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2025高考英语大二轮专题强化练高考题型组合练作业13 人与动植物类说明文 .docx

2025高考英语大二轮专题强化练高考题型组合练作业13 人与动植物类说明文 .docx

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2025高考英语大二轮专题强化练高考题型组合练作业13人与动植物类说明文作业13人与动植物类说明文

A

(2020·全国Ⅰ)

Theconnectionbetweenpeopleandplantshaslongbeenthesubjectofscientificresearch.Recentstudieshavefoundpositiveeffects.AstudyconductedinYoungstown,Ohio,forexample,discoveredthatgreenerareasofthecityexperiencedlesscrime.Inanother,employeeswereshowntobe15%more①productivewhentheirworkplacesweredecoratedwithhouseplants.

TheengineersattheMassachusettsInstituteofTechnology(MIT)havetakenitastepfurther—changingtheactualcompositionofplantsinordertogetthemtoperformdiverse,evenunusualfunctions.Theseincludeplantsthathavesensorsprintedontotheirleavestoshowwhenthey’reshortofwaterandaplantthatcandetectharmfulchemicalsingroundwater.“We’rethinkingabouthowwecanengineerplantstoreplacefunctionsofthethingsthatweuseeveryday,”explainedMichaelStrano,aprofessorofchemicalengineeringatMIT.

Oneofhislatestprojectshasbeentomakeplantsglow(发光)inexperimentsusingsomecommonvegetables.Strano’steamfoundthattheycouldcreateafaintlightforthree-and-a-halfhours.Thelight,aboutone-thousandthoftheamountneededtoreadby,isjustastart.Thetechnology,Stranosaid,couldonedaybeusedtolighttheroomsoreventoturntreesintoself-poweredstreetlamps.

Inthefuture,theteamhopestodevelopaversionofthetechnologythatcanbesprayedontoplantleavesina②one-offtreatmentthatwouldlasttheplant’slifetime.Theengineersarealsotryingtodevelopanonandoff“switch”wheretheglowwouldfadewhenexposedtodaylight.

Lightingaccountsforabout7%ofthetotalelectricityconsumedintheUS.Sincelightingisoftenfarremovedfromthepowersource—suchasthedistancefromapowerplanttostreetlampsonaremotehighway—alotofenergyislostduring③transmission.Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.

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