2025年托福阅读理解长篇真题试卷：备考策略与解题方法

2025年托福阅读理解长篇真题试卷：备考策略与解题方法考试时间：______分钟总分：______分姓名：______阅读文章TheSaharaDesert,coveringmuchofNorthAfrica,isthelargesthotdesertintheworld.Itsvastexpanse,characterizedbyextremetemperaturesandminimalprecipitation,presentsachallengingenvironmentforlife.However,despitetheseharshconditions,aremarkablediversityoffloraandfaunahasadaptedtosurviveinthisaridlandscape.OneofthemoststrikingfeaturesoftheSaharaisitsseasonalvegetationpatterns.Whilethedesertisgenerallyperceivedasbarren,manyareasexperiencebriefbutintenserainyseasons,typicallyoccurringbetweenJuneandSeptemberinthesouthernregionsandOctobertoMarchinthenorthernparts.Theserainstriggerthegrowthofhardygrassesandshort-livedfloweringplants.Theseplants,oftenreferredtoas"desertannuals,"completetheirentirelifecycle—fromgerminationtoseedproduction—withinashortperiod,sometimesjustafewweeks.Thisrapidlifecycleallowsthemtotakefulladvantageofthelimitedwateravailabilitybeforethedryseasonreturns.Therootsoftheseplantsareoftendeepandextensive,enablingthemtoaccesswaterfarbelowthesurface.Additionally,manyhaveevolvedmechanismstostorewater,suchassucculentleavesorstems.AnimallifeintheSaharahasalsoevolvedsophisticatedadaptationstocopewiththedesert'schallenges.Mammalslikethefennecfoxandtheaddaxarewell-suitedtothearidenvironment.Thefennecfox,forinstance,haslargeearsthathelpdissipateheatandsensitivenostrilstodetectscarcewatersources.Itprimarilyfeedsoninsectsandsmallrodents,andcanobtainmuchofitsmoistureneedsfromitsfood.Theaddax,adesertantelope,haslonglegsthatkeepitsbodyelevatedoffthehotground,anditscoatcolorprovidescamouflageagainstthesand.Bothspeciesareprimarilyactiveduringthecoolernightandearlymorninghours.ReptilesareanotherdominantgroupofanimalsintheSahara.Speciessuchasthedesertmonitorlizardandvarioussnakespecieshaveadaptedtoregulatetheirbodytemperaturethroughbehaviorand生理structures.Manyareactiveduringtheday,utilizingthesuntowarmtheirbodiesquicklybutseekingshadeduringthehottestpartsoftheday.Theirmetabolicratesareoftenlowerthanthoseofanimalsinmoretemperateclimates,allowingthemtosurviveonlessfoodandwater.Reptilesalsotendtohaveefficientkidneysthatproduceconcentratedurine,minimizingwaterloss.InsectsformacrucialpartoftheSahara'secosystem,servingasbothpreyandpollinators.Thedesertlocust,forexample,cantravellongdistancesinsearchoffoodandwater,anditspopulationcyclescansignificantlyimpacttheregion'svegetation.Manyinsectshavedevelopedimpressivewater-conservationstrategies,suchassecretingexcesssaltsthroughspecializedglandsorremainingdormantduringthedriestperiods.ThehumanpresenceintheSaharaisalsoadaptedtothedesertenvironment.NomadicgroupsliketheTuareghavetraditionallyreliedonherdingcamels,goats,andsheep,whicharewell-equippedtotraversevastdistancesandutilizesparsevegetation.Theseanimalscangoforlongperiodswithoutdrinking,obtainingmoisturefromtheplantstheyconsume.TheTuaregthemselveshaveadaptedculturallyandphysiologicallytothehigh-altitude,hotconditionsofthedesert.Theirtraditionallifestyle,movingbetweenseasonalcamps,allowsthemtofollowtheavailabilityofresources.WhiletheSaharaisaharshenvironment,itisnotwithoutitschallenges.Climatechangeisalteringweatherpatterns,potentiallyleadingtomorefrequentandseveredroughtsinsomeareas.Humanactivities,suchasovergrazingandmining,canalsostrainthedesert'sdelicateecosystems.Conservationeffortsareincreasinglyfocusedonprotectingendangeredspeciesliketheaddaxandpreservingtraditionalknowledgeheldbyindigenouscommunities,whichoftenincludessustainableresourcemanagementpractices.Questions1.Accordingtothepassage,whatisadefiningcharacteristicoftheSaharaDesert?2.Thepassagementionsthatdesertannualscompletetheirlifecyclequickly.Whatadaptationallowstheseplantstodothis?3.Accordingtothepassage,howdofennecfoxescopewiththeheatoftheSahara?4.WhatadvantagedoreptilesintheSaharahaveovermammalsintermsoftemperatureregulation?5.WhatroledoinsectsplayintheSahara'secosystem,asdescribedinthepassage?6.ThepassagementionstheTuaregpeople.Whatisonewaytheiranimalshelpthemsurviveinthedesert?7.WhatisonepotentialconsequenceofclimatechangementionedinthepassageconcerningtheSahara?8.WhatdoesthepassagesuggestabouttherelationshipbetweenhumanactivitiesandtheSahara'secosystems?9.Accordingtothepassage,whatisanexampleoftraditionalknowledgerelatedtoresourcemanagementintheSahara?10.Whatisthemaintopicofthepassage?试卷答案1.极极端气温和最小降水量的严酷环境*解析思路：根据文章第一段第二句"Itsvastexpanse,characterizedbyextremetemperaturesandminimalprecipitation,presentsachallengingenvironmentforlife."提及撒哈拉沙漠的特点是“极端气温”和“最小降水量”，并且这些特点使其成为“挑战性环境”，因此这是其定义性特征。*解析思路：根据文章第二段第三句"Theseplants,oftenreferredtoas'desertannuals,'completetheirentirelifecycle—fromgerminationtoseedproduction—withinashortperiod,sometimesjustafewweeks."指出这些沙漠一年生植物能在“短时间内”完成生命周期，这是由它们“快速的生命周期”这一适应性特征实现的。*解析思路：根据文章第三段第三句"Thefennecfox,forinstance,haslargeearsthathelpdissipateheatandsensitivenostrilstodetectscarcewatersources."描述了沙狐通过“大耳朵帮助散发热量”来应对撒哈拉的热度。*解析思路：根据文章第四段第三句"Theirmetabolicratesareoftenlowerthanthoseofanimalsinmoretemperateclimates,allowingthemtosurviveonlessfoodandwater."提及爬行动物的新陈代谢率通常低于温带气候中的动物，这使得它们在食物和水分“更少”的情况下也能生存，这是一种温度调节上的优势，因为较低的新陈代谢率意味着它们对环境温度变化的反应可能更缓和，且能量消耗较低，有助于在极端温度下生存。*解析思路：根据文章第五段第一句"InsectsformacrucialpartoftheSahara'secosystem,servingasbothpreyandpollinators."指出昆虫作为“猎物和授粉者”在撒哈拉生态系统中扮演着关键角色。*解析思路：根据文章第六段第三句"Theseanimals[camels,goats,andsheep]cantravellongdistancesinsearchoffoodandwater,andtheirmetabolicratesarewell-suitedtothedesertenvironment,allowingthemtogoforlongperiodswithoutdrinking,obtainingmoisturefromtheplantstheyconsume."描述了这些动物能够“长途跋涉寻找食物和水”，并且它们的新陈代谢适合沙漠环境，使它们能在“很长时间内不需要饮水”，因为它们能从所吃的植物中获取水分。*解析思路：根据文章最后一段第一句"WhiletheSaharaisaharshenvironment,itisnotwithoutitschallenges.Climatechangeisalteringweatherpatterns,potentiallyleadingtomorefrequentandseveredroughtsinsomeareas."提到了气候变化正在“改变天气模式”，并可能导致某些地区出现“更频繁和更严重的干旱”。*解析思路：根据文章最后一段第二句"Humanactivities,suchasovergrazingandmining,canalsostrainthedesert'sdelicateecosystems."指出人类活动，如“过度放牧和采矿”，也会“消耗”沙漠的“脆弱生态系统”。*解析思路：根据文章最后一段最后一句"Conservationeffortsareincreasinglyfocusedonprotectingendangeredspeciesliketheaddaxandpreservingtraditionalknowledgeheldbyindigenouscommunities,whichoftenincludessustainableresourcemanagementpractices."提到了保护濒危物种如“添加角羊”以及保护由原住民社区持有的“传统知识”，这种知识通常包括“可持续的资源管理实践”。*解析思路：根据文章第一段"TheSaharaDesert,coveringmuchofNorthAfrica,isthelargesthotdesertintheworld."和全文内容概述，文章主要讨论的是撒哈拉沙漠的地理特征、其内部生物（植物、动物、昆虫）的适应性以及人类在该环境中的生存方式。核心是介绍撒哈拉沙漠这一特定环境及其生态特征。2.其根系通常很深且广泛，使它们能够深入地表以下获取水分；许多还具有储存水分的机制，例如多肉叶或茎。*解析思路：根据文章第二段第四句"Therootsoftheseplantsareoftendeepandextensive,enablingthemtoaccesswaterfarbelowthesurface."指出这些植物的根系“通常很深且广泛”，使它们能“深入地表以下获取水分”。第五句进一步说明"Additionally,manyhaveevolvedmechanismstostorewater,suchassucculentleavesorstems."指出许多植物“进化出了储存水分的机制”，例如“多肉叶或茎”。3.它们拥有大耳朵，有助于散发热量。*解析思路：根据文章第三段第三句"Thefennecfox,forinstance,haslargeearsthathelpdissipateheat..."提到了沙狐拥有“大耳朵”，这些耳朵“有助于散发热量”。4.它们可以通过行为（如利用阳光快速升温并在酷热时段寻找阴凉处）和生理结构来调节体温，许多是日行性的，利用太阳来快速升高体温，但在一天中最热的时段会寻找阴凉处。*解析思路：根据文章第四段第二句"Manyareactiveduringtheday,utilizingthesuntowarmtheirbodiesquicklybutseekingshadeduringthehottestpartsoftheday."描述了它们是“日行性的”，利用太阳“快速升高体温”，但在“一天中最热的时段会寻找阴凉处”。第三句提到"Theirmetabolicratesareoftenlowerthanthoseofanimalsinmoretemperateclimates,allowingthemtosurviveonlessfoodandwater."提及较低的新陈代谢率也是其调节方式之一，虽然不是直接回答行为和生理结构，但这是它们生理上的一个特点，有助于在极端温度下生存，减少了能量消耗，间接与体温调节有关。5.它们在撒哈拉生态系统中扮演着关键角色，既是猎物也是授粉者。*解析思路：根据文章第五段第一句"InsectsformacrucialpartoftheSahara'secosystem,servingasbothpreyandpollinators."指出昆虫是撒哈拉生态系统的“关键部分