這些詞或短語都有“發生”的意思，但用法各不相同，區別如下：
(1). take place 表示“發生、舉行、舉辦”，一般指非偶然性事件的“發生”，即這種事件的發生一定有某種原因或事先的安排，例如：
Great changes have taken place in our hometown during the past ten years.
The Olympic Games of 2008 will take place in Beijing.
(2) .happen作“發生、碰巧”解，一般用於偶然或突發性事件，例如：
What happened to you? (一般不說：What did you happen?)
Maybe something unexpected happened.
I happened to see him on my way home.
= It happened that I saw him on my way home.
(3).break out意思為“發生、爆發”，常指戰爭、災難、疾病或者爭吵等事件的發生，也可以表示突然大聲叫喊等，例如：
Two world wars broke out last century.
A fire broke out in the hospital in the mid-night.
After the flood, diseases broke out here and there
這些詞或短語都有“發生”的意思，但用法各不相同，區別如下：
(1). take place 表示“發生、舉行、舉辦”，一般指非偶然性事件的“發生”，即這種事件的發生一定有某種原因或事先的安排，例如：
Great changes have taken place in our hometown during the past ten years.
The Olympic Games of 2008 will take place in Beijing.
(2) .happen作“發生、碰巧”解，一般用於偶然或突發性事件，例如：
What happened to you? (一般不說：What did you happen?)
Maybe something unexpected happened.
I happened to see him on my way home.
= It happened that I saw him on my way home.
(3).break out意思為“發生、爆發”，常指戰爭、災難、疾病或者爭吵等事件的發生，也可以表示突然大聲叫喊等，例如：
Two world wars broke out last century.
A fire broke out in the hospital in the mid-night.
After the flood, diseases broke out here and there