【英语】2019届一轮复习人教版必修三Unit2Healthyeating学案

【英语】2019届一轮复习人教版必修三Unit2Healthyeating学案

‎【题目优选】‎ 目前，食品安全问题引起了人们的广泛关注。一些生产厂商为了降低成本追求利润，削减了必要的安全措施，致使一些劣质或有害食品流入市场，对人们的健康产生了极大的危害。请你就此事给一家英文报刊写封信，谈谈个人看法并呼吁整个社会关注此事。‎ 参考词汇：利润profit；安全措施safety measures ‎【经典范文】‎ Dear Sir，‎ I'm writing to talk about the problems of food safety nowadays. To reduce the cost and make more profits, some food companies don't take necessary safety measures to guarantee the food quality. As a result, more and more low quality food flows into the market, doing a lot of harm to consumers' health.‎ In my opinion, food is essential to human beings. We can not live without proper food. If no notice were taken of food safety, the health of the whole nation would suffer. So I call on the whole society to take action and put an end to the low quality food. Only in this way can we live a healthier life.‎ Yours truly，‎ Li Hua ‎【名师点拨】‎ 本文要点齐全，结构合理，词汇丰富，过渡自然。第一段提出问题、分析原因，第二段提出了应对食品安全问题的建议。分析原因时，作者运用了动词不定式短语作目的状语，take necessary safety measures, guarantee the food quality等高级词汇；在造成的后果方面，作者使用了as a result衔接，同时使用了现在分词短语作结果状语及do a lot of harm to等短语；在提出建议的描述中作者运用了条件状语从句、倒装句等复杂句式及in my opinion, be essential to, not ... without, ‎ take notice of, call on, take action, put an end to等高级词汇，增强了表达效果，较好地完成了写作任务。‎ ‎1．核心单词 ‎(1)diet (n.) 日常饮食 (vi.) 节食 ‎(2)balance (vt.) 平衡；权衡 (n.) 天平；平衡→balanced (adj.) 均衡的 ‎(3)fry (vt.&vi.) 油煎；油炸 ‎(4)ought (v. aux.) 应当；应该 ‎(5)raw (adj.) 生的；未加工的 ‎(6)strength (n.) 强项；长处；力量→strong (adj.) 强壮的；强大的→strengthen ( v．) 加强 ‎(7)consult (vt.) 咨询；请教；商量 ‎(8)debt (n.) 债；债务 ‎(9)limit (vt.) 限制；限定；(n.) 界限；限度→limited (adj.) 有限的 ‎(10)benefit (n.) 利益；好处；(vt.&vi.) 有益于；有助于；受益→beneficial (adj.) 有益的；有好处的 ‎(11)combine (vt.&vi.) (使)联合；(使)结合→combination (n.) 结合；联合体 ‎2．阅读单词 ‎(1)roast (adj.) 烤制的 (vt. &vi.) 烤；烘；烘烤 ‎(2)slim (vi.) 变细；减肥 (adj.) 苗条的；纤细的 ‎(3)curiosity (n.) 好奇心 ‎(4)hostess (n.) 女主人；女主持人 ‎(5)lie (n.) 谎话；谎言 (vi.) 说谎 ‎(6)customer (n.) 顾客；消费者 ‎(7)weakness (n.) 缺点；虚弱；弱点 ‎(8)digest (vi. &vt.) 消化 (n.) 摘要；概要 ‎(9)glare (vi.) 怒目而视；闪耀 (n.)怒视；炫目的光 ‎(10)spy (vi. &vt.) 窥探；秘密监视 (n.) 间谍；侦探 ‎【即景活用】‎ 用括号内所给单词的适当形式填空 ‎1．I forgive you this time, but never ________(lie) to me again.‎ 答案：lie ‎2．Hydrogen ________(combine) with oxygen can form water.‎ 答案：combined ‎3．With ________(limit) time and attention, we have to be careful about what we look for and what we pay attention to.‎ 答案：limited ‎4.Children are often full of ________(curious) and they take great interest in everything.‎ 答案：curiosity ‎5．A ________(balance) diet is important to health.‎ 答案：balanced ‎6．Forgiveness can be surprisingly ________(benefit) to your physical and mental health.‎ 答案：beneficial ‎7．The best way to ________(strength) willpower is to make it into a habit.‎ 答案：strengthen ‎8．They stood there, ________(glare) at each other without a word.‎ 答案：glaring ‎9．He is one of the frequent ________(customer) in the shop.