2022年考研英语一真题.pdf

2022年考研英语一真题--第1页

2022年全国硕士研究生入学统一考试英语（一）试题

SectionIUseofEnglish

Directions:

Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,C

orDontheANSWERSHEET.(10points)

Theideathatplantshavesomedegreeofconsciousnessfirsttookrootintheearly2000s;theterm

“plantneurobiology”was__1__aroundthenotionthatsomeaspectsofplantbehaviorcouldbe

__2__tointelligenceinanimals.__3__plantslackbrains,thefiringofelectricalsignalsintheir

stemsandleavesnonethelesstriggeredresponsesthat__4__consciousness,researchers

previouslyreported.

Butsuchanideaisuntrue,accordingtoanewopinionarticle.Plantbiologyiscomplexand

fascinating,butit__5__sogreatlyfromthatofanimalsthatso-called__6__ofplants’intelligence

isinconclusive,theauthorswrote.

Beginningin2006,somescientistshave__7__thatplantspossessneuron-likecellsthatinteract

withhormonesandneurotransmitters,__8__“aplantnervoussystem,__9__tothatinanimals,”

saidleadstudyauthorLincolnTaiz,“They__10__claimedthatplantshave“brain-likecommand

centers”attheirroottips.”

This__11__makessenseifyousimplifytheworkingsofacomplexbrain,__12__ittoanarrayof

electricalpulses;cellsinplantsalsocommunicatethroughelectricalsignals.__13__,thesignaling

inaplantisonly__14__similartothefiringinacomplexanimalbrain,whichismorethan“a

massofcellsthatcommunicatebyelectricity,”Taizsaid.

“Forconsciousnesstoevolve,abrainwithathreshold__15__ofcomplexityandc