必修5Unit13教学课件U13Lesson3

1、北师大 高二 (5) Unit 13Lesson 3 Making Guesses about PeopleUnit 13 People To practise using modals when guessing To distinguish between modals used for decision, advice and guesses Do you often watch news on TV? What news are you most interested in?When we watch TV serial plays, we want to know what will

2、 happen in the future. may mustcan cant mightWhich words do you think we will use to express our guess?Guess at the pictures What might the two people be discussing about?2. How might they feel?3. What might they be doing?They might be discussing aboutThey may feel upset / sad / worriedThey might be

3、 on a camp / be caught in a rain / lose their way / be sheltering under a tree / They might feel hungry / cold / anxious / frightened by thunderListen to the dialogue and do the exercise.The two students were missing _. A. perhaps because they were separated from the other students. B. in a case. C.

4、 for the reason we dont know.2. The dialogue tells us _. A. The two students disappeared 3 days ago. B. My French tutor know where they are. C. People found them in a cottages.3. The dialogue make various guessed except _. A. They must be frightened. B. They both are injured. C. They might have some

5、 food to eat.Listen to the dialogue and complete the gaps.A: Have you heard anything about the two missing students? I think my French tutor might know one of them. I saw she had tears running down her cheeks at lunch today and one of the other teachers gave her a hug.B: I heard about it from the ne

6、ws report on TV last night, but havent heard about anything more since then. A: Their friends are really upset and have been waiting anxiously for more news.B: I cant believe that theyve been missing in the mountains for three days now! They must be so (1) _!frightenedA: I wonder how they got lost a

7、nd whose fault it was.B: They may have been (2) _ from the other students and couldnt hear anyone when the thunder started, or they might have (3) _ behind and taken the wrong path.separatedfallenA: Maybe. Or they could have gone exploring on their own and lost their way back to the group.B: I hate

8、to think how they must be feeling right now. Its so cold at the moment. They must be (4) _! I hope they have warm jackets made of wool. freezingA: They might be (5) _ in a cave.shelteringB: Or they could be in one of those empty cottages near the pine trees right at the top of the mountain.A: They c

9、ant be there. People would have looked there first, Im sure.B: True. Imagine how hungry they are! They cant exactly eat seeds like squirrels and sparrows do!A: They might have (6) _ left from camping but they may not have any water. some foodA: Me too. Their parents must be very (7) _. Itll be a rea

10、l relief when theyre found. worriedB: And one of them might be bleeding or have a broken arm or leg. I really hope the someone finds them soon.Friends: really upset; have been waiting anxiously for more newsParents: must be very worriedRead the dialogue and answer the questions.3. How are their frie

11、nds and parents feeling?1. What are the people discussing about?2. Why were the two students missing? Perhaps they were separated from the othersTwo missing students4. Who might know the students?5. Why do you think the tutor know them?Tears running down her cheeks; one of the other teachers gave he

12、r a hug. the French tutorWhen someone has difficulty or trouble, we should care about him or her and stand on his or her feet. We cant laugh at his or her misfortune. We should show our mercy to him or her. We should have a kind heart to this world。From the dialogue, we should learn ：Emotional meani

13、ngSpeakers guessesGuessesEvidenceCausesmay have been separated from others and couldnt hear anyone; (A)-might have fallen behind and taken the wrong path; (A)-could have gone exploring on their own and lost their way back. (B)-Present situationGuessesEvidencemight be sheltering in a cave; (A)-could

14、be in one of the empty cottages; (B)-cant be in one of the empty cottages; (A)People could have looked there first.Present situationmight have some food left from the camping but may not have any water; (A)one of them might be bleeding or have a broken arm or leg. (B)-GuessesEvidenceFeelingmust be s

15、o frightened; (B)Theyve been missing in the mountain for 3 days.must be freezing. (B)Its so cold at the moment.Discuss the following questions. What might cause the accident? Where might they be sheltering? How might people, who know them, feel? It was reported on TV last night that 1. _ got lost in

16、 the mountains three days ago. They may have been 2. _ from others and couldnt hear anyone, or they may have fallen behind and taken 3. _, _or they could have gone 4. _ on their own and lost their way back to the 5. _. Read the dialogue (P12) carefully and fill in the following blanks.two studentsse

17、parated the wrong pathexploringgroupThey must be 6. _ and hungry at the moment. They might have some food but may not have any 7. _. And whats worse, they may get 8. _. People hope theyll be found soon.freezingwaterhurtModals for Guessing I think my French tutor _ know one of them.2. They _ be so fr

18、ightened!3. They _ have been separated from4. Or they _ have gone exploring5. They _ be there.6. they _ have any water.mightmustmaycouldcantmay notLook at the dialogue again and complete the gaps with modal verbs:must, may, may not, might, cant, could What meaning do the sentences above express: dec

19、ision? advice? guesses?Which of the modal verbs in above exercise express the following?a strong belief that something is / was truea strong belief that something is /was not truea possibility that something is / was truea possibility that something is /was not trueAnswers:Strong belief/true:Strong

