专题限时训练(三十四)[史地自然型阅读理解(二)](限时：25分钟)(一)Severalanimalspeciesincludinggorillas(大猩猩)inRwandaandtigersinBangladeshcouldriskextinctionifimpactofclimatechangeandextremeweatherontheirhomesisnothandled,aUNreportshowedonSunday.ReleasedduringthecourseofglobalclimatenegotiationsinDurban,thereportbytheUnitedNationsFoodandAgricultureOrganisation(UNFAO)showshowhighertemperatures,theriseinsealevels,deforestationandoveruseoflandhavedamagedthehabitatsofcertainspecies,especiallyinAfrica.“Manyecosystemshavealreadybeenaffectedbyincreasingpopulation,historicalandrecentdeforestation,shortlastingmanagementpracticesandeveninvasivespecies”，EduardoRojas,assistantdirectorgeneralattheUNFAO'sforestrydepartment,saidatthereleaseofthereport.Themostaffectedareasincludemountains,islandsandcoastalareas,whichlimitthepossibilitiesforanimalstomoveelsewhereandcreatenewhabitats.“Theremainingpopulationsarelimitedtoverysmallecosystems.Theyhaveinbreeding(近亲繁殖)problems,andattheendthesespeciesmaydisappear”，headded.OtherexamplesofaffectedanimalsincludeelephantsinMali,lionsinSerengetiandcrocodilesinMalawi.Thereportsaysabout20～30percentofplantandanimalspecieswillbeathigherriskofextinctionduetoglobalwarmingandasignificantnumberoflocalspeciesmaydisappearby2050asaconsequence.Otherconsequencescouldincludethespreadofinvasivespeciesandinfectiousdiseases,itsaid.Thereporturgesmorefocusonrestorationofdamagedecosystems,especiallythosekeytodealingwithclimatechangesuchasinlandwaters,forestsandgrasslands.TheUNFAOalsocalledforthecreationofmovementchannelsforanimalsinareaswheretheirmovementwasaffected.Theorganizationsaidwhilemoreresources(资源)wereflowingtobiodiversityconservation,moreactionatthegovernmentandpolicylevelwasneeded.Italsourgeslocalcommunitiestodevelopprojectsthateasetheeffectofclimatechangeonwildlife,namingeco-tourismactivitiesasanexample.1.WhatdoestheauthortellusinParagraph2?A.ThethemeofglobalclimatenegotiationsinDurban.B．ThesubjectofresearchdonebyEduardoRojas.C．Harmfuleffectsofdamagedonetoecosystems.D．Causesofdamagedonetoecosystems.2.Whyareanimalslivinginmountains,islandsandcoastalareasmostaffected?A.Theyarefrequentlyattackedbyinvasivespeciesandinfectiousdiseases.B．Theyhavedifficultyfindingenoughfoodforsurvival.C．Theyhavelittlechanceofmovingtootherplaces.D．Theycanhardlyfindmatestoproducetheiryoung.3.Toavoidextinctionofsomeanimalspecies,theUNFAOsuggestedallthefollowingwaysEXCEPT________.A.restoringdamagedecosystemsB．limitingworldpopulationgrowthC．creatingmovementchannelsforanimalsD．urginggovernmentsandlocalcommunitiestotakeaction4.Whatwouldserveasthebesttitleforthepassage?A.ClimatechangeandecotourismB．HumanactivitiesandtheanimalkingdomC．Gorillas,tigersatriskduetoclimatechangeD．Howtobalancehumandevelopmentandanimalrights(二)DeathValley,oneofAmerica'sgreatnationalparks,isaplaceofstrangeandsilentbeauty.Asbeautifulasthisplaceis,itsnameprovidesevidenceofveryrealdanger.DeathValleyisalandofbeautifulyetdangerousextremes.Therearemountainsthatreachmorethan3,000metersintothesky.ThereisaplacecalledBadwaterthatisthelowestareaoflandintheWesternHemisphere.Iftherewerewaterthere,itwouldbe86metersbelowtheleveloftheocean.DeathValleycanbedangerouslycoldduringthewintermonths.StormsinthemountainscanproducesuddenfloodingontheflooroftheValley.Theairtemperatureduringthesummerhasbeenashighas57...