‎ 答案：customers ‎10．Don't take his patience as a sign of ________(weak)．‎ 答案：weakness 联想积累 ‎1．后缀ness必备名词荟萃 ‎①weakness 虚弱；弱点 ‎②darkness黑暗 ‎③awareness意识 ‎④consciousness知觉 ‎⑤carelessness粗心大意 ‎⑥happiness高兴；幸福 ‎⑦kindness仁慈；好意 ‎⑧sadness 悲伤 ‎2．以th为后缀的名词 ‎①strength 强项 ‎②length 长度 ‎③width 宽度 ‎④depth 深度 ‎⑤death 死亡 ‎⑥warmth 温暖 ‎⑦youth 青春；青年 ‎⑧growth 成长 ‎3．各种“看”法 ‎①glare vi. 怒目而视；闪耀n. 瞪眼；怒视 ‎②glance vi. (粗略地)看一下；一瞥；扫视n．一瞥；扫视 ‎③stare vt. &vi. 凝视；盯着看n. 盯；凝视 ‎④observe vt. 看到；注意到；观察；观测；遵守，庆祝vi. 注意；观察 ‎⑤spot vt. 发现；认出 ‎⑥witness vt. 目睹；目击n. 目击者；见证人 ‎1．ought_to应当；应该 ‎2．lose_weight体重减轻；减肥 ‎3．get_away_with受到从轻发落；(做坏事)不受惩罚 ‎4．tell_a_lie说谎 ‎5．win ... back 赢回；重新获得 ‎6．earn_one's_living谋生 ‎7．in debt 欠债 ‎8．glare at 怒目而视 ‎9．spy on 暗中监视；侦查 ‎10．cut down 削减；删节 ‎11．before long 不久以后 ‎12．put on weight 增加体重 ‎【即景活用】‎ 用所给短语的适当形式填空 tell a lie， before long， lose weight， in debt， cut down， ought to ‎1．If you waste money like this, you will be ________ .‎ 答案：in debt ‎2．Every one of us can make a great effort to ________the use of energy in our country.‎ 答案：cut down ‎3．It is requested that the reporter ________be to blame for the wrong report.‎ 答案：ought to ‎4．Don't believe him. I doubt whether he was ________ .‎ 答案：telling a lie ‎5．________he came to Canada to go on with his education.‎ 答案：Before long ‎6．I spent an hour every day taking exercise for the sake of ________ .‎ 答案：losing weight 联想积累 ‎1．“动词＋back”短语一览 ‎①win ... back 赢回；重新获得 ‎②look back (on)回顾 ‎③hold back控制住 ‎④give back归还 ‎⑤call/ring back回电话 ‎⑥take back拿回；收回 ‎⑦keep back隐瞒；抑制 ‎⑧turn back 原路返回；往回走 ‎2．“动词＋down”短语荟萃 ‎①cut down削减；删节 ‎②bring down降低 ‎③slow down慢下来 ‎④break down坏了；中止 ‎⑤turn down拒绝；调低 ‎⑥settle down定居；平静下来 ‎⑦knock down 杀价；撞倒；推倒 ‎3．lose短语全接触 ‎①lose weight 减肥 ‎②lose heart 丧失信心 ‎③lose one's balance失去平衡 ‎④lose one's breath 喘不过气 ‎⑤lose one's heart to倾心于 ‎⑥lose one's way 迷路 ‎⑦lose one's temper发脾气 ‎⑧lose sight of 看不见 ‎1．“Nothing could be better，” he thought.‎ 他想：“再没有比这些更好的了”。‎ ‎2．According to my research, neither your restaurant nor mine offers a balanced diet.‎ 根据我的研究，你我两家所提供的都不是均衡膳食。‎ ‎【句式仿写】‎ ‎1．____________________________time, but nothing is less valued than time.‎ 没有比时间更重要的东西，但也没有比时间更容易被忽视的东西。‎ 答案：Nothing is more important than ‎2．________John ________Tom knows how to spell the word.‎ 约翰和汤姆都不知道怎样拼写这个单词。‎ 答案：Neither; nor 联想积累 表示最高级意义的几种特殊结构 ‎①否定词＋比较级“没有比……更……；没有像……一样……”，常用的否定词有no, not, never, nothing, nobody, hardly等 ‎②比较级＋than＋ ‎③can/could＋never/not＋be＋ ‎[单词点津]‎ balance　vt. 平衡；权衡　n. 天平；平衡 ‎[教材原句]What will happen to you if you don't eat a balanced diet?‎ 假如你的饮食不均衡会怎样呢？‎ ‎(1)keep the balance of nature 保持生态平衡 keep one's balance 保持平衡 lose one's balance 失去平衡 ‎(2)balance sth.against 权衡；斟酌；比较 ‎(3)balanced adj.均衡的；客观公正的 ‎【即景活用】‎ ‎(1)单句语法填空 ‎①You'd better have a ________(balance) diet for the benefit of your health.