2025年高中英语阅读理解基础测试题题库 .pdfVIP

不飞则已，一飞冲天；不鸣则已，一鸣惊人。——《韩非子》

一、高中英语阅读理解

1．阅读理解

Everyyearmigratory(迁徙的)batstravelfromMexicotoBrackenCave,wheretheyspendthe

summerconsuminginsectsthatwouldotherwisehungrilyeatcommonfoodcrops.Butthebats

havebeenshowingupfarearlierthantheydidtwodecadesago.

2017.TheydiscoveredthecreatureswereleavingtheirwinterquartersinMexicoearlierand

reproducingsooner.Theywerealsoastonishedtofindincreasingnumbersofbats

overwintering(过冬)atBrackenCaveinsteadofheadingbacktotheircoldweatherquartersin

Mexico.Overwinteringisasignthatwarmertemperatureschangethebatsannualrhythms,

RothamstedbiologistPhillipStepaniansays.

AseparatestudyofmigratorybatsinIndiana,publishedlastyear,foundthattemperature

variationsaffectedarrivalanddeparturetimes—likewisehintingatthepotentialinfluenceof

study,saysearlyarrivalattheirsummerhabitats(栖息地)couldexposethesebatstocold

snaps(寒流),andtheycouldfreezetodeath.

JoyOKeefeandhercolleaguesalsofoundthatchangingbatmigrationtimescanalsoclash

struggletofeedtheirpups(幼崽)orskipreproductionaltogether,OKeefesays.Shefearsthis

shiftcouldcauseMidwesternbatstodecreasetowardextinction,whichwouldbebadnewsfor

humans.Declinesinbatpopulationscouldhavesevereeffectsforcropsuccess,shesays,

addingthatbatsalsocontrolsignificantdiseasevectors,suchasmosquitoes.

colonytomigrateearlier.Theyhavefoundadirectlinkbetweenseasonaltemperaturesandbird

Andthereareothercomplications.“Batsaremysteriouslittleanimalsthatmovemostlyatnight

mightbehappening,butreallytyingittothecauseisthenextstep.

（1）ScientistsatRothamste