【江苏专版】2020高考英语二轮复习与策略讲练 第1部分 专题3 类型6　生态环保 含解析.doc

《【江苏专版】2020高考英语二轮复习与策略讲练 第1部分 专题3 类型6　生态环保 含解析.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、类型6

2、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.Inthe1

3、980s，electricallinesandleadpoisoning(铅中毒)nearlydrovethemtodyingout.Now，electricshocktrainingandmedicaltreatmentarehelpingtorescuethesebigbirds.Inthelate1980s，thelastfewcondorsweretakenfromthewildtobebred(繁殖)．Since1992，therehavebeenmultiplereintroductionstothewild，an

4、dtherearenowmorethan150flyingoverCaliforniaandnearbyArizona，UtahandBajainMexico.Electricallineshavebeenkillingthemoff.“Astheygointorestforthenight，theyjustdon'tseethepowerlines，”saysBruceRideoutofSanDiegoZoo.Theirwingscanbridgethegapbetweenlines，resultinginelectrocu

5、tion(电死)iftheytouchtwolinesatonce.Soscientistshavecomeupwithashockingidea.Tallpoles，placedinlargetrainingareas，teachthebirdstostayclearofelectricallinesbygivingthemapainfulbutundeadlyelectricshock.Beforethetrainingwasintroduced，66%ofset－freebirdsdiedofelectrocution.

6、Thishasnowdroppedto18%.Leadpoisoninghasprovedmoredifficulttodealwith.Whencondorseatdeadbodiesofotheranimalscontaininglead，theyabsorblargequantitiesoflead.Thisaffectstheirnervoussystemsandabilitytoproducebabybirds，andcanleadtokidney(肾)failureanddeath.Socondorswithhig

7、hlevelsofleadaresenttoLosAngelesZoo，wheretheyaretreatedwithcalciumEDTA，achemicalthatremovesleadfromthebloodoverseveraldays.Thisworkisstartingtopayoff.Theannualdeathrateforadultcondorshasdroppedfrom38%in2000to5.4%in2011.Rideout'steamthinksthattheCaliforniacondors'ave

8、ragesurvivaltimeinthewildisnowjustundereightyears.“Althoughthesemeasuresarenoteffectiveforever，theyarevitalfornow，”hesays.“Theyaretrulygoodbirdsthatarewortheveryeffortweputintorecoveringthem.”63．Californiacondorsattractresearchers'interestbecausethey________．A．areac

9、tiveatnightB．hadtobebredinthewildC．arefoundonlyinCaliforniaD．almostdiedoutinthe1980s64．Researchershavefoundelectricallinesare________．A．bl