关于GRE阅读真题之消防车事故率解析

　　今天小编给大家带来了关于GRE阅读真题“消防车事故率”解析 ，希望对大家的英语阅读水平有所帮助，预祝大家考试高分通过，生活愉快。不要轻易把梦想寄托在某个人身上，也别太在乎身旁的冷语，未来是自己的。
　　The traditional color of firetrucks is red, but in cities that have introduced yellow trucks into their fleets, the rate of traffic accidents per mile driven among these trucks has been far lower than the rate among red trucks. Some critics of the innovation have questioned whether this difference should be attributed to color, given that the yellow trucks were generally newer than the red trucks with which they were compared. But this criticism can be dismissed. Certainly, the mere difference in accident rates is not decisive evidence. The decisive fact is that the rates differed significantly only in the hours around dawn and dusk. At these hours, the visibility of yellow is known to be better than that of red.
　　In the argument given, the two highlighted portions play which of the following roles?
　　A. The first is a statement of the position the argument as a whole opposes; the second is a statement of the position it defends.
　　B. The first is a claim that the argument as a whole calls into question; the second denies the rationale presented by some critics of that claim.

　　C. The first is a claim that the argument as a whole calls into question; the second points out an error of reasoning made by defenders of that claim.
　　D. The first is the position defended in the argument; the second is an intermediate conclusion drawn to support that position.
　　E. The first is the position defended in the argument; the second concedes a point to critics of that position.
　　按照正常做题思路，这个题逻辑链还是比较明显。但是具体选答案的时候首先要注意，**高亮部分不是所在句子整句。如果高亮是整句的话ABC的前半部分表达还算合理，因为后面有But转折。但是高亮的是被质疑者质疑的那个观点，而But转折是在否定质疑者，所以被高亮部分反而是作者要支持的，作者觉得事故差异的原因跟颜色就是有关系。所以ABC不对，只能选DE里面的。D和E的区别就是后半部分，这个比较好判断，一般出现certainly,sure, of course之类的，基本都是在让步（concede或者acknowledge）。所以选E。
　　这个题其实只看第二个高亮句的作用也能直接出答案。不过就是险了点。