精选优质文档-倾情为你奉上2016年6月英语四级仔细阅读优先复习(训练题)Newspapers often tell us of floods in some parts of the United States.Nearly every year on the great central drainages heavy rains and melting snow cause the waters to pour out the mountains and plains, to turn brooks into torrents, and to swell quiet streams into wild uncontrolled rivers. From Cairo to New Orleans, and from Pittsburgh to Paducah, the cry River rising! is a familiar yet fearful voice. . . When the rivers sometimes become too hig