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智课网TOEFL备考资料益阳托福tpo听力下载智课教育小编为大家准备了《益阳托福tpo听力下载》，供各位备考托福的考生们参考使用!21.W:what'stheproblem,paul?youreallylookpanicked.>>>点击下载MP3(MA)So,yousee,physicalillnesscanhavepsychologicalcauses.Now,wejusthavetimetointroduceanotherinterestingexampleoftheinteractionbetweenthemindandthebody---placebos.Placebos---maybeyou'veheardthemcalledsugarpills---areharmlesssubstances---notalwayssugar---thatareusedroutinelyongroupsofsickpeopleinexperiments.Theseexperimentstesttheeffectivenessofnewdrugs.Onegroupisgiventhenewdrug,theothergroupisgivenaplacebo,andtheresultsaremeasured.Asyoumightguess,someofthepeoplewhoreceivethenewdruggetbetter.Surprisingly,however,someoftheplacebogroupalsogetbetter.Why?Well,it'saninterestingquestion,onewhichdoctorscan'tquiteanswer.Someofthegroupmayhavegottenbetterontheirown,withoutanytreatmentatall,butresearchhasshownthattheveryactoftakingamedicationthatyouthinkwillmakeyoubetter,oftendoesmakeyoufeelbetter.Haveyoueventakenanaspirinandfeltbetterinfiveminutes?Aspirindoesn'tworkthatfast,doesit?[fallingintonation]Basically,ifyoubelieveyouwillgetbetter---sometimesyoudo.Thehistoryofhowdoctorsandhealershaveusedthemind-bodyconnectiontocurepeopleislongandinteresting---butIseethatit'stimetochose,soI'llhavetocoverthisinthenextclass.You'llhavetoholdyourquestionsonthistopictillthen....Beforeyougo,Ihavesomehandoutsforyouconcerningthemidtermexamsnextweek.托福考前攻略：本文来源: