新概念英语第四册第十九单元语法与句型.doc

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1、新概念英语第四册第十九单元课语法与句型Lesson19Thestuffofdreams说梦话的本质Itisfairlyclearthatthesleepingperiodmusthavesomefunction,andbecausethereissomuchofitthefunctionwouldseemtobeimportant.Speculationsaboutitsnaturehavebeengoingonforliterallythousandsofyears,andoneoddfindingthatmakestheproblempuzzli

2、ngisthatitlooksverymuchasifsleepingisnotsimplyamatterofgivingthebodyarest.'Rest',intermsofmusclerelaxationandsoon,canbeachievedbyabriefperiodlying,orevensittingdown.Thebody'stissuesareself-repairingandself-restoringtoadegree,andfunctionbestwhenmoreorlesscontinuouslyactive.Infac

3、tabasicamountofmovementoccursduringsleepwhichisspecificallyconcernedwithpreventingmuscleinactivity.Ifitisnotaquestionofrestingthebody,thenperhapsitisthebrainthatneedsresting?Thismightbeaplausiblehypothesiswereitnotfortwofactors.Firsttheelectroencephalograph(whichissimplyadevice

4、forrecordingtheelectricalactivityofthebrainbyattachingelectrodestothescalp)showsthatwhilethereisachangeinthepatternofactivityduringsleep,thereisnoevidencethatthetotalamountofactivityisanyless.Thesecondfactorismoreinterestingandmorefundamental.Inl960anAmericanpsychiatristnamedWi

5、lliamDementpublishedexperimentsdealingwiththerecordingofeye-movementsduringsleep.Heshowedthattheaverageindividual'ssleepcycleispunctuatedwithpeculiarburstsofeye-movements,somedriftingandslow,othersjerkyandrapid.Peoplewokenduringtheseperiodsofeye-movementsgenerallyreportedthatth

6、eyhadbeendreaming.Whenwokenatothertimestheyreportednodreams.Ifonegroupofpeopleweredisturbedfromtheireye-movementsleepforseveralnightsonend,andanothergroupweredisturbedforanequalperiodoftimebutwhentheywerenotexhibitingeye-movements,thefirstgroupbegantoshowsomepersonalitydisorder

7、swhiletheothersseemedmoreorlessunaffected.Theimplicationsofallthiswerethatitwasnotthedisturbanceofsleepthatmattered,butthedisturbanceofdreaming.(NCEBookFour)【语法点】matter的词性和用法【课文原句】Speculationsaboutitsnaturehavebeengoingonforliterallythousandsofyears,andoneoddfindingthatmakesthe

8、problempuzzlingisthatitlooksverymuchasifsleepingisnots