1
[subject] fall asleep
基本用法，表示进入睡眠状态。
He fell asleep during the movie.
他在看电影时睡着了。
入睡；睡着
fallen asleep — past participle of fall asleep · irregular form
先理解核心含义，再看它在真实句子里的用法。
入睡；睡着
to begin to sleep; to pass into sleep
He fell asleep during the movie.
他在看电影时睡着了。
从清醒状态进入睡眠
To pass from a state of wakefulness into sleep.
受麻木感影响；变得麻木
To be affected by paresthesia; to go numb.
fall asleep
Base
原形
falls asleep
3rd person
第三人称单数
falling asleep
-ing
现在分词
fell asleep
Past
过去式
fallen asleep
Past participle
过去分词
I fall asleep quickly at night.
我晚上很快入睡。
Last night, I fell asleep on the sofa.
昨晚我在沙发上睡着了。
I have fallen asleep during the movie.
我在看电影时睡着了。
不及物动词短语，fall为不规则动词
The baby usually falls asleep after being fed.
婴儿通常在喂奶后入睡。
I fell asleep on the sofa while watching TV last night.
昨晚我在看电视时在沙发上睡着了。
She was so tired that she fell asleep as soon as she lay down.
她太累了，一躺下就睡着了。
基本用法，表示进入睡眠状态。
He fell asleep during the movie.
他在看电影时睡着了。
强调在做某事的过程中入睡。
She fell asleep while reading a book.
她看书时睡着了。
常见地点介词：in/on/at。
The baby fell asleep in the car.
婴儿在车里睡着了。
Not this
I fall asleep last night.
Use this
I fell asleep last night.
中文学习者常误用动词时态，'fall asleep' 的过去式是 'fell asleep'。'Fall' 是不规则动词，过去式 'fell'，不是 'fall'。所以应使用 'fell asleep' 来表示过去的动作。
Not this
I fell asleep my book.
Use this
I fell asleep while reading my book.
'fall asleep' 是不及物短语，不能直接带宾语。中文学习者常受中文'睡着书'之类表达的影响，错误地让'fall asleep'后接名词。正确用法是接状语从句或介词短语，如'while reading'。
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不及物，无被动形式
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.