【每日逻辑链练习贴】【逻辑3-2】

superbat28

哎。。几日不见CR，我自责~
不知道post啥了~嗯。那我就从一个我之后发现的一个网站上找吧~
网址是：http://www.platinumgmat.com/practice_gmat_questions/critical_reasoning_questions

另附送网址：http://forum.chasedream.com/GMAT_Math/thread-446348-1-1.html，其实感觉第一个Manhattan和第6个是值得一做的~princeton我没做成，不知道好不好。
但是kaplan和gmat club的模考大大不推荐哈！！！什么玩意- -

但是，kaplan和第6个的Platinumgmat，这两个的CR分项不错~但是kaplan其他我就不知道了。。不过那个Platinumgmat，各个分享其实都不错。但是如果你是按分项做的，模考就没有意义了。因为模考就是从那几个分项选题么~

1. During the past 20 years, computer scientists focused increasingly on starting and running successful businesses. However, since businesses must be profitable, computer scientists must focus on developing products that generate profit. Consequently, computer science has lost its creative aspect.
Which of the following assumptions is most necessary in order for the conclusion above to be drawn from the argument above?
A)  All computer programs must lack creativity in order to be well received.
B)  Some computer scientists entirely disregarded creativity and chose instead to pursue profit.
C)  A program cannot be both creative and profitable.
D)  Computer scientists are obsessed with the profitability of their work.
E)  Non-profit institutions use large amounts of software.

Answer: C

2. After thousands of miles of use, the tread on many bike tires wears down. One common theory about why tires wear down contends that the perpetual friction and heat generated by the contact between the tire and pavement erode the material on the surface of the tire. However, a local scientist who is also an avid cyclist proposed a new theory for why bike tires wear down. This scientist contended that chemicals from the road's composition and chemicals from rain residue wore down the surface of the tire.
Which of the following would best evaluate the veracity of the scientist's proposed theory?

A)  Ride a road bike aggressively through spring rain storms.
B)  lace chemicals from rain water and pavement on a bike's idle tires.
C)  Ascertain whether chemicals from the road's composition also reside within the bike's frame.
D)  Ascertain whether the bike's frame is made of rust-resistant components.
E)  Determine the number of miles that a bike tire can be used on a wet road before wearing down.


Answer: B

3.Automation, the trademark of a modern economy, is essential to maximizing a country's economic production while minimizing its costs. Health care executives want to increase revenues while reducing costs. Consequently, they propose significantly greater automation of health care. Yet, this should be rejected. Radical automation of health care would cause patients to lose trust in the system as the health care they would receive would lack the in-person care that studies show patients desire.
Which of the following expresses the main point of the argument?

A)  Health care should not be heavily automated
B)  atients desire customized in-person care
C)  Trends in the general economy do not apply to the health care industry
D)  Health care executives are becoming too greedy
E)  Due to economic forces, automation of health care is eventually inevitable


Answer: A

4. For years, a considerable number of students on West County High School's track team complained about shin splints (medial tibial syndrome). However, during the most recent season, the number of students who complained about shin splints dropped significantly. School officials assert that this reduction in complaints occurred entirely as a result of the school's decision to build a new running track that provided a softer running surface, which absorbed much of the shock on the knees and shins that occurs when running and causes shin splints.
Which of the following, if true, most severely weakens the school officials' explanation for the decrease in complaints about shin splints?

A)  As a result of West County High School's adoption of better medical staff and new medical scanning devices, many students whose complaints would have been diagnosed in years past as an instance of shin splints are now diagnosed with a different condition.
B)  West County High School built its track after a number of neighboring schools with similar track teams built new tracks and each school saw the number of complaints about shin splints drop.
C)  This past season, members of West County High School's track team received and wore new and highly acclaimed shoes designed to soften the impact of running on the shin and knee.
D)  This past season, the total number of students who complained of pain while running rose.
E)  The maker of the new track claims that on average, complaints about shin splints fall 25% when its tracks are implemented.


