If you work hard,you'll turn successful electronic engineer.

（1）作为系动词,turn也可以在后面接形容词做表语,但它经常表示“从某种状态向其对应的状态变化的自然现象”.例如：
The weather has turned much warmer.
天已经变得温暖多了.
注意：turn后面还可以接名词的原形作表语.例如：
That poor boy turned writer twenty years later.
二十年后,那个穷孩子成为一名作家.
turn
“（时刻等）超过,逾”
He has turned fifty.他已经五十岁了.
It has just turned half past two.
现在刚过两点半.
（2）become作为系动词使用时,强调变化过程的持续性.例如：
Gradually the boy became silent.
那个男孩渐渐变得沉默寡言了.
注意：become后也可以接名词作表语,但它后面的名词为普通用法.例如：
That poor boy became a writer twenty years later.
二十年后,那个穷孩子成为一名作家.
You will become a college student if you study hard.
如果努力学习,你会成为一名大学生的.