gmat阅读解析练习之high blood pressure-智课教育

《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