我们为什么做梦这个问题没有明确的答案，但有不同的理论。这些理论包括记忆储存、日常情绪的处理以及帮助我们为日常压力情境进行演练。本文就此展开讨论。
词汇：dreams梦
Therearenoclearanswerstothequestionofwhywedream,buttherearedifferenttheories.Dreamingisextraordinaryandstrange:youhallucinate,believeimpossiblethings,andpeopleyouknowmaymergeintooneanother.Andthen,totopitoff,youwilllikelyforgetallaboutit.
Memorystoragecouldbeonereasonforwhywedream.Whenyouareasleep,thebraindecideswhatinformationyoushouldmovetoyourlong-termmemoryandwhatshouldbeunlearnt.InaTEDTalk,psychologistAmyAdkinsdescribeda2010experimentinvolvingparticipantsstudyinghowtogetoutofacomplex3Dmaze.Itwasfoundthattheyweremuchbetteratattemptingitiftheyhadhadanapanddreamtofthemaze.
Anotherpurposeofdreamscouldbetheprocessingofourdailyemotions,whichmayaddtoemotionalmemoryconsolidation.In2003,theJournalofCognitiveNeurosciencepublishedresearchthatexperimentedwiththeideaofdreamsbeingareplicationofourdailylives.Diaryentriesanddreamjournalsof29healthyyoungadultsoveratwo-weekperiodwerecompared,anditwasdiscoveredthatemotionalthemesfromthedaywerereplicatedindreams35-55%ofthetime.
AnttiRevonsuo,aFinnishscientist,hassuggestedthatdreaminghelpsustoprepareforanddealwithstressfulsituations.Hestudiedchildren’snightmares,givinganexampleofbeingcontinuouslychasedbywolves.Hebelievesdreamslikethisstemfromourancestorsandcouldbearehearsalfordailystruggleandsurvival.Inmoderntimes,dreamsandnightmaresmaybepreparingusforsocialsituationssuchashavingafightwithafriend,goingonadateorhavingajobinterview.
Withsuchavarietyoftheoriesonwhywedream,itseemsthatmoreresearchisneededbeforewecancompletelyunderstandtheirpurpose.
extraordinary奇特的，非凡的hallucinate产生幻觉merge使合并、融合memorystorage记忆储存long-termmemory长期记忆unlearnt忘却maze迷宫anap小睡，打盹processing处理consolidation巩固replication复制diaryentries日记dreamjournal梦境日志emotionaltheme情感主题nightmare噩梦chased被追赶stemfrom由…造成，源自ancestor祖先rehearsal演练struggle挣扎，奋斗
1.阅读课文并回答问题。
1.Whyisdreamingdescribedasstrange
2.Whatdoesthebraindowithmemorywhenyouareasleep
3.TrueorfalseIna2010experiment,participantswerebetteratanactivityiftheyhadn’thadanap.
4.Howdidresearchersfindoutthatemotionalthemesfromthedaycouldbereplicatedindreams
5.Whatexampleofachildren’snightmareisgiven
2.选择意思恰当的单词或词组来完成下列句子。
1.Thetwocompaniesareplanningto_______intoone.
hallucinatemergeprocesschase
2.Ifyou’retired,whydon’tyoutakea_______
mazenapdreamnightmare
3.Therewasapower_______betweenthetwoownersofthecompany.
strugglereplicationthemesmemory
4.Don’twakethebaby!She’sfinally_______.
unlearntstressfulextraordinaryasleep
5.Hishealthproblems_______anaccidenthehadwhenhewasachild.
dealwithstemfromprepareforunderstand
1.WhyisdreamingdescribedasstrangeBecauseyoumighthallucinateandbelieveimpossiblethings.
2.WhatdoesthebraindowithmemorywhenyouareasleepThebraindecideswhatinformationyoushouldmovetoyourlong-termmemoryandwhatshouldbeunlearnt.
3.TrueorfalseIna2010experiment,participantswerebetteratanactivityiftheyhadn’thadanap.False.Participantswerebetteratattemptingtogetoutofamazeiftheyhadhadanapanddreamtofthemaze.
4.HowdidresearchersfindoutthatemotionalthemesfromthedaycouldbereplicatedindreamsParticipantswroteadiaryoftheday’seventsandadreamjournalandthesewerecompared.
5.Whatexampleofachildren’snightmareisgivenBeingchasedbywolves.
1.Thetwocompaniesareplanningtomergeintoone.
2.Ifyou’retired,whydon’tyoutakeanap
3.Therewasapowerstrugglebetweenthetwoownersofthecompany.
4.Don’twakethebaby!She’sfinallyasleep.
5.Hishealthproblemsstemfromanaccidenthehadwhenhewasachild.