阅读下面短文,把A~D四个句子填入文中空缺处(1-4),使短文内容完整,然后完成第5题。
Plantsareveryimportant.1.________Butanimalsandmancan'tmakefoodfromair,waterandsunlight.Animalscangettheirfoodbyeatingplantsandotheranimals.2.________Soanimalsandmanneedplantsinordertolive.Thisiswhytherearesomanyplantsaroundus.
3.________floweringplantsandnon-floweringplants.Almostallthetreesaroundusarefloweringplants.Youcanknowsometreesfromtheirflowersandfruits.Non-floweringplantsdonotgrowflowers.Youcannotseemanynon-floweringplantsaroundyou.Ifyoulookcarefullyattheplantsaroundyou,youwillfindthattherearemanykindsofplants.Someplantsarelargeandsomearesmall.4.________.
B.Mangetshisfoodbyeatingplantsandanimals,too.
C.Thisisbecauseplantscanmakefoodfromair,waterandsunlight.
D.Therearetwokindsofplants,
1.____
2.____
3.____
4.____
5.Thearticletellsusthat____.
A.weshouldnotprotectplants
B.plantsareveryimportantforusandanimals
C.allplantshaveflowers
D.wecannotfindnon-floweringplants
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