Unit 1 Food for thought Using language-Grammar 课件+导学案-2025-2026学年高中英语外研版必修第二册

Book2 Unit1 Food for thought Using language Step 1: Lead in 1. Listen to a piece of music about modals with questions. What do you hear in this song? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2.Review knowledge students have learnt about modals. Step 2: Explanation 1. Look at the sentences in activity 1 on page5. Think and work out the meanings of the words in bold. 2. Match the meanings to the words in bold. a ...I was able to hold a knife and fork - and chopsticks! b But there are still some dishes that Dad dare not try even after many years of marriage to my mother. c ...Mum and I just have to find a way to get him into the kitchen! d ...we’d better not eat too much roast food as it may make us suffer from heat inside our bodies, ... e “ You needn’t try it if you don’t want to,” Mum said,... 1 be afraid to do sth. 2 not be necessary to do sth. 3 give advice to do or not to do sth. 4 be necessary or give strong advice to do sth. 5 have the ability to do sth. 3.Learn usages and meanings of "be able to, have to, dare not, and needn’t,had better". 1) be able to They ______________ escape from the building when the fire broke out. 火灾发生时，他们设法从那栋建筑里逃了出去。 Luckily, he was able to escape from the big fire in the end. = Luckily, he ___________ escape from the big fire in the end. = Luckily, he_____________ escaping from the big fire in the end. 翻译：十分抱歉我昨天没能给你打成电话。（2014年北京卷作文-道歉信） ___________________________________________________________________________ 2) have to Complete the following sentences with the correct form of “have to ”and “must”. 1.There was no bus there. We _________ take a taxi. 2. I think we ______ take a taxi, or we will be late. 3)dare not & needn’t 【2016北京卷31】I love the weekend,because I ________ get up early on Saturdays and Sundays. A. needn't B.mustn't C.wouldn't D. shouldn't 【2015天津卷7】I _________ have worried before I came to the new school for my classmates here are very friendly to me. A. mightn't B.mustn't C.needn't D.couldn't Complete the following sentences with the correct form of given words. 1.He _____________（need）to study French since he has chosen French as his second foreign language. 2.He _____________ (need) to study French since he has chosen Japanese as his second foreign language. 3.He _____________ (need）study French since he has chosen Japanese as his second foreign language. 4.He _____________ (dare) study French, since his classmates have told him that it is the most difficult subject to pass. 5.He _____________ (dare) to study French, since his classmates have told him that it is the most difficult subject to pass. 6.He _____________ (dare) to study French, even though his classmates have told him that it is the most difficult subject to pass. 4）had better Translation：1.你最好现在走，否则你有可能迟到。 ___________________________________________________________________________ 2.你最好别做那件事，否则你会有麻烦。 ___________________________________________________________________________ Step 3: Application Read the short passage quickly in Ex. 3 on page 5 and complete the passage with the correct form of the modals "be able to, dare, have to, had better and need". Step 4: Think and Share 1.Think about Chinese table manners. 2.Work in groups and describe Chinese table manners, using as many modal verbs as they can. Step 5: Presentation Describe Chinese table manners, using as many modal verbs as they can. Step 6: Summary Summarize what they have learnt today. Step 7: Homework 1. Surf the Internet to find out more information about modals. 2. Review the usage of the modal verbs and use them to describe more table manners. 3. Exchange your drafts about Chinese table manners and make improvements. 