北师大版高二 (6-7) Unit 13

英语课件 北师大版高二 (6-7) Unit 13

Lesson 3 Making guesses about People

Objectives At the end of this lesson, you’ll be able to： ♠ understand how to express guesses by using Modals for Guessing

Grammar Modals for Guessing 情态动词表示猜测

Look at the dialogue again and complete the gaps with modal verbs: must, may, may not, might, can’t, could.

might • I think my French tutor ______ know • one of them. • 2. They _____ be so frightened. • 3. They _____ have been separated from… • 4. They ______ have gone exploring… • 5. They _____ be there. • 6. They _______ have any water. must may could can’t may not

4. What meaning do the sentences in in Exercise 3 express: • decision? • advice? • guesses?

5. Which of the modal verbs in Exercise 3 express the following? a strong belief that something is / was true 肯定、一定 a strong belief that something is /was not true 不可能

a possibility that something is / was true 可能、也许 a possibility that something is /was not true 可能不，也许不

Answers: Strong belief/true: They must be so frightened! Their parents must be very worried. Strong belief/ not true: They can’t be there.

Possibility /not true: They may not have any water.

Possibility /true: I think my French tutor might know one of them. They may have been separated from… They could have gone exploring…

I think my French tutor might know one of them. b) unlimited present time 6. Look at these sentences again and decide what they are talking about: a), b) or c)

a) past event • They might be sheltering in a cave. c) something happening now • They might have fallen behind.

肯定句 may /might have+PP(过去分词) must have +PP(过去分词) 对过去的推测 must be + n. / adj. maybe/ must be + v-ing（正在进行） must +v.(原形) 对现在的推测

否定句 can’t have + PP(过去分词) can’t have been+ n. / adj. 对过去的推测 can’t be + n. / adj. can’t +v.(原形) can’t be doing (正在进行) 对现在的推测

7. Complete the gaps in the sentences with the modal verbs. More than one answer is possible. must, can’t, may, might, might not, could • She goes out every weekend. She • ______________ have young children. might not / can’t 2. He looks depressed(沮丧的). He __________ be having some problems. may/might/could

3. This woman looks like a scholar. She ___________________ work at the university. may/might/could 4. His shoes are muddy (沾满泥的). He ______ be working in an office all day. can’t

5. Her clothes are all very expensive. She ________________________ be earning a lot of money. must/might/could/may 6. He often goes abroad. He ________________ be working for the Foreign Office. might/may/could

8. Try to guess what happened in the past. • A young woman is looking at a new • ring on her finger. She might have got married recently. 2. A mother is telling her son off. (责备/ 怪) He might have come home late.

3. A boy has a broken arm. He might have fallen off a tree. 4. There is a lot of broken glass on the street. There might have been an accident. 5. A man is lying asleep on a park bench. He might bedrunk.

6. A housewife is cheering. Her husband must/might have won. 7. A driver is taking a set of tool kit from the boot. His car must have been broken down. 8. A girl with wet hair is traveling on the bus. She might have been swimming.

9. Rewrite the sentences using modal verbs and suitable verb forms may be more than one correct answer. • I’m sure she’s relaxing in her room. • She _______________ in her room. must be relaxing

2. Perhaps the postcode was wrong, and that’s why the letter never arrived. The postcode _______________ wrong, and that’s why the letter never arrived. may/might/could have been 3. I don’t believe you failed the exam. You _______________ the exam. can’t/couldn’t have failed

4. It’s possible that Sam doesn’t like classical music. Sam ____________ classical music. may/might not like 5. I’m sure John is not forty-five yet. John _______ forty-five yet. can’t be

6. It is possible that he’s studying astronomy now. He __________________________ astronomy now. may/might/could be studyinging 7. Maybe they lied to me about their adventure. They ______________ to me about their adventure. may/might/could have lied

8. It’s quite probable that Bill didn’t win the competition. Bill _______________________ the competition. can’t/couldn’t have won

Best Choice • ---Do you know where David is? I • couldn’t find him anywhere. • ---Well. He _____ have gone far— • his coat’s still here. • shouldn’t B. mustn’t • C. can’t D. wouldn’t

2. ---Excuