He becomes a teacher when he grew up 这句话中becomes是谓语但是它是不及物动词a

become 有及物也有不及物的意思
不及物的用法it will become clearer in the morning.
及物的用法就是你那句 是没有问题的谓语能用不及物动词和及物动词？这是个主系表结构，become实际上是所谓的系动词觉得你可能是被课本上简单的对become 的当做vi的误导了以下是牛津词典的释义，稍微解释下①linking verb to start to be sth: 这是作为连词的用法，become后可以接形容词和名词 你说的He becomes a teacher就是这种用法中在become后接名词~~[V-ADJ] 【就词后面可以接形容词的用法】It was becoming more and more difficult to live on his salary. ~~ [V-N] 【动词后面接名词】She became queen in 1952. ◆ The bill will become law next year. ◆ She's studying to become a teacher. ◆ His job has become his whole life.