题目内容：

Students in our schoor are encouraged to ( )more activities after class in order to broaden their konwledge
1 attend 2 join 3 take part 4 particpate in

优质解答

4. 参与,参加…… take part in 或者 particpate in
join 一般是参加什么团体,组织.如：join the army.参军
attend 一般是参加会议,演讲等. attend a lecture. attend a meeting .