• 2.Armstrong joined the navy in 1949 and served as a pilot for three years. • 阿姆斯特朗于1949年加入美国海军, 他做 了3年飞行员
– join 参加, 主要指加入某个组织(如军队,党派, 社 团, 协会等), 成为其中一员. join us and be one of those • Please __________
people! 请加入我们,成为这些人中的一员!
• join 是短暂性动词,不能跟段时间状语连用.如 跟段时间状语可改成 be in / be a member of … • 1. He joined the army two years ago. = He________________________ for two years. has been = in the army • 2.He_________________________ for two years.
• join in 通常指参加某种活动,尤其指和其他人一起参加某 项活动.我们可以用join sb. in sth/ doing sth. • I hope you’ll all join in the discussion. 我希望你们大家都 参加讨论. • Would you like to join me in a walk? 你愿意和我一起去 散步吗?
• ② flight “(飞机的) 空中航行,航程; 班机;飞行 飞翔 • ③ at the age of 在…岁时,相当于when 引导的时间状语 从句.
• 1.They began to learn English at the age of 8, • =They began to learn English ___________________. 他 when they are 8/eight 们8岁时开始学英语 . years • 2.我对足球感兴趣己经有好几年了. have been interested in football – I ________________________________ for a few years.