Unit 5 Dreams新编大学英语第二版第二册课文翻译

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1、Unit 5 DreamsAreYouaDreamer?1Dreams—whydowehavethem?Dotheymeananything?Istheresuchathingasadreaminwhichtheeventsseenbythedreamercometrue?Suchquestionshaveinterestedpeopleforthousandsofyears.Scientificadvancesinthepastfewdecadeshaverevealedmoreaboutthephysicalprocessofsleep,buttheystilldon'tof

2、feranyfinalanswerstothemanyquestionsaboutdreamsthatcontinuetopuzzleus.2Everyonedreams—it'sjustthatsomeofuscan'trememberdoingso.Recordingsofhumanbrainwavesshowthatweallgointodreammodewhenwefallasleep.Wedreamformostofthenight,butwe'reonlyabletorememberourdreamsifwehappentowakeupwhilewearestilli

3、nREM(RapidEyeMovement)sleep.Thisiswhenwedream.WehavefourorfiveREMstagesofsleepduringthenight,thefirstoccurringabout90minutesafterwefallasleep.Afterthat,ourdreamingperiodsrecurevery90minutesandlastbetween15to45minutes,gettinglongerasthenightprogresses.3Themainpurposeofsleeping(apartfromgivingu

4、srest)maybetoallowustodream—toreviewourlives,ourworriesandhopesinatotallydifferentway,andtogetanunconsciousviewofourselves,gettingridofmaterialfromourmemoriesthatwenolongerneed.4Somedreamsmayhaveasimplephysiologicalcause.Dreamingofwalkingonhotcoals,forexample,maywellbecausedbysleepingwithyour

5、feettooclosetoaheater.Andthefrustratingdreaminwhichyoutrytorunbutyourlegswon'tmovemaybeexplainedbybeddingthatistootight.Anyonewhosleepsthroughtheiralarmmaywelldreamofdoorbellsortelephonesringing.Allaresimpleexamplesofhowtheunconsciousworkswithourconsciousmindtoguideandadviseus.5Butsuchphysiol

6、ogicalexplanationsarenotenoughtotelluswhywedream.Somepeoplebelievethatdreamsaretotalnonsense,merelytheresultofthemisfiringofelectricalimpulsesinthebrain,whileontheotherhand,somereadgreatimportanceintoeventhesimplestofdreams.6Somedreamsreflectinnerfearsthatareinstantlyrecognizable.Dreamingoflo

7、singyourjoborhousecanreflectrealfears,eveniftheyareonlysubconscious.Mostofushavedreamedthatwehadtotakeafinalexamforadifficultcourse,whichwehadnevertaken,orinwhichwehaddonepoorly.7Butwhatofthedreamsthatdonothavesuchanobviousmeaning?Forcenturie