Question

【題目】 We usually have a good mood if we sleep enough at night. Otherwise, sometimes we will feel sad. What’s more, sleep also influences our study or work.

You might be asleep but part of your brain is not. It’s carefully keeping time for you. In the morning, a thing called PER is released (釋放), which slowly wakes you up, often right before your alarm clock is set to go off. Sleep-talking can include some broken noises or complete sentences. About 5 percent of adults do it. It happens to children more often. And fever, stress, worries or sadness may lead to it.

Most people grind ( 磨 碎 ) their teeth while they are asleep, at least sometimes. An unusual bite or even sleep apnea ( 窒 息 ) may lead to this habit. Most people are not aware of this until the doctor tells them. If you harm your teeth at night, your dentist can give you a mouth guard to prevent it.

You think you’re resting, but your brain is doing some serious housekeeping every single night. While you are asleep, your brain clears out some memories and organizes others again. The brain also cleans itself and moves away unnecessary and harmful things.

Your muscles ( 肌 肉 ) are frozen for part of every night. In fact, it’s okay to be paralyzed ( 癱 瘓 的 ) during sleep. During rapid eye movement (REM) sleep, your brain is busy dreaming. To prevent yourself from acting to the dreams, our body’smuscles will be paralyzed. It’s possible to wake up during the end of this cycle and be awake but unable to move. These usually pass quickly.

Each night you lose about a pound because of the water vapor ( 蒸 汽 ) while breathing. So it is the most pleasant for you to weigh yourself in the morning. Take advantage of it!

Title: What our bodies are【1】with at night
Importance of sleep	Sleep【2】our work, study as well as our moods.
Keeping time & talking	● PER can often slowly 【3】you up right before the alarm clock. ● Fever, stress, worries or sadness can【4】sleep-talking.
Grinding 【5】	Most people don’t【6】this until the doctor tells them.
Cleaning your brain	The brain can not only【7】out but also organize some memories.
Getting paralyzed	● You don’t【8】to the dreams while being paralyzed. ● It’s okay for muscles to be paralyzed, but it won’t【9】 long.
Dropping pounds	You will be a little【10】if you weigh yourself in the morning.

Answer 1

【答案】

【1】busy

【2】influences

【3】wake

【4】cause

【5】teeth

【6】realize/know

【7】clear

【8】act

【9】last

【10】lighter

【解析】

本文主要介紹夜里睡覺(jué)時(shí)我們的身體會(huì)有什么變化。

【1】這是本文的標(biāo)題也就是主旨。本文主要講的就是夜里睡著時(shí)身體會(huì)有不同的變化。be busy with sth忙于某事; What our bodies are busy with at night我們的身體在晚上忙什么。故答案是busy。

【2】根據(jù)第一段What’s more, sleep also influences our study or work可知睡眠會(huì)影響我們的工作，學(xué)習(xí)和情緒。influence 影響，動(dòng)詞；主語(yǔ)是sleep，所以用第三人稱(chēng)單數(shù)形式，故答案是influences。

【3】根據(jù)第二段In the morning, a thing called PER is released (釋放), which slowly wakes you up, often right before your alarm clock is set to go off.可知PER會(huì)在鬧鐘響之前，叫醒你。wake sb up 叫醒某人；情態(tài)動(dòng)詞can后加動(dòng)詞原形，故答案是wake。

【4】根據(jù)第二段And fever, stress, worries or sadness may lead to it.這里的it指代的是sleep-talking，所以此空填lead to 的同義詞cause，引起，故答案是cause。

【5】第三段的第一句Most people grind ( 磨 碎 ) their teeth while they are asleep, at least sometimes.是本段的主旨句，大多數(shù)人在睡覺(jué)時(shí)，都會(huì)磨牙；grind teeth磨牙，故答案是teeth。

【6】根據(jù)第三段Most people are not aware of this until the doctor tells them.可知大多數(shù)人不會(huì)意識(shí)到自己會(huì)磨牙，直到醫(yī)生告訴他們。此處填be aware of 的同義詞realize或know，故答案是realize/know。

【7】根據(jù)第四段While you are asleep, your brain clears out some memories and organizes others again. 當(dāng)你睡著的時(shí)候，你的大腦會(huì)清除一些記憶并重新組織其他的記憶，clear out清理，故答案是clear。

【8】根據(jù)第五段To prevent yourself from acting to the dreams, our body’smuscles will be paralyzed.可知當(dāng)你處于癱瘓狀態(tài)時(shí)，你不會(huì)對(duì)夢(mèng)想采取行動(dòng)。故答案是act。

【9】根據(jù)第五段These usually pass quickly.可知睡覺(jué)時(shí)肌肉癱瘓沒(méi)關(guān)系，但是這些會(huì)很快過(guò)去，不會(huì)持續(xù)很長(zhǎng)時(shí)間，故答案是last。

【10】根據(jù)最后一段Each night you lose about a pound because of the water vapor ( 蒸 汽 ) while breathing.可知 每晚呼吸時(shí)會(huì)蒸發(fā)一磅的水，所以早上的時(shí)候體重會(huì)輕一點(diǎn)，故答案是lighter。