‎ ‎②You'd better balance the advantages of living in the city ________ the disadvantages.‎ 答案：①balanced　②against ‎(2)完成句子 ‎①When he was running after his brother, the boy ________________and had a bad fall.‎ 男孩在追赶他哥哥的时候失去了平衡，狠狠地摔了一跤。‎ ‎②You are working too hard. You'd better________________ between work and rest.‎ 你工作太勤奋，你最好平衡一下工作与休息。‎ 答案：①lost his balance　②keep the balance strength　n. [C]长处；强项[U]力量；体力 ‎[教材原句]The strength of the diet in Wang Peng's restaurant was that it provided plenty of energygiving food.‎ 王鹏的餐馆里的膳食的优点是提供含有足够热量的食物。‎ ‎(1)build up one's strength 增强体力 strengths and weaknesses 优点和缺点 The strength of ... is that ... ……的优点是……‎ ‎(2)strengthen vt. &vi. 加强 ‎【即景活用】‎ ‎(1)单句语法填空 As we all know, no one is perfect, and everyone has his own ________(strength) and weaknesses.‎ 答案：strengths ‎(2)完成句子 ‎①He has been doing morning exercises to ____________________ .‎ 他一直进行晨练以增强体力。‎ ‎②______________his diet is that it contains plenty of vitamin and fibre.‎ 他的饮食的优势在于它富含维生素和纤维。‎ 答案：①build up his strength　②The strength of lie　vi. 说谎；躺下；位于　n. 谎言；谎话 ‎[教材原句]He could not have Yong Hui getting away with telling people lies!‎ 他可不能让雍慧哄骗人们后跑掉。‎ ‎(1)tell a lie＝tell lies撒谎；说谎话 a big lie弥天大谎 a white lie善意的谎言 ‎(2)lie to sb.对某人撒谎 ‎(3)lie in位于；在于 ‎【特别提醒】‎ ‎【即景活用】‎ ‎(1)单句语法填空 ‎①I almost blew my top when I found out that she ________(lie) to me.‎ ‎②On his way to the city, he found a poor traveler ________(lie) on the road.‎ ‎③________(lie) can't cover up facts.‎ ‎④She felt tired, so she went and ________(lie) down for a while.‎ 答案：①lied　②lying　③Lies　④lay ‎(2)单句改错 Don't laid the glass on the corner of the table.‎ ‎________________________________________________________‎ 答案：laid→lay benefit　n. 利益；好处　vt. & vi. 有益于；有助于；受益 ‎[教材原句]I don't want to upset you, but I found your menu so limited that I stopped worrying and started advertising the benefits of my food.‎ 我并不想让你心烦，不过我发现你菜谱上的菜太少了，所以我也就不着急了，我也开始宣传我餐馆的食物的好处。‎ ‎(1)benefit from/by ... 从……中受益；得益于……‎ ‎(2)for the benefit of 为了……的利益 ‎(3)beneficial adj. 有益的；有利的 be beneficial to ... (＝be of benefit to) 对……有益 ‎【即景活用】‎ ‎(1)单句语法填空 ‎①I'm sure everyone will benefit a lot ________this activity.‎ ‎②This is an agreement that is greatly ________(benefit) to both parties.‎ 答案：①from　②beneficial ‎(2)单句改错 The rain was of great beneficial to the plants.‎ ‎________________________________________________________‎ 答案：beneficial→benefit ‎(3)完成句子 China has been pushing the reform of public hospitals __________________all her citizens.‎ 为了所有公民的利益，中国一直在推进公立医院的改革。‎ 答案：for the benefit of limit　vt. 限制；限定　n. 界限；限度 ‎[教材原句]I don't want to upset you, but I found your menu so limited that I stopped worrying and started advertising the benefits of my food.‎ 我并不想让你心烦，不过我发现你菜谱上的菜太少了，所以我也就不着急了，我也开始宣传我餐馆的食物的好处。‎ ‎(1)limit ... to ... 把……限制在……内 ‎(2)to the limit 最大限度地 within limits 在合理限度内 set a limit for sth.给某事设定限度 There is a/no limit to ... 