step-by-step3000第三册unit2答案及原文

英语专业学生经典的听力材料Unit2EarthandEnvironmentPart1WarmingupA1....impactofclimatechange…damagetocrops…worse...2....2000delegates…northernBrazil…thirdUnitedNationsConferenceonDesertification.3....Ahugeoilspill…Mexico,...4.Wildfires…Florida…contained…aweek...5....Greenlandismeltingaroundtheedges…50cubickilometers…raiseglobalsealevel...B1.Itattemptstobalanceenvironmentalconcernsandtheneedsofthecommunity.2.Reptilespeciesareingreatertroublethanamphibianspecies.3.Anewapproachinthefightagainsttheillegaldrugstrade.4.Oneineveryeightspeciesofplantsisthreatenedwithextinction.5.Anewlocaldirectoryfortheenvironmentally-aware,calledthe“BoulderCountyGreenPages”.PartIINewsReportsA...Washington…theinformationeconomy…deterioratinghealthoftheplanet…informationeconomy…communication…educationandentertainment…physicalexam…vitalsigns…species…climate…temperatures…watertables…glaciers…forests…fisheries…tostabilizebothclimateandworldpopulationgrowthBSummary…thesevereshortageofwaterinsomedevelopingnations.…globalsolutionsarefoundsoon.Answerstothequestions1.1502.Monday3.Almostonebillionpeoplecouldsufferfromascarcityofwater.4.MiddleEast,partsofAfrica,westernAsia,NortheasternChina,westernandsouthernIndia,largepartsofPakistanandMexico,partsofthePacificcoastoftheUnitedStatesandSouthAmerica.5.Totreatwaterasapreciousresource.6.5liters7.50liters8.500litersPartIIICityrecyclingAa.2b.4c.3d.1B1.130,000/80%2.Plastic/glass/tincans/newspapers3.Recycletruckpickitup.4.Oneofcommunity’srecyclingcenters5.Eachweekday6.Conductstoursoftheplant7.3/48.Sodtoothercompaniesthatmakethemintodifferentproducts9.Madeintonewcontainers10.OneofthetopfiveintheUSA