请问一下几个英语词组的区别：take part in,join与attend

attend 一般指参加比较正式的，大型的场合如attend assembly（也可以指去教堂attend the church）
join一般指入团，入党，入组织 eg join the arm，join a club
take part in一般指参加正在进行的活动，参加者在活动中起一定的作用，可以和join in互换

take part in v. 参与, 参加
take part in a parade
参加游行
take part in the entrance exams for postgraduate schools
考研
To take part in a wrestling match with.
与（某人）一起参加摔跤比赛
To take part in a boxing match with.
与…进行拳击比赛
Will you like to take part in the tender?
贵公司想参加这次投标吗？
To take part in a dangerous or risky undertaking.
玩火，冒险参加危险或冒险的任务
To do or take part in half - heartedly.
玩不认真地做或参加
The ability to take part in a chemical reaction.
活性，活度参加化学反应的性能
Who have been selected to take part in the project?
挑上谁来参与这项计画？
join
vi.
参加, 结合, 加入
vt.
连接, 结合, 参加, 加入
n.
连接, 结合, 接合点
[计] 用子目录名取代驱动器符
join two widths
把两幅料子拼起来
join an expedition
参加远征队[探险队]
to join the Party
入党
join the household brigade
娶亲,成婚,成家
to join people in marriage
联姻
join a club.
成为俱乐部的会员
where the two bones join.
两块骨头的接合处
to join the ends of a rope
把绳子的两头结起来
those who refused to join.
拒绝参加的人
You may certainly join us.
你当然可以加入我们
attend
vt.
出席, 参加, 照顾, 护理, 注意
vi.
专心, 留意
attend school
上学
attend church
去教堂
attend morning service
参加早礼拜
attend a lecture
听讲课
attend a funeral
参加丧礼
promising to attend a meeting
答应参加会议
attend school church ]
上学教堂]
attend classes at a college
在一所大学上课
attend a meeting lecture ]
出席会议听演讲,听课]
attend school [ church ]
上学[教堂]

take part in一般指参加正在进行的活动，参加者在活动中起一定的作用，可以和join in互换如：take part in the party
join一般指入团，入党，入组织join the army /league
attend 一般指参加比较正式的，大型的场合,可做出席解释如attend the meeting

take part in the sports meeting
join sb in sth/join us in the discussion
attend the meeting

很具体，真谢谢