[解析]
(1)B.细节理解题.根据文章第一段 Accordingly,newspapers were read almost only by rich people in politics or the trades可知在19世纪30年代以前,美国的报纸是不吸引人的;故选B.
(2)C.推理判断题.根据文章第二段 The trend,then,was toward the "penny paper"﹣a term referring to papers made widely available to the public可知街头销售对报纸意味着他们可以有更多的读者;故选C.
(3)B.细节理解题.根据文章第二段 The trend,then,was toward the "penny paper"﹣a term referring to papers made widely available to the public可知新趋势的目标是普通人;故选B.
(4)A.推理判断题.根据文章最后一段This new trend of newspapers for "the man on the street" did not begin well可知关于便士报的诞生这是一个艰难的过程;故选A