Inmostpartsoftheworld,manystudentshelptheirschoolsmakelesspollution（污染）.Theyjoin“16”.Inameaningful（有意义的）club,peopleworktogether17ourenvironmentclean.Herearesomethingsstudentsoftendo.

　　No-garbage（废料,垃圾）lunches.Howmuchdoyouthrowaway18lunch?Environmentclubsaskstudentstobringtheirlunchesinbagsthatcan19again.Everyweek,theywillchoosetheclassesthatmaketheleastgarbageandreportthemtothewholeschool.

　　No-carday.Onano-carday,20comestoschoolinacar.Neitherthestudentsnortheteachers!Carsgivepollutiontotheair（空气）.21remember:walk,jump,bikeorrun.Useyourlegs!It'slotsoffun.

　　22thewater!Didyouknowthatsometoilets（厕所）could23twentytofortycubic（立方的）metresofwateranhour?Inayear,toyour24,thatwouldfillasmallriver!Inenvironmentclubs,studentsrepairthosebrokentoilets25.

　　Weloveourenvironment.Letsworktogetherandmakeitclean.

　　（）16.A.no-cardayB.environmentclubsC.newmusicgroupsD.no-garbagelunches

　　（）17.A.makeB.makingC.tomakeD.willmake

　　（）18.A.sinceB.untilC.beforeD.after

　　（）19.A.useB.beusedC.throwD.bethrown

　　（）20.A.somebodyB.anybodyC.everybodyD.nobody

　　（）21.A.SoB.AndC.ButD.Or

　　（）22.A.TurnonB.TurnupC.TurnoffD.Turndown

　　（）23.A.wasteB.giveC.keepD.throw

　　（）24.A.surpriseB.surprisedC.surprisingD.surprisingly

　　（）25.A.theirB.theyC.themD.themselves