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ID:5373620
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时间:2017-12-08
《gmat阅读解析练习之high blood pressure-智课教育》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、智课网GMAT备考资料GMAT阅读解析练习之Highbloodpressure-智课教育GMAT阅读最重要的就是要学会分析文章结构,理清文章脉络,把握作者的逻辑态度,简而言之就是要不断提高自己的阅读能力。但提高阅读能力不是一朝一夕就能实现的,为此,小编专门整理了一系列的GMAT阅读解析练习,本文包含了文章结构,题材分类,作者评价,难句解析……所有分析都淋漓尽致堪称完美,最大程度满足学生需要。希望能帮助大家不断提高阅读能力,最终取得满意的成绩。今天小编为大家整理的是关Highbloodpressure(Hypertension)的完美解析,赶
2、快学起来吧。Highbloodpressure(Hypertension)高血压Inmeasuringaperson’sbloodpressure,thephysiciantakestworeadings;thehighandthelow.Thehighestpressuretheheartproducesasitpumpsbloodintothearteriesiscalledthesystolicpressure.Thelowreading,calledthediastolic,isameasureofthepressurethatre
3、mainsinthearteriesjustbeforethenextheartbeattakesplace.Theaveragenormalbloodpressureinayoungadultisone-twentyovereighty(120/80);thatis120millimetresforthesystolicpressureand80millimetresforthediastolic.Itisimportanttorealizethatnofixedvalueexistsforthebloodpressureandthatt
4、hestandardfigureof120/80isreallytheaverageofafairlywiderange.Thenormalrangeforbloodpressureinahealthyyoungadultis90to140forthesystolicand60to90forthediastolic.Therefore,persistentreadingsabove140systolicand90diastolicactuallyindicatehypertensionorhighbloodpressure.Manyfact
5、orsmaycausehighbloodpressure.Itmaybeaprimarydiseaseentity(inwhichcaseitisreferredtoasessentialhypertension)orasymptomofanumberofdisordersaffectingthekidneys(thatisreno-vascularhypertension)oritmaybeduetodisordersofbloodvesselsortheadrenalglands.Overeating,withresultantobes
6、ityisacommoncause,aswellashereditaryfactors.Hypertensionmayalsobeanunwantedsideeffectofdrugtreatmentforotherdiseases.Stress,especiallyfromphysical,social;psychologicalandbusinessexertionisafactorinhighbloodpressure.Theconditionmaybemadestillworsebytheuseoftobaccoorhighinta
7、keofanimalfatinthediet;thatis,highcholesterollevel.Infectionssuchastonsillitis,andtyphoidfever,sometimesleadtokidneydisease,whichmaycausehighbloodpressure.Thesymptomsofhighbloodpressureareextremelyvariable.Headache,particularlyintheearlymorning,mayoccuraswellasdizziness.Th
8、eremaybepalpitationsandshortnessofbreathonexertionandchangesineyesight.Themaineffectsofhi
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