come sb's way 的意思

根据美国英语习语词典，come sb’s way 是习语，意思是： To be experienced by someone；happen to sb，即表示：为某人所经历、降临到某人头上、出现在某人面前。从语法上看，这样用的 come 仍是不及物动词（其后的 sb's way 可看作是状语），但既然是习语，最好就不要过细地分析其结构了。相关例句如：

He took whatever came his way. 无论什么事落到他的头上，他都认了。

The promotion for which he had long been angling eventually came his way. 他长期以来想方设法地谋求晋级，终于如愿以偿了。

He stored away everything for future use—every scrap of information that came his way.他把什么都存起来供将来之用，包括他能得到的每一点消息。

你的三个句子的意思

Some good luck came his way. 他碰上了好运气。

They gladly accepted whatever money came their way. 不管是什么样的钱，他们都欣然接受（即来者不拒）。

The instructor put off driving every student who came his way. 导师暂时没有把来找他的每一个学生都逼得太严。