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时间:2018-09-16
《2013年职称英语卫生c真题来自教材的原文》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、www.123zcyy.com电话:400-618-25002013年职称英语卫生C真题来自教材的原文 Late-nightDrinking Coffeeloversbeware.Havingaquick“pick-me-up”cupofcoffee1lateinthedaywillplayhavocwith2yoursleep.Aswellasbeingastimulant,caffeineinterruptstheflowofmelatonin,thebrainhormonethatsendspeopleintoasleep. Melat
2、oninlevelsnormallystarttoriseabouttwohoursbeforebedtime.Levelsthenpeakbetween2amand4am,beforefallingagain.3"It'stheneurohormonethatcontrolsoursleepandtellsourbodywhentosleepandwhentowake,,,saysMauriceOhayonoftheStanfordSleepEpidemiologyResearchCenteratStanfordUniversityinCalif
3、ornia.ButresearchersinIsraelhavefoundthatcaffeinatedcoffeehalvesthebody'slevelsofthissleephormone. LotanShiloandateamattheSapirMedicalCenterinTelAvivUniversityfoundthatsixvolunteerssleptlesswellafteracupofcaffeinatedcoffeethanafterdrinkingthesameamountofdecaf.Onaverage,subjec
4、tsslept336minutespernightafterdrinkingcaffeinatedcoffee,comparedwith415minutesafterdecaf.Theyalsotookhalfanhourtodropoff4一twiceaslongasusual一andjiggedaround5inbedtwiceasmuch. Inthesecondphaseoftheexperiment,theresearcherswokethevolunteerseverythreehoursandaskedthemtogiveaurin
5、esample.Shilomeasuredconcentrationsofabreakdownproductofmelatonin.Theresultssuggestthatmelatoninconcentrationsincaffeinedrinkerswerehalfthoseindecafdrinkers.InapaperacceptedforpublicationinSleepMedicine,theresearcherssuggest6thatcaffeineblocksproductionoftheenzymethatdrivesmel
6、atoninproduction. Becauseitcantakemanyhourstoeliminatecaffeinefromthebody,Ohayonrecommendsthatcoffeeloversswitchtodecafafterlunch. 注释: 1.haveaquick"pick-me-up"cupofcoffee:喝一杯快速提神的咖啡。pick-me-up意为“提神饮料”,这里用做定语。 2.playhavocwith:干扰;对造成严重破坏。例如:Thenoiseofenginescanplayterribleha
7、vocwithadriver'snerves.发动机的嘈杂声能严重扰乱驾驶员的神经。 3.Levelsthenpeakbetween2amand4am,beforefallingwww.123zcyy.com电话:400-618-2500again.褪黑激素的浓度在凌晨2点和4点之间达到最高值,然后再次下降。before在此处可以译为“然后”。 4.dropoff:睡着。例如:Hedroppedoffinthearmchair.他在扶手椅上睡着了。 5.jigaround:辗转反侧。jig:急动,蹦蹦跳跳。例如:Stopjiggingabou
8、t,Billy,andjuststandstillforamoment.别到处乱蹦,比利,稳稳地站一会儿。 6.sugg
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