对……是有限度的/无限度的 ‎(3)limited adj. 有限的 ‎【即景活用】‎ ‎(1)单句语法填空 ‎①There is, however, a limit ________my generosity.‎ ‎②The major challenge of this century is to find ways to meet the needs of a growing population ________ the limits of this single planet.‎ ‎③Time is ________(limit), so you must finish it in 30 minutes.‎ 答案：①to　②within　③limited ‎(2)单句改错 There is a limit to one's life, but no limit to serve the people.‎ ‎________________________________________________________‎ 答案：serve→serving combine　vt. & vi.(使)联合；(使)结合 ‎[教材原句]Perhaps we ought to combine our ideas and provide a balanced menu with food full of energy and fibre.‎ 也许我们应该把我们的想法结合起来，做出一份富有热量和纤维的均衡食谱。‎ combine A with B 把A和B结合起来 combination n. 结合；联合 a combination of ... ……的结合/联合 in combination with ... 与……结合/联合 ‎【即景活用】‎ 完成句子 ‎①It is important that we ________theory with practice.‎ 我们把理论和实践结合起来是重要的。‎ ‎②The firm is working on a new product ____________several overseas partners.‎ 这家公司与几个海外合伙人在联合开发一种新产品。‎ 答案：①combine　②in combination with ‎[短语点拨]‎ get away with 受到从轻发落；(做坏事)不受惩罚 ‎[教材原句]He could not have Yong Hui getting away with telling people lies!‎ 他可不能让雍慧哄骗人们后跑掉！‎ ‎【即景活用】‎ 完成句子 ‎①If you cheat in the exam, you'll never ______________it.‎ 如果你考试作弊的话，就一定会被惩罚。‎ ‎②Every now and again I like to spend a few days in the country to ______________the noise and pollution of London.‎ 我喜欢不时地去乡下待几天，为了远离伦敦的嘈杂声和污染。‎ ‎③If we can ____________present difficulties, then everything should be all right.‎ 如果我们能克服目前的困难，那么一切都应该会好起来。‎ 答案：①get away with　②get away from　③get over in debt 欠债 ‎[教材原句]He did not look forward to being in debt because his restaurant was no longer popular.‎ 他可不希望由于餐馆不受欢迎而负债。‎ ‎【即景活用】‎ 完成句子 ‎①This young couple are always________because they never consider their incomes before buying something.‎ 这对年轻夫妇因在买东西之前从不考虑他们的收入而总负债。‎ ‎②If I __________________ , I'll have no money left.‎ 如果我偿清了所有欠债，我就没钱了。‎ ‎③You saved my life and I am forever ____________ .‎ 你救了我的命，我将永远感激不尽。‎ 答案：①in debt　②pay off all my debts　③in your debt cut down 削减；删节；砍倒 ‎[教材原句]In this way they cut down the fat and increased the fibre in the meal.‎ 这样，他们减少了饭菜中的脂肪含量，增加了纤维素。‎ ‎【即景活用】‎ 完成句子 ‎①Half of the forest ______________to make room for the new road.‎ 为了给新公路腾出地方，有一半的森林被砍了。‎ ‎②My uncle hasn't been able to quit smoking, but at least he ______________ .‎ 我叔叔没能戒掉吸烟，但至少已减少烟量了。‎ ‎③When the whole area was ________by the flood, the PLA sent food packages there by helicopter.‎ 当整个地区被洪水隔断了与外界的联系，中国人民解放军用直升机送去了食品。‎ 答案：①was cut down　②has cut it down　③cut off ‎[句型与语法]‎ ‎[教材原句]Something terrible must have happened if Li Chang was not coming to eat in his restaurant as he always did.‎ 如果李昌不像往常那样到他店里吃饭，那问题一定严重了。‎ ‎(1)句中must have happened属于“情态动词＋have done”的结构。‎ ‎(2)情态动词的基本用法：‎ a．ought to表示责任和义务，意为“应该”，与should同义。还表示可能性，一般指较大的可能性，意为“按道理应该”。‎ b．have to意为“不得不”，有时态、人称和数的变化，其否定形式和疑问形式需要借助于助动词do。