سلام . این سوال جواب رو بخونید جوابتون رو می گیرید 
I want to know the difference between ‘to be’ and ‘to become’.
There are two sentences below
- I want to be a president.
- I want to become a president.
I think the two sentences are same. If not, what is the difference in meaning? What do you think of this?
be’ is just the state of sth\sb but ‘become’ describes a transition, a change. Expressing your wish in both ways is correct, but remember to be a president, first you need to become one
I want to become president.
implies there are steps or a process one must go through.
I want to be president.
only emphasizes the end point or goal .
Either way the result, if successful, is that you are president.