3月20日GMAT语法复习：GWD 13复习笔记.

　　在GMAT逻辑复习过程中，GWD非常重要，对于澳际小编特收集整理了GWD中CR部分进行分析讲解，文中的内容带有局限性，仅供参考。内容较多，小编将持续更新。

　　GWD-1-Q3:

　　A product that represents a clear technological advance over competing products can generally command a high price. Because technological advances tend to be quickly surpassed and companies want to make large profits while they still can, many companies charge the greatest price the market will bear when they have such a product. But

　　large profits on the mew product will give competitors a strong incentive to quickly match the mew product’s capabilities. Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.

　　In the argument above, the two portions in boldface play which of the following roles?

　　The first is an assumption that forms the basis for a course of action that the argument criticizes; the second presents the course of action endorsed by the argument.

　　The first is a consideration raised to explain the appeal of a certain strategy; the second is a consideration raised to call into question the wisdom of adopting that strategy.

　　The first is an assumption that has been used to justify a certain strategy; the second is a consideration that is used to cast doubt on that assumption.

　　The first is a consideration raised in support of a strategy the argument endorses; the second presents grounds in support of that consideration.

　　The first is a consideration raised to show that adopting a certain strategy is unlikely to achieve the intended fect; the second is presented to explain the appeal of that strategy.

　　第一步不是假设，AC去掉。有转折，DE去掉。

　　GWD-1-Q13:

　　In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years. Since many local businesses in Florida cater to retirees, this decline is likely to have a noticeably negative economic fect on these businesses.

　　Which of the following, if true, most seriously weakens the argument?

　　Florida attracts more people who move from one state to another when they retire than does any other state.

　　The number of people who move out of Florida to accept employment in other states has increased over the past ten years.

　　There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.

　　The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.

　　The number of people who lt Florida when they retired to live in another state was greater last year than it was ten years ago.

　　错选为A A是无关，D的意思是，即使比例下降了，但绝对数上升了，所以这些生意还是好的。而且是和佛州本身比，不是和其它州比，A错。本题考察numbert and percentage，GMAT的一大类题。

　　GWD-1-Q14:

　　That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia’s coal industry. Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

　　Which of the following can be properly concluded from the statement about coal output per miner in the passage?

　　Which of the following can be properly concluded from the statement about coal output per miner in the passage?

　　Which of the following can be properly concluded from the statement about coal output per miner in the passage?

　　If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia’s total coal production has doubled in that period of time.

　　Any individual Tribnian coal mine that achieved an increase in overall output in the past five years has also experienced an increase in output per miner.

　　If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was.

　　If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine’s overall output has declined or remained constant.

　　In Tribnia the cost of producing a given quantity of coal has declined over the past five years.

　　又是一个数学题：每名矿工的生产率在5年时间内翻了一倍，所以A说如果矿工数量不变，那么总产量肯定是翻了一倍了。

　　总产量=矿工数量x每名矿工的生产率

　　GWD-1-Q15:

　　In parts of South America, vitamin-A diciency is a serious health problem, especially among children. In one region, agriculturists are attempting to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in beta-carotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple主要成份 of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.

　　Which of the following, if true, most strongly supports the prediction that the plan will succeed?

　　Which of the following, if true, most strongly supports the prediction that the plan will succeed?

　　Which of the following, if true, most strongly supports the prediction that the plan will succeed?

　　The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.

　　The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.

　　There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.

　　The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.

　　There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.

　　GWD-1-Q17:

　　The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scale—the seven-note musical scale used in much of Western music since the Renaissance. Musicologists therore hypothesize that the diatonic musical scale was developed and used thousands of years bore it was adopted by Western musicians.

　　Which of the following, if true, most strongly supports the hypothesis?

　　Which of the following, if true, most strongly supports the hypothesis?

　　Which of the following, if true, most strongly supports the hypothesis?

　　Bone flutes were probably the only musical instrument made by Neanderthals.

　　No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.

　　The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.

　　Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.

　　The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale.

　　这个笛子只有四个孔残留，而结论认为这个四孔的骨笛就表明了当时就是7音音阶，则实际上是假定这个骨笛当时应该是至少有7孔的，e支持了这个假设。

　　以上就是3月20日GMAT语法中GWD 13逻辑复习笔记，希望对大家有所帮助，最后祝大家都能考出好成绩。