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SectionA,Unit13基础知识过关检测,SectionB,SectionA,bottom,litter,ugly,cost,cruel,law,fisherman,coal,plastic,industry,afford,advantage,wooden,harmful,scientific,danger,disadvantage,reusable,solvetheproblem,cutdown,hearof,takepartin,nomore/nolonger,atthebottomof,payfor,beharmfultosb./sth.,cutoff,(be)indanger,are,trying,to,used,to,be,is,badly,polluted,make,a,difference,lead,to,scientific,are,good,for,SectionB,recycle,work,gate,bottle,president,metal,creative,pollution,recycling,probably,unusual,building,inspiration,useful,really,importance,stopdoingsth.,turnoff,throwaway,putsth.togooduse,pulldown,bringback,upsidedown,winaprize,setup,beknownfor,throw,away,thought,about,put,to,good,use,turned,upside,down,in,front,of,is,made,of,bottles,Not,only,but,also,brought,back,creativity,
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