学科网（北京）股份有限公司 $ 基于大观念的单元整体教学设计 Unit 1 Food for Thought 理解多元饮食文化 养成健康饮食习惯 培养美食文化自信 Lesson 1: Starting Out & Vocabulary 了解饮食相关话题词汇 Lesson 2: Understanding ideas 了解各国特色美食 学会欣赏尊重饮食文化差异 Lesson 3: Using Language 学会用情态动词对餐桌礼仪提议 掌握如何对美食进行多角度评价 Lesson 4: Listening & Speaking 学习并谈论如何保持健康饮食 Lesson 5: Developing ideas 了解不同饮食习惯，对饮食习惯进行评判，改善自己的饮食结构 Lesson 6: Writing 创写菜谱（介绍美食） Lesson 7: Presenting ideas & Reflection 向联合国举荐一道中国美食：介绍并推荐 单元大观念 了解各国特色美食，学会理解并描述不同饮食文化异同，提升多元文化视野；学习均衡饮食结构，养成健康的生活方式；了解中国饮食文化特色，介绍并推荐中国特色美食，培养文化自信。 单元整体 2 Learning aims 1. To learn the usage and function about modal verbs. 2. To use modal verbs correctly and use them to describe table manners. 3 What do you hear in this song? 情态动词 (modals) can-could will-would may-might ought to-should don't have to-needn't be able to -can have to -must can't-mustn't 5 Grammar: Modals 情态动词 (modals) Definition（定义） Function(功能) Characteristics Revision 6 情态动词(Modal verbs)是本身有一定的词义，表示语气的单词。 Definition 常用情态动词：can (could); may (might); will (would); shall (should); must; need; dare (dared); had better; ought to; used to, etc. 7 we usually use modal verbs to talk about： ability obligation（义务） possibility permission advice Function 8 1. 情态动词有一定的词义，不能单独作谓语， 情态动词后接动词原形。 She can play the piano very well though she is seven. Reading can be a challenging task. 2. 情态动词一般无人称和数的变化，个别情态动词有现在时和过去时两种时 态变化。 They must be on the playground. 3. 具有助动词的作用，即可用来构成否定句、疑问句及简略答案。 I can’t swim. Can you swim? - No, I can’t. Characteristics auxiliary verb 助动词 the base form of verb 动词原型 9 a ...I was able to hold a knife and fork - and chopsticks! b But there are still some dishes that Dad dare not try even after many years of marriage to my mother. c ...Mum and I just have to find a way to get him into the kitchen! d ...we’d better not eat too much roast food as it may make us suffer from heat inside our bodies, ... e “ You needn’t try it if you don’t want to,” Mum said,... Look at the sentences from the reading passage. Think and work out the meanings of the words underlined. What's the meaning of the words underlined? have the ability to do something be afraid to do something be necessary or give strong advice to do something give advice to do or not to do something not be necessary to do something Now let’s focus on more information Leading-in 1 be afraid to do sth. 2 not be necessary to do sth. 3 give advice to do or not to do sth. 4 be necessary or give strong advice to do sth. 5 have the ability to do sth. 10 be able to后接动词原形，表示某人做某事的能力，可用于大多数时态。用于过去时态时，还可以表示“某人过去或当时成功地做了某事”。 I will be able to speak Japanese in another few months. 再过几个月，我就能讲日语了。 They ______________ escape from the building when the fire broke out. 火灾发生时，他们设法从那栋建筑里逃了出去。 Usage of Modals 1 be able to have the ability to do something were able to 11 can & be able to can只有现在时和过去时(could)，而be able to则有更多的时态变化。 can一般指自身具有的能力，而be able to则表示经过一段时间的努力后所具有的能力，相当于manage to do 或 succeed in doing。 She can sing English songs well. He will be able to sing this song in English in a few months. Luckily, he was able to escape from the big fire in the end. = Luckily, he ___________ escape from the big fire in the end. = Luckily, he_____________ escaping from the big fire in the end. managed to succeeded in 翻译：十分抱歉我昨天没能给你打成电话。（2014年北京卷作文-道歉信） I’m sorry that I wasn’t able to phone you yesterday. 12 Usage of Modals 2 have to 1. have to 意为“不得不，必须”,后跟动词原形。 I have to be off now. The train is leaving in an hour. 我得走了。火车一小时之后就要开了。 He has to tidy his room. 我得整理房间。 2.have to 的否定和一般疑问句形式需要借助助动词。 You don’t have to go if you don’t want to. 如果你不想去，你就不必去。 He doesn’t have to stay at home all day. 他不必整天待在家里。 Do you have to look after your sister？你得照看你妹妹吗？ Yes，I do./ No，I don’t.是的，我得照看。/不，我不必照看。 auxiliary verb 助动词 be necessary or give strong advice to do something 有人称、时态和数的变化。 13 must & have to Complete the following sentences. 1.There was no bus there. We _________ take a taxi. 2. I think we ______ take a taxi, or we will be late. must 强调说话者的主观意愿； have to 强调客观上的必要性。 I have to leave because of the bad weather. 因为天气不好，我不得不离开了。 I must finish the paper by noon. 中午之前我必须完成这个论文。 had to must objective necessity客观必要性 Subjective willing主观意愿 14 Usage of Modals 3 & 4 dare & need need 和dare 既可用作情态动词，也可用作实义动词。