Unit2Healthyeating学案(新人教版必修3).doc

高一英语教学案（模块3）Unit 2 Healthy Eating课前预习一、 课前预习：词汇突破重点词汇：1. vt &vi.（使）结合_ 2.adj.未加工的_3.vt&n. 平衡_ 4.n. 好奇心_ 5.adj&vi.苗条的；变细_ 6.n.力量_ 7.n.债务_ 8. 有益于_9. 顾客_ 10.n.叹息_ 11.adj.有限的_ 12. 油煎，油炸_13.符号，迹象_ 14. 折扣_15. 咨询，请教_ 16.间谍_二、重点短语：1.被放过_ 2. 说谎 _ 3.谋生_ 4.怒目而视 _5.欠债 _ 6. 不久以后 _7.增加体重_ 8. 削减，删节_9.应当，应该_ 10.减肥 _11.赢回，重新获得 _ 全员探究1. energy n.精力，能量（不可数） energetic He is so full of _ that he can not keep still.他精力那么旺盛，根本就闲不住。He devoted all his energy to working for human rights.问题探究 energy, power, 和strength有何区别？提示energy意为“能量；精力”power可指“动力、权力等各种力量或能力”strength指体力，力气Knowledge is power_.A judge has the power to send a person to prison. 法官有权把一个人投进监狱。It will be some time before I recover my full _.一段时间后我才能完全恢复体力。2. ought to v. 应该；应当She _ look after her children better.她应该更好地照顾自己的孩子。You _ drink too much. 他不应该喝太多的酒。“ Ought I to go there alone?” “ Yes , you ought to.” 知识拓展ought to have done sth. 本应该做某事（而实际上没做）=_本不应该做_ _He failed in the exam. He _.他没通过考试，他原本应该是更努力学习的。I _ her more help, but I was too busy.我本应该多给她一些帮助，但我当时太忙了。3. glare vi.怒目而视 She rose , _ the rude waiter. 她站起来瞪着那无礼的侍者。They _. 他们互相怒视。问题探究 glare和stare有何区别？Stare是指盯着某人看与at搭配盯着别人看是不礼貌的。_.4. curiosity n. 好奇心satisfy ones curiosity_ 知识拓展 curious adj. 好奇的，稀奇的 be curious about sth.Children are naturally _ everything around them.小孩子对周遭的每件事感到好奇是很自然的。 be curious to do sth.A student should always _.一个学生应该总是有求知欲的。合作探究课文理解Step1: Fast reading: Read the passage silently and quickly and answer the following QUESTIONS, Youll be given 5 minutes.1. What makes a balanced diet?_2. What is wrong with the diet of both Wang Peng and Yong Hui?_3. Why does it matter if you only eat at Wang Pengs or Yong Huis restaurant?_Step2: Careful reading:TRUE or FALSE?Do Exx 1 on page 11.Step3:.Comprehending PracticeDo Exx4 on page 11Step4:Explain 1. benefit n.u 利益；好处 public benefit_ a benefit concert _I got a lot of _ from learning a foreign language.从学习外语中我得到很多益处。be of ( some / much / no / little )benefit to 对有益That experience was _. 那个经验对我很有益处。Your advice is _. 你的建议对我很有帮助。 知识拓展 联系be of+ 抽象名词 短语）用处，价值，帮助，重要性benefit vt.& vi. 有益于；受益；有助于（与from搭配）The reforms will _ working families.这些变革将使职工家庭得到好处。The company _ selling a new product.这家公司从销售新的产品中受益。2.consult vt 请教，咨询，查阅，参考consult sb about sth _Youd better _ your doctor _ your headache.你头痛的事最好咨询一下医生。I consulted the telephone book for his address._.Vi （与人）商量；协议 consult with sb _关于聚会的事，你最好和你的老同学商量一下。_.He consulted with his manager about the pay._.3.before long 不久以后 long before 很久以前区别：before long 相当于soon 和将来时，过去时连用，后不可加句子long before 与过去时或过去完成时连用，后可加句子不久，你就会理解这个句子。_I had known him long before._.不久，我们就会再见面。_.It will be long before we can live on the moon._.4.Wang Peng sat in his empty restaurant feeling very frustrated .feeling very frustrated 是现在分词做伴随状语，如：He sat at the table, _.他坐在桌旁看中国日报Laughing and talking, they went into the room._.5.Nothing could be better, he thought.此句子用比较级的形式表最高级的意义He is taller than any other boy in his class._.注意：否定句与比较级连用，实际上表的是最高级的含义。Did you sleep well last night?Never better, like a rock._.I have never heard a better voice._.I think nothing is more pleasant than travelling._.语法探究 1. must 的主要用法。 表示必须、必要 We must do everything step by step .我们必须按部就班地做一切事情。 must be + 表语的结构，通常表示猜测，含有“一定”之意。（只用在肯定句中） He must be an honest boy. 他一定是个诚实的男孩。 must +have +过去分词的结构，常用在肯定句中，表示对过去发生行为的推测，含有“一定”、“准是”的意思。否定和疑问句用can。