“Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.”

A．after

B．unless

C．until

D．when

阅读下面一首宋词，然后回答问题。（8分）

虞美人 秦观

碧桃天上栽和露，不是凡花数。乱山深处水萦迥，可惜一枝如画为谁开？

轻寒细雨情何限，不道春难管。为君沉醉又何妨，只怕酒醒时候断人肠。

【注】秦观，字少游，一字太虚，号淮海居士，“苏门四学士”之一，一生多次被贬。

（1）“碧桃天上栽和露，不是凡花数”，句中的“碧桃”和“凡花”指什么人？这里运用了什么修辞方法？（4分）

答：                                                               

（2）“乱山深处水萦迥，可惜一枝如画为谁开”寄寓了词人什么样的情感？请简要分析。（4分）

答：