题目内容

1．No one knows when such a custom first _____．（　　）
A．came into powerB．came into beingC．came trueD．came out

分析 没有人知道这样的习俗最初是怎样形成的．

解答 答案B．
came into power掌权，上台；came into being 形成；came true 实现；came out出来，出版．根据宾语从句的主语"such a custom"可知句子表达的意思是"没有人知道这样的习俗最初是怎样形成的．"，故答案选B．

点评 本题考查动词短语的辨析．英语中有的词组没有捷径，只有平时加强记忆，要注意区别，记忆的时候不能忽视，这是常见的命题方式．平时要加强记忆，做题时，别忘了要结合上下文句意判断．

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