人教版高中英语必修3精品教案Unit - 2 - - Healthy - eating

Unit 2 Healthy eating

单元要点预览（旨在让同学整体了解本单元要点） 词语 1. diet / food 2. offer / provide / supply 3. strength / power / force 辨析 4. glare / stare / glance 1. health n. 健康 healthy adj.健康的；有益healthily adv. 健康地 健康的 2. sugar n.糖 vt.在……中 sugary adj. 甜的，含糖 加糖 的；甜言蜜语的 3. curiosity n. 好奇心 curious adj. 好奇的 curiously adv. 好奇地 词形 4. weakness n.虚弱，衰弱， 软弱；弱点，缺点 变化 5. strength n. 力气；长处 weak adj.虚弱的；(能力等)差的；微弱的 strengthen vt. 加强； 巩固 digestion n.消化(力) weaken v.(使)变弱，(使)减弱 strong adj. 强壮的；牢固的 digestive adj.消化的，易消化的 6. digest vt.消化；吸收，领 悟 n.文摘 7. benefit v.& n. 有益于； beneficial adj. 有益的 得益于；利益，好处 1. balance n. 天平，平衡；余额，余数 v. 平衡；权衡 2. curiosity n. 好奇心 重点 3. limit vt.&n. 限制；限定 单词 4. benefit vt. 有益于；vi. 得益于(常与from, by连用) n. 利益，好处；津贴 5. combine vt.&vi. (使)联合；结合 1. be tired of 对……厌烦了 2. ought to aux. 应当；应该(没有人称和数的变化，后接动词原形) 3. lose weight体重减轻；减肥 重点 4. get away with偷携某物潜逃；受到（较轻的惩罚）或逃避惩罚 词组 5. tell a lie 说谎 6. earn one’ s living谋生 7. in debt 欠债 8. before long 不久以后 1. Nothing could be better. 2. Something terrible must have happened if Maochang was not coming to eat with his as 重点句子 he always did. 3. He couldn’ t have Yong Hui getting away with telling people lies. 重点语法 1．情态动词的完成式的用法 2．双重性情态动词的用法（见语法部分） 语言要点（模块） Ⅰ.词语辨析 (旨在提供完形填空所需材料) 1. diet / food 【解释】 diet 指通常吃的食物，尤指规定的食谱[如治疗疾病或减轻体重的食物]，还可作动词“节食”。常用搭配：be/get/go on a diet 进行节食 put sb. on a diet限制某人的饮食 food 指人或动物所需的食物；或植物所需的养料。 词汇 部分

【练习】根据句子意思用diet，food的适当形式填空。 1). We cannot survive without _______ and drink. 2). The doctor says I’ ve got to go on a _______. 3). The doctor put me on a low-salt _______ to reduce my blood pressure. Keys: 1). food 2). diet 3). diet 2. offer / provide / supply 【解释】 offer“提出，提供，呈现”，表示向别人提供帮助，服务或物品。 搭配：offer to do sth / offer sb sth /offer sth to sb provide“供给，提供，装备，准备”，强调有预见，并通过储存或准备的方式为某事做准备，以在需要时提供所需物品。搭配：provide sb with sth / provide sth for sb supply“供给，补充，弥补”，表示替换或不足所需之物以及弥补缺陷，满足要求的意思；也作名词，“供给(量)，物资，存货”。搭配：supply sb with sth / supply sth for/to sb 【练习】根据句子意思填介词或用offer，provide，supply的适当形式填空。 1). The project is designed to _______ young people _______work. 2). He _______ to lend me some books. 3). He _______ me 300 dollars _______ that television. 4). We ______ power to the three nearby towns. Keys: 1). provide; with 2). offered 3). offered; for 4). supply 3. strength / power / force 【解释】 strength 用于身体指力气力量；用于物体指承受或抗拉的强度；也可指长处。 power用于人体、机械或风时指可应用的能量，也可指电力、权力和能力。 force用于爆炸、风暴或打击时指释放的能量及其对物体的冲击力；也可指暴力。 【练习】根据句子意思用strength，power，force的适当形式填空。 1). I will do everything in my _______ to help you. 2). We can use the _______ of the wind to make electricity. 3). He used all his _______ to lifted the heavy box. 4). The soldiers took the prisoners away by _______. Keys: 1). power 2). power 3). strength 4). force 4. glare / stare / glance 【解释】 glare at sb. 对某人怒视，怒目而视 stare at sb. (由于惊奇、害怕、生气或深思而睁大眼睛) 对某人凝视，盯着看 glance at sb. 对某人瞥一眼，粗略地看，浏览 【练习】根据句子意思用glare，stare，glance的适当形式填空。 1). She _______ shyly at him and then lowered her eyes. 2). The two boys _______ at each other before they fought. 3). My father_______ at the stranger for a long time as if they had known each other before. Keys: 1). glanced 2). glared 3). stared Ⅱ.词形变化（旨在提供语法填空所需材料） 1. health n. 健康 healthy adj.健康的；有益健康的 healthily adv. 健康地 2. sugar n.糖 vt.在……中 加糖 3. curiosity n. 好奇心

sugary adj. 甜的，含糖的；甜言蜜 语的 curious adj. 好奇的 curiously adv. 好奇地

4. weakness n.虚弱，衰弱， 软弱；弱点，缺点 5. strength n. 力气；长处 6. digest vt.消化；吸收，领 digestive adj.消化的，易消化的 悟 n.文摘 7. benefit v.& n. 有益于； beneficial adj. 有益的 得益于；利益，好处 【练习】用括号内所提供词的适当形式填空。 1). You look much ________ (health) than before. 2). The boy had burning ________ (curious) about what was going on. 3). The government decided to take some measures to _________ (strength) the economy. 4). Fresh air is ________ (benefit) to one’ s health. 5). Mike was the ________ (strength) boy in his class. 6). It’ s that ________ (sugar) smile of his that I can’ t bear - it makes me want to puke! 7). It’ s important to know your own strengths and ________ (weak). 8). Vegetables are usually cooked to aid ________ (digest). Keys: 1). healthier 2). curiosity 3). strengthen 4). beneficial 5). strongest 6). sugary 7). weaknesses 8). digestion Ⅲ.重点词汇（旨在提供词汇综合运用材料）

1. balance n. 天平，平衡；余额，余数 v. 平衡；权衡 balanced adj. 均衡的 [典例]

1). Try to achieve a better balance between work and play. 争取把工作和娱乐更好地结合起来。 2). I must check my bank balance (= find out how much money I have in my account). 我要核对一下我在银行的余额（看我的帐户上有多少钱）。

3). Try to balance your diet by eating more fruit and less protein. 多吃些水果, 少摄入些蛋白质, 使饮食均衡合理。 [重点用法]

a balanced diet 均衡的饮食 keep the balance of nature保持生态平衡 keep one’ s balance保持平衡 lose one’ s balance (= be out of balance) 失去平衡 [练习] 用balance短语填空或翻译。

1). He ______ ______ ______ and hurt himself when he went upstairs. 2). It is difficult to for you to ______ ______ _______ on an icy pavement. 3). 我们必须权衡利弊才做出决定。

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Keys: 1). lost his balance 2). keep your balance 3). We must balance the advantages against the disadvantages before we decide.

2. curiosity n. 好奇心 curious adj. 好奇的 curiously adv. 好奇地 [典例]

1). Children have a natural curiosity about the world around them. 小孩子对他们周围的世界有着天生的好奇心。 2). I opened the packet just to satisfy my curiosity. 我打开包裹只是为了满足我的好奇心。 [重点用法]

out of curiosity 出于好奇 with curiosity = curiously好奇地 be curious about sth. 对某事好奇 be curious to do sth. 好奇地做某事 [练习] 用curiousity的短语或其适当形式填空。

weak adj.虚弱的；(能力等)差的；微弱的 strengthen vt. 加强； 巩固 digestion n.消化(力) weaken v.(使)变弱，(使)减弱 strong adj. 强壮的；牢固的

1). Margaret looked at him _______ _______.

2). She decided to try a cigarette _______ _______ _______.

3). All the employees in this firm _______ _______ ______ the personal life of the general manager. 4). ________ enough, he had never seen the little girl.

3). ________ drove Mary to open her husband’ s letter though she knew it was wrong.

Keys: 1). with curiosity 2). out of curiosity 3). are curious about 4). Curiously 5). Curiosity

3. limit vt. 限制；限定 n. 界限；限度 limited adj. 有限的 limitless adj. 无限制的 [典例]

1). The speed limit on this road is 70 mph. 这条路的车速限制是每小时70英里。 2). We must try and limit our expenditure. 我们必须设法限制我们的开支。

3). There’ s a limit to how much I’ m prepared to spend. 我准备花多少钱是有限度的。 [短语归纳] limit短语：

limit sb./sth. to... 限制某人/某事到某种程度 put a limit on... 对……限制 there is a limit to对……是有限的 without limit 无限地，无限制地 [练习] 用limit的短语或其适当形式填空。 1). One’s energy is ______.

2). ______ ______ ______ ______ (没有止境) what you can do if you try. 3). We must _______ our weekly expenditure ______ ten pounds. 4). Only a _______ number of places are available.

Keys: 1). limited 2). There’ s no limit to 3). limit; to 4). limited

4. benefit vt. 有益于 vi. 得益于（常与from, by连用） n. 利益，好处；津贴

1). The rain benefits the plants. = The plants benefit from the rain. 这场雨有益于植物。 2). This dictionary will be of great benefit to me. 这本字典将对我有很大的好处。 3). He said he would starve rather than beg for food. 他说他宁愿挨饿也不要饭吃。 4). The enemy is trying to starve us to death. 敌人正在企图饿死我们。 [重点用法]

be of great benefit to = be very beneficial to 对……有益

for the benefit of = for sb’ s benefit为了……的利益 benefit from 从……中受益 [练习] 用benefit或其短语的适当形式填空。 1). The new highway will ________ the villagers. 2). He will _________ the new way of studying.

3). The warning sign was put there _________ the public.

Keys: 1). benefit 2). benefit from 3). for the benefit of

5. combine vt.&vi. (使)联合；结合 combination n. 联合；结合 combined adj. 联合起来的 [典例]

1). We can’t always combine work with pleasure. 我们并不总是能在工作中享受到乐趣。

2). Circumstances have combined to ruin our plans for a holiday. 各种情况凑在一起破坏了我们的假日计划。 [短语归纳] combine的短语：

combine with sb./ sth. 与某人某物结合起来 combine together联合起来 combine A with/and B 使A与B联合起来

[练习] 用combine的短语或其适当形式填空。 1) A _______ of factors led to her decision to resign.

2) Success was achieved by the _______ efforts of the whole team. 3) As a writer, he _______ wit _______ passion.