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时间:2020-04-26
《黑龙江省哈尔滨市第六中学2018-2019学年高二6月阶段性测试英语试题(含答案).doc》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、哈尔滨市第六中学2020届6月份阶段性测试高二英语试题第一卷第一部分:阅读理解(共两节,满分40分)第一节:(共15小题;每小题2分,满分30分)ACrossingyourlegsisanextremelycommonhabit;mostpeopledon’tevennoticethatthey’redoingitwhentheysitdown.Whileyoumayfinditcomfortabletositwithonekneecrossedovertheother,itmightbecausinghealthproblemsthatyouare
2、notawareof.AstudypublishedinBloodPressureMonitoringstatedthatsittingwithyourlegscrossedcanincreaseyourbloodpressure.Thereasonthishappensisbecausethebloodinyourlegshastoworkagainstgravitytobepumpedbacktoyourheart,crossingonelegovertheotherincreasesresistance,makingitevenharderfo
3、rthebloodtocirculate.Thiscausesyourbodytoincreaseyourbloodpressuretopushthebloodbacktotheheart.Youwon’tfeelanyimmediateeffects,butifyousitforlongperiodsoftimeit’simportantthatyoutakenoteofhowlongyouhaveyourlegscrossedfor.Youshouldn’thaveyourlegscrossedformorethan15minutes,andit
4、’simportantthatyougetupandwalkaroundatleastonceeveryhour.Crossingyourlegscanalsoleadtoneckandbackpain.Ideally,it’sbestforourbodiestositwithourfeetplantedflat,hipwidthapart,onthefloor,butit’snoteasytomaintainperfectposturealldayattheoffice.Youalsomightnoticethatwhenyousitwithyou
5、rlegscrossedforlongperiodsoftimeyourfeetandlegsgettingly(刺痛的)orhavethefeelingofbeingasleep.Whilethefeelingofdiscomfortmayonlylastaminuteortwo,repeatedlycrossingyourlegsuntiltheyfeelnumbcancausepermanentnervedamage.Sonexttimeyousitdown,trytogetyourselfinthehabitofsittingwithboth
6、ofyourfeetonthefloor.Notonlywillithelpyourpostureandstability,butitwillalsosaveyourhealthinthelongrun.1.Crossinglegsaffectyourbloodpressurebecause___________.A.itcausesyourbodytopushthebloodbacktotheheart.B.youcannotfeelanyimmediateeffects.C.itisharderforthebloodtocirculate.D.y
7、oudon’thaveenoughtimetowalkaround.2.Tosolvetheproblemscausedbycrossinglegs,you’dbetter_______.A.sitwithyourfeetplantedflatonthefloorforhours.B.keepyoursittingpostureandstabilitypermanently.C.trytobeawareofwhetheryouarecomfortableornot.D.payattentiontohowlongyouhaveyourlegscross
8、edfor.3.Whichwordcannotdescribethefeelingwhenyoucrossy
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