2022年研究生考试英语一真题及答案解析.pdfVIP

操千曲尔后晓声，观千剑尔后识器。——刘勰

2022年研究生入学考试英语（一）试题及解析

SectionIUseofEnglish

Directions:

Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,

B,CorDontheANSWERSHEET.(10points)

Theideathatplantshavesomedegreeofconsciousnessfirsttookrootintheearly2000s;

theterm“plantneurobiology”was__1__aroundthenotionthatsomeaspectsofplant

behaviorcouldbe__2__tointelligenceinanimals.__3__plantslackbrains,thefiringof

electricalsignalsintheirstemsandleavesnonethelesstriggeredresponsesthat

__4__consciousness,researcherspreviouslyreported.

Butsuchanideaisuntrue,accordingtoanewopinionarticle.Plantbiologyiscomplex

andfascinating,butit__5__sogreatlyfromthatofanimalsthatso-called__6__ofplants’

intelligenceisinconclusive,theauthorswrote.

Beginningin2006,somescientistshave__7__thatplantspossessneuron-likecellsthat

interactwithhormonesandneurotransmitters,__8__“aplantnervoussystem,__9__tothat

inanimals,”saidleadstudyauthorLincolnTaiz,“They__10__claimedthatplantshave

“brain-likecommandcenters”attheirroottips.”

This__11__makessenseifyousimplifytheworkingsofacomplexbrain,__12__itto

anarrayofelectricalpulses;cellsinplantsalsocommunicatethroughelectricalsignals.

__13__,thesignalinginaplantisonly__14__similartothefiringinacomplexanimalbrain,

whichismorethan“amassofcellsthatcommunicatebyelectricity,”Taizsaid.

“Forconsciousnesstoevolve,abrainwithathreshold__15__of