become作为系动词时,通常后面接形容词,意思为变得,变成.
作为动词时,后面接名词,意思是成为.
例如：I become unfamiliar wtih them.
我对它们有些生疏了.unfamiliar adj.
His wish is to become a pilot.
他的愿望是当飞行员.a pilot n.
绝对权威,