英语四级长篇阅读段落信息匹配题练习及答案.doc

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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.Eachparagraphismarkedwithalett

2、er.长篇阅读 DefinitionsofObesityA)Howdoesonedefinewhenapersonisconsideredtobeobeseandnotjustsomewhatoverweight?Height-weighttablesgivean approximate guidelineastowhetheroneissimplyoverweightorhaspassedintotheobesestage.B)TheWorldHealthOrganizationrecommendsusinga formula thattakesint

3、oaccountaperson'sheightandweight.The"BodyMassIndex"(BMI)iscalculatedbydividingtheperson'sweightinkilogramsbythesquareoftheirheightinmeters,andisthusgiveninunitsofkg/m2.ABMIof18.5-24.9isconsideredtobethehealthiest.ABMIofbetween25and29.9isconsideredtobeoverweight,whileaBMIofover30i

4、sconsideredtobeobese.C)However,itisrecognizedthatthisdefinitionislimitedasitdoesnottakeintoaccountsuchvariablesasage,genderandethnicorigin,thelatterbeingimportantasdifferentethnicgroupshaveverydifferentfatdistributions.Anothershortcomingisthatitisnotapplicabletocertainverymuscula

5、rpeoplesuchasathletesandbodybuilders,whocanalsohaveartificiallyhighBMIs.AgenciessuchastheNationalCholesterolEducationProgram(NCEP)intheUSAandtheInternationalDiabetesFoundation(IDF)arestartingtodefineobesityinadultssimplyintermsof waist circumference.HealthEffectsofObesityD)Over20

6、00yearsago,theGreekphysicianHippocrateswrotethat"personswhoarenaturallyveryfatareapttodieearlierthanthosewhoareslender".Thisobservationremainsverytruetoday.Obesityhasamajorimpactonaperson'sphysical,socialandemotionalwell-being.Itincreasestheriskofdevelopingdiabetesmellitustype2("

7、matureonsetdiabetes")andalsomakesType2diabetesmoredifficulttocontrol.Thusweightlossimprovesthelevelsofbloodglucoseandbloodfats,andreducesbloodpressure.Theassociationbetweenobesityandcoronaryheartdiseaseisalsowell-known.CancerE)Furthermore,in2001medicalresearchersestablishedalinkb

8、etweenbeingoverweightandcertainformsofca