  Therefore, unless a record number of companies start up this year, Derderia will not break its record for new jobs created.
Which of the following is an assumption on which the argument relies?
(A) Each year, new companies starting up create more new jobs overall than do previously established companies.
-already stated in the passage “previously established companies will not be adding as many new jobs overall as such companies added last year.”

(B) Companies established last year will not add a greater number of jobs overall this year than they did last year
-already stated in the passage “previously established companies will not be adding as many new jobs overall as such companies added last year.”
(C) This year, the new companies starting up will not provide substantially more jobs per company than did new companies last year.

After negaton:

This year, the new companies starting up will provide substantially more jobs per company than did new companies last year.

If this is the case, Derderia will not break its record for new jobs created even without a record number of companies start up this year. Thus, the conclusion is overruled. so this is the correct assumption on which conclusion is based
(D) This year, the overall number of jobs created by previously established companies will be less than the overall number of jobs lost at those companies.
-already stated in the passage “previously established companies will not be adding as many new jobs overall as such companies added last year.”

(E) The number of jobs created in the Derderian economy last year was substantially larger than the number of jobs lost last year. Irrelevant

For assumption questions, use negation.

Elisha728

17, At present the Hollywood Restaurant has only standard-height tables.  However, many customers come to watch the celebrities who frequent the Hollywood, and they would prefer tall tables with stools because such seating would afford a better view of the celebrities.  Moreover, diners seated on stools typically do not stay as long as diners seated at standard-height tables.  Therefore, if the Hollywood replaced some of its seating with high tables and stools, its profits would increase.
The argument is vulnerable to criticism on the grounds that it gives reason to believe that it is likely that
(A) some celebrities come to the Hollywood to be seen, and so might choose to sit at the tall tables if they were available. Irrelevant
(B) the price of meals ordered by celebrities dining at the Hollywood compensates for the longer time, if any, they spend lingering over their meals. Irrlevant
(C) a customer of the Hollywood who would choose to sit at a tall table would be an exception to the generalization about lingering
First of all, understand the meaning of this option. An exception to the generalization about lingering= even customer who chooses to sit at a tall table may linger longer time. In this way, the profits will not increase.

(D) a restaurant's customers who spend less time at their meals typically order less expensive meals than those who remain at their meals longer.
Even if customers order less expensive means than those who remain at their meals longer, more rounds of customers may compensate for the price difference. So one can not tell whether the profit will increase or decrease.
(E) with enough tall tables to accommodate all the Hollywood's customers interested in such seating, there would be no view except of other tall tables. Irrelevant

Elisha728

bananazoo 发表于 2011-12-13 00:00
呀，发现最后一题，没有加粗……sorry~明天有电脑有电了就来加~囧………对了，大家17题是怎么做的？为什么 ...

17, At present the Hollywood Restaurant has only standard-height tables.  However, many customers come to watch the celebrities who frequent the Hollywood, and they would prefer tall tables with stools because such seating would afford a better view of the celebrities.  Moreover, diners seated on stools typically do not stay as long as diners seated at standard-height tables.  Therefore, if the Hollywood replaced some of its seating with high tables and stools, its profits would increase.
The argument is vulnerable to criticism on the grounds that it gives reason to believe that it is likely that
(A) some celebrities come to the Hollywood to be seen, and so might choose to sit at the tall tables if they were available. Irrelevant
(B) the price of meals ordered by celebrities dining at the Hollywood compensates for the longer time, if any, they spend lingering over their meals. Irrlevant
(C) a customer of the Hollywood who would choose to sit at a tall table would be an exception to the generalization about lingering
First of all, understand the meaning of this option. An exception to the generalization about lingering= even customer who chooses to sit at a tall table may linger longer time. In this way, the profits will not increase.

