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1、阅读猜测词义训练---高三英语备课组AEaster(复活节)isstillagreatdayforworship,candyinbasketsandrunningaroundtheyardfindingeggs,buteveryyearitgetsquiteabitworseforbunnies.Andno,notbecausethekidsliketopulltheirears.Theculpritisclimatechange,andsomeresearchersfoundthatrisingtemperaturesarehavingharmfuleffect
2、sonatleastfivespeciesofrabbitintheUS,TaketheLowerKeysMarshrabbit,forinstance.AnendangeredspeciesthatlivesintheLowerFloridaKeys,thisspeciesofcottontailisagreatswimmer--itlivesontheislands!--butitisalreadyseverelyaffectedbydevelopmentandnowbyrisingsealevels.AccordingtotheCenterforBiolog
3、icalDiversity,anoceanlevelriseofonly0.6meterswillsendthese~ysjumpingtohighergroundanda0.9-meterrisewouldwipeouttheirhabitat(栖息地)completely.Thesnowshoehare,ontheotherhand,hasacolorissue.Mostoftheserabbitschangetheirfurcolorfromwhiteinthewintertimetobrowninthesummer,eachdesignedtogiveth
4、embettercoverfrompredators(~I~’)~Asthenumberofdayswithsnowdecreasesallacrossthecountry,however,moreandmorebunniesarebeingleftinwhitefurduringbrowndirtdaysofbothfallandspring,makingthemaneasiermarkforpredators.Researchersknowthatthecolorchangeiscontrolledbythenumberofhoursofsunlight,bu
5、twhethertherabbitwillbeabletoadaptquickenoughtosurviveisabigquestion.TheNationalWildlifeFederationhasreportedthathuntershavenoticedtheirnumbersarealreadymarkedlydown.Americanpikasorrockrabbits,arelativeofrabbitsandhares,mightbethefirstofthesespeciestogoextinctduetoclimatechange. About
6、7-8incheslong,pikaslivehighinthecool.dampmountainswestoftheRockyMountains.Asglobaltemperaturesrise,theywouldnaturallymigrate(J~2~)tohigherground--buttheyalreadyoccupythemountaintops.Theycan’tgoanyhigher.TheNationalWildlifeFederationreportsthattheymightnotbeabletostandthenewtemperature
7、sastheirhabitatheatsup.Thevolcanorabbithasthesameproblem.TheserabbitsliveontheslopesofvolcanoesinMexico,andrecentstudieshaveshownthatthelowerrangeoftheirhabitathasalreadyshiftedupwardabout700meters,buttherearenotsuitableplantsforthemtomovehigher,sotheyarestuckinthemiddle. Scientistsar
8、econc
