Iwouldliketotalktoyouaboutspacevegetables，andtoshowyouthatspacevegetablesarehealthyandgoodforyou．
Spacevegetablesaregrownfromseeds（种子） thathavebeentakentoandbroughtbackfromouterspace．Theseedsareaffectedbyradiationandlowgravityinouterspace．WhentheyarebroughtbacktotheEarth，theseseedsproducevegetablesthatarebigger，healthierandmorenutritious （有营养的）thannormalvegetables．However，somepeopleworryabouteatingspacevegetables．Theythinkthatspacevegetablesmightnotbegoodforusandcouldgiveuscancerasaresultoftheirexposure （暴露）toradiationinspace．Peopleshouldnotbescared，asspacevegetablesareactuallyperfectlyhealthy．
Herearesomefactsthatyoushouldknowaboutspacevegetables：
Spacevegetablesaregrownfromseeds that are carefully selected．Whenseedsarebroughtbackfromspace，peopletesttheseedstomakesurethatthevegetablestheygrowwillbesafetoeat．Therearenotracesofradiationaftertesting．
Spacevegetables are better for you thannormalvegetables．Forexample，spacetomatoesstayfreshfortwentydays，whichisoneweeklongerthannormaltomatoes．Anotherpopularspacevegetableisthepepper（辣椒）．Spacepepperscontain20percentmoreVitaminCthannormalpeppers．
Aftergeneticallymodified（改进的） foodscomeontothemarket，peopleworrythattheyareeatingunknownthings．Forexample，ifnutgenesareputinsidepotatoes，peopleallergic（对…过敏） tonutsmightgetverysickfromeatingthesepotatoesbecausetheydonotknowtheyarealsoeatingnuts．Unlikegeneticallymodifiedfoods，spacevegetableshavenotbeengeneticallychanged．Thismeansthatnonewgenesareputintothevegetables．Therefore，theywon'tdamageyourhealth．