(D) a restaurant's customers who spend less time at their meals typically order less expensive meals than those who remain at their meals longer.
Even if customers order less expensive means than those who remain at their meals longer, more rounds of customers may compensate for the price difference. So one can not tell whether the profit will increase or decrease.
(E) with enough tall tables to accommodate all the Hollywood's customers interested in such seating, there would be no view except of other tall tables. Irrelevant

sakurasong

DEACB

4.
B: A populations declines aroung the world
P1zone layer depleted throughtout the last 50 ans
P2:Ozone blocks UV-B, which can damage genes
P3:Because of A's features,they are vulnerable to UV-B.
P4:Eggs lack the protection.
C:The primary cause of declining A is the deplation of ozone layer

A-Irrelevant


17.
B: The H has SH tables.
P1:C come to watch the celebrties who frequent the H and they prefer tall tables which offers a better view.
P2iners seated on stools do not stay as long as SH.
C: H gains more if it replaced some of its SH.


C-strengthen

lyrsilvia

E CACB
1. 31'
P:  amphibians lack hair, hide, or feathers to shield them, they are particularly vulnerable to UV-B radiation. their gelatinous eggs lack the protection of leathery or hard shells.
C:  primary cause of the declining amphibian population is the depletion of the ozone layer.
STRENGTHEN EXCEPT: the sun light is not the core cause
答案：E
(A) Of the various types of radiation blocked by atmospheric ozone, UV-B is the only type that can damage genes.----------it clearly suggest the UV-B is the cause of genes damage. strengthenCORRECT
(B) Amphibian populations are declining far more rapidly than are the populations of nonamphibian species whose tissues and eggs have more natural protection from UV-B.-----------also suggest the UV-B is to be blame
(C) Atmospheric ozone has been significantly depleted above all the areas of the world in which amphibian populations are declining.------------strengthen the atmospheric depleted is the cause
(D) The natural habitat of amphibians has not become smaller over the past century.-------------strengthen. this statement clearly shows the habitat is not changed, thus the decline is caused by UV-B
(E) Amphibian populations have declined continuously for the last 50 years.--------CORRECT. this statement just state the evidence. even though the ozone layer has been continuously depleted throughout the last 50 years, the simultaneous relation between the continuous decline and the layer depletion does not guarantee the actual relationship.
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A fails to shed any light on the connection between the ozone depletion and the amphibian population decline. However, Answer E strengthens the argument by showing the decline of the amphibians has mirrored the decline of the ozone layer. 对比AE，E虽然不是百分百支持，像自己分析的一样有漏洞，但是E确实在一定程度上支持了C，而A在第一直觉觉得言他物的情况下，没有注意整体选项的暗含意思对比与整道题无关，误选了啊...
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2. 33'
P: many customers come to watch the celebrities; they would prefer tall tables with stools; diners seated on stools typically do not stay as long as diners seated at standard-height tables
C: replaced some of its seating with high tables and stools, its profits would increase.
WEAKEN: tall tables≠more profits
答案：C
(A) some celebrities come to the Hollywood to be seen, and so might choose to sit at the tall tables if they were available-----------what celebrities choose to do does not matter the profits
(B) the price of meals ordered by celebrities dining at the Hollywood compensates for the longer time, if any, they spend lingering over their meals----------support the more viewer plan
(C) a customer of the Hollywood who would choose to sit at a tall table would be an exception to the generalization about lingering---------------CORRECT. an exception to the generalization about lingering means they would stay longer time, thus stools will not generate reduced stay in restaurant. this means only costs for replacement, but no advantages for profits. profits will not increase.
(D) a restaurant's customers who spend less time at their meals typically order less expensive meals than those who remain at their meals longer------------this statement just not illustrates the plan of replace seating with high tables and stools. even though it slightly prove that high tables and stools may reduce expensive meals orders. But it is possible that time reduced will be compensated by more customers.
(E) with enough tall tables to accommodate all the Hollywood's customers interested in such seating, there would be no view except of other tall tables--------------this just show the infeasibility of the plan. it does not clearly state the core of the problems

