阅读下面这首诗，完成小题。
                                                                                                                    江 上
                                                                                                                  王安石
                                                                                              江北秋阴一半开，晚云含雨却低徊^①。
                                                                                              青山缭绕^②疑无路，忽见千帆隐映来。
【注】① 徊：徘徊。②缭绕：环绕。