Unit 2 Words and expressions1.diet. N. 日常饮食。V. 节食 教材原句：Everybody has to eat,but do you eat a heathy diet? go/be on a diet: 节食 eg:Mary thinks she is so fat that she has to go on a diet. diet 指通常吃的食物，尤其指规定的食谱（ 治疗疾病或减轻体重的食物） food: 指人或动物所需食物或植物所需养 料。 eg:we cannot suevive without food and water. 2.balance n 天平；平衡；结余，余额 v.平衡；权衡 You ought to have a balanced state of mind. You have to balance the advantages of living in the countryside against the disadvantages. 你得权衡一下住在乡下的好处和坏处。 keep ones balance 保持平衡
