Instead of becoming a doctor, however, he became a successful writer of detective stories. I once spent an uncomfortable weekend which I shall never forget at his house. George showed me to the guestroom which, he said, was rarely used.

　　10.Instead of becoming a doctor, however, he became a successful writer of detective stories.

　　然而，他后来没当上医生，却成了一位成功的侦探小说作家。

　　语言点:句子结构分析:however是转折连词，连接两个意思相反的句子。Instead of becoming a doctor作方式状语，放在句首是为了强调。

　　11.I once spent an uncomfortable weekend which I shall never forget at his house.

　　有一次，我在他家里度周末，过得很不愉快。这事我永远不会忘记。

　　语言点:句子结构分析:which引导定语从句，修饰weekend,说明“周末过得怎么样”。

　　12.George showed me to the guestroom which, he said, was rarely used.

　　乔治把我领进客房，说这间很少使用。

　　语言点:句子结构分析:which引导定语从句，修饰guestroom。He said作插入语。