英 [bɪˈkʌm]，美 [bɪˈkʌm]
变为，成为，变得：表示情况的开始、发展和结束的变化。例如：The bill will become law next year.（该议案将于明年成为法律。）
适合，适宜，相称：指与某人或某物相配，显得好看或合适。例如：Short hair really becomes you.（你理短发的确很帅。）
（与...）相当，同...相称：表示与某种身份、地位等相匹配。例如：Such behaviour did not become her.（这种举止与她的身份不相称。）
第三人称单数：becomes
过去式：became
过去分词：become
现在分词：becoming
用作系动词：意思是“成为，变得”，后接名词、形容词（或其比较等级）、过去分词作表语，偶尔也可接带疑问词的动词不定式，常用在书面语中。
接名词：She became queen in 1952.（她于1952年成为女王。）
接形容词：The weather became warmer.（天气变暖和了。）
接过去分词：At last the truth became known to us.（我们终于知道了真相。）
用作及物动词：表示“适宜，合适”。例如：Does khaki become you?（卡其布适合你吗？）
become 后接动词的过去分词：可表示被动或结果，此时一般不接 by 短语。
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。）
It soon became apparent that no one was going to come.（很快就很清楚，没人会来。）
She was becoming confused.（她开始糊涂了。）
Vast areas of land have become desert.（广大的地区均已变成沙漠。）
The entrepreneur has become a news figure.（这位企业家变成了新闻人物。）
This place has become a famous summer resort.（这个地方已成为一个避暑胜地。）
The meeting began to become clamorous.（会议开始变得喧哗了。）
Class distinctions have become less important during the last 50 years.（在过去五十年间，社会等级差别已经变得不那么重要了。）
What became of that student who used to live with you?（以前和你住在一起的那个学生后来怎么样了？）
I dread to think what will become of them if they lose their home.（我不敢设想他们如果无家可归将会怎么样。）
become of：遭遇；结果是。例如：I thought constantly about her family; she might never know what had become of them.（我一直挂念着她的家人；她也许再也听不到他们的消息了。）
become interested in：对……感兴趣。例如：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。）
get：常指某人或某物有意无意地获得引起变化的因素，结果使变成另一状态。
grow：常指逐渐地变成新状态，强调渐变的过程。
turn：侧重