GRE阅读36套一道题目求分析

GRE阅读36套一道题目求分析
Scholars often fail to see that music played an important
role in the preservation of African culture in the United States.
They correctly note that slavery stripped some cultural
elements from Black people-their political and economic
systems-but they underestimate the significance of music in
sustaining other African cultural values.African music,unlike
the music of some other cultures,was based on a total vision
of life in which music was not an isolated social domain.In
African culture music was pervasi ve,serving not only religion,
but all phases of life,including birth,death,work,and play.
Music,like art in general,was so inextricably a part of African
culture that it became a crucial means of preserving the
culture during and after the dislocations of slavery.
(126 words)
10.In the argument given ,the two highli ghted portions
play which of the following roles?
A The first sentence introduces the topic of the
passage and the last one summarizes the passage.
B The first sentence presents a thesis and the last one
further develops the thesis.
C The first sentence summarizes the main idea of the
passage and the last one paraphrases it literally.
D The first sentence presents a context for the
discussion of the passage and the last one
summari zes the discussion.
E The first sentence presents the negative thesis of the
passage and the last one presents the positive thesis.
但是我并不是很理解.我选的是D,E选项中的negative thesis指的是什么?