sleepy是形容词,意思是:困倦的,想睡的.做定语和表语
asleep是形容词,是意思是"睡着了的"强调状态只做表语(表语形词)
sleep是动词,意思是睡觉.
sleep 是动词 过去式是slept,例句she did not sleep last night
asleep是形容词。睡着的she is asleep意思:她睡着了
sleepy 形容词,犯困的she is sleepy她很困(不一定睡着了)
sleep 动词 asleep表示状态,sleepy 形容词
比如 he is sleeping
he is asleep.他睡着了
he is sleepy 他困了