She must have studied English before.她以前一定学过英语。 must 的否定式有两个：当回答由must引起的问题时，否定答复要用neednt或dont have to表示“不必”、“无须”、“用不着”、“不一定”的意义。当表示“不应该”、“不许可”、“禁止”时，就用must not。Must I go tomorrow? 明天我必须去吗？ Yes, please.是的，请吧！ No , you neednt. 不，你不必去。2. have to 的主要用法 have to 有人称和数的变化，可用于多种时态中：一般现在时中当主语是第三人称单数时要用has to，其余的人称用have to，一般过去时中要用had to； 一般将来时中则要用will have to.She has to go to school by bus. 她不得不乘公共汽车上学。Youll have to see the doctor if you get ill. 如果你生病了，就得去看医生。 have to 的否定句和疑问句的构成往往要借助于助动词do的适当形式或助动词will即have to, has to, had to和will have to的否定式分别为dont have to, doesnt have to, didnt have to和wont have to，疑问句是在句首加助动词do的相应形式，句中还原成have to或把will放到句首。What does she have to do? 她必须做什么？You didnt have to wait for me yesterday. 昨天你没有必要等我。 have to和must 的区别 含义和用法上的区别，have to强调客观需要做某事，即表示由于客观外界的条件的需要不得不做某事，含有“形势逼迫”的意味，must强调说话者主观上认为必须做某事，含有“主观判断”的意味。My bike was broken on my way to school. I had to walk there. 我的自行车在上学的路上坏了， 我不得不走路去上学。We must learn English well. 我们必须学好英语。 否定式的区别：have to 的否定式意思为“不必”，must的否定式mustnt 意为“禁止，不允许”。因此，以must 开头的一般疑问句的肯定回答为“Yes, 主语+must.”。否定回答为“No, 主语+neednt / dont have to.”.Must I finish the homework now? 我必须现在完成作业吗？Yes, you must. /No, you neednt. 是的，你必须现在完成。（不，你不必。） need与have to 用法辨析 need表示需要，主要用于否定句和疑问句。用于疑问句，肯定回答用must，否定回答用neednt。have to表示他人或客观情况要求“必须”，也可以翻译为“不得不”，have to否定形式意思是“不一定”或“没有必要”。 3. ought to 的用法 表示义务，意为“应该”(因责任、义务而该做)，口气比should稍重。We ought to defend our country.我们应当保卫我们的国家。 You ought to respect your parents.你应当尊敬你的父母。 表示推测，暗含很大的可能，可译为“应该是，会是”。Prices ought to come down soon.价格可能会很快下跌。 ought to和should的含义较近，但不完全相同。ought to表示“应该”，是从“义务”或“按理推断”的角度来讲的。should则是从说话人的个人看法这一角度来讲的。You are her mother. You ought to look after her.你是她的母亲，你应当照管她。(是道义上的责任，不能和should互换。)We should encourage him, for we are his classmates.我们应该鼓励他，我们是他的同班同学啊！达标训练1.In this way they _ the fat and increased the fibre in the meal. A. cut up B. cut down C. cut off D. cut through2. He didnt look forward to _because his restaurant was no longer popular. A. be in debt B. being in debt C. be in the debt D. being in the debt 3. As is known to all, plants absorb_ from the sun. A. power B. energy C. force D. strength4. The child did not look forward _away from home for a couple of days. A. to being B. to be C. at being D. having been5. Your speech at the meeting is limited _ half an hour. A. at B. for C. in D. to6. Many countries are increasing their use of natural gas, wind and other forms of _. A. energy B. source C. power D. material7. - Go for a picnic this weekend, OK? -_. I love getting close to nature.A. I couldnt agree more. B. Im afraid not.C. I believe not. D. I dont think so.8. “We cant go out in this winter,” said Bob, _ out of the window. A. looking B. to look C. looked D. having looked9. _her death in 1886,the poet Emily Dickenson had become a legend(传奇人物) in the hometown.A.It was before long B. Before long C. When before long D. Long before 10. The secretary worked late into the night, _ a long speech for the president.Ato prepare B. preparing C. prepared D. was preparing 11.How do you find our hotel I couldnt find a _ one. A. good B. better C. best D. fine 12.The book is of _ benefit _ us.A. great; for B. much; for C. very; to D. great; to 13. We_ the letter yesterday, but it didnt arrive.A. must receive B. ought to receiveC. must have receivedD. ought to have received14. We ought to help each other in our work, _?A. oughtnt weB. sh