世纪金榜圆你梦想-1-温馨提示此题库为Word版请按住Ctrl滑动鼠标滚轴调节合适的观看比例点击右上角的关闭按钮可返回目录。考点3阅读理解一科普知识类Passage12010·全国卷I·CAlongtheriverbanksoftheAmazonandtheOrinocotherelivesabirdthatswimsbeforeitcanflyflieslikeafatchickeneatsgreenleaveshasthestomachofacowandhasclaws爪onitswingswhenyoung.Theybuildtheirhomesabout4.6mabovetheriveranimportantfeature特征forthesafetyoftheyoung.Itiscalledthehoatzin.Inappearancethebirdsofbothsexeslookverymuchalikewithbrownonthebackandcreamandredontheunderside.Theheadissmallwithalargesetoffeathersonthetopbrightredeyesandblueskin.Itsnearestrelativesarethecommonbirdscuckoos.Itsmoststrikingfeaturethoughisonlyfoundintheyoung.Babyhoatzinshaveaclawontheleadingedgeofeachwingandanotherattheendofeachwingtip.Usingthesefourclawstogetherwiththebeak喙theycanclimbaboutinthebusheslookingverymuchlikeprimitivebirdsmusthavedone.Whentheyounghoatzinshavelearnedtoflytheylosetheirclaws.DuringthedriermonthsbetweenDecemberandMarchhoatzinsflyabouttheforestingroupsof20to30birdsbutinAprilwhentherainyseasonbeginstheycollecttogetherinsmallerlivingunitsoftwotosevenbirdsforproducingpurposes.世纪金榜圆你梦想-2-63WhatisthetextmainlyaboutAHoatzinsindryandrainyseasons.BTherelativesandenemiesofhoatzins.CPrimitivebirdsandhoatzinsoftheAmazon.DTheappearanceandlivinghabitsofhoatzins.64Younghoatzinsaredifferentfromtheirparentsinthat_________AtheylooklikeyoungcuckoosBtheyhaveclawsonthewingsCtheyeatalotlikeacowDtheyliveonriverbanks65WhatcanweinferaboutprimitivebirdsfromthetextATheyhadclawstohelpthemclimb.BTheycouldflylongdistances.CTheyhadfourwingslikehoatzins.DTheyhadaheadwithlongfeathersonthetop.66WhydohoatzinscollecttogetherinsmallergroupswhentherainyseasoncomesATofindmorefood.BToprotectthemselvesbetter.CTokeepthemselveswarm.DToproducetheiryoung.【答案解析】63【解析】选D。主旨大意题。文章主要介绍了thehoatzin它是生活在亚马逊河的麝雉。介绍了这种鸟的外表特征以及生活习性。故选D。64【解析】选B。细节理解题。根据第三段的第一句Babyhoatzinshaveaclawon世纪金榜圆你梦想-3-theleadingedgeofeachwingandanotherattheendofeachwingtip.与此段的最后一句Whentheyounghoatzinshavelearnedtoflytheylosetheirclaws.可知幼鸟有爪子而老一些的鸟没有。故选B。65【解析】选A