happen v “发生”没有被动语态 ,主语是物,强调某事发生的偶然性
sth. happen to sb. 某事发生在某人身上 What happened to you?=What was wrong with him?
sb. happen to do sth. 某人碰巧做某事 She happened (be) out when we called.
take place 发生,指事情有计划有安排地发生 The sports meeting took place in our school last week.
realize v 意识到realize + n she didn’t realize her mistake
realize +从句 I didn’t realize that you were so unhappy.
Robert Allen is now over 50 , but he was a school pupil at that time.罗柏特。艾伦现在已经 50 多岁了,但那时候他还只是一名小学生