精选优质文档-倾情为你奉上Unit 1 知识归纳词汇1behave vt.&vi.举动，举止；行为表现归纳拓展(1)behave well/badly towards sb.对某人态度好/恶劣behave yourself守规矩，表现得体(2)behaviour n. U行为，举止，习性wellbehaved adj.表现好的badlybehaved adj.表现差的be on ones good/best behaviour举止规矩；行为检点put sb.on his best behaviour规劝或警告某人要规规矩矩2worthwhile adj.值得的，值得出力的同类辨析worthwhile，worth与worthy(1)worthwhile可作表语或定语，作表语时可替换为worth ones while，后接doing/to do。(2)worth只能作表语；其前常用副词well修饰。(3)worthy可作定语或表语；作定语时意为“可尊敬的，有价值的”。3observ
