必修三-Book3-Unit2-healthy-eating-语法grammar
人教版 必修三 Unit 2 Healthy eating(语法与写作)教案-最新教学文档
教学过程一、复习预习依据语境记词汇单词拼写1．Don’t glare (怒视) at me like that; you deserved the scolding.2．The patient is recovering slowly; therefore, you had better choose some foods which digest (消化) more easily.3．This shop tries its best to meet the needs of its customers (顾客)．4．This kind of fish d oesn’t need to be cooked.It can be eaten raw (生的)．5．If you place orders now, we would give you a 5% discount (折扣)．语境填词(用所给词的适当形式填空)1．Children are always curious about everything they see and hear.They will ask all kinds of questions curiously.To meet their curiosity,_we’d better answer them.(curiosity) 2．This new railway benefits this area in many ways.It is beneficial to the people living in this area.For the benefit of more people, we should build more railways.(benefit)3．The man looks strong,_but he hasn’t enough strength to lift the heavy box.He needs to strengthen his body.(strength)二、课堂导入复习上节课情态动词概念概念：在动词(一般动词)之前形成动词的否定,疑问,时态,语态,语气或表示特殊意义的动词叫做助动词,其中具有感情色彩一些助动词叫做情态动词。
高中英语必修三《unit2Healthy_Eating》全英文说课稿
高中英语必修三《unit2Healthy_Eating》全英文说课稿《unit2 Healthy_Eating》示范说课稿Good morning, every teacher. My name is Zhang Shuzhen from foreign language school of Jiangxi University of Finance ang Ecnomics.My topic of this class is Healthy Eating. Today I’m very pleased to have an opportunity to talk about some of my teaching ideas about this topic from the following parts.The first part is the analysis of teaching materialThe topic of this unit is healthy eating. It aims at learning the common sense of nutrition, healthy dietary habit as well as the dietary culture differences. This class is the reading part of this unit, and I believe Ss can find their pleasure to learn the knowledge points.According to the character of this class, the teaching aims of this period of this class is that:1、learn some words about healthy eating though context, For example：balance, roast, poisonous and so on.2、master the content and structure of this text, laern some knowledge of healthy eating.3、improve the reading ability.4、arouse the consciousness of healthy eating habit.After the careful study of this teaching material, I think the key point is to differentiate healthy food and unhealty food, and develop Ss’reading ability.The difficult point is to master the useful new words & expressions.The second part is teaching methodsIn order to involve students’ participation in this class, I will make full use of all kinds of teaching meathods, such as self-study,group discussion,brainstorm, role play,given situations and so on. I will try to encourage Ss to speak english, improve their ability of using language.The third part is teaching procedureI divide the teaching procedure into four steps:The first step: lead-in 第一环节导入设计In this part, I will have a free talk with Ss, ask them some questions such as What do you usually have for breakfast/lunch/supper? We will have a free chat of Ss’ eating habit, and lay a foundation of the next teaching part. Meanwhile, we can build a harmonious and loose atmosphere.The second step: present a new lesson 第二环节新课呈现This step is to improve Ss’reading ability. First, I will introduce the healthy food and unhealthy food, Ss can learn some words and expressions of food. Second, read the text, which includes fast reading and careful reading. On one hand, this step can improve Ss’ ability to grasp the main content exactly, on the other hand, it can improve Ss’ ability to find the details quickly. Last, discussion. Encourage the fresh point of view, arouse Ss’ learning interest, and help Ss to develop heathy eating habits.The third step: consolidation and practice第三环节巩固操练As we all know, practice makes perfect. I will give Ss several exercises to consolidate the application of expressions.The fourth step: homework第四环节课后作业Homework is aimed to review what we have learnt in this class and preview what we will learn in the next class. The homework of this class is to review words and expressions and preview grammar.The last part is teaching evaluationIn this class, I try to arouse students’ interest in learning english t hrough interaction and discussion. Also, I hope to achieve the teaching aims through the teaching and learning of this class, and lay a good foundation for the whole students.“English, I can”.That’s all. Thank you!。
必修三unit2 Healthy eating (writing)
vitaimn hienlpsin.gFuus kretehpeinrsmhaoper.eIt,maeahnes athlatthwye ddoine’t tphlaaveytso atrynoiumr bpesot trotlaosnetwreoighlet oirnpuht keep in shape. It mAlleinaanlls, atshanatoldwseayidngogno’ets,h“aFvirset wtoealttrhyis hoeualrthb”e, sI sttrtoongllyose weight or put on weight.suggest that we should develop good eating habits and live a healthy life.
