逻辑汇总贴：http://forum.chasedream.com/GMAT_CR/thread-580862-1-1.html 阅读姊妹篇：http://forum.chasedream.com/GMAT_RC/thread-562296-1-1.html 1. 狒狒logic 倒数第一题 In a new police program, automobile owners in some neighborhoods whose cars are not normally driven between 1 A.M. and 5 A.M. can display a special decal in the cars’ windows and authorize police to stop the cars during those hours to check the drivers’ licenses. The theft rate for cars bearing such decals is much lower than had been usual for cars in those neighborhoods. If it is concluded from the statements above that automobile theft has been reduced by the program, which one of the following would be most important to answer in evaluating that conclusion?
A: Are owners who are cautious enough to join the program taking other special measures to protect their cars against theft?
2. 狒狒logic 倒数第二题 The more television children watch, the less competent they are in mathematical knowledge. More than a third of children in the United States watch television for more than five hours a day; in South Korea the figure is only 7 percent. But whereas less than 15 percent of children in the United States understand advanced measurement and geometric concepts, 40 percent of South Korean children are competent in these areas. Therefore, if United States children are to do well in mathematics, they must watch less television. Which one of the following is an assumption upon in advanced measurement and geometric concepts than are South Korean children?
A: The instruction in advanced measurement and geometric concepts available to children in the United States is not substantially worse than that available to South Korean children. 3. 狒狒logic 倒数第三题 Nature constantly adjusts the atmospheric carbon level. An increase in the level causes the atmosphere to hold more heat, which causes more water to evaporate from the oceans, which causes increased rain. Rain washes some carbon from the air into the oceans, where it eventually becomes part of the seabed. A decrease in atmosphere carbon causes decreased evaporation from the oceans, which cause less rain, and thus less carbon is washed into the oceans. Yet some environmentalists worry that burning fossil fuels may raise atmospheric carbon to a dangerous level. It is true that a sustained increase would threaten human life. But the environmentalists should relax---nature will continually adjust the carbon level. Which one of the following, if true, would most weaken the argument in the passage? A: The natural adjustment process, which occurs over millions of years, allow wide fluctuations in the carbon level in the short term 说实话，我现在觉得这个答案不是很好。不过在原题里，这个答案应该算是最相关的。它的着眼点是"over past millions of years"，以此说明“那个时候没有人存在”，从而说明人类这么干会有影响。但是，我能想到的方法还是去说明"Nature cannot withstand such fluctuation." 4. 逻辑大全6-19 In January there was a large drop in the number of new houses sold, because interest rates for mortgages were falling and many consumers were waiting to see how low the rates would go. This large sales drop was accompanied by a sharp rise in the average price of new houses sold. Which of the following, if true, best explains the sharp rise in the average price of new houses? A: Sales of higher-priced houses were unaffected by the sales drop because their purchasers have fewer constraints limiting the total amount they pay.
5. 这貌似是4个月前被我定义为“精选的恶心AWA中的一篇”= =，我们来受下虐。。 (18)The following is an excerpt from a memo written by the head of a governmental department. “Neither stronger ethics regulations nor stronger enforcement mechanisms are necessary to ensure ethical behavior by companies doing business with this department. We already have a code of ethics that companies have agreed to follow it. We also know that the code is relevant to the current business environment because it was approved within the last year, and in direct response to specific violations committed by companies with which we were then working- not in abstract anticipation of potential violations, as so many such codes are.”
35s Premise: The car can be checked from 1-5am by the police Conclusion: The theft rate will be decreased. Evaluation: 还没想好怎么表达，不过应该是这个program的不完整性有关。。看了答案，除了这个，可不可以说what if the crime rates happened mostly at 11-1am? or Can the police check this routinely?
28s Premise: Korean children watch less TV and they are smarter. Conclusion: US children should watch less TV in order to be more competent. Assumption: 问题没读懂，是不是说美国和南韩孩子之间的advanced study的比较?如果是，我觉得是不是说书本的material是一样的之类的，这样才能用取非方法来weaken conclusion
50s Premise: The carbon level is affected by nature Conclusion: So the scientists don't have to worry if the carbon level will cause human life in danger. Weaken: The nature would produce special particles when the air meets enough fuel and finally increase the carbon level.
30s Premise: The NO. of new houses have been sold was declined. But the new houses average price goes up. Paradox: The new houses which have been sold are located in the areas with more potentiality of values.
AWA: Premise: We have approved a code to enforce the ethic of a company. Conclusion: New enforcement and regulation can't ensure the ethic of a company at the end. Reasoning: The approved code of ethic regulation can't apply to all companies in all situations since each company has its own character. It's hard to monitor if all companies follow the code in all situations even though they agree to follow it. It's better to have a supplementary code upon this approved code when each company deals with different depts.
1. 51s The cars which are not normally driven between 1am to 5am can show a special decal to prevent from theft. The theft rate of cars doing so in the city is lower than that without such method in neiborhoods. Evaluation: 是不是这个city本来的car theft rate就要比其他的city低。
2.34s The children in U.S. spend more time watching TV than those in Korea. And More children in Korea can master advanced maths than those in the U.S. Conclusion: IF the children wants to do well in maths, they need to watch less TV. Assumption： 韩国小孩用美国小孩要来看电视的时间来学数学了。
3. 40s Carbon Dioxide可以经过自然环境的循环而形成一个平衡。 所以，Nature will adjust to the new emission level cauzed by Fossil Fuel. Weaken: 方向是fossil fuel造成中间环节出现了什么不同，无法形成平衡。
4.29s House sales rate dropped, while new houses prices rised. And the comsumers are waiting and seeing the rate to be lower. solve the discrepancy: some other factors to cauze the sharply rising price
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发表于 2011-8-13 22:38:19
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发表于 2011-8-14 09:58:07