20、belief/ not true:They cant be there.They must be so frightened! Their parents must be very worried.Possibility /true:I think my French tutor might know one of them. They may have been separated from They could have gone exploringPossibility /not true:They may not have any water.I think my French tut

21、or might know one of them.b) unlimited present timeLook at these sentences again and decide what they are talking about: a), b) or c)They might have fallen behind.They might be sheltering in a cave.a) past eventc) something happening now表推测的情态动词情态动词must, can / could, may / might均可表示推测，但用法不同，小结如下： mu

22、st表示有把握的推测，只用于肯定句中， 意为“一定， 准是”。如： They have been working hard all day. They must be tired. can表推测时，多用于否定句或疑问句中。 could可以表示过去的可能，多用于间接引语 中；也可表示现在的可能，语气比can更委 婉。can / could意为“可能， 也许”，cant / couldnt意为“不可能”。 What can Neal possibly mean? Sam cant be at home now, for I saw him going shopping just now. At t

23、hat time we thought the story could not be true. may / might表示可能性时，用于肯定句和否 定句中。might表过去的可能，多用于间接引 语；也可表示现在的可能，口气比may更婉 转。如： Why not turn to Paul for help? He may know the answer. Dont be so sure. He might not lend us a hand this time. They all said that Adam might come home before Christmas. 对正在进行的情

24、况进行猜测时，用“情态 动词 + be doing”。如： Theres a lot of noise from the next door. They must be having a party. Hurry up! Mother might be waiting for us anxiously at home. 表示对过去的推测时，用“情态动词 + have done”。如： Laura looks very happy. She must have passed the exam. I cant find my purse anywhere. You might have lost

25、it while shopping.【注意】表推测的情态动词所表达的肯定程度递增的顺序为：might may could can mustmay /might have +PP(过去分词)must have +PP(过去分词) 肯定句对过去的推测对现在的推测must be + n. / adj.maybe/ must be + v-ingmust +v.(原形)cant have + PP(过去分词)cant have been+ n. / adj.对过去的推测对现在的推测否定句cant be + n. / adj.cant +v.(原形)Complete the gaps in the se

26、ntences with the modal verbs. More than one answer is possible. She goes out every weekend. She _ have young children.2. He looks upset. He _ be having some problems.must, cant, may, might, might not, couldmight not/ cantmay/might/could3. This woman looks like a scholar. She _ work at the university

27、.4. His shoes are muddy. He _ be working in an office all day.could/ might/ maycant6. He often goes abroad. He _ be working for the Foreign Office.might/ must/ may/ could5. Her clothes are all very expensive. She _ be earning a lot of money.must/ might/could/mayTry to guess what happened in the past

28、. A young woman is looking at a new ring on her finger.She might have got engaged recently.2. A mother is telling her son off.He might have come home late.3. A boy has a broken arm.He might have fallen out of a tree.4. There is a lot of broken glass on the street.There might have been an accident.6.

29、 A housewife is cheering.7. A driver is taking a set of tools from his car.8. A girl with wet hair is travelling on the bus.Her husband may be cleaning the house.His car must have broken down.She may have been swimming.5. A man is lying asleep on a park bench.He could be drunk.Rewrite the sentences

30、using modal verbs and suitable verb forms. There may be more than one correct answer. Im sure shes relaxing in her room. She _ in her room.must be relaxing2. Perhaps the postcode was wrong, and thats why the letter never arrived.The postcode _ _wrong, and thats why the letter never arrived. might/ m

31、ay/ could have been4. Its possible that Sam doesnt like classical music. Sam _ classical music.5. Im sure John is not forty-five yet. John _ forty-five yet.may/might not likecant be3. I dont believe you failed the exam. You _ the exam.cant /couldnt have failed6. It is possible that hes studying astr

32、onomy now. He _ astronomy now.7. Maybe they lied to me about their adventure. They _ to me about their adventure.may/ might/could be studyingmay/might/could have lied8. Its quite probable that Bill didnt win the competition. Bill _ the competition.mustnt/couldnt have wonI.根据下面各句句意以及所给单词的首字母或 汉语提示词，写

33、出该单词的正确形式（每空 一词）。1. Lucy would have _ (流血) to death if we hadnt found her.2. These vegetables can be grown from _ (种子).bledseed(s)3. Lisa kissed her son lightly on both c_ and left.4. His jokes provided some funny r_ in what was really a dull speech.5. Dr. Miles was a distinguished _ (学者) of Russian

34、 history.6. Jane was very _ (不安的) to hear that the holiday had been cancelled.7. Did you notice the _ (眼泪) in his eyes when he talked about his father?cheeksreliefscholarupsettears8. During my illness I was taught by a series of home _ (家庭教师).9. If a child does not attend school, the f_ lies with th

35、e parents.10. You cant _ (庇护) your children from the realities of life.11. A_ is the scientific study of the stars, planets, and other natural objects in space.tutorsfaultshelterAstronomy12. The t_ is getting louder and louder. I think it will rain heavily soon.13. I have to know your detailed mail address: _ (邮政编码) and address.14. Marri