阅读下面诗歌，完成题目。
                                                                                                                                              示秬秸^①
                                                                                                                                        【北宋】张耒
                                                                   北邻卖饼儿，每五鼓未旦，即绕街呼卖，虽大寒烈风不废，而时略不少差也。因为作诗，且有所警，示秬，秸。
                                                                                            城头月落霜如雪，楼头五更声欲绝。捧盘出户歌一声，市楼东西人未行。
                                                                                             北风吹衣射我饼，不忧衣单忧饼冷。业无高卑志当坚，男儿有求安得闲。
        [注释]①秬（jù）秸(jiē)：张耒（lěi）二子张秬、张秸。张耒，北宋著名文学家，曾官任太常寺少卿。