新高考时文阅读51积极干预，应对珊瑚白化word版.docx

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1、时文阅读，积极干预，应对珊瑚白化地球上许多珊瑚礁曾经生机勃勃，如今却像骷髅一样矗立在世界各地的海岸线上。但珊瑚白化不仅仅是审美上的损失，更是海洋生态系统的衰退和全球气候的灾难性变化阅读短文并回答问题Coralreefsaredyingatunprecedentedrates.Risingseawatertemperaturesareincreasingthefrequencyofcoralbleaching（珊瑚白化）eventsandoceanacidificationmakesitharderforcoralstogrowandmai

2、ntaintheirstructures.Sincethe1980s,tropicalcoralreefcoveragehasdeclinedbyabout30percentto50percent.Tocombatthis,avarietyof“interventions（干预）”arebeingdevelopedbyscientistsacrosstheworld,whichcouldrestorereefs.AnewreportfromtheNAS(NationalAcademiesofSciences)hasexamined23of

3、themostimportantofthesetoolstodeterminewhicharereadytouseandwhichneedmoretimeandanalysis.Theresearchersbehindthereporthavealsodevelopedadecision-makingframeworkthatcanbeusedbypolicymakersandlocalcommunitiestodecidewhichmethodismostpracticalfortheirparticularecosystem。Step

4、henPalumbiwhochairedthe12-membercommitteebehindthereportpointstotheuseofheat-resistantcoralsastheinterventiontechniquethatcurrentlyhasthemostpotentialtobescaledup.Theprocessinvolveslocatingcoralsthatarenaturallymoreresistanttoheatandthengrowingtheminnurseriestolaterbeplan

5、tedorcrossbred（杂交）.That’sprobablytheinterventionthatisworkingbest.Nevertheless,whenitcomestoprotectingreefs,onesizedoesnotfitall.Thekeymessageofthereportisthatdifferentwayswillworkindifferentplaces.Inparticular,Palumbinotesthatit’sessentialtoworkwithlocalgroups.“Somecommu

6、nitiesmightreallywanttheircoralsrestoredbecausetheywantthefish,”hesays.“Inthatcaseyouwouldrestorethecoralsthatprotectandencouragefish.Anothercommunitymightbelookingatthewavesrollinginandsay‘whatweneedisprotectionfromwaveaction.’”Despitethewondersofinnovationandscience,the

7、reremainsnobetterwaytoprotectreefsthantopreventtheirdestructioninthefirstplace.Scientistsknowthateveryintervention,howeverwell-intentioned,couldhaveconsequencesfortheecologicalbalanceofecosystems.What’smore,notechniquecanprotectcoralsindefinitelyunlesstheoceanisprotected.

8、Withoutreducingemissions,withoutcreatingaworldwhereCO2isbeginningtodropbytheendofthecentury,cora