Unit3Couldyoupleasecleanyourroom?SectionBR·八年级下册

n.精神压力；心理负担(1)精神压力；心理负担understress承受压力Laurahastofacelotsofstressasateenager.(2)重音；重读Thesetwowordshethesamestress.讲解短语例句讲解例句

n.浪费；垃圾v.浪费；滥用

adj.无用的；废弃的(1)名词：浪费(2)不可数名词：垃圾awasteof…浪费……(3)及物动词：浪费；滥用wastetime/money