fall asleep的音標(biāo)是[f??l ɑ?s mi?s]，翻譯為“入睡；睡著”。

速記技巧：將單詞拆分記憶，fall（落下）+ asleep（在睡覺）→落下后睡著→入睡。

“fall asleep”這個(gè)詞組的詞源可以追溯到古英語“falle”或“falle(an)”和“seccchen”或“sēac”或“sēacan”，意思是“落下”和“睡眠”。

它的變化形式主要有：

1. 過去式：fell asleep

2. 過去分詞：fallen asleep

3. 現(xiàn)在分詞：falling asleep

相關(guān)單詞：

1. “sleep”是一個(gè)獨(dú)立的單詞，也是“fall asleep”的組成部分，意思是“睡眠”。它可以作為名詞（如“a night of sleep”）和動(dòng)詞（如“to sleep”）使用。

2. “asleep”是“sleep”的形容詞形式，意思是“睡著的”。它可以作為形容詞（如“the dog was asleep on the floor”）和副詞（如“he fell asleep immediately”）使用。

在英文中，“fall asleep”通常用來描述一個(gè)人或動(dòng)物在某事發(fā)生后立即入睡的狀態(tài)。這個(gè)詞組在口語和書面語中都很常見，特別是在描述夜晚的安靜和寧靜時(shí)。

例如：“After a long day of work, I fell asleep quickly.”（經(jīng)過漫長(zhǎng)的工作日，我很快就入睡了。）或者“The baby slept soundly, falling asleep in the car on the way home.”（寶寶睡得很香，在回家的路上在車上就睡著了。）

常用短語：

1. fall asleep 睡著

2. nod off 打盹

3. drop off 睡著

4. doze off 打盹

5. lose consciousness 失去知覺

6. be asleep tight 睡得很熟

7. be fast asleep 睡得很熟

例句：

1. I couldn"t fall asleep because my mind was racing.

2. After a long day of work, I nodded off on the couch.

3. She woke up halfway through the movie and couldn"t go back to sleep.

4. After a few minutes of dozing off, he woke up with a start.

5. He fell unconscious after being hit by a car.

6. She slept soundly all night and woke up refreshed in the morning.

7. I was fast asleep by the time my parents came home.

英文小作文：

Sleep is essential for our physical and mental health. It helps us to restore energy and recharge our batteries, which is why we need to make sure we get enough sleep every night. However, for some people, falling asleep can be a challenge, whether it"s due to stress, anxiety, or other factors. If you find it difficult to fall asleep, here are some tips that may help:

1. Create a relaxing sleep environment with dark walls, soft lighting, and quiet surroundings.

2. Avoid caffeine and alcohol late in the day, as they can interfere with sleep.

3. Practice relaxation techniques, such as deep breathing or yoga, before bedtime to help calm down and relax.

4. Avoid screens for at least an hour before bedtime to reduce eye strain and blue light that can interfere with sleep cycles.

5. Set a regular sleep schedule and stick to it, even on weekends.

6. If you"re having trouble falling asleep due to a specific issue, such as anxiety or insomnia, speak with your doctor or seek out professional help.

By following these tips, you may find it easier to fall asleep at night and get the rest you need to feel your best.