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1、2014高考英语文章阅读类：2013暑假练习题（17）及答案解析第二部分：阅读理解（第一节20小题，第二节5小题；每小题2分，满分50分）第一节：阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。（A）（文章选自ChinaDaily，题目）XI'AN-China'sconservationworkfortheendangeredcrestedibis（朱鹮）isfacingnewchallenges,includinganincreasingdeathrateduetoinbreeding（同系繁殖）,andtheconflictb
2、etweentheneedtoexpandnaturalhabitatsandlocalcommunities'economicinterests,birdexpertshavewarned.Thecrestedibis,oncewidespreadinJapan,China,RussiaandtheKoreanPeninsula,almostbecameextinctinthefirsthalfofthe20thcentury.Before1981,whensevencrestedibiswereaccidentallyfoundinYangxiancounty,inNorthw
3、estChina'sShaanxiprovince,academicsthoughtthespecieshadbeenextinctinChinaforalmost17years.Duetothehugeeffortputintospeciesprotectionsince1981,thenumberofcrestedibisinChinahasrisentoanestimated1,617,including997inthewild,theStateForestryAdministrationsaidatameetingoncrestedibisprotectioninXi'an
4、onMonday.However,althoughtheibispopulationexceeds1,000,thebirdsarestillnotfreefromthethreatofextinction,saidFangShengguo,directoroftheStateConservationCenterforGeneResourcesofEndangeredWildlifeatZhejiangUniversity.Ornithologistsusedinbreedingintheearlystagesofprotectionsothatnumbersoftheprecio
5、usbirdscouldincreasequickly,butthatmethodhadconsequences,Fangsaid."Studieshaveprovedthatasaresultofinbreeding,crestedibishavethelowestgeneticdiversityofallendangeredbirds,"Fangsaid."Itmeansahighdeathrateandmorephysicaldefectsforhatchedchicks."Thegovernmentshouldcollectgeneticinformationfromall
6、crestedibisandestablishageneticdatabaseassoonaspossible,thendesignascientificmatingplanforthespecies,Fangsaid.Sofar,about90percentofcrestedibisliveinShaanxiprovince,andfewerthan140ibisliveinthreezoosinotherpartsofthecountry,includingBeijingZoo,accordingtoLiuDongping,anassistantresearcherattheN
7、ationalBirdBandingCenterofChina,whichisaffiliatedtotheChineseAcademyofForestry.Thebirdhaslosttheabilitytomigrate,hesaid,addingthatifanunexpectednaturaldisasteroccurredinShaanxiprovinceoraninfectiousdiseasespreadthroughthearea,theibispop