Para.3: Conclusion 倡导健康饮食
Good Eating Habits and Health
saying:W1it.h Ftheirdesvtelowpmeeantlotfhtheissochietey aanldtthhe.improvement of people’s life, 2. An apple a day. Keep the doctor away. we eat too much junk food, which does great harm to our health. Nowadays,
With the development / improvement of... junk food 垃圾食品 do harm to / be harmful to 对...有害
Unit2Healthyeating-Grammar教案(新人教版必修3)
Unit 2 Healthy eatingPart 1 Teaching Design第一部分教学设计Period 2 A sample lesson plan for Learning about Language(Modal verbs: ought to / ought not to / have to / don’t have to/ mustn’t / needn’t)IntroductionIn this period students will be first helped by the teacher to warm up by having a dictation. Then they go on to discover useful words and expressions and learn about grammar. Some ready used materials for Modal verbs: ought to / ought not to / have to / don’t have to / mustn’t / needn’t will be offered.ObjectivesTo learn about Modal verbs: ought to / ought not to / have to / don’t have to / mustn’t / needn’t To discover and learn to use some useful words and expressionsTo discover and learn to use some useful structuresProcedures1. Warming up by reading aloud the text COME AND EAT HERE (1)We promote reading aloud to students and by students in order to encourage a love of English books and a desire to become a fluent English speaker. So Read aloud the text before we learn about the grammar.2. Discovering useful words and expressionsIn pairs do the exercises on page 12. You must finish them in 5 minutes.3. Reading and identifyingRead the text COME AND EAT HERE (1), discovering all the sentences which contain any of the modal verbs: ought to / ought not to / have to / don’t have to / mustn’t / needn’t.4. Consolidating by doing exercisesTo consolidate your understanding you will be given 10 minutes to go overexercises on page 13. You may just write in your text book. I mean thestudent’s b ook you are working by.5. Reading the r eady used materials for Modal verbs: ought to / ought not to / have to / don’t have to / mustn’t / needn’t（用原版）For reference: （用原排版）。
高中英语人教版必修3Unit2HealthyeatingGrammar教案（系列一）
高中英语人教版必修3Unit2HealthyeatingGrammar教案（系列一）必修三Unit 2 Healthy eatingPeriod3 GrammarⅠ.Knowledge aims :Teaching goals:1. Get students to know more about modal verbs.2. Let students learn the use of ought to、should、must、have to.Abilities goals:Enable students to use modal verbs correctly and properly according to the context.Emotion goals:1. Get students to become interested in grammar learning.2. Develop students’ sense of group cooperation.Ⅱ.Teaching importance：1.The usage of each pair of the modal verbs.2.The sameness and difference among these pairs of the modal verbs.3.Correctly understand the change the modal verbs bring to the sentence, that is , their functions. Ⅲ.Teac hing difficulties: Enable students to learn how to use ought to correctly.IV. Teaching methods:1 Task-based teaching and learning2 ExplanationV. Teaching Procedures:Step 1 Leading-inT: Look at some proverbs.The first wealth is health .An apple a day keeps the doctor away.Early to bed and early to rise makes a man healthy , wealthy and wise.Without health no pleasure can be tasted by man.Good health is over wealth. Ask the students to discuss the following questions. If you’d like to give advice or opinions, you can use the modal verbs.what should/shouldn’t we do to keep healthy?What ought we to do to keep healthy?What kind of food must we eat to be strong?Step 2 Grammar learning1.What is called the modal verbs?