Answer: C

我贴的是那个网站最底下的四道题哈~~~过去看是有解释的~但是那个难易评级，我感觉没有参考价值~

corneliaflower

20s
Premise: computer scientists focus on generate profit
Conclusion: computer science lost its creative aspect
C

40s
the tread on many bike tires wears down was caused by the perpetual friction and heat generated by the contact between the tire and pavement erode the material on the surface of the tire
科学家认为：chemicals from the road's composition and chemicals from rain residue wore down the surface of the tire.
此题不会做啊 完全不知道怎么下手  

34s
BG: automation is essential to maximizing a country's economic production and minimizing its costs
Premise: Health care executives greater automation of health care
Conclusion: cause patients to lose trust in the system as the health care they would receive would lack the in-person care that studies show patients desire
A


41s
Premise: the school's decision to build a new running track that provided a softer running surface, which absorbed much of the shock on the knees and shins that occurs when running and causes shin splints.
Conclusion: the number of students who complained about shin splints dropped significantly
C

fox0923

恩，所以短文中提到过的conclusion也可以作为答案，
不像weakening或strengthening文中提到过的premise就不能算答案了

-- by 会员 ykelly123 (2011/9/20 9:10:27)

 嗯嗯 main point题就是对conclusion的重写。捉准conclusion就可以了。

-- by 会员 daisyの小夢想 (2011/9/20 10:28:44)

恩那，同意daisy的~~~

daisyの小夢想

恩，所以短文中提到过的conclusion也可以作为答案，
不像weakening或strengthening文中提到过的premise就不能算答案了

-- by 会员 ykelly123 (2011/9/20 9:10:27)

 嗯嗯 main point题就是对conclusion的重写。捉准conclusion就可以了。

superbat28

噢噢 从今天起一定要坚持每天做逻辑^^ 大家监督我哈！！

-- by 会员 daisyの小夢想 (2011/9/20 10:26:40)

I see, I see~~~haha

daisyの小夢想

噢噢 从今天起一定要坚持每天做逻辑^^ 大家监督我哈！！

daisyの小夢想

1. 22s
The computer scientists have to pursuit bussiness achievements and make profitable products.
Thus the scientists are losing their creative aspects.
Assumption:
making profitable products can not have creative elements.
C

2.48s
Some claim that friction and heat wear down tires.
Others claim that chemicals from the road's composition and chemicals from rain residue wear down tires.
Evaluation:
Will tires wear down on the matter without any road's compostition and chemicals from rain residue?
B

3.47s
BG:some think that to reduce costs, the health care should increase automation.
Premise:If the automation become radical, the public will not trust the system because the health care they received will not studies personal desires.
Conclusion:
The automation should not increase.
Main point: like the conclustion
A

4. 45s
The complaints about SS from students have declined.
The school assumes that it's because they have provided a softer running surface that absorbs much of the SS.
Weaken:
Other factors
C

ykelly123

恩，所以短文中提到过的conclusion也可以作为答案，
不像weakening或strengthening文中提到过的premise就不能算答案了

fox0923

3.Automation, the trademark of a modern economy, is essential to maximizing a country's economic production while minimizing its costs. Health care executives want to increase revenues while reducing costs. Consequently, they propose significantly greater automation of health care. Yet, this should be rejected. Radical automation of health care would cause patients to lose trust in the system as the health care they would receive would lack the in-person care that studies show patients desire.
Which of the following expresses the main point of the argument?

A)  Health care should not be heavily automated
B)  atients desire customized in-person care
C)  Trends in the general economy do not apply to the health care industry
D)  Health care executives are becoming too greedy
E)  Due to economic forces, automation of health care is eventually inevitable


Answer: A
这题为什么选A不选C类？？？

-- by 会员 ykelly123 (2011/9/20 3:28:25)

kelly，我觉得这道题应该是
Premise：automation可以increase revenue while reducing cost。
Premise：automation会降低in-person的treatment，所以让病人对这种新型的system没有信心。
Conclusion：这个automation在health care里不适用。
Main Point：就是应该涵括这两个premise的就对了，A里面说Health care should not be heavily automated，其实就是总结原文结论。而C中Trends in the general economy do not apply to the health care industry，这个只能被看作是个infer吧，对于全文的总结没有起到决定的作用。其中的trends还有general economy并没有提到，文中说的是modern economy，至于这种trend，文中没有详细提出trend到底是指什么。
所以C给我的感觉是比较模糊的，并没有围绕health care和automation这个很局限的话题来说。

ykelly123

3.Automation, the trademark of a modern economy, is essential to maximizing a country's economic production while minimizing its costs. Health care executives want to increase revenues while reducing costs. Consequently, they propose significantly greater automation of health care. Yet, this should be rejected. Radical automation of health care would cause patients to lose trust in the system as the health care they would receive would lack the in-person care that studies show patients desire.
Which of the following expresses the main point of the argument?

A)  Health care should not be heavily automated
B)  atients desire customized in-person care
C)  Trends in the general economy do not apply to the health care industry
D)  Health care executives are becoming too greedy
E)  Due to economic forces, automation of health care is eventually inevitable


Answer: A
这题为什么选A不选C类？？？