eating too much fatty food

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1、Eatingtoomuchfattyfood　　Eatingtoomuchfattyfood,exercisingtoolittleandsmokingcanraiseyourfutureriskofheartdisease.Butthereisanotherfactorthatcancauseyourheartproblemsmoreimmediately:theairyoubreathe.　　Previousstudieshavelinkedhighexposure(暴露)toenvironmentalpollutiontoanincreasedriskofheartproblem,bu

2、ttwoanalysesnowshowthatpoorairqualitycanleadtoheartattackorstroke(中风)withinaslittleasafewhoursafterexposure.Inonereviewoftheresearch,scientistsfoundthatpeopleexposedtohighlevelsofpollutants(污染物)wereupto5%morelikelytosufferaheartattackwithindaysofexposurethanthosewithlowerexposure.Aseparatestudyofst

3、rokepatientsshowedthatevenairthattheU.S.EnvironmentalProtectionAgency(EPA)considerstobeof“moderate”(良好)qualityandrelativelysafeforourhealthcanraisetheriskofstrokeasmuchas34%within12to14hoursofexposure.　　Theauthorsofbothstudiesstressthattheserisksarerelativelysmallforhealthypeopleandcertainlymodestc

4、omparedwithotherriskfactorssuchassmokingandhighbloodpressure.However,itisimportanttobeawareofthesedangersbecauseeveryoneisexposedtoairpollutionregardlessoflifestylechoices.SostricterregulationbytheEPAofpollutantsmaynotonlyimproveenvironmentalairqualitybutcouldalsobecomenecessarytoprotectpublichealt

5、h.　　53.Thetextmainlydiscussestherelationshipbetween________.　　A.heartproblemsandairquality　　B.heartproblemsandexercising　　C.heartproblemsandsmoking　　D.heartproblemsandfattyfood　　54.Theunderlinedword“modest”inParagraph3mostprobablymeans________.　　A.relativelyhighB.extremelylow　　C.relativelylowD.extr

6、emelyhigh　　53.Whatcanwelearnfromthetext?　　A.Eatingfattyfoodhasimmediateeffectsonyourheart.　　B.TheEPAconductedmanystudiesonairquality.　　C.Moderateairqualityismoreharmfulthansmoking,　　D.Stricterregulationsonpollutantsshouldbemade.　　56.Theauthor’spurposeofwritingthetextismostlikelyto________.　　A.infor

7、mB.persuadeC.describeD.entertain　　答案：ACDA