Morethanfourmillionpeoplearoundtheworldarebittenbysnakeseachyear．Atleast125，000ofthesepeopledie，whilealmostthreemillionothersareseriouslyinjured．Doctorsandresearcherssaywedonothaveenoughgoodtreatmentsforp

　　Morethanfourmillionpeoplearoundtheworldarebittenbysnakeseachyear．Atleast125，000ofthesepeopledie，whilealmostthreemillionothersareseriouslyinjured．Doctorsandresearcherssaywedonothaveenoughgoodtreatmentsforpoisonoussnakebites．Tohelpimprovethesituation，aninternationalprojectcalledtheGlobalSnakebiteInitiative（GSI）hasbeenformed．

　　Poisonoussnakebitesaremostcommoninruralareasofdevelopingcountrieswithhotclimates．ManyofthevictimsareagriculturalworkersandchildreninAsiaandSouthernAfrica．Shortagesofantivenommedicine，thetreatmentforsnakebite，arecommonthere，whileexistingsuppliesmaybeoflowquality，orinappropriatetolocalneeds．

　　DoctorHerbertWinkelofGSIsaysantivenomtreatmentisalsotoocostlyformanyofthepoorpeoplewhoneeditmost．TheInitiativeistryingtoincreasetheavailabilityofhighqualityantivenomtreatmentandimprovemedicaltraining．Anothergoalistohelpmanufacturersofantivenommedicinesimprovetheirproducts，whilealsoteachcommunitiesaboutsnakebitesandfirstaid．Itwantsmoreresearchandbetterreportingsystems，andaimstohelpnationalhealthofficialschooseantivenomappropriatefortheircountries．

　　Thedrugsaredevelopedfromthevenomofpoisonoussnakes．Forexample，laboratoryworkersinCostaRicamaycollectvenom（毒液）fromhighlypoisonousFerdeLancesnakesinordertomakeantivenomforthesnake'sbite．However，theantivenomthatcuresthebiteofonekindofsnakemaynotbeeffectiveforthatofanother，andtreatmentforacobrabiteinthePhilippinesmaynotworkforsomeonebittenbyasimilarsnakeinWestAfrica．

　　Expertslookforwardtoimprovementsintheworldwidetreatmentofsnakebite，butsaythatthebestwaystoreducedeathsandinjuriesfromsnakebitesareeducationandprevention．

　　33．What'sthemainideaofthetext？___

　　A．TheworkGSIisdoingtoimprovesnakebitetreatment．

　　B．Howtotellpoisonoussnakesfromcommonones．

　　C．Howtotreatthesnakebitesonthespot．

　　D．Thepresentsituationofsnakebitetreatmentinpoorcountries．

　　34．WhichofthefollowingfunctionsareperformedbytheGSI？___

　　a．Helpingtoimprovetheabilitytoproduc