题目（My favourite subject我最喜欢的科目） 三十至四十个词
第1个回答 2013-08-16
Plants Plantsareveryimportantlivingthings.Lifecouldnotgooniftherewerenoplants.Thisisbecauseplantscanmakefoodfromair,waterandsunlight.Animalsandmancannotdoso.Animalsgettheirfoodbyeatingplantsandotheranimals.Mangetshisfoodbyeatingplantsandanimals,too.Therefore,animalsandmanneedplantsinordertolive. Ifyoulookcarefullyattheplantsaroundyou,youwillfindthattherearemanytypesofplants.Someplantsarelargewhileothersaresmall.Mostplantsaregreen. Therearetwomaintypesofplants:floweringplantsandnonfloweringplants. Floweringplantshaveroots,stems,leaves,flowersandfruits.Almostallthetreesaroundusarefloweringplants.Youcanprobablyrecognizesomeplantsfromtheirflowersortheirfruits. Nonfloweringplantsincludeconiferoustrees,mosses,liver-worts,algaeandfungi.Youcannotseemanynonfloweringplantsaroundyou. Mostplantsdonotgrowfromseeds.Theygrowfromspores.Sporesarevery,verysmall.Somesporesaresosmallandlightthattheycanfloatintheair.Wemaysaythatsporesarequitesimilartoseeds.Whenthesesporesfallonwetandshadyplaces,theyusuallygrowintonewplants. 采纳我的~~
