fall asleep強調入睡的動作；be asleep強調睡著的狀態(tài)。例如：The baby is asleep,don't turn up the radio.My father was so tired that he fall asleep quickly.

asleep的用法

asleep的用法1：asleep的基本含義是“睡著”,泛指已經(jīng)進入了睡眠的狀態(tài)。引申可表示“麻木的”“平靜的”“靜止的”; 也可表示“玩忽職守的”。

asleep的用法2：asleep是表語形容詞,偶爾用作定語時須后置,帶有修飾語時也可前置。

asleep的用法3：asleep不用于比較等級。

asleep的用法4：asleep可用fast, sound, much或very much等狀語修飾,但不可用very修飾。

asleep的用法5：asleep在句中也可用作賓語補足語。

asleep的用法6：asleep表示的是與awake相對的狀態(tài),有時含有“本該清醒,但卻睡了”的意思。

fall asleep和be asleep的相關例句

After changing the bed, I would fall asleep quickly

換了床單，我很快就能睡著。

He was wont to fall asleep after supper.

他老是吃完晚飯就打盹。

He was asleep there, curled up in the fetal position.

他像胎兒一樣蜷曲地睡在那兒。

His eyes were shut and he seemed to have fallen asleep.

他眼睛閉著，似乎睡著了。