(1)join 表示"加入某一组织、党派或社会团体"，从而成为其成员(become a member of )。join 也可用于"参与某一群体活动"，其后接表示人的群体名词或代词，之后常接"in +名词或动名词"。如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ (kg|U-A$7[T)oFroG]

    He is going to join the army after he finishes middle school. 他打算中学毕业后参军。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ )coWX'Y#HSRDQX5e6FroG]

    Will you come and join us in the game? 你来和我们一起做游戏吗？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ t!lh&mKs.yZFOi4]?%FroG]

    (2)join in 与take part in 都表示"参加"。join in 多指参加正在进行的活动，如竞赛、娱乐、谈话。take part in指参加（参与）某项工作、活动、运动、事件等，并在其中起作用。如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ w`167RMZxJe@vr_FroG]

    They watched the game，and then they were invited to join in it. 他们观看了这场比赛，然后被邀请参加比赛。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ La(w|NM2yyQ=7MJ+FroG]

    China didn't take part in the Iraq War. 中国没有参加伊拉克战争。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ `_ [=Y&wgmmn?IUhFroG]

    提醒："参加会议"是attend the meeting.[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ ]g)x%Itjzo6"u2sE.ZZFroG]

    实战：John________the army in 1986 and________many fightings since then.[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ %Y*y5FnG@B g,OLFroG]

    A. joined；joined            B. took part in；had joined[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ z{k{4Y v1t5Rh5
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    C. Took part in; has joined  D. joined; had taken part in[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ ;6e-+&m- ]7 9 f=FroG]

    Key: D[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ Ho6d+\PP $\2M`Rx(jFroG]