6、rkerfromJorhat,India.Overthepast38years,hehasplantedtreesonasandbar(沙洲)oftheBrahmaputraRiverandhas(36) C itintoaforest.Onedayin1979,16﹣year﹣oldPayengwaswalking(37) A thebankoftheBrahmaputraRiver.Hesawmanysnakesonthesandbars.Thesesnakesdiedinafewdays'time(38) B theh
7、eatandtheabsenceoftrees.Payengfeltvery(39) B whenhesawthis.Hedecidedtoplantsometrees.Single﹣handedly,hestartedplantingbambootrees,asonlybambootreescouldsurvive(存活)inthesandbars.Towaterthetreeswasadifficult(40) A foroneman.Withhishardworkandgreateffort,daybydaythe(4
8、1) C bambootreesgrewintoaforest.Histreeplantinghaschangedthesoil(土壤).Nowthesandbarisathickforestand(42) C tothousandsofplantsandanimals.Alargegro