阅读下面的短文,把A—E五个句子填入文中空缺处(50—54),使短文内容完整正确,然后完成第55题.
Plantsareimportantlivingthings.Lifecouldnotgooniftherewerenoplants.
50Butanimalsandmencan'tmakefoodfromthem.51Menliveonplantsandanimalstoo.Soanimalsandmenneedplantstolive.52Ifyoulookcarefullyattheplantsaroundyou,youwillfindtherearemanykindsofplants.53Mostplantsaregreen.Someplantshavemanysmallleaves;othershaveonlyafewlargeleaves.54Theyaredifferentinshapes(形状)andcolors.
Excepthavingdifferentshapesandcolors,leavesarealsodifferentinotherways.Someleaveshaveshortstalks(叶柄)whileothershavelongones,someothershavenostalksatall.
A.Thatiswhywefindtherearesomanyplantsaroundus.
B.Therearemanykindsofleaves.
C.Animalsgettheirfoodbyeatingplantsandotheranimals.
D.Thisisbecauseplantscanmakefoodfromair,water,andsunlight.
E.Someplantsarelargewhileothersaresmall.
55.Whichisthebesttitle(题目)forthispassage?
A.PLANTSB>PLANTSANDWATERC>PLANTLEAVESD>MANANDPLANTS