take part in,join,join in,be in区别?

take part in 与 join和join in的区别
take part in, join和join in 都有“参加”的意思，可是它们之间还有很大的区别：
1．take part in
take part in 意为“参加，参与（某事物或某活动，如movement, revolution, meeting, conference, conversation, war等）”。例如：
Switzerland didn't take part in this war. 瑞士没有参加这次战争。
How many countries will take part in the World Cup? 有多少个国家要参加世界杯？
2．join
join意为“参加（某组织），加入（某处任职），参加到某个人群中去，从而成为其中一员”。例如：
She joined a health club. 她参加了一个健身俱乐部。
We both joined the Labor Party. 我们俩都加入了工党。
3．join in
join in sth. / doing sth.意为“参加”，后面接的宾语一般是表示竞赛、娱乐、游戏等活动的名词或V-ing。例如：
Can I join in the game? 我可以参加这个游戏吗？
They all join in singing the song. 他们一起唱这首歌。
练习：用take part in, join和join in的适当形式填空。
1. My brother 　　 　　 the army in 2002.
2. I didn't want to 　　 　　 their argument.
3. May I 　　 　　 the competition?
4. We are playing football. Do you want to 　　 　　?
5. You are welcome to 　　 　　 us.
参考答案：1. joined 2. take part in 3. join in 4. join in 5. join

join +组织、团体，机构 join in the army/club
join sb in doing sth Can i join you in playing football ?
take part in+活动 take part in the Olympic Games
be in 成为 Be in a member of the club

第一组：be in 【这个是延续性的】,就是加入之后如果几年了用【在完成时中有for和since的时候表示加入,只能用be in】如：He has been a soldier for 10 years 他当兵10年了第二组：ake part in,join和join in 都有“...