小松
                                                                             （唐）杜荀鹤
                                                            自小刺头深草里，而今渐觉出蓬蒿。
                                                            时人不识凌云木，直待凌云始道高。

                                                                                                                       重送裴郎中贬吉州
                                                                                                                              刘长卿
                                                                                                       猿啼客散暮江头，人自伤心水自流。
                                                                                                       同作逐臣君更远，青山万里一孤舟。

村夜

白居易

霜草苍苍虫切切，村南村北行人绝。

独出前门望野田，月明荞麦花如雪。

   在《乡愁》诗中，诗人把“乡愁”比作{#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}、{#blank#}4{#/blank#}，这样写的好处是{#blank#}5{#/blank#}。