--Modal verbs help other verbs express a meaning or an idea. Words like should, can, have to, must, and a f ew others are called modals.2. What modal verbs have you learned?can/ couldmay/ mightwill/ wouldshall/ shouldmust/ have toought to / need3. Thinking and discussinga. Let students think over and discuss with a partner how each of these modal verbs is being used in the situ ations.Intention Duty Permission Possibility Guessing Abilityb. Use the function words below to explain the meaning of the modal verbs. If students have some difficulty, give them a hand.1).By lunchtime they would all be sold.2). His restaurant ought to be full of people.3). Nothing could have been better?4).I will take all that fat off you in two weeks.5).He could not believe his eyes.6).He wondered if he should go to the library to find out.7).He couldn’t have Yong Hui getting away with tes and fill in the blanks according to the Chinese.You _ought to_______ go and see the doctor.你应当去找医生看看病。
人教版高中英语必修三 知识讲解 Unit 2 Healthy eating单元语言点
Unit 2 Healthy eating语言点目标认知重点词汇:balance, upset, benefit, diet, offer, serve, discount, consider, operate, combine, tired, hurry, frustrate, limit重点短语:cut down, in debt, earn one’s living, get away with，glare at重点句型1.nothing could be better…2.Why don't you do...？3.have sb. doing sth.知识讲解重点词汇【高清课堂：重点词汇】balance【原句回放】What will happen to you if you don’t eat a balanced diet？(P9) 假如你的饮食不均衡会怎么样?【点拨】balance1. (n.)(1) [U]平衡lose/keep one’s balance失去/保持平衡be off balance 不平稳的，摇摆的sense of balance 平衡感(2) [U, sing]平衡;均衡Pesticides seriously upset the balance of nature. 杀虫剂严重影响了大自然的平衡。
(3) [C]天平，秤Weigh it on the balance. 在天平上秤一下重量。
(4) [C, usu sing] 收支差额，余额My bank balance isn’t good.我银行存款不多。
2. (v.)(1) (vt./vi.) （使…)保持平衡How long can you balance on one foot? 你单脚能保持平衡多长时间？Balancing my cup of coffee in one hand, I managed to open the door.我一只手拿稳咖啡杯，我设法打开了门。
人教版 必修三 Unit 2 Healthy eating(语法与写作)教案
教学过程一、复习预习依据语境记词汇单词拼写1．Don’t glare (怒视) at me like that; you deserved the scolding.2．The patient is recovering slowly; therefore, you had better choose some foods which digest (消化) more easily.3．This shop tries its best to meet the needs of its customers (顾客)．4．This kind of fish d oesn’t need to be cooked.It can be eaten raw (生的)．5．If you place orders now, we would give you a 5% discount (折扣)．语境填词(用所给词的适当形式填空)1．Children are always curious about everything they see and hear.They will ask all kinds of questions curiously.To meet their curiosity,_we’d better answer them.(curiosity) 2．This new railway benefits this area in many ways.It is beneficial to the people living in this area.For the benefit of more people, we should build more railways.(benefit)3．The man looks strong,_but he hasn’t enough strength to lift the heavy box.He needs to strengthen his body.(strength)二、课堂导入复习上节课情态动词概念概念：在动词(一般动词)之前形成动词的否定,疑问,时态,语态,语气或表示特殊意义的动词叫做助动词,其中具有感情色彩一些助动词叫做情态动词。
人教版高中英语必修三：Unit2 Healthy eating-语法篇(学生版)
Unit2 Healthy eating语法篇__________________________________________________________________________________ __________________________________________________________________________________要求学生掌握本单元的重点语法----情态动词表示推测的用法。
一、情态动词表推测：1. 大多数情态动词（除表‘能力、许可、意志’外），都可以表示推测，其程度有差异。
按可能性程度的高低排列为：must ﹥will ﹥would ﹥ought to ﹥should完全肯定完全可能很可能﹥can ﹥could﹥may ﹥might可能有可能2. 区分情态动词的否定含义：may not或许不、可能不might not可能不can’t 不可能mustn't不许、禁止shouldn’t不应该needn’t 不必3. 情态动词表推测具体运用：情态动词可以对现在、进行、过去推测。
4. 表示反劝的特殊的表推测形式5. 注意：二、情态动词表推测的反意疑问句1.情态动词表推测的反意疑问句，简单来说，就是以情态动词后的时态为淮，如句子里有明确的时间状语，则以其为准。
2.以must 为例：Eg.1. You must be hungry now，aren’t you?2. He must be watching TV，isn’t he ?3 Tom must have lived her for a long time，hasn’t he ?4. She must have arrived yesterday，didn’t she?注：如选择题中（以She must have arrived yesterday，didn’t she？为例）既有didn’t she又有hasn’t she则以didn’t she？为最佳答案。
高中英语必修三人教版教案：Unit 2 Healthy eatingPeriod 8 Grammar
How to use the modal verbs.
1.Ought to/ ought not to
2.Have to/ don’t have to
3.Mustn’t/ needn’t
Step .Practice
1.Finish the Exercise on page13.
教 学 过 程
Teaching procedures:
Step .Revision
1. Dictation.
2.Review the use of some modal verbs learned in /could, will/would, shall/should, must/can’t)
3.Read the content on page 90&91 by students themselves.
Step . Students’show
1. Show their understanding of the meaning of the modal verbs.
2. Ask some students to explain the usage of modal verbs.
2.Check their answers
Do the exercise carefully.
Step .Evaluation
Evaluate some best groups.
课堂检测方案
见page13，page50
课后作业布置
第29期报纸
预习内容布置
Unit 3
2.Develop student’s ability of summarizing.
高中英语 B3 unit 2 Healthy Eating 整单元教案 新人教版必修3
教学课题：Unit2 HEALTHY EATING Period1.Warming-up and Pre-reading授课课时：1教学目的：1.了解什么是均衡饮食2.了解食品三种分类3.预测课文内容教学重点：1. 了解均衡饮食养成良好的饮食习惯教学难点：1.预测课文内容教学步骤：STEP1：Warming-up1.In Unit1 we have learnt many festivals around the world. Can you list them? Can you tell uswhat we’ll eat in these festivals?Answer: eg: We’ll eat Zongzi in Dragon Boat Festival.We’ll eat turkey in Christmas.目的：回顾上单元的内容同时引出第二单元有关食物的内容。
2.Game:Let’s have a check. Look who knows the most food. We’ll name this food group by group.3.Every one has his favorite food. Garfield like Spaghetti and collar of brawn best. What aboutyou? What food do you like best?Do you know whether you eat a healthy diet or not?4.Proverb:There is a proverb about food: “You are what you eat!” Please choose the best explanation for this proverb.A.You will become what we eat.B. Your health is decided by what you eat.C. You should buy and eat nutritious food.D. What you eat can make you healthy.Answer: B. 吃什么长什么。
人教版本高中英语必修三Unit2Healthyeating语言点
高中英语学习资料madeofjingetieji目知要点:diet,balance,offer,serve,discount,glare,consider,operate,combine,tired,hurry,frustrate,limi t要点短:cutdown,indebt,earnone’sliving要点句型nothingcouldbebetter⋯Whydon'tyoudo...？havesb.doingsth.知解要点【高清堂：要点】balance要点例句：Whatwillhappentoyouifyoudon ’tbalancedeatdiet？balance(n.)[U]均衡lose/keepone ’sbalancebeoffbalancesenseofbalance(2)[U,sing]均衡;均衡Pesticidesseriouslyupsetthebalanceofnature.balance[C]天平，秤Weighitonthebalance.(4)[Cususing]进出差，余Mybankbalanceisn’tgood.2)(v.)(1)(vt./vi.) （使⋯)保持均衡Howlongcanyoubalanceononefoot?Balancingmycupofcoffeeinonehand,Imanagedtoopenthedoor.(2)(vt.) 算tobalanceanaccountupset要点例句：Idon’twanttoupsetyou,butIfoundyourmenusolimitedthatIstoppedworryingandstartedadvertisi ngthebenefitsofmyfood.upset(upset,upset,upsetting)(adj.)不快的，心慌意乱的，烦忧的beupset(withsb.)(by/about/atsth.)Shewasreallyupsetaboutthewayherfathertreatedher.(2)(vt.)(upset,upset)弄翻；使心慌意乱Don’tdoanythingthatwouldupsethim.Heupsetabowlofsoup.benefit要点例句：Idon’twanttoupse tyou,butIfoundyourmenusolimitedthatIstoppedworryingandstartedadvertisi ngthebenefitsofmyfood.benefit(1)(vt.) 有利于sth.benefitsb.Thesefacilitieshavebenefitedthewholetown.(vi.)得益，获得好sb.benefitfromsth.Hehasn'tbenefitedfromtheexperience.(n.)好，益，帮助beofbenefitto=bebeneficialto ⋯Thenewregulationswillbeofgreatbenefit(=behighlybeneficial)tousall.forthebenefitof=forthebenefitofsb.Themoneyistobeusedforthebenefitofthepoor.diet【原句回放】Everybodyhastoeat，butdoyoueatahealthydiet?(P9)每一个人都必吃，但是你吃得健康?【点】dietn. 食，食be/goonadiet在食dietsb. ＝putsb.onadiet限制某人的食dietaryn. 定食(法)dieteticadj. 食的ThedoctorsaysI’vegottogoonadiet．医生我必食。
高一英语人教版必修3-Unit-2-healthy-eating-grammar-课件
• 2. "Must I drive to his house and pick up the children?" C • "No, ." A. you shouldn't • B. you might not • C. you needn't • D. you mustn't
have to 的用法 主观的需要，意思是 1. must表示一种_____ “必须” 无时态变化。 2. have to表示一种客观 ____的需要，意思是 “不得不”。有时态变化。 don’t have to 否定形式：____________
Advice and duty
• should 与 ought to • 相同点:从道义,义务上应做 的事:应该,应当” • 不同点:ought to有引申的用 法”按常理应当…,非常可能 的事,表应该,侧重责任,义务
1.
