一单元traffic light,cross,go out,or,out,road,make a noise,rubbish,underground,station,wait,wait for,drink,smoke.二单元felt pen,glue,paper,tape,a pair of scissors,want,rice,noodles,vegetable,picnic,sandwish三单元shoe,sock,uniform,need,let's(=let us),salt,bowl,spoon,for,dear,buy,cheap,wear不客气