我希望有充足的睡眠作文

篇一：關於睡眠的英語作文

關於睡眠的英語作文

關於睡眠的英語作文

睡眠是每個人每天必須經歷的生理活動，但親們是否知道睡眠分為幾個不同的層次呢？必克英語整理瞭一篇有關睡眠的英語作文，睡眠的重要性，睡眠不同階段的特征與童鞋們一起分享！祝大傢每天都睡得安穩，春節假期睡個好覺！

關於睡眠的英語作文范文

Sleep is part of a person’s daily activity cycle. There areseveral different stages of sleep, and they too occur in cycles. If you are anaverage sleeper, your sleep cycle is as follows. When you fist drift off intoslumber, your eyes will roll about a bit, you temperature will drop slightly,your muscles will relax, and your breathing well slow and become quite regular.Your brain waves slow and become quite regular. Your brain waves slow down abit too, with the alpha rhythm of rather fast waves 1 sleep. For the next halfhour or so, as you relax more and more, you will drift down through stage 2 andstage 3 sleep. The lower your stage of sleep. slower your brain waves will be.Then about 40to 69 minutes after you lose consciousness you will have reachedthe deepest sleep of all. Your brain will show the large slow waves that areknown as the delta rhythm. This is stage 4 sleep.