occur, happen,take place,hold的区别

建议你买本《英语高考必备》，那上边很详细。
happen：指偶然性；发生，碰巧
I happened to be there .
我碰巧在那里。
take place 发生；通常指经过安排的
When will the wedding take place ？
婚礼什么时候举行？
occur只是单纯的发生
The accident occured on sunday .
而hold跟其余几个的不同就在于句子的主语，其他三个的主语是“事”，而hold的主语时人，它的意思是举办。

happen作“发生、碰巧”解,一般用于偶然或突发性事件
what
happened
to
you?
occur作“发生、想到、突然想起”解,表示偶然发生时,其意义相当于happen
what
has
occurred?(=what
has
happened?)
take
place
表示“发生、举行、举办”,一般指非偶然性事件的“发生”,即这种事件的发生一定有某种原因或事先的安排
great
changes
have
taken
place
in
our
hometown
during
the
past
ten
years.

occur、happen和take place当发生讲没区别

但occur有存在的意思

hold则是握住、举办、拥有的意思