专题一阅读理解[做真题·感悟高考]________________真题体验__透视命题规律TheengineersattheMassachusettsInstituteofTechnology(MIT)havetakenitastepfurther—changingtheactualcompositionofplantsinordertogetthemtoperformdiverse，evenunusualfunctions.Theseincludeplantsthathavesensorsprintedontotheirleavestoshowwhenthey'reshortofwaterandaplantthatcandetectharmfulchemicalsingroundwater.“We'rethinkingabouthowwecanengineerplantstoreplacefunctionsofthethingsthatweuseeveryday，”explainedMichaelStrano，aprofessorofchemicalengineeringatMIT.Oneofhislatestprojectshasbeentomakeplantsglow(发光)inexperimentsusingsomecommonvegetables.Strano'steamfoundthattheycouldcreateafaintlightforthree­and­a­halfhours.Thelight，aboutone­thousandthoftheamountneededtoreadby，isjustastart.Thetechnology，Stranosaid，couldonedaybeusedtolighttheroomsoreventoturntreesintoself­poweredstreetlamps.Inthefuture，theteamhopestodevelopaversionofthetechnologythatcanbesprayedontoplantleavesinaone­offtreatmentthatwouldlasttheplant'slifetime.Theengineersarealsotryingtodevelopanonandoff“switch”wheretheglowwouldfadewhenexposedtodaylight.Lightingaccountsforabout7%ofthetotalelectricityconsumedintheUS.Sincelightingisoftenfarremovedfromthepowersource(电源)—suchasthedistancefromapowerplanttostreetlampsonaremotehighway—alotofenergyislostduringtransmission(传输)．Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.[语篇解读]主题：人与自然(人与动植物)。话题：植物的积极作用。本文是一篇说明文。文章介绍了绿色植物对人类社会和工作效率的积极作用，同时还介绍了科学家们新开发的植物的不寻常的功能：检测地下水质和发光照明。本文旨在提倡重视对植物的研究，发掘并利用好植物的“神奇用途”，与大自然的植物和谐共生。32．Whatisthefirstparagraphmainlyabout?A．Anewstudyofdifferentplants.B．Abigfallincrimerates.C．Employeesfromvariousworkplaces.D．Benefitsfromgreenplants.解析：段落大意题。根据第一段的主题句(第二句)“Recentstudieshavefoundpositiveeffects.”可知，最近的研究发现了植物的积极作用。答案：D33．WhatisthefunctionofthesensorsprintedonplantleavesbyMITengineers?A．Todetectplants'lackofwater.B．Tochangecompositionsofplants.C．Tomakethelifeofplantslonger.D．Totestchemicalsinplants.解析：细节理解题。根据第二段第二句“Theseincludeplantsthathavesensorsprintedontotheirleavestosho