資源描述：
《高考英語三輪沖刺真題周周練（八）》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、高考真題周周練（8）閱讀理解APassengerpigeons(旅鴿)onceflewovermuchoftheUnitedStatesinunbelievablenumbers.Writtenaccountsfromthe18thand19thcenturiesdescribedflocks(群)solargethattheydarkenedtheskyforhours.Itwascalculatedthatwhenitspopulationreacheditshighestpoint,thereweremorethan3billionpassengerpigeons—anumber
2、equalto24to40percentofthetotalbirdpopulationintheUnitedStates,makingitperhapsthemostabundantbirdintheworld.Evenaslateas1870whentheirnumbershadalreadybecomesmaller,aflockbelievedtobe1milewideand320miles(about515kilometers)longwasseennearCincinnati.Sadly,theabundanceofpassengerpigeonsmayhavebeenth
3、eirundoing.Wherethebirdsweremostabundant,peoplebelievedtherewasanever-lastingsupplyandkilledthembythethousands.Commercialhuntersattractedthemtosmallclearingswithgrain,waiteduntilpigeonshadsettledtofeed,thenthrewlargenetsoverthem,takinghundredsatatime.Thebirdswereshippedtolargecitiesandsoldinrest
4、aurants.Bytheclosingdecadesofthe19thcentury,thehardwoodforestswherepassengerpigeonsnestedhadbeendamagedbyAmericans’needforwood,whichscattered(驅(qū)散)theflocksandforcedthebirdstogofarthernorth,wherecoldtemperaturesandspringstormscontributedtotheirdecline.Soonthegreatflocksweregone,nevertobeseenagain.
5、In1897,thestateofMichiganpassedalawprohibitingthekillingofpassengerpigeonsbutbythen,nosizableflockshadbeenseeninthestatefor10years.ThelastconfirmedwildpigeonintheUnitedStateswasshotbyaboyinPikeCounty,Ohio,in1900.Foratime,afewbirdssurvivedunderhumancare.Thelastofthem,knownaffectionatelyasMartha,d
6、iedattheCincinnatiZoologicalGardenonSeptember1,1914.21.Inthe18thandearly19thcenturies,passengerpigeons______.A.werethebiggestbirdintheworldB.livedmainlyinthesouthofAmericaC.didgreatharmtothenaturalenvironmentD.werethelargestbirdpopulationintheUS22.Theunderlinedword“undoing”probablyreferstothepig
7、eons'______.A.escapeB.ruinC.liberationD.evolution23.Whatwasthemainreasonforpeopletokillpassengerpigeons?A.Toseekpleasure.B.Tosaveotherbirds.C.Tomakemoney.D.Toprotectcrops.24.WhatcanweinferaboutthelawpassedinMichigan?A.Itwasi
