高考英语 Unit2《Healthy eating》知识与要点课件 新人教必修3.pptVIP

;;1．diet n．日常饮食；规定饮食；vi. 节食 归纳拓展 keep a balanced diet保持饮食平衡 be/go on a diet 节食 put sb.on a diet限制某人的饮食 People who are on a diet mustn't have chocolate. 正在节食的人不能吃巧克力。 No sugar in my coffee，please.I'm dieting. 请不要给我的咖啡放糖，我在节食。 ;同类辨析 diet 与 food (1)diet 指“惯常的或规定的食物”，特指维持健康的定量或定质的食物，又指疗养时规定的食物。常用于表示病人、犯人、减肥者等的食物。它是可数名词，其前需加不定冠词。 (2)food 一般用语，凡是能吃能喝的具有营养的东西都可称为 food。它是不可数名词，但在表示食品的不同种类时，可以用复数。 The doctor has ordered me a special diet. 医生给我安排了一套特殊的饮食。 We must have food to eat and clothes to wear. 我们必须要有食物吃，有衣服穿。;【链接训练】 用 diet 和 food 填空 ①The Chinese ______ is considered to be the healthiest in the world. ②People eat different kinds of ________ which can change into energy. ③The sick man can't live without ________，but he must have a ________ without sugar. 【答案】　①diet　②food　③food；diet;2．balance n. 天平；平衡；余额；v. 平衡；权衡 归纳拓展 (1)keep one's balance 保持平衡 lose one's balance 失去平衡，心慌意乱 off balance 失去平衡的；没有站稳定的 on balance 考虑过一切以后，总的说来 a sense of balance平衡感 keep a balance between A and B 保持A与B平衡 (2)balance A against B 权衡/比较A与B (3)balanced adj.保持平衡的;He kept his balance with his arms on top of the wall. 他在墙上用双臂保持平衡。 I think on balance I prefer the new system. 总的说来，我觉得自己更喜欢新体制。 You should balance the advantages against the disadvantages before your final decision. 在作出决定之前，你一定要权衡利弊。;【链接训练】 If you want to learn skating，it is important to learn ________ yourself. A．to keep to balance　　 B．to keep balancing C．to keep skating D．to keep to skate 【解析】　考查动词balance的用法和句意理解。因为从选项中看，在结构方面B、C两项均是正确的，keep后面须接动名词。对于学习滑冰而言，坚持练习固然重要，但更重要的是学会保持平???。而C项的意思是“学会不断地滑”，显然不合句意，故答案为B。 【答案】　B;3．lie (1)n. 谎话；谎言 a white lie 善意的谎言 tell a lie/lies to sb.对某人说谎 (2)v. 说谎(lie－lied－lied－lying) lie to sb.向某人说谎 (3)vi.位于，躺(lie－lay－lain－lying) lie down 躺下 There lies...某地有……;诱导展望 (1)当lie表示“位于”时，lie in指“位于……范围内”；lie on指“与……相邻；接壤；紧挨着”；lie to指“不接壤；隔……相望”。 (2)lay vt.放；搁；下(蛋)；产(卵)(laid－laid－laying) lay the table for dinner 摆桌子吃饭 lay eggs 下蛋;It is no wonder that she lied to the court. 难怪她对法庭撒了谎。 Sichuan lies in the southwest of