[单选题]资料：ThefederalgovernmentonWednesdayrecommendedanendangered-specieslistingfortheloggerheadturtlesinU.S.Waters,adecisionthatcouldleadtotighterrestrictionsonfishingandothermaritimetrades.Environmentalgroupswho’dbeenpushinganendangeredlistingsaidtheproposalwasa“turningpoint”theyhopewillleadtogreaterturtleprotections.
“Ithinkit’shugedayforloggerheadseaturtles,”saidBethRiff,amarinewildlifescientistatOceana.“itreallydrawsattentiontothefacttheseturtlesarenotdoingwellandmoreneedstobedonetoprotectthem.”Withallthatattentiontopaidtothem,you’dthinkthesecreatureswouldatleasthavethegratitudenottogoextinct,butNatureisindifferenttohumannotionsoffairness.Noonereallyknowshowmanyloggerheadthereare,orhowmanyarebeingkilledbyfishinggearorotheractivities.Riffcitesa40percentdropinthenumberofnestingfemalesinFloridaoverthelastdecadeasevidenceoftrouble.
Loggerheadsarenamedfortheirlargeheads,whichcontainpotentjawsthatcancrushthehardshellsofpreysuchasconch.Theturtlesareaboutthesizeofafistwhentheyhatchandmakeafrenzieddashtothesurf.Buttheytypicallygrowtomorethanthreefeetinlengthand250pounds.Theanimalcanlogthousandsofmilesasittravelsacrossoceans.
BarbaraSchoder，nationalseaturtlecoordinatorforNOAA’sfisheriesdivision,saidthebiggestthreatstotheNorthPacificloggerheadincludedamagetoprimarynestingsites,whicharemainlyinJapan，aswellasaccidentalsnaringoftheturtlesinfishinggear.AndreaTeeofSanFrancisco-basedCenterforBiologicalDiversitysaidtheturtlesgethookedbyHawaiianlonglinefishermentargetingswordfishandtunaandcanbeinjuredordrowned.OntheEastCoast,themainthreattoturtlesisgearfromtheregion’svariousfishenesSchodersaid.
Aprimarybenefitoftheendangeredstatuswouldbeincreasedpublicpressureonprotectingthespecies,Riffsaid.Butthegovernmentwouldalsohavetodetermine“criticalhabitats，”suchaswheretheturtlesreproduceorforage.Suchplacescouldbesubjecttoadditionalprotectionsfortheturtles,includingrestrictionsonmaritimedevelopmentorfishing.
Likeeveryotherenvironmentalissuetoday,thisisplayingoutagainstthebackgroundofglobalwarmingandhumaninterferencewithnaturalecosystems,Thenarrowstripsofbeachonwhichtheturtleslaytheireggsarebeingsqueezedononesidebydevelopmentandontheotherbythreatofrisingsealevelsastheoceanswarm.Ultimatelywemustgetahandleonthoseissuesaswell,oracreaturethatoutlivedthedinosaurswillmeetitsendatthehandsofhumans,leavingourdescendantstowonderhowcreaturesouglycouldhavewonsomuchaffection.
Howdoesglobalwarmingaffectthesurvivalofturtles?
A
It threatens the sandy beaches on which sea turtles lay eggs
B
The rising climate makes it difficult for their eggs to hatch
C
The rising sea levels make it harder for their hatchlings to grow
D
It takes them longer to adapt to the high temperature in the beach
正确答案：A
题目解析
本题考查的是细节理解。
【关键词】how;globalwarmingaffectthesurvivalofturtles
【主题句】最后一段Thenarrowstripsofbeachonwhichtheturtleslaytheireggsarebeingsqueezedononesidebydevelopmentandontheotherbythreatofrisingsealevelsastheoceanswarm.蠵龟产卵的狭窄沙滩正在日益缩减，原因一方面是人类发展占地，另一方面是海洋变暖海平面上升带来的威胁。
【解析】本题的问题是“全球变暖如何影响了蠵龟的生存”。选项A意为“它威胁着海龟产卵的沙滩”；选项B意为“气候不断升高使它们的卵孵化困难”；选项C意为“海平面上升使它们的幼体难以成长”；选项D意为“需要更长时间才能适应海滩的高温”。根据主题句可知，全球变暖，海洋变暖，水平面上升，沙滩变小，蠵龟能产卵的区域变小了。A选项“它威胁到蠵龟产卵的沙滩”正确。
