2013年高中英语 Unit2《Healthy eating》Learning about Language多媒体教学课件 新人教版必修3.ppt

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1、Unit 2 Healthy eatingLearning about Languagelie get away with raw curiosity customer benefit Learning about Language (P.12)1.Write down the words according to the meanings bebind. 1 _something that you say is not true2 _not to be punished for something3_ uncooked4_ the strong wish to know about some

2、thing.5_ someone who buys things or services from a shop, company, etc. 6_a particular quality that gives someone or something an advantagebalanced diet rawslim ought to energetic lose weight lose heart lose interest lose face 2.Fill in the blanks with words from the left box and paraphrase the ital

3、icized parts using the phrases from the right box.Julie wanted to become thinner. She knew she_ eat more vegetables and fruit but little meat. However, as she was so afraid of being laughed at by her friends, she did not consult a doctor but lived on a_ of rice, _ vegetables, bananas and lemons. Thr

4、ee weeks later, she found she weighed as much as ever. She felt so sad and hopeless about herself and her behaviour changed.ought to diet raw She didnt dare to face her boyfriend and she was unwilling to visit her friends any more. Luckily, her best friend Fred came to see her and encouraged her to

5、exercise, eat a _ diet and enjoy life again. Soon Julie became amazingly_ and_! She felt very happy.balanced energetic slim become thinnerlose weight being laughed at by her friends losing face felt so sad and hopeless about herself lost heart was unwilling to visit her friends any more lost interes

6、t in visitingAnswer key to Exercise 3:1 pear; cream (fat and all the others are fruit)2 sugar; mutton (meat and all the others are energy-giving food)3 bacon; cabbage (vegetable and all the others are meat)4 strawberry; eggplant (vegetable and all the others are fruit)modal verb (2) ought to ought t

7、o 用于表示用于表示想必会想必会(语气较语气较must 弱弱)：1.他们想必已到那儿了。他们想必已到那儿了。 They ought to be there by now.2.他最好不要抽烟了。他最好不要抽烟了。 He ought to stop smoking.多数情况下，多数情况下，ought to可与可与should互换使用。互换使用。ought to的反意疑问句用的反意疑问句用shouldnt替代。替代。 You ought to have helped him with his English, _?A. wont you B. can not youC. shouldnt youD.

8、 wouldnt you【即学即练【即学即练】比较比较had better, should & ought to三者均表示建议，意为三者均表示建议，意为“应该应该”，“应当应当”或或“最好最好做做”。三者的语气程度为渐强。三者的语气程度为渐强。had better指一般性的建议，最弱。指一般性的建议，最弱。should & ought to含义相近，常可互换。区别在于含义相近，常可互换。区别在于:ought to常指特殊情况下的常指特殊情况下的“应当应当”；should则指一般情况。例则指一般情况。例句见下页。句见下页。You ought to help him because he is i

9、n trouble now.(语气语气强，有命令意味强，有命令意味)You should have a rest after finishing your sports. （一般（一般性建议）性建议）You ought to call the police when you find something wrong in your house. (语气较强语气较强)He should take care of the babies tonight. （一般情况）（一般情况）have tohave to 表示客观需要去做的事情，意为表示客观需要去做的事情，意为“必须，不得必须，不得不不” 。I

10、have to get to the station early to catch the first train.We missed the bus so we had to walk home.We have to overcome all kinds of difficulties.have to 有多种时态。常见的有：有多种时态。常见的有：We will have to gather at the school gate at 7 tomorrow.一般将来时一般将来时I have to take more money with me because my girlfriend has

11、 so much to buy. 一般现在时一般现在时Finally, we had to give up our idea to hold a picnic outside as it rained for a whole afternoon. 一般过去时一般过去时shall , should &ought toshall用于第一、三人称疑问句，征求意见或请求。用于第一、三人称疑问句，征求意见或请求。shall用于第二，三人称陈述句，表示命令、警告、允诺、用于第二，三人称陈述句，表示命令、警告、允诺、威胁。威胁。should 表示劝告，建议，命令，顺理成章表示劝告，建议，命令，顺理成章oug

12、ht to 疑问句中常用疑问句中常用should代替代替ought toought to 表示应该，语气表示应该，语气should 美语中，美语中，ought to用于否定句、疑问句时用于否定句、疑问句时to 可省略。可省略。Need I do ? Yes, you must. No, you neednt. 情态动词情态动词实义动词实义动词dare否，疑，条否，疑，条 dare not do否否, 疑疑 dont dare to do dont dare do不用于肯定句不用于肯定句肯：肯：dare to do need否，疑否，疑 neednt do (dont) need sth. (d

