新一代大学英语(发展篇)视听说教程1unit2答案

2-1①ABBBAB②1.safer2.tightercontrols3.Vegetables4.extinct5.decreasinginnumbers6.poorcountries7.wholeecosystem2-2①1.organic2.lessthan3.atleast4.95%5.100%6.theoutdoors7.naturaldiet8.beingkeptinsmallcages9.beingraised2-3①1.ACE2.AC3.AE4.A②1.milk,cheese,yoghurt/yogurt/milk,cheese,andyoghurt/yogurt2.marinealgae3.fishoilsupplements4.eatmeat2-4①1.theirnaturalstate2.man-madeingredients3.shelflife4.hydrogen5.uptoahalfgram6.thesameas7.lookold②1.Bad2.good3.plastic4.cells5.communicateortalk6.cancer7.packagedfoods8.baked9.fat10.desiremore11.highbloodpressure2-5①1.chemicalfertilizers2.killweedsandbugs3.thesupermarkets4.localfarmers5.moreexpensive6.itreallycomesfrom②1.growthesamecrop2.rains3.ourwaterways4.anorganicfarmer5.geneticallymodifiedseeds6.makeadifference2-71、BCC2、