② Mother a very strict diet. 妈妈严格限制我的饮食。

　③ is very important for our health. 均衡的饮食对我们的健康很重要。

(2)-Would you like some chocolate? -I'd like some，but I'm________.

　A．on diet B．in a diet C．on a diet D．in diet

　【易混辨析】 diet，food

diet指日常饮食，特定饮食，尤其是维持健康的定质定量的营养饮食。

food是食物的总称，指可以充饥的有营养的东西，常用作不可数名词，但表示食物的种类时是可数名词。用diet，food填空：

(1) cures more than the doctor.

(2)The that you bought in supermarkets is high in sugar，fat and salt.

(3)Proper and exercise are both important for health.

3、curiosity n．好奇心；求知欲 curious adj.好奇的；感兴趣的 curiously adv.好奇地

out of curiosity 出于好奇 with/in curiosity 好奇地

satisfy one's curiosity 满足某人的好奇心

be curious about 对......感到好奇 be curious to do... 好奇/想知道......；好奇地做某事

(1)用curiosity的相关短语及其适当形式填空

① The boy decided to try a cigarette .

② The girl looked at the stranger .

③ The child everything he saw.

(2)If you are_______about Australian cities，just read the book written by Dr. Johnson.

A．interested B．anxious C．upset D．curious

4、benefit v．有益于；有助于(be useful to)；受益；n.优势(advantage)；益处；成效

　benefit from 从......中受益 get benefit from从......中受益

　be of (great) benefit to (＝be beneficial to) 大有裨益，对......有益处

　for the benefit of sb.(＝for sb.'s benefit) 为了......的利益

　beneficial adj.有利的；有裨益的；受益的 be beneficial to对......有益学情诊断

(1)用benefit的适当形式填空

　① For the of them，I'll go over the plan.

　② Many companies have from the policy.

③ Fresh air is to our health.