theseedspassthroughtheirbodiesaswaste.Theanimalsdonotknowtheyareworkingfortheplantsbyplantingseedsastheytraveltodifferentplaces!(147words)UsefulWordsandExpressions:floweringadj.开花的pollenn.花粉vt.传授花粉给powderyadj,粉状的sugaryadj.含糖的,pliments奉承asugarysmile甜蜜的一笑nectarn.花蜜,ess尝成功之甜果rubv.擦,摩擦rubalong和谐相处ruboff擦掉,擦破rubout把(记号、笔记、笔迹等)擦掉 Passage19FindingtheDirectionandLocationHowcanyoutellwhichdirection?Byday,lookfortheSun.Itisintheeastinthemorningandthewestintheafternoon.Atnight,usetheBigDippertohelpyoufindtheNorthStar.passbecauseitsneedlealwayspointsnorth.Howdoyouknowhowfaryouhavegone?Youcouldcounteverystep.Eachstepisabouttwofeet.You'dbetterwearapedometerwhichisatoolthatcountssteps.Ifyouknowwhereyoustarted,whichdirectionyouareheading,andhowfaryouhavegone,youcanuseagoodmaptofigureoutexactlywhereyouare.
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