拓展：balanced diet 均衡饮食; be/go on a diet 节食；减肥

活用：完成句子

I've been pigging out all winter and now I've got to ___________. (节食减肥)

Summary:_________________________________________________________________

2. balance n& vt harmonious arrangement or relation of parts or elements within a whole or the action to achieve such a state

教材原句：According to my research, neither your restaurant nor mine offers a balanced diet. (P15)

例句：1) Can you balance on one foot?

2) To cool herself and regain mental balance, she went out of the room and had a walk in the garden.

拓展:

in balance 在平衡状态；be out of balance 不平衡; keep one's balance 保持平衡；lose one's balance 失去平衡；

活用：说出balance在下列句子中的含义和词性。

1) This school aims to balance the amount of time spent on arts and science subjects.

2) You had better balance the pros and cons(利弊) before making a final decision.

3) We should make great efforts to keep the balance of nature.

4) It is important for children to have a balanced diet.

Summary:_________________________________________________________________

3. raw adj. unprocessed or manufactured using only simple or minimal processes.

教材原句： There were few choices of food and drink on it: just rice, raw vegetables served in vinegar, fruit and water. (P10)

例句: 1) Minnesota law permits raw milk sales on the farm at which the milk was produced.

2) China is a very big consumer of oil, food and all kinds of raw materials.

拓展:raw material 原材料;in the raw 处于自然状态；未开化的

活用:完成句子：Tom 不吃生蒜。____________________________

Summary: __________________________________________________________

4. limit vt restrict or confine; n. the greatest possible degree of something.

教材原句：I don't want to upset you, but I found your menu so limited that I stopped worrying