資源描述:
《crossing your legs is an extremely common habit; most people 閱讀理解答案》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、Crossingyourlegsisanextremelycommonhabit;mostpeople閱讀理解答案 Crossingyourlegsisanextremelycommonhabit;mostpeopledon’tevennoticethatthey’redoingitwhentheysitdown.Whileyoumayfinditcomfortabletositwithonelegovertheother,itmightbecausinghealthproblemsthatyou
2、arenotawareof. AstudypublishedinBloodPressureMonitoringstatedthatsittingwithyourlegscrossedcanincreaseyourbloodpressure.Thereasonforthisisthatthebloodinyourlegshastoworkagainstgravitytobepumpedbacktoyourheartandthatcrossingonelegovertheotherincreasesr
3、esistance,makingitevenharderforthebloodtocirculate.Thiscausesyourbodytoincreaseyourbloodpressuretopushthebloodbacktotheheart.Youwon’tfeelanyimmediateeffects,butrepeated,drawn-outincreasesinbloodpressurecancauselong-termhealthissues.So,areyouplanningtos
4、itforalongperiodoftime?Don’tkeepyourlegscrossed. “Crossingyourlegsatthekneecanalsocausepressureonthemajornerveinyourlegthatpassesjustbelowyourkneeandalongtheoutsideofyourleg,”explainsRichardGraves,amedicalexpert.Thispressurecancausenumbnessandtemporar
5、yparalysis(麻痹)ofsomeofthemusclesinyourfootandleg,preventingyoufrombeingabletoraiseyourankles—whatweknowasthat“pinsandneedles”sensation.Whilethefeelingofdiscomfortmayonlylastaminuteortwo,repeatedlycrossingyourlegsuntiltheyfeelnumbcancausepermanentnerved
6、amage. Sonexttimeyousitdown,trytogetyourselfinthehabitofsittingwithbothofyourfeetonthefloor.Notonlywillithelpyourpostureandstability,butitwillalsosaveyourhealthinthelongrun. 32.Whatcanwelearnaboutcrossingone’slegs? A.Itisaverybadsocialhabit. B.Itis
7、usuallypracticeddeliberately. C.Itcandoharmtopeople’shealth. D.Itcanmakeothersfeeluncomfortable. 33.Accordingtothestudy,sittingwithyourlegscrossedcan______. A.affectyourbloodpressure B.resistgravityeffectively C.leadtohearttroubleeasily D.improv
8、ethefunctionoflegs 34.Inthethirdparagraph“pinsandneedles”probablymeans______. A.slightsharppains B.beingalittlenervous C.seriousmuscleinjuries D.beinghighlyflexible 35.Whatisthemainpurposeofthetext? A.Tocomparecommonhabits. B.To