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®Issue596,Vol.2011UNSVstSeptember21,2011ExecutiveEditor:VANALLENhttp://www.unsv.com电子版AnElaborateDailyMagazineforEnglishLearnersstIssue596,Vol.2011,September21http://www.unsv.comUNSV.COM英语辅导杂志第一部分、英语阅读理解学习建议请在笔记本里记下阅读过程中遇到的生词以及无法理解的短语和句子。文章阅读完后带着遇到的问题参考后面的词汇句型讲解和英汉翻译对照。之后的几天多抽时间复习留在笔记本里的生词和问题并阅读文章以最大化巩固学习成果。HEALTHREPORT--BiologyMayKeepNewFathersClosetoHomeMP3配套声音文件下载链接http://www.unsv.com/voanews/specialenglish/scripts/2011/09/21/0041/Afewmonthsago,governmentresearchersreleasedthelatestAmericanTimeUseSurvey.ItincludedtheaveragetimeperdaythatAmericansspentprovidingchildcarebetweentwothousandsixandtwothousandten.Amongadultslivingwithchildrenunderagesix,womenspentonehourandsixminutesadayprovidingphysicalcare.Thisiscarelikebathingorfeedingachild.Menspenttwenty-sixminutes.Yetanewstudysuggeststhatmenarebiologicallydesignedtocarefortheirchildren.Itconfirmedthattestosteronelevelsdropaftermenbecomefathers.Testosteroneisthemainsexhormoneresponsibleforthechangeswhenaboydevelopsintoaman.Womenalsoproducetestosteronebutinmuchloweramounts.Earlierstudiesshowedthatfathershavelowerlevelsoftestosteronethanchildlessmen.ChristopherKuzawaatNorthwesternUniversityinEvanston,Illinois,saysthereareatleasttwopossibleexplanations.CHRISTOPHERKUZAWA:“Isitthatfatherhoodreducesyourtestosterone?Ordomenwithlowtestosteronetobeginwith,aretheymorelikelytobecomefathers?Andsowhatwedidis,wefollowedmenthroughtimeandmeasuredtheirhormonesbeforeandaftertheybecamefathers.”ProfessorKuzawaisabiologicalanthropologist.Heandotherresearchersusedinformationfromalong-termstudyofmeninthePhilippines.Thatstudymeasuredtheirtestosteronelevelsintwothousandfiveandtwothousandnine.HEALTHREPORT-BiologyMayKeepNewFathersClosetoHome1stIssue596,Vol.2011,September21http://www.unsv.comUNSV.COM英语辅导杂志Someofthemenwerechildless;othersbecamefathersdurin
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