课堂新坐标江苏专版2017高考英语二轮复习与策略第1部分专题3阅读理解类型6生态环保讲练 (2)

《课堂新坐标江苏专版2017高考英语二轮复习与策略第1部分专题3阅读理解类型6生态环保讲练 (2)》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.Inthe1980s，electricallinesandl

3、eadpoisoning(铅中毒)nearlydrovethemtodyingout.Now，electricshocktrainingandmedicaltreatmentarehelpingtorescuethesebigbirds.Inthelate1980s，thelastfewcondorsweretakenfromthewildtobebred(繁殖)．Since1992，therehavebeenmultiplereintroductionstothewild，andtherearenowmorethan150flyingoverCaliforniaandne

4、arbyArizona，UtahandBajainMexico.Electricallineshavebeenkillingthemoff.“Astheygointorestforthenight，theyjustdon'tseethepowerlines，”saysBruceRideoutofSanDiegoZoo.Theirwingscanbridgethegapbetweenlines，resultinginelectrocution(电死)iftheytouchtwolinesatonce.Soscientistshavecomeupwithashockingide

5、a.Tallpoles，placedinlargetrainingareas，teachthebirdstostayclearofelectricallinesbygivingthemapainfulbutundeadlyelectricshock.Beforethetrainingwasintroduced，66%ofset－freebirdsdiedofelectrocution.Thishasnowdroppedto18%.Leadpoisoninghasprovedmoredifficulttodealwith.Whencondorseatdeadbodiesofo

6、theranimalscontaininglead，theyabsorblargequantitiesoflead.Thisaffectstheirnervoussystemsandabilitytoproducebabybirds，andcanleadtokidney(肾)failureanddeath.SocondorswithhighlevelsofleadaresenttoLosAngelesZoo，wheretheyaretreatedwithcalciumEDTA，achemicalthatremovesleadfromthebloodoverseveralda

7、ys.Thisworkisstartingtopayoff.Theannualdeathrateforadultcondorshasdroppedfrom38%in2000to5.4%in2011.Rideout'steamthinksthattheCaliforniacondors'averagesurvivaltimeinthewildisnowjustundereightyears.“Althoughthesemeasuresarenoteffectiveforever，theyarevitalfornow，”hesays.“Theyaretrulygoodbirds

8、thatarewortheveryeffortweputintorecoveringthem.”63．Californiacondorsattractresearchers'interestbecausethey________．A．areactiveatnightB．hadtobebredinthewildC．arefoundonlyinCaliforniaD．almostdiedoutinthe1980s64．Researchershavefoundelectricallinesare________．A．bl