情态动词考题:
---Did the train arrive in time? ----No. It _______ two hours ago. B A. must have arrived B. ought to have arrived C. must arrive D. ought to arrive
2. — Hi, Tom. Any idea where Jane is? — She ________ in the classroom. I saw her there just now. (2014重庆卷) A. shall be B. should have been C. must be D. might have been
must / have to must的用法 1. 必须 ----- Must we hand in our exercise today? must ------Yes, you ______. needn’t ------No , you_______. ------No, you ________. don’t have to
人教版高中英语新课标必修三M3 Unit 2 Grammar
M3 Unit 2 Healthy eatingGrammar: Modal Verbs（Ⅱ）Motto: Eat to live,but do not live to eat. 吃饭是为了活着,但活着不是为了吃饭.I.Learning aims:1.Master the usage of Modal V erbs.2.Master the usage of modal verbs+ have done.Ⅲ. ConsolidationLevel A Complete the task with proper words.1.You ______________ go there alone; it’s too dangerous .(mustn’t/needn’t)2.I ________________ here in time but I met an friend of mine.I stopped and talked him for some time.(could have come/must have come)3.—Shall I leave the room so that you two can talk? —No,you__________________. (mustn’t/needn’t)4.He __________________have missed the train; he arrived at the train station two hours early.(can’t/needn’t)5.We’ll be very glad if you_________________ joining us in going camping.(can/may)6.They _________________ stay in the office last night because of the snowstorm.(have to /must )7.We ____________________ have helped him;in that case,he would have been able to finish the work.(should/can)8.From what you said,she __________________ have told you all about it.(can/must)9.Immediate actions ___________be taken ,like stopping cutting down trees,to better the environment.(may/ought to) Level B Complete the sentences.1.You ______________ private phone calls in work time. 在工作时间你不应该打私人电话。
(最新整理)M3U2HealthyeatingGrammar人教版必修三第二单元语法点
2021/7/26
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选用括号内合适的内容填空。
1. Samuel, the tallest boy in our class,
知这里选择don’t have to表示“不必”。
故选A项。
3. must和need a. need作情态动词时, 只能用于疑问句和否
定句。构成否定句和疑问句时不借助于 助动词do。 — Need I finish the work today? — Yes, you must. / No, you needn’t.
Sam: Does it mean I _s_h_o_u_ld_n__’t_ eat my
favourite fried chicken any more?
Mum: Not exactly, if you love fried
chicken, you _n_e_e_d_n_’_t_ give it up.
b. must的肯定形式表示“必须”，否定式 表示“禁止、严禁”。 You must come here. You mustn’t take the book away from the library.
Choose suitable modal verbs below to complete the following dialogues.
1) 表示主观的义务和必要, 主要用于肯定 句和疑问句, 意为“必须……， 得……，要……”；由must引起的疑 问句，肯定回答要用must或have to, 否定回答要用needn’t, don’t have to, 意 思是“不必”。
人教课标英语必修3 Unit 2 Healthy eating Grammar 课件
be angry.
Review
复习下列情态动词： ought to / ought not to / have to / don’t have to / mustn’t / needn’t
Ⅰ. 用ought to, ought not to, have to, don’t have to, mustn’t, needn’t填空。 1. You _o_um_g_uh_stt_nn_’o_tt_/t_o go across the road when the traffic light is on red. 2. You __n_e_e_d_n_’_t _/ _ buy a gift, but you can if you wdaonnt’ttoh.ave to 3. As students, we ___o_u_g_h_t_t_o____ put
Intention Duty Permission Possibility Guessing Ability
possibility
possibility guessing
possibility
intention
intention
ability
duty intention
Modal vedurtbys are usedpotsosibeilxitypress the speaker’s meaning of ipnotsesinbtiliitoyn, duty,
Henry ought to be there by now. He left home at six.
