欢迎来到天天文库
浏览记录
ID:20968519
大小:27.00 KB
页数:3页
时间:2018-10-18
《crossing your legs is an extremely common habit; most people 阅读理解答案》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、Crossingyourlegsisanextremelycommonhabit;mostpeople阅读理解答案 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
此文档下载收益归作者所有