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时间:2018-12-16
《2018届高考英语总复习 真题研练31 牛津译林版》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、真题研练31Task1:阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。(2016·北京,C)CaliforniaCondor'sShockingRecoveryCaliforniacondorsareNorthAmerica'slargestbirds,withwindlengthofupto3meters.Inthe1980s,electricallinesandleadpoisoning(铅中毒)nearlydrovethemtodyingout.Now,electricshocktrainingandmedicaltreatmentarehelpingtor
2、escuethesebigbirds.Inthelate1980s,thelastfewcondorsweretakenfromthewildtobebred(繁殖).Since1992,therehavebeenmultiplereintroductionstothewild,andtherearenowmorethan150flyingoverCaliforniaandnearbyArizona,UtahandBajainMexico.Electricallineshavebeenkillingthemoff.“Astheygointorestforthenight,theyju
3、stdon'tseethepowerlines,”saysBruceRideoutofSanDiegoZoo.Theirwingscanbridgethegapbetweenlines,resultinginelectrocution(电死)iftheytouchtwolinesatonce.Soscientistshavecomeupwithashockingidea.Tallpoles,placedinlargetrainingareas,teachthebirdstostayclearofelectricallinesbygivingthemapainfulbutundeadl
4、yelectricshock.Beforethetrainingwasintroduced,66%ofsetfreebirdsdiedofelectrocution.Thishasnowdroppedto18%.Leadpoisoninghasprovedmoredifficulttodealwith.Whencondorseatdeadbodiesofotheranimalscontaininglead,theyabsorblargequantitiesoflead.Thisaffectstheirnervoussystemsandabilitytoproducebabybirds
5、,andcanleadtokidney(肾)failureanddeath.SocondorswithhighlevelsofleadaresenttoLosAngelesZoo,wheretheyaretreatedwithcalciumEDTA,achemicalthatremovesleadfromthebloodoverseveraldays.Thisworkisstartingtopayoff.Theannualdeathrateforadultcondorshasdroppedfrom38%in2000to5.4%in2011.Rideout'steamthinkstha
6、ttheCaliforniacondors'averagesurvivaltimeinthewildisnowjustundereightyears.“Althoughthesemeasuresarenoteffectiveforever,theyarevitalfornow,”hesays.“Theyaretrulygoodbirdsthatarewortheveryeffortweputintorecoveringthem.”【语篇解读】 本文是一篇说明文。在二十世纪八十年代,加利福尼亚的秃鹫的数量在减少,原因是由于高压电线和铅中毒威胁着它们。为此科学家们采取了一系列的措施保护它
7、们,并且取得了一定的成效。1.Californiacondorsattractresearchers'interestbecausethey________.A.areactiveatnightB.hadtobebredinthewildC.arefoundonlyinCaliforniaD.almostdiedoutinthe1980s答案 D [细节理解题。根据文章第一段“Inthe1980s,electricallinesandleadpoisoni
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