1.take place / happen / occur / come about / break out 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。 happen作“发生、碰巧”解，一般用于偶然或突发性事件。 occur作“发生、想到、突然想起”解，其意义相当于happen。 come about表示“发生、产生”，多指事情已经发生了，但还不知道为什么，常用于疑问句和否定句。 break out意思为“发生、爆发”，常指战争、灾难、疾病、火灾或者争吵等事件的发生，也可以表示突然大声叫喊等。 【练习】根据句子的意思翻译或按要求填词。 1). Great changes have _________ (发生) in our hometown during the past ten years. 2). _____________________ (我突然想起) I saw him on my way home yesterday. 3). I _________ (碰巧) to see your sister crying on my way to school yesterday. I was in such a hurry that I had no time to ask what had happened ________ (介词) her? 4). When the Second World War _________ (爆发), Tom was only a newborn infant. 5). I’ ll never understand how it _________ (发生) that you were late three times a week. 6). A big earthquake _________ (发生) in the south of China last year. 答案：1). taken place 2). It occurred to me that 3). happened; to 4). broke out 5). came about 6). occurred / happened
