Reading - 副本

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1、Roguetheoryofsmellgetsaboost嗅觉的流氓理论得到推广1.Acontroversialtheoryofhowwesmell,whichclaimsthatourfinesenseofodourdependsonquantummechanics,hasbeengiventhethumbsupbyateamofphysicists.Odourn.气味，声誉quantum量子论mechanics力学；技术；机械学核心：如何闻的理论已得到物理学家团队的赞同。2.CalculationsbyresearchersatUniversityCollegeLon

2、don(UCL)showthattheideathatwesmellodourmoleculesbysensingtheirmolecularvibrationsmakessenseintermsofthephysicsinvolved.molecules分子vibrations震动，共鸣核心：物理学家的观点是有道理的。3.That'sstillsomewayfromprovingthatthetheory,proposedinthemid-1990sbybiophysicistLucaTurin,iscorrect.Butitshouldmakeotherscient

3、iststaketheideamoreseriously.核心：其他科学家要严肃接受Turin以前学说的方法。4."Thisisabigstepforward,"saysTurin,whohasnowsetuphisownperfumecompanyFlexitralinVirginia.Hesaysthatsincehepublishedhistheory,"ithasbeenignoredratherthancriticized."perfumen.香水；香味vt.洒香水于…；使…带香味核心：Turin开创的学说是一个巨大的进步。5.Mostscientistsha

4、veassumedthatoursenseofsmelldependsonreceptorsinthenosedetectingtheshapeofincomingmolecules,whichtriggersasignaltothebrain.Thismolecular'lockandkey'processisthoughttoliebehindawiderangeofthebody'sdetectionsystems:itishowsomepartsoftheimmunesystemrecogniseinvaders,forexample,andhowthetong

5、uerecognizessometastes.receptors受体；接受器；神经末梢核心：科学家的假设嗅觉取决于鼻子的探测器。6.ButTurinarguedthatsmelldoesn'tseemtofitthispictureverywell.Moleculesthatlookalmostidenticalcansmellverydifferent—suchasalcohols,whichsmelllikespirits,andthiols,whichsmelllikerotteneggs.Andmoleculeswithverydifferentstructur

6、escansmellsimilar.Moststrikingly,somemoleculescansmelldifferent—toanimals,ifnotnecessarilytohumans—simplybecausetheycontaindifferentisotopes(atomsthatarechemicallyidenticalbuthaveadifferentmass).identicaln.完全相同的事物adj.同一的；完全相同的Spirits烈酒thiols硫醇rotten腐烂的isotopes同位素核心：Turin图片不会影响嗅觉。7.Turin'

7、sexplanationforthesesmellyfactsinvokestheideathatthesmellsignalinolfactoryreceptorproteinsistriggerednotbyanodourmolecule'sshape,butbyitsvibrations,whichcanencourageanelectrontojumpbetweentwopartsofthereceptorinaquantum-mechanicalprocesscalledtunnelling.Thiselectronmoveme