3. 25'
P: the only significant economic activity in these areas is small-scale coffee farming, and none of the coffee farmers make enough money to afford the monthly service fees that Calex would have to charge to make a profit
C:  making the service available to these farmers will be profitable.
SUPPORT: other factors that influence the profits may be taken into consideration
答案：A
(A) Currently, Caladian coffee farmers are forced to sell their coffee to local buyers at whatever price those buyers choose to pay because the farmers are unable to remain in contact with outside buyers who generally offer higher prices.----------CORRECT. means the service will enable the price to increase, which will help farmers to pay for the service
(B) In the coastal areas of Caladia where Calex proposes to introduce cellular telephone service, there is currently no fixed-line telephone service because fixed-line companies do not believe that they could recoup their investment.---------------means more cost and less attraction
(C) A cellular telephone company can break even with a considerably smaller number of subscribers than a fixed-line company can, even in areas such as the Caladian coast, where there is no difficult terrain to drive up the costs of installing fixed lines.-------------the comparison between cellular company and the fixed-line company is irrelevant
(D) Calex bases its monthly fees for cellular telephone service in a given region partly on the cost of installing the necessary equipment to provide the service there.---------------how C bases its monthly fees is irrelevant
(E) Calex has for years made a profit on cellular telephone service in Caladia's capital city, which is not far from the coastal region.------------how C makes profits form other city does not affect the profits from Caladia

4. 21'
P:  previously established companies will not be adding as many new jobs overall as such companies added last year
C: unless a record number of companies start up this year, Derderia will not break its record for new jobs created.
ASSUMPTION: the newly started company will not create more job than last year. the number of company≠the number of job
答案：C
(A) Each year, new companies starting up create more new jobs overall than do previously established companies.---------------if this true, even the number of new companies is less than last year, the jobs they created will be more than last year. Seriously undermine the conclusion
(B) Companies established last year will not add a greater number of jobs overall this year than they did last year.--------------this is just the premise stated in the question
(C) This year, the new companies starting up will not provide substantially more jobs per company than did new companies last year.-------------CORRECT. if new companies are providing more jobs per company than did last year, there will be more job created this year.
(D) This year, the overall number of jobs created by previously established companies will be less than the overall number of jobs lost at those companies.-------------we did not consider the jobs lost
(E) The number of jobs created in the Derderian economy last year was substantially larger than the number of jobs lost last year.--------------we did not consider the jobs lost

5. 43'
P: Pro-Tect cannot reduce the number of car-theft policies it carries, so it cannot protect itself against continued large payouts that way. Pro-Tect has decided to offer a discount to holders of car-theft policies whose cars have antitheft devices.  Many policyholders will respond to the discount by installing such devices, since the amount of the discount will within two years typically more than cover the cost of installation.
C: because cars with antitheft devices are rarely stolen, Pro-Tect's plan is likely to reduce its annual payouts.
BOLDFACE: first: evidence        second: conclusion
答案：B
(A) The first and the second are both evidence offered by the argument as support for its main conclusion.--------the second is not evidence
(B) The first presents a problem a response to which the argument assesses; the second is the judgment reached by that assessment.------------CORRECT
(C) The first is the position the argument seeks to establish; the second is a judgment the argument uses to support that position.---------------the first is not a position the argument seeks to establish
(D) The first is a development that the argument seeks to explain; the second is a prediction the argument makes in support of the explanation it offers.------------the first is not to explain
(E) The first presents a development whose likely outcome is at issue in the argument; the second is a judgment the argument uses in support of its conclusion about that outcome.------------the second is just the conclusion.

jessie92730

【offer大冒险】 2-3
BG: amphibian population, depletion of ozone layer not coincidentally
P: ozone- UV-B, amphibians vulnerable to UV-B
C: depletion of the ozone layer—declining amphibian population
推测答案：他因
答案：A 无关项

逻辑链：CACE(B)?

Junjuo

逻辑大冒险：Jun
DCABB

w.melhere

可不可以告诉我第二期的题比第一期的难了点...这3天做的都不太好呀... ><
1.2'30 错了。A和D犹豫了很久，还是没找到D为什么不对... 看了解释...
D，其实是加强项，排除他因。Amphibian的减少不是因为栖息地变小（比如因为其他人为原因等）。

2.2'00 嗯 也错。
C：an exception to the generalization about lingering means they would stay longer time, thus stools will not generate reduced stay in restaurant.
而D有一个gap，可能停留时间长的人会order更贵的东西，但是如果停留时间短的人比停留长的人更多，那么即使order比较便宜也会比较多profit。 不能单纯从数量上判断，没有价格无法比较。

3.1'54
4.1'14
5.1'58