become的各种时态:
过去式: became
过去分词: become
现在分词: becoming
become在英语中的基本含义是“变得”、“变成”等:
1、 用作连系动词，其后可接名词、形容词、过去分词等作表语。
例如：
How do you become an artist?你如何成为一个艺术家
The world has become too crowded.世界已经变得太拥挤。
He became famous when he was only a child.他在小时候就出名了。
2、 有时可用于进行时态。
例如：
It’s becoming a serious problem.它正在成为一个严重的问题。
It’s becoming fashionable to have short hair again.现在又开始流行剪短发了。
It’s becoming dangerous to go out alone at night.夜间独自外出已经越来越危险了。
3、 用于天气、社会的发展变化时，可以与get互换。
例如：
Our country is getting / becoming stronger and stronger.我们的国家日益强大。
It’s becoming / getting warmer and warmer.天气变得越来越暖和了。
4、 “What becomes of...”为惯用表达，意为“……后来变成怎样”
例如：
What became of him?他后来怎样了
Tell us what became of the missing ship.告诉我们那艘失踪的船后来怎样了