在否定结构中，don't have to表示“不必”；mustn't表示“禁止，不许”。‎ c．need作情态动词时，后跟动词原形，表示“需要，有必要”，无人称和数的变化，多用于否定句、疑问句或条件句中。作为实义动词，表示“需要”，后跟名词、代词、不定式、动词的ing形式等。构成否定句和疑问句时要借助于助动词do。‎ ‎(3)“情态动词＋have done”结构的用法 a．must have done表示对过去发生事情所做出的合理或确有把握的推测，意为“想必/准是/一定已做”，只用于肯定句中，在否定句或疑问句中通常被can not/can't＋have done代替。‎ b．can have done一般用于疑问句或否定句中，用于表示对过去所发生事情的推测。could have done用于肯定句时，表示“‎ 本有能力做某事而未做”。‎ c．should/ought to have done表示“过去本应该做某事而(实际上)没有做”，含有责备或遗憾的语气；其否定形式表示某种行为不该发生却发生了。‎ d．may/might have done表示对过去发生的事情的推测，意思是“也许已经做了某事，可能已经做了某事”，多用在肯定句中，用might时表示语气更加不肯定。‎ e．need not do sth. 表示“不必做某事”，needn't have done sth. 表示“本不必做某事却做了”。‎ ‎【即景活用】‎ 单句语法填空 ‎①Since nobody gave him any help, he ________have done the research on his own.‎ ‎②He was very sad after hearing the news. You ________have told him all about it.‎ ‎③We ________take combustible (易燃的) goods aboard.‎ 答案：①must　②shouldn't　③mustn't ‎[教材原句]He could not have Yong Hui getting away with telling people lies!‎ 他可不能让雍慧哄骗人们后跑掉。‎ ‎(1)have sb. doing sth. 意为“让某人做某事”时，常用于否定句中；意为“让某人一直做某事”时，强调动作的持续性。‎ ‎(2)have的其他句式：‎ have sb. do sth. 让某人做某事 have sth. done have sth. to do 有某事要做(主语自己做)‎ have sth. to be done 有某事要做(不是主语自己做)‎ ‎【即景活用】‎ 单句语法填空 ‎①I can't have you ________(make) the same mistake again and again.‎ ‎②It is not a good idea to have the water ________(run) all the time.‎ ‎③When he was having a PE class, he had his leg ________ (injure)．‎ ‎④Don't be worried. I'll have Tom ________(help) you finish the work.‎ ‎⑤—Can you go to watch the football match with me tonight?‎ ‎—Sorry, but I have an important meeting ________(attend)．‎ ‎⑥“Tom, do you have anything ________(wash)？” asked the mother.‎ 答案：①making　②running　③injured　④help ‎⑤to attend　⑥to be washed Wang Peng ran a restaurant which was always full of __1__ (custom) by lunchtime. But one day, a strange thing happened that few people came to his restaurant. Soon he found that people went to a newlyopened one __2__(call) Yong Hui's slimming restaurant. __3__ (curious) drove him into Yong Hui's, __4__ he was given a menu. To his surprise, he found that the food there was simple and the prices were high. But Yong Hui told the customers that they would lose weight by eating there. He couldn't have Yong Hui __5__(get) away with telling lies, so he __6__(throw) down the menu and went to a library. After __7__(do) some research, he realized that Yong Hui's restaurant didn't serve people with enough energygiving food. On the other hand, Wang Peng's menu had little protective food. Since neither of them was providing a __8__ (balance) diet, __9__was obvious that they ought __10__ ork together to serve healthy food.‎ ‎1．________ 　2.________ 　3.________ 　4.________ 　5.________ 　6.________ 　7.________ 　8.________ 　9.________ 　10.________ ‎ 答案：1.customers　2.called　3.Curiosity　4.where ‎5．getting　6.threw　7.doing/having done　8.balanced ‎9．it　10.to