天净沙 秋 
                                                                                                                                         白朴
                                                                                                                                 孤村落日残霞，
                                                                                                                                 轻烟老树寒鸦，
                                                                                                                                  一点飞鸿影下。     
                                                                                                                                 青山绿水，
                                                                                                                                 百草红叶黄花。

                                                                                    （唐·白居易）
                                                                  孤山寺北贾亭西，水面初平云脚低。
                                                                 几处早莺争暖树，谁家新燕啄春泥。
                                                                 乱花渐欲迷人眼，浅草才能没马蹄。
                                                                 最爱湖东行不足，绿杨阴里白沙堤。

送崔九

裴迪

归山深浅去，须尽丘壑美。

莫学武陵人，暂游桃源里。

诗歌后两句运用《桃花源记》典故，表达了诗人怎样的情感？结合诗句和《桃花源记》内容，简要分析。

次北固山下

王湾

客路青山外，行舟绿水前。

潮平两岸阔，风正一帆悬。

海日生残夜，江春入旧年。

乡书何处达？归雁洛阳边。