become的过去式和过去分词分别为became和become。become可作及物动词，中文含义为“适合”、“适宜”、“相称”、“变成”、“发生”；还可作不及物动词，中文含义为“变为”、“成为”、“变得”。
become的基本含义及用法介绍
become作为动词，意为开始变得;变成;适合(某人);与…相称;使(人)显得漂亮;使好看。例句有：
1、It was becoming more and more difficult to live on his salary.
他越来越难以靠他的工资维持生计了。
2、It soon became apparent that no one was going to come.
很快就很清楚，没人会来。
3、Such behaviour did not become her.
这种举止与她的身份不相称。
4、Short hair really becomes you.
你理短发的确很帅。
5、I first became interested in Islam while I was doing my nursing training...
我在接受护理培训的时候开始对伊斯兰教产生了兴趣。
6、She thought constantly about her family; she might never know what had become of them...
她一直挂念着家人；她也许再也听不到他们的消息了。
7、I became nervous when I heard my parents would come to watch the performance.
当我听说我的父母要来看演出时，我就开始变得紧张了起来。
8、Some children undergo a complete transformation when they become teenagers.
一些儿童进入少年期会完全变成另一个人。
9、The white one is the most becoming shirt you tried till now.
刚才你试穿的几件衬衫，只有白色那件最适合你了。
10、The necklace you are wearing is very becoming to you.
你戴的那串项链非常适合你。
