tailieunhanh - Master the Gre 2010 - Part 40

Peterson's Master the Gre 2010 - Part book includes 9 full-length practice tests , thorough reviews of every section on the exam, and expert tips and strategies from a test prep pro. GRE (Graduage Record Examination General Test) is a commercially-run standardized test and an admission requirement for many graduate schools in USA and other English-speaking countries. GRE can earn you between 200-800 points. | Chapter 14 Reading Comprehension 373 7. Considered in context the final sentence of the passage suggests which of the following A Some animal and plant species are more harmful than others. B Determining the importance of an entry pathway is inherently subjective. C It is more important to detect the entry of harmful species than harmless ones. D Determining entry pathways is especially important for species detected in large numbers. E Quantitative analysis is of little use in determining a species entry pathways. The correct answer is B . The last sentence reveals the author s point By posing this rhetorical question the author is providing an example of how difficult it is to determine the relative importance of entry pathways for the reason that the analysis is somewhat subjective not quantifiable . Choice A is unsupported. The passage provides no information about the comparative harmfulness of various species so to assert that the final sentence supports any such comparison makes no sense. Choice C distorts the final sentence in which the author raises a question comparing the impact of a few very harmful species with the impact of many less harmful species. Choice D provides an answer to the author s question yet the author s rhetorical point is that we cannot easily answer this question. Choice E exaggerates the paragraph s central idea which is that quantitative evaluation of the importance of species entry pathways is problematic not that it is of little use. In formulating an Inference question GRE test designers will often include a runner-up answer choice in which the inference is somewhat more speculative than that of the best choice. Here s a passage excerpt on a new topic along with an inference question that incorporates this wrong-answer ploy. Scientists have long claimed that in order to flourish and progress their discipline requires freedom from ideological and geographic boundaries including the freedom to share new scientific knowledge with .