13、ont) need to do肯：肯：must, have to, ought to, shoulddare & needMust they do? Yes, they must. No, they neednt/dont have to .must have to主观客观主观客观 主观主观 客观客观时态时态 现在，将来现在，将来 多种多种表推测表推测询问意愿询问意愿否定意思否定意思禁止，不允许禁止，不允许 不必不必must & have to比较比较must & have to must表示主观意志，而表示主观意志，而have to表示由于客观因素不得不表示由于客观因素不得不做的事情。做的事

14、情。must没有过去式，但是在间接引语中可表示过去的时间。没有过去式，但是在间接引语中可表示过去的时间。在直接引语中表示过去的时间用在直接引语中表示过去的时间用had to代替。代替。I told her that she must give up smoking.She said, “We had to get everything ready that night.”注意对注意对need问句的回答问句的回答: Need I finish the work today? Yes, _. No, _. No, _.you mustyou needntyou dont have toneednt

15、 对其他情态动词的回答对其他情态动词的回答: Shall I tell John about it? No, you _. Must we do it now? No, you _. neednt (dont have to) neednt(dont have to)Could I borrow your dictionary?(委婉委婉) Yes，you can/may. Sure. Go ahead. Please yourself. May I take this seat?(第一人称疑问句第一人称疑问句) Yes, you may. No, you mustnt.1. I though

16、t you _like something to read, so I have brought you some books. A. may B. might C. would D. must 2. Where is my pen? I _it. A. might lose B. would have lost C. should have lost D. must have lostB D 【达标训练【达标训练】3. I didnt hear the phone. I _ asleep.A. must be B. must have been C. should be D. should

17、have been4. There were already five people in the car, but they managed to take me as well.It _ a comfortable journey.A. cant be B. shouldnt be C. mustnt have been D. couldnt have beenB D 5. Its seven. Jack _ be here at any moment.A. must B. need C. should D. could6.Is John coming by train? He shoul

18、d, but he _ not. He likes driving. A. must B. can C. need D. mayCD7.It has been announced that candidates(候选人候选人) _ remain in their seats until all the papers have been collected. A. can B.will C. may D. shall8.I heard he went skiing last year. It _ true because there was little snow there. A. may n

19、ot be B. wont be C. couldnt be D. mustnt beDC9. Did the train arrive in time?No. It _ two hours ago.A. must have arrived B. ought to have arrivedC. must arrive D. ought to arrive10. Must I drive to his house and pick up the children? No, _ .A. you shouldnt B. you might not C. you neednt D. you mustn

20、tB C 11. We didnt see Tom at the meeting yesterday. He _ it.A. mustnt have attended B. cannot have attendedC. neednt have attended D. would have not attendedB C 12. You _ such a long composition. The teacher only asked for 300 words. You have written 600 words.A. mustnt have written B. couldnt have

21、writtenC. neednt have written D. do not have to write13. There is someone knocking at the door. it be Tom?A. Can B. Must C. Should D. Ought to14. Two years ago, my husband bought me a bicycle. If you live in the town, it is often faster than a car and you worry about parking. A. must not B. may not

22、C. should not D. dont have toA D Answer key for Ex.1:1.Then usually by lunchtime they would all be sold. (Possibility) 2.What could have happened ? (Possibility) 3.Nothing could be better (Possibility) 4.Something terrible must have happened if (Guessing)Discovering useful structures5. He could not

23、believe his eyes. (Ability)6. Perhaps he should go to the library and find out. (Duty)7. He could not have Yong Hui get away with telling people lies ! (Intention)8. He had better do some research ! (Duty)9. Even though her customers might get thin after eating Yong Huis food (Possibility)10.They wo

24、uld become tired very quickly. (Ability) 2. Choose suitable modal verbs from below to complete the following dialogues. There may be more than one possibility. ought/oughtnt to should/shouldnt mustnt/neednt/ (dont) have to will /can/cant1 SAM: How can I grow thinner, Mum?MUM: Well, you _ eat food wi

25、th plenty of fibre that helps you digest better. And you _ stop drinking cola or eating sweet food.SAM: Does it mean I_ eat my favourite fried chicken any more?MUM: Not exactly, if you love fried chicken, you _ give it up. Just eat it less often. You _ worry too much: a little fried chicken_ do you

26、good!have to should shouldnt neednt dont have to will2 DOCTOR: You are sick because youve eaten poisonous mushrooms. Where did you get them? LUCY:I picked them in the forest. I know we _ eat fresh vegetables. DOCTOR:Oh,but you_ eat them until youre sure they are not poisonous. LUCY: Thank you, docto

27、r. Ill be more careful next time.3 CHARLES: I wish I could see things clearly in the dark. TOM:Eating carrots_ help you see better. You _ eat some every day.have tomustntought toshouldUsing Structures (P.50) Answer key for Ex.1:1. have to, should, need to2. ought to, should3. mustnt, would4. have toneed to5. cant, cant Homework1. Summarize the rules of the modal verbs in your own way.2. Finish the exercises of “Using Words and Expressions” on P49.East, west, home is best. 金窝、银窝，不如自己的草窝。