用作情态动词时，主要用于否定句和疑问句中。 用作情态动词 How dare you ask me such a question? 你怎么敢问我这样的问题？ It’s not hot here; we needn’t turn on the air-conditioner. 这里并不热，我们没必要开空调。 Notional verb实义动词 15 dare & need You needn’t finish that work today. I don’t need to get some sleep. He dare not do it. He does not dare (to) answer. dare和need用作实义动词时： 有时态、人称和数的变化。 在肯定句中，两个词后面通常都接带to的不定式。 情态动词 实义动词 情态动词 实义动词 sb dare to do sth sb need to do sth not be necessary to do something be afraid to do something He needs to see a doctor.  Do you need to see one too？ 16 Exercise 【2016北京卷31】I love the weekend,because I ________ get up early on Saturdays and Sundays. A. needn't B.mustn't C.wouldn't D. shouldn't 【2015天津卷7】I _________ have worried before I came to the new school for my classmates here are very friendly to me. A.mightn't B.mustn't C.needn't D.couldn't needn't needn't 17 Exercise 1.He _____________（need）to study French since he has chosen French as his second foreign language. 2.He _____________ (need) to study French since he has chosen Japanese as his second foreign language. 3.He _____________ (need）study French since he has chosen Japanese as his second foreign language. 4.He _____________ (dare) study French, since his classmates have told him that it is the most difficult subject to pass. 5.He _____________ (dare) to study French, since his classmates have told him that it is the most difficult subject to pass. 6.He _____________ (dare) to study French, even though his classmates have told him that it is the most difficult subject to pass. needs does not need needn’t dare not does not dare dares 18 1.其意为“最好”“应该”，后接动词原形，与情态动词should用法相似，其中的had通常缩略为’d We had better go before it rains. You’d better sit here and have a rest. 2.had better构成否定式时，通常将not置于had better之后 You had better not talk with strangers. 你最好不要和陌生人讲话。 You’d better not stay up late. 你最好不要熬夜。 Usage of Modals 5 had better give advice to do something or not to do something 19 Translation 你最好现在走，否则你有可能迟到。 You’d better leave now, or you might not get there on time. 你最好别做那件事，否则你会有麻烦。 You’d better not that or you’ll get in trouble. 20 have to dare not had better needn’t be able to Read the short passage quickly in Ex. 3 on page 5 and complete the passage with the correct form of the modals "be able to, dare, have to, had better and need". Application Application What is the passage mainly about? The passage is about the tips for good table manners in the UK. 22 Table manners test 23 Work in pairs. Write some sentences to introduce Chinese table manners, using as many modal verbs as you can. Thinking and Sharing 28 Which one do you want to choose? Table manners you needn't do Table manners you are able to do Table manners you daren't do Table manners you have to do Table manners you had better do Which one do you want to choose? needn't do be able to do daren't do have to do had better do Chinese food is famous around the world. lf you are in China and invited by your Chinese friends to dinner, you had better know some table manners. Here are some tips. First, if there are old people at the table, you have to wait until they begin to eat. Second, you shouldn't point at other people with chopsticks because it's rude. Finally, if you pick something up, you must eat it. With these table manners, you'll be able to have a pleasant dining experience. Thinking and Sharing Chinese table manners 36 How do we deal with the differences between British and Chinese table manners? Thinking and Sharing When in Rome, do as the Romans do. 37 Summary be able to: have the ability to do something dare not: be afraid to do something have to: be necessary or give strong advice to do something had better: give advice to do or not to do something needn't: not be necessary to do something 38 1. Surf the Internet to find out more information about modals. 2. Review the usage of the modal verbs and use them to describe more table manners. 3. Exchange your drafts about Chinese table manners and make improvements. Homework 39 Thanks $