英语四级长篇阅读段落信息匹配题练习及答案-4

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1、英语四级长篇阅读段落信息匹配题练习及答案（4）Directions: Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.长篇

2、阅读 DefinitionsofObesityA)Howdoesonedefinewhenapersonisconsideredtobeobeseandnotjustsomewhatoverweight?Height-weighttablesgivean approximate guidelineastowhetheroneissimplyoverweightorhaspassedintotheobesestage.B)TheWorldHealthOrganizationrecommendsusinga formula thattakesintoaccountap

3、erson'sheightandweight.The"BodyMassIndex"(BMI)iscalculatedbydividingtheperson'sweightinkilogramsbythesquareoftheirheightinmeters,andisthusgiveninunitsofkg/m2.ABMIof18.5-24.9isconsideredtobethehealthiest.ABMIofbetween25and29.9isconsideredtobeoverweight,whileaBMIofover30isconsideredtobe

4、obese.C)However,itisrecognizedthatthisdefinitionislimitedasitdoesnottakeintoaccountsuchvariablesasage,genderandethnicorigin,thelatterbeingimportantasdifferentethnicgroupshaveverydifferentfatdistributions.Anothershortcomingisthatitisnotapplicabletocertainverymuscularpeoplesuchasathlete

5、sandbodybuilders,whocanalsohaveartificiallyhighBMIs.AgenciessuchastheNationalCholesterolEducationProgram(NCEP)intheUSAandtheInternationalDiabetesFoundation(IDF)arestartingtodefineobesityinadultssimplyintermsof waist circumference.HealthEffectsofObesityD)Over2000yearsago,theGreekphysic

6、ianHippocrateswrotethat"personswhoarenaturallyveryfatareapttodieearlierthanthosewhoareslender".Thisobservationremainsverytruetoday.Obesityhasamajorimpactonaperson'sphysical,socialandemotionalwell-being.Itincreasestheriskofdevelopingdiabetesmellitustype2("matureonsetdiabetes")andalsoma

7、kesType2diabetesmoredifficulttocontrol.Thusweightlossimprovesthelevelsofbloodglucoseandbloodfats,andreducesbloodpressure.Theassociationbetweenobesityandcoronaryheartdiseaseisalsowell-known.CancerE)Furthermore,in2001medicalresearchersestablishedalinkbetweenbeingoverweightandcertainform

8、sofca