类型6|生态环保考查要点方法技巧1.生态环保的现状，造成的影响。2．生态环境被破坏的因素，产生的后果。3．保护生态环境的措施、步骤。1.理清文章的行文结构，把握主旨大意。2．抓住造成生态环境变迁的原因这一主线。3．领会作者所透露出的观点态度。(2016·北京高考·C)CaliforniaCondor'sShockingRecoveryCaliforniacondorCaliforniacondorsareNorthAmerica'slargestbirds，withwing－lengthofupto3meters.Inthe1980s，electricallinesandleadpoisoning(铅中毒)nearlydrovethemtodyingout.Now，electricshocktrainingandmedicaltreatmentarehelpingtorescuethesebigbirds.Inthelate1980s，thelastfewcondorsweretakenfromthewildtobebred(繁殖)．Since1992，therehavebeenmultiplereintroductionstothewild，andtherearenowmorethan150flyingoverCaliforniaandnearbyArizona，UtahandBajainMexico.Electricallineshavebeenkillingthemoff.“Astheygointorestforthenight，theyjustdon'tseethepowerlines，”saysBruceRideoutofSanDiegoZoo.Theirwingscanbridgethegapbetweenlines，resultinginelectrocution(电死)iftheytouchtwolinesatonce.Soscientistshavecomeupwithashockingidea.Tallpoles，placedinlargetrainingareas，teachthebirdstostayclearofelectricallinesbygivingthemapainfulbutundeadlyelectricshock.Beforethetrainingwasintroduced，66%ofset－freebirdsdiedofelectrocution.Thishasnowdroppedto18%.Leadpoisoninghasprovedmoredifficulttodealwith.Whencondorseatdeadbodiesofotheranimalscontaininglead，theyabsorblargequantitiesoflead.Thisaffectstheirnervoussystemsandabilitytoproducebabybirds，andcanleadtokidney(肾)failureanddeath.SocondorswithhighlevelsofleadaresenttoLosAngelesZoo，wheretheyaretreatedwithcalciumEDTA，achemicalthatremovesleadfromthebloodoverseveraldays.Thisworkisstartingtopayoff.Theannualdeathrateforadultcondorshasdroppedfrom38%in2000to5.4%in2011.Rideout'steamthinksthattheCaliforniacondors'averagesurvivaltimeinthewildisnowjustundereightyears.“Althoughthesemeasuresarenoteffectiveforever，theyarevitalfornow，”hesays.“Theyaretrulygoodbirdsthatarewortheveryeffortweputintorecoveringthem.”63．Californiacondorsattractresearchers'interestbecausethey________．A．areactiveatnightB．hadtobebredinthewildC．arefoundonlyinCaliforniaD．almostdiedoutinthe1980s64．Researchershavefoundelectricallinesare________．A．blockingcondors'journeyhomeB．bigkillersofCaliforniacondorsC．restplacesforcondorsatnightD．usedtokeepcondorsaway65．AccordingtoParagraph5，leadpoisoning________．A．makescondorstoonervoustoflyB．haslittleeffectoncondors'kidneysC．canhardlybegottenridoffromcondors'bloodD．makesitdifficultforcondorstoproducebabybirds66．Thispassageshowsthat________．A．theaveragesurvivaltimeofcondorsissatisfactoryB．Rideout'sresearchinterestliesinelectricengineeringC．theeffortstoprotectcondorshavebroughtgoodresultsD．researchershavefoundthefinalanswerstotheproblem语篇解读：本文是一篇说明文。美国加利福尼亚秃鹰由于触电和铅中毒而濒临灭绝，研究人员采取了一些措施来挽救秃鹰，从而使这一种群渐渐恢复了生机。长难句解读：SocondorswithhighlevelsofleadaresenttoLosAngelesZoo，wheretheyaretreatedwithcalciumEDTA，achemicalthatremovesleadfromthebloodoverseveraldays.分析：本句为复合句。主语部分有with短语作定语，where引导的定语从句修饰前面的LosAngelesZoo，achemical为calciumEDTA的同位语，其后是that引导的定语从句。翻译：于是，体内含有高剂量铅的秃鹰被送往洛杉矶动物园。在那里，用一种名为EDTA的钙物质为其治疗，这是一种化学药物，能够在几天时间内清除血液中的铅。63．D[推理判断题。根据第一、二段内...
