单选题 The purpose of paragraph 4 is to suggest that

【正确答案】 D
【答案解析】[解析] 本题考查段落大意。回答这道问题需要仔细研读第四段,找出主题句,并且尤其要注意信息词however之后的句子,“However,in a world in which politics is increasingly visual,informed citizenship requires a new set of skills.(在一个政治日趋视觉化的世界里,了解情况的公民需要一套新的技巧。)”他们需要这种技巧的原因,在段首已有交代,“…speaking through it required a changed political style that was more conversational,personal,and visual than that of the old-style stump speech. (通过电视演讲要求比老式政治演讲更多变的政治风格,即要更加口语化、个人化和视觉化)”,面对这些变化,答案[D]“citizens will need to learn how to evaluate visual political images in order to become better informed(公民需要学会如何评价视觉上的政治形象以获得更多的信息)”是正确的。