店里工作，一直到1942年，也就是他获得化学硕士学位一年以后他才停止糖果店的工作。1942年他成为费城海军造船厂的一名初级化学师，并在那里工作了3年。1948年他获得化学博士学位。第二年他在波士顿大学的医学院任生化教员。1958年他放弃了教学工作成为专职作家。

It was when Asimov was eleven years old that his talent\s\up1(23(23) for writing became obvious\s\up1(24(24). He had told a friend two chapters\s\up1(25(25) of a story he had written\s\up1(26(26). The friend thought he was retelling a story from a book. This really surprised Asimov and from that moment, he started to take himself seriously as\s\up1(27(27) a writer. Asimov began having stories published\s\up1(28(28) in science fiction magazines in 1939. In 1950 he published his first novel and in 1953 his first science book. \s\up1(23(23)talent /'tælənt/ n．天才；特殊能力；才干

\s\up1(24(24)It was when Asimov was eleven years old that ...是强调句型，强调的是时间状语when Asimov was eleven years old。

\s\up1(25(25)chapter /'tʃæptə/ n. (书中的)章；篇；回

\s\up1(26(26)he had written是定语从句，修饰先行词a story。

\s\up1(27(27)take ...as把......当作

\s\up1(28(28)having stories published是have sth. done结构，done作sth.的宾补。

　　[第4段译文],　　早在阿西莫夫11岁的时候，他的写作才华就已经显露出来了。他把他写的小说中的两个章节讲给一个朋友听。这个朋友还以为他是在复述某本书上的故事呢。这使阿西莫夫很惊讶，从那以后，他就开始把自己当做一名真正的作家。1939年，阿西莫夫开始在科幻杂志上发表小说，1950年出版了他的第一部小说，1953年出版了他的第一部科学书籍。