Itisimportanttobealwiththerubbishincities.

　　Ourworldwascolorful,beautifulandfulloflife.Buttheseyears,peoplehavebuiltmanyfactoriesalongrivers.Manytreeshavebeencutdown.Manyanimalshavelosttheirhomes.Factoriescausepollution.Riversbecomepolluted.

　　Asastudent,youshoulddoeverythingsinyoureverydaylifetoprotectthem.

　　First,stopwastingmorewater.

　　Second,throwwastethingsintodifferentdustbins.Forexample,wastepapershouldbethrowintopaperrecyclablebins.

　　Third,stopcuttingdowntrees.Instead,plantmore.

　　Fourth,pickupgarbageintheparkorontheroadwhenwearefree.

　　Last,callonmoreandmorepeopletopayattentiontocontrllingpollution.

　　Inaword,everybodyhashisdutytoprotecttheworld.