ACoolWaytoKeepCoolWeallknowthatfoodswilleasilygobadiftheygettoowarm.Soweusuallyputthemintoourfridgestokeepcoolinhotweather.Butcanyoumakeitwithoutfridges?

　　ACoolWaytoKeepCool

　　Weallknowthatfoodswilleasilygobadiftheygettoowarm.Soweusuallyputthemintoourfridgestokeepcoolinhotweather.Butcanyoumakeitwithoutfridges?

　　In1995AbbaateacherfromNigeriafoundacoolway.HisinventionwascalledPot-in-PotCoolingSystem.

　　Itusestwoclaypots(陶罐).Thereisasmallerpotinsidealagerone.Thespacebetweenthetwopotsisfilledwithwetsand.Fruitvegetablesordrinkscanbeputintothesmallerpot.Awetclothcoversthewholecoolingsystem.Somefoodscanbekeptfreshforseveralweeksinit.

　　Abbabuiltfivethousandpot-in-potsystemsforthevillagersinhishometown.Thenpeoplealloverthecountrybeganusingtheinvention.SoonitbecamepopularwithfarmersinotherAfricancountries/

　　In2000Abbagotaprize---theRolexAward.Ifyouaretryingtodosomethingtoimprovehumanlifeyoumayhavethechancetogetthisprize.

　　1.______fromNigeriainventedthePot-in-PotCoolingSystem.

　　A.Ateacher B.Acook C.Ascientist D.Aworker

　　2.InthePot-in-PotCoolingSystemyoushouldputfruitanddrinks______.

　　A.underthewetsand B.outsidethelargerpot

　　C.betweenthetwopots D.insidethesmallerpot

　　3.Abbabuiltfivethousandpot-in-potsystemstohelp________.

　　A.hisfamily B.hisstudents C.thevillagers D.theschool

　　4.ManyfarmersinAfricancountiesusedAbba’sinventionto______.

　　A.storewetcloth B.getwarm

　　C.keepfoodsfresh D.winaprize