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2021年韶关市第二中学高三英语上学期期末试卷及答案解析
第一部分阅读（共两节，满分40分）
第一节（共15小题；每小题2分，满分30分）
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
A
Birdmigrationisdescribedastheregular,seasonalmovementofbirdpopulationsfromoneplacetoanotherandbackagain.
Thelongerdaysandrichfoodofthenorthernsummerprovidegreaterchancesforbirdstofeedtheiryoung.Thelongerdaylighthoursandenormousfoodresourcesallowbirdstolaylargereggsthanthoseofrelatednon-migratoryspeciesthatremaininthetropicsallyearround.Asthedaysshorteninautumnandthebreedingperiodisover,thebirdsreturntowarmerregionswheretheavailablefoodsupplydifferslittlewiththeseasonschanging.Theadvantagesofmigrationmakeupforthehighstress,physicalexertion（消耗）,andotherrisksofthemigration.
Daylengthistheprimaryenvironmentalfactorthatencouragesbirdstoprepareformigration.Theyhaveanincreasedappetitewhichresultsinweightgaining,givingthemthefatreservesthatprovideenergyfortheirmigratoryflight.Theyalsoshowmoreactivityatnight,whichiswhenmostbirdsmigrate.Whilethelengthofdayistheprimaryreasonformigration,birdsalsorespondtotemperaturechanges.Forexample,ifaspringislateandthetemperatureislowerthannormal,birdsdelaymigration;ifaspringisearly,birdsalsobeginmigrationearly.
Thetimingofthemigratorycyclemustallowbirdstoarriveonthebreedingsitesothatthereistimetobuildabreedingplace,mate,laytheeggs,andhatchtheyoungbeforetherichfoodisavailabletofeedtheyounginthenest.Similarly,ifbirdswaituntiltheclimateintheirnorthernbreedinggroundsbecomestolerable(可忍受的,therewillbenotimetogainthenecessaryweightthatprovidestheenergyneededfortheirsouthboundmigration.
1.Whydobirdsmigratetothenorthinspring?AThetemperatureinthesouthhasrisen.B.Theyliketravelingandenjoythejourney.
C.Thesummerthereiswarmerthanthatinthesouth.
D.Theenvironmentthereismoresuitableforthemtofeedtheirbabybirds.2.Whatarethetwofactorsthatcausebirdstomigrate?A.Daylengthandfoodsupply.

B.Nightlengthandhighstress.C.Temperaturechangesanddaylength.D.Foodsupplyandtemperaturechanges.3.Whichcanbethebesttitleforthetext?A.Birds'LifeB.Birds'MigrationC.Birds'BreedingHabitsD.Birds'LivingEnvironment
B
BerthavonSuttnerreceivedtheNobelPeacePrizein1905—shewasthefirstwomantoreceiveit,andalsotheinspirationforthecreationoftheNobelPrize.
ShemetAlfredNobel,arichmillionaire,byansweringhisnewspaperadforasecretary.Althoughsheonlyworkedforhimforafewweeks,sheremainedgoodfriendswithAlfredNobelforthenext20years.WhenshebecameinvolvedinthepeacemovementinEurope,shepromisedtokeepNobelinformedofitsprogress.WhenAlfredNobeldiedin1896,hiswillincludedtheestablishmentofapeaceprize,thankstoBerthavonSuttner’sinfluence.
BerthavonSuttnerwasborninanaristocratic(贵族militaryfamily,butshespentthesecondhalfofherlifeworkingforpeace.Shewrotebooks,attendedpeaceconferences,gavelecturesandhelpedorganizepeacesocietiesinAustria,GermanyandHungary,aswellastheInternationalPeaceBureauinSwitzerland.HernovelLayDownyourArms,wasoneofthemostinfluentialanti-warbooksofalltime,andhelpedtomakeheraleaderofthepeacemovementinEurope.Itsendtowarthemewasboththeambition(抱负andthemostimportantgoalinthelifeofthisgreatwoman.
BerthavonSuttnerworkedsohardforpeacebecauseshebelievedthataterriblewarwouldbreakoutinEuropeifnationsdidn’tworkhardtoestablishlastingpeaceinstitutions.Shemademanymajorachievementsforamorepeacefulworld,buttwomonthsaftershedied,WorldWarIbrokeout.AhundredyearsaftershewontheNobelPeacePrize,nationsstillseemtoviewwarasachoicetoworkouttheirproblems.ButlikeBerthavonSuttnerdid,manytodayareworkinghardaroundtheworldtohelpstrengthenpeaceinstitutionsandspreadtheideathatit’stimetoputanendtowar.
4.WhichofthefollowingistrueaboutBerthavonSuttner?A.SheworkedforAlfredNobelfor20years.

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