预习 新知早知道UNIT 2 HEALTHY LIFESTYLEtobacco psychology cue facilitate surgeon drug dizzy sugary comedy refresh liberation discipline negative facilitate abused refresh skipping dizzy dynamic enhance Alcoholic physical repeatedly examination pessimistic liberation refresh specialist consultant sugary 如果不加以控制很难改变的如果我们理解了习惯是如何运作的想要促使不良习惯朝着积极的方向转化我们往往会变得悲观而放弃谢谢观看 THANK YOU!