下载后可任意编辑新概念第四册课文翻译及学习笔记Lesson19~21新概念第四册课文翻译及学习笔记Lesson19【课文】Firstlistenandthenanswerthefollowingquestion
听录音,然后回答以下问题
Whatisgoingonwhenapersonexperiencesrapideye-movementsduringsleep
Itisfairlyclearthatthesleepingperiodmusthavesomefunction,andbecausethereissomuchofitthefunctionwouldseemtobeimportant
Speculationsaboutitsnaturehavebeengoingonforliterallythousandsofyears,andoneoddfindingthatmakestheproblempuzzlingisthatitlooksverymuchasifsleepingisnotsimplya下载后可任意编辑matterofgivingthebodyarest
‘Rest’,intermsofmusclerelaxationandsoon,canbeachievedbyabriefperiodlying,orevensittingdown
Thebody’stissuesareself-repairingandself-restoringtoadegree,andfunctionbestwhenmoreorlesscontinuouslyactive
Infactabasicamountofmovementoccursduringsleepwhichisspecificallyconcernedwithpreventingmuscleinactivity