【拓展】 ought to have done对已发生的情况表示“责 备或不满”，表示“本应该做某事”。
You ought to have told him not to go alone. ◆ 否定式为oughtn’t to或ought not to。
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③Something terrible must have happened. (must have done用于_肯_定__句_，表示对_过__去_发__生_动_作__的肯定推 测)
她昨天本不必来。(实际上来了)
②She didn't need to come yesterday.
她昨天不必来。(实际上也没来)
二、难点突破 情态动词＋have done的用法 1．must have done用于肯定句，表示“过去一定做过某 事”。
She must have been very beautiful when she got married. 她结婚时一定很漂亮。
The house needs/wants/requires repairing/to be repaired. 这所房子需要修葺。
易混辨析
needn't have 表示过去本来没必要干某事而实际
done
上却干了。
表示பைடு நூலகம்去没必要干某事而实际上也 didn't need to 没有干。
试比较：
①She needn't have come yesterday.
(2)作为实义动词，同其他实义动词一样，可用于各种句 式，有时态、人称、数的变化，构成否定句和疑问句时要借助 于助动词do。
①We need to help him. 我们得帮助他。 ②We don't need to tell him the truth. 我们不必告诉他真相。
名师点拨 当need作“需要”讲时，其后跟不定式的被动形式相当于 跟v.ing的主动形式，在这一点上，与want和require作“需要” 讲时一样。v.ing的主动形式表被动含义，need的动作执行者是 动词ing形式的承受者，因此必须是及物动词的ing形式，若为 不及物动词其后应跟介词。
2．can have done一般用于疑问句和否定句中，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”。
3．need的用法 (1)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。如： ①You needn't go there now. 你现在不必去那儿。 ②Need I go there now? 我现在需要去那儿吗？
名师点拨 由need引导的一般疑问句的肯定回答常用must或have to， 否定回答常用needn't或don't have to。 —Need I hand in my paper now? 我现在需要交上论文吗？ —Yes, you must./No, you needn't (don't have to)． 是的，你必须。/不，你不需要。
④He could not believe his eyes. (could意义：__能__够____，强调___能__力___)
一、基础点拨 1．ought to的用法 (1)ought to“应该”。与should相比较ought to语气重，偏重 “责任，义务，道德，法律”等方面。如：
To keep fit, we ought to learn more about our body. 为了保持健康，我们应该多了解我们的身体。 (2)ought to还可表示可能性。如： It ought to be a close game. 那很可能是场势均力敌的比赛。
2．have to的用法 have to“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助动词do。如： His mother is ill. He has to stay at home to look after her. 他妈妈病了，他得待在家里照顾他。 易混辨析
have to must
Unit 2 Healthy eating
Unit 2
第二课时 Learning about Language 情态动词(Ⅱ)
观察句子，写明情态动词的用法。 ①By now his restaurant ought to be full of people. (ought to意义：_应_该__；此处指__按__理_应_当__如_何___，具有一定 的针对性)
侧重客观需要；有时态、人称和数的变化 说话人的主观看法
①I have to go now, for my mother is ill. 现在我不得不走了，因为我妈妈生病了。 ②I must stop smoking. 我一定要戒烟。
名师点拨 have to的否定式为don't have to，表示“没有义务或没有必 要做某事”，意为“不必”，常可以回答must提问的一般疑问 句。而must的否定式mustn't表示“禁止”。 ①They don't have to worry about the nuclear radiation. 他们没有必要担心核辐射。 ②You mustn't come here without permission. 未经允许，你不能来这儿。
名师点拨 用ought to表示推断时，语气较肯定，通常指的是一种合 乎 逻 辑 的 可 能 性 ( 与 should 表 推 断 时 相 似 ) ， 有 时 可 译 为 “ 准 是”(但语气比must要弱)。 (3)ought to的否定形式为ought not to或oughtn't to，其一般 疑问句形式是将ought置于主语前。 You oughtn't/ought not to scold him. 你不该责备他。 (4)在附加疑问句中，ought(n't) to中的to要省去。在美语中 常用shouldn't代替oughtn't。 We ought to go now, oughtn't/shouldn't we? 我们现在该走了，是吧？