上海市徐汇区2024届高三上学期一模英语试卷.pdf

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上海市徐汇区2024届高三上学期一模英语试卷

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PerhapsevenmoreincredibleisthatitssmackbanginthemiddleofKentucky.

MammothCaveNationalParkpreservesthisuniqueandhistoricalnaturalwonder.Aslargeasthelimestonecav

esystemis,parkofficials,estimatethere1beanother600milesofcavepassagewaysthathaveyettob

eexplored.

2thoseunexplored,morethan200cavesexistintheparkthataredisconnectedfromthelargersyst

em.

Theincrediblerockformationshaveresultedinthepark3(recognize)asaWorldHeritageSite,than

kstoitsextraordinarysizeandscientificimportance—makingitoneofonly13naturalUSsiteswiththattitle.

Thecaveswerecreatednaturallybytheprocessoflimestoneerosion,whichisknownaskarsttopography.Rai

nandriversslowlydissolveandshapesoftlimestone,whichcreatesthevastundergroundnetwork.Thesystemisstil

lbeingshapedandcarvedtoday.Notonlyaretheyastunningdestinationtovisit,butthesystemalsoprovidesdrinki

ngwaterforroughly40%oftheUSpopulation—andtheyre4historicalsignificancetoo.

Thecavesactasatimecapsulethatpreserveover5,000yearsofhumanhistory—andthecavesfirstexplorersw

ereNativeAmericans,who5(mine)theupperlevelsofMammothCave.Thankstothecavesystemsatm

osphereandnaturalprotectionfromanykindofhumandisturbance,thearchaeologicalsiteshavebeenleftingreats

hape.SeveralsetsofNativeAmericanremainshavebeenrecovered,6(provide)fascinatingevidenceo

fpre-Columbianfunerarypractices.

MammothCavewasestablishedasanationalparkthankstostronglocalsupport.Backinthe1920s,Secretaryoft

heInteriorHubertWorkcreatedtheSouthernAppalachianNationalParkCommissionin1925tos

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