高三英语单元复习调研检测卷6

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1、Ⅰ.阅读理解You’reinabitofadilemmastandinginfrontoftheproducesectionofyourlocalsupermarket.Inonehand,you’reholdingaconventionallygrownGrannySmithapple.Inyourotherhand,youhaveonethat’sbeenorganicallygrown.Bothapplesarefirm,shinyandgreen.Bothprovidevitaminsandfiber,andbothare

2、freeoffat,sodium(钠)andcholesterol（胆固醇）.Theconventionallygrownapplecostslessandisaprovenfamilyfavorite.Buttheorganicapplehasalabelthatsays“USDAOrganic”.Doesthatmeanit’sbetter?Safer?Morenutritious?Severaldifferencesbetweenorganicandnon-organicfoodsexist.Becomeabetterinf

3、ormedconsumerforyournexttriptothesupermarket.Theword“organic”referstothewayfarmersgrowandprocessagriculturalproducts,suchasfruits,vegetables,grains,dairyproductsandmeat.Organicfarmingpracticesaredesignedtoencouragesoilandwaterconservationandreducepollution.Farmerswhog

4、roworganicproduceandmeatdon’tuseconventionalmethodstofertilize,controlweedsorpreventlivestockdisease.Hereareotherdifferencesbetweenconventionalfarmingandorganicfarming:ConventionalfarmersOrganicfarmersApplychemicalfertilizerstopromoteplantgrowth.Applynaturalfertilizer

5、stofeedsoilandplants.Applyinsecticidestoreducepestsanddisease.Usebeneficialinsectsandbirdstoreducepestsanddisease.Giveanimalsantibiotics（抗生素）,growthhormones（激素）andmedicationstopreventdiseaseandpromotegrowth,housing.Giveanimalsorganicfoodandallowthemaccesstotheoutdoors

6、.Usepreventivemeasures—suchasabalanceddietandcleanhousing—tohelpminimizedisease.*Organicornot?Checkthelabel.TheU.S.DepartmentofAgriculture（USDA）hasestablishedanorganiccertificationprogramthatrequiresallorganicfoodstomeetstrictgovernmentstandards.Thesestandardsregulate

7、howsuchfoodsaregrown,handledandprocessed.AnyfarmerorfoodmanufacturerwholabelsandsellsaproductasorganicmustbeUSDAcertifiedasmeetingthesestandards.Onlyproducerswhoselllessthan5,000ayearinorganicfoodsareexempt（免除）fromthiscertification.IfafoodbearsaUSDAOrganiclabel,itmea

8、nsit'sproducedandprocessedaccordingtotheUSDAstandards.Thesealisvoluntary,butmanyorganicproducersuseit.1.Themainpurposeofthep