阅读下面古诗。
                                                                                        夏日南亭怀辛大

                                                                                          【唐】孟浩然
                                                                                山光忽西落，池月渐东上。
                                                                                散发乘夕凉，开轩卧闲敞。
                                                                                荷风送香气，竹露滴清响。
                                                                                欲取鸣琴弹，恨无知音赏。
                                                                                感此怀故人，中宵劳梦想。
       【注释】①山光：山上的阳光。②池月：池边的月色。③开轩：开窗。④卧闲敞：躺在幽静宽敞的地方。⑤恨：遗憾。⑥感此：有感于此。⑦终宵：整夜。⑧劳：苦于。