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1、Whatisthemoststressfulthinginschool?Itisprobablyexams.Examscanputusunderalotofpressure.Butsomestudentsdowellunderpressure,whileothersfeelterrible.1•Itallcomesdowntodopamine（多巴胺）.2.Ithasmanyimportantroles:influencingmemory,attentionandhowwelearn.Ourbrainsworkbestwhenthereisanevenbala
2、nce（平衡）ofdopamine一nottoomuchortoolittle.Thebraincontrolsdopamineintwoways.Iteithertakesoutdopaminequickly,orgradually.Examsuccesscanberelatedtohowfastdopaminegoesbacktoanevenbalance.3.Ifyoubecomestressed,yourbrainwillstarttooverload（超负荷）ondopamine.4.Thequickeryouareabletogobacktoane
3、venbalanceofdopamine,thequickeryoucanfixyourselfperformbetteronatest.Scientistsfoundthat,duringatest,peoplewhoslowlygotbacktoanevenbalanceofdopaminescored8percentlower.5.Butdonrtfear,thereissomegoodnews-Thestudyalsofoundthatthemorepracticeyouget,thelessstressedyou'llbe.So,itturnsout
4、thatpracticereallydoesmakeperfect.A.Whathappenswhenwesitforanexam?B.Itislikeacupoverflowing（溢岀）withwater.C.So,whydosomestudentsperformbetterunderstress?D.That'sthedifferencebetweenagoodmarkandabadmark.E.Dopamineisachemicalinourbrainthatsendsinformationtoourbody.F.Isthereanythingthat
5、canhelpchangethespeedofdopaminegettingintoourbody?1.2.3.4.5.Whenwetravelaroundtheworld,wemayseemanybuildingsofspecialshapesintheworld.1.Forexample,whenyouseeapictureofsportsstadiumthatremindsyouofabird'snest,youprobablyknowitistheOlympicStadiuminBeijing.Greatbuildingsalwayshavespeci
6、alshapes.2.Forexample,inZhengzhou,peoplecanvisitHenanArtCenter,builtintheshapeofgoldeggs.Theshapeofitisspecial."Fivegoldeggs^iscollectedinacenter.ItmeansZhengzhouliesinthecentreoftheCentralPlain.3.VisitorswhoareinterestedinguitarsmightwanttovisittheGuitarMuseumintheUSA.Thebuildingis
7、shapedlikeaguitar.Inside,visitorscanseeallkindsofmusicinstruments.4.Oneofthenewestfunny-shapedmuseumsisapottery（陶瓷）museuminKorea.Thismuseum,builtin2011,isshapedjustlikeatraditionalKoreanpot.Visitorscanseeexamplesofpotsandtoolsusedformakingpotsinthemuseum.5.Maybeoneday,oneofthemwillb
8、ecomeapotteryartist
