阅读理解题,,,1_学科竞赛_小学教育_教育专区

阅读理解题,,,1_学科竞赛_小学教育_教育专区

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时间:2019-09-20

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1、第1篇Youreinabitofadilemmastandinginfrontoftheproducesectionofyourlocalsupermarket.Inonehand,youYcholdingaconventionallygrownGrannySmithapple・Inyourotherhand,youhaveonethat'sbeenorganicallygrown・Bothapplesarefirm,shinyandgreen.Bothprovidevitaminsandfiber,andbotharefreeoffat,sodiumandcholesterol.T

2、heconventionallygrownapplecostslessandisaprovenfamilyfavorite・But(heorganicapplehasalabelthatsays"USDAOrganic1*.Doesthatmeanit'sbetter?Safer?Morenutritious?Severaldifferencesbetweenorganicandrganicfoodsexist.Becomeabetterinformedconsumerforyournexttriptothesupermarket.^Conventionalvsorganicfarm

3、ingTheword"organic”referstothewayfannersgrow*andprocessagriculturalproducts,suchasfruits,vegetables,grains,dairyproductsandmeat.Organicfaintingpracticesaredesignedloencouragesoilandwaterconservationandreducepollution.Farmerswhogroworganicproduceandmeatdon'tuseconventionalmethodstofertilize,cont

4、rolweedsorpreventlivestockdisease・Hereareotherdifferencesbetweenconventionalfarmingandorganicfarming:ConventionalfarmersOrganicfarmersApplychemicalfertilizerstopromoteplantgrowth,Applynaturalfertilizerstofeedsoilandplants・Applyinsecticidestoreducepestsanddisease.Usebeneficialinsectsandbirdstore

5、ducepestsanddisease・Giveanimalsantibiotics(抗生索),growthhonnones(激索)andmedicationstopreventdiseaseandpromotegrowth,housingGiveanimalsorganicfeedandallowthemaccesstotheoutdoors・Usepreventivemeasures—suchasabalanceddietandcleanhousing—tohelpminimizedisease・*Organicornot?CheckthelabelTheU.S.Departme

6、ntofAgriculture(USDA)hasestablishedanorganicccrtificationprogramthatrequiresallorganicfoodstomeetstrictgovernmentstandards・Thesestandardsregulatehowsuchfoodsaregrown,handledandprocessed・AnyfarmerorfoodmanufacturerwholabelsandsellsaproductasorganicnlustbeUSDAcertifiedasmeetingthesestandards・Only

7、producerswhoselllessthan$5,000ayearinorganicfoodsareexempl(免除)fromthiscertification.IfafoodbearsaUSDAOrganiclabel,itmeansitsproducedandprocessedaccordingtotheUSDAstandards.Thesealisvoluntary,butmanyorganicproducersuseit.l.Themainp

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