发布时间 : 星期日 文章2017年高考英语一轮复习Unit2Healthyeating讲含解析新人教版必修3更新完毕开始阅读bfb65a22b9f67c1cfad6195f312b3169a551ea76
Unit 2 Healthy eating
单元知识预览 项目 单词及其词性变化（语法填空必备） 1．burst vi.爆裂；爆发 n．突然破裂，爆发 2．event n．事件；大事 3．nation n．民族；国家；国民→national adj.国家的，民族的→nationality n．国籍 4．ruin n．废墟；毁灭 vt.毁灭；使破产 5．suffering n．苦难；痛苦→suffer v．受苦，遭受 6．extreme adj.极度的→extremely adv. 7．injure vt.损害；伤害→injured adj.受伤的→injury n．伤害，损害 8．destroy vt.破坏；毁坏；消灭 9．useless adj.无用的；无效的；无益的→useful(反义词)→use v. & n．使用，利用 10．shock vt. & vi.(使)震惊；震动 n．休克；打击；震惊 11．rescue n. & vt.援救；营救 重点单词 12．trap vt.使陷入困境 n．陷阱；困境 13．electricity n．电；电流；电学→electric adj.用电的；带电的；发电的→electrical adj.与电有关的；电学的 14．disaster n．灾难；灾祸 15．bury vt.埋葬；掩埋；隐藏 16．shelter n．掩蔽；掩蔽处；避身处 17．damage n. & vt.损失；损害 18．frighten vt.使惊吓；吓唬→frightened adj.受惊的；受恐吓的→frightening adj.令人恐惧的 19．judge n．裁判员；法官 vt.断定；判断；判决→judgement n．判断，判决 20．express vt.表示；表达n.快车；速递→expression n．表达→expressive adj.有表现力的 1．be/go on a diet 节食 2．ought to 应当；应该 3．lose weight 体重减轻；减肥 4．get away with 被放过；(做坏事)不受惩罚 5．tell a lie 说谎 6．win...back 赢回；重新获得 7．earn one’s living 谋生 8．in debt 欠债 重点短语 9．spy on 暗中监视；侦察 10．cut down 削减；删节 11．before long 不久以后 12．put on weight 增加体重 13．glare at 怒视 14．benefit from 受益于 15．throw away 扔掉；丢弃 1．Nothing could be better... 再没有比这更好的了…… 经典句型 2．He could not have Yong Hui getting away with telling people lies! 他可不能让咏（高考书慧哄骗人们后跑掉！ 面表达必3．Why don't you sit down and try a meal? 备） 你为什么不坐下来吃顿饭呢？ 必备语法（高级句型） 晨读范文背诵 假定你是李芳，你的美国好友Jane数学学得不好，对自己失去了信心，产生了厌学情绪。请你给她发一封电子邮件开导她，要点如下：
1．没有必要过于伤心；
2．要振作起来，尽量减少焦虑心理； 3．和老师交流有助于改善自己的学习； 4．探索适合自己的有效的学习方法。 注意：1. 词数100左右；
2．可以适当增加细节，以使行文连贯。
Dear__Jane， 情态动词（2） I am sorry to hear that you don't do well in maths and have lost interest in schoolwork. Personally，maths is difficult for most students，so there is no need to feel too bad. At this moment，you should cheer up and find ways to reduce your anxiety. Why not go on an outing with your friends or find time to listen to your favourite music? If you can talk to the teachers who you respect most，they may give you some advice that helps you to improve. Probably it's time for you to explore a new learning method which is better and more suitable for you.
Anyway，I hope you can rebuild your self-confidence soon! Yours， Li__Fang
语言知识精析 重点单词精讲
考点1．diet n．日常饮食 vi. 节食
【教材原句】Everybody has to eat, but do you eat a healthy diet? 每个人都得吃，但是你吃的是健康的饮食吗？ 【例句研读】
(1) The doctor put me on a low-salt diet to reduce my blood pressure. 医生______来降低我的血压。
(2) Mary thinks she is too fat that she has to go on a diet. 玛丽认为她太胖了，得______。 【答案】(1) 控制我的饮食 (2) 节食 【归纳拓展】 be/go on a diet put sb. on a diet用规定的食谱，控制饮食 a diet of sth. 多得令人生厌的事物 辨析：diet 指通常吃的食物，尤指规定的食谱，还可作动词“节食”。
food 指人或动物所需的食物；或植物所需的养料。 We cannot survive without food and drink. 【即时巩固】
1. ________ _______ _______ _____ is bad for your health.太油腻的食物对你健康不利。 2. The doctors all suggested I ______ _______ _____ _____ .医生们都建议我节食。 3. I mustn’t have chocolate—I’m on a ______. 4. —Correct ____ is important.
—I agree. I don’t eat sweets now, for I’m on a _____.
A. diet; diet B. food; food C. diet; food D. food; diet
考点2．balance n.平衡v.平衡；权衡
【教材原句】What will happen to you if you don’t eat a balanced diet? 如果你不吃平衡的饮食会怎样呢？ 【例句研读】
(1) We must ________the good and evil of things. 我们必须权衡事物的好坏两个方面。
(2) The acrobat _________ _________ on the high rope. 杂技演员在高处的绳子上使自己保持平衡。
(3) It is difficult to ________ ___________ _______ on an icy pavement. 人行道上结了冰，要想不摔倒可不容易。
【答案】(1) balance (2) balanced himself(3) keep one’s balance 【归纳拓展】
balanced adj. 平稳的，安定的，和谐的 in the balance 悬而未决 the balance of forces 力量对比 out of balance 失去平衡 keep one's balance 保持平衡，保持镇静 lose one's balance 失去平衡，失去镇静 throw sb. off the balance 使某人失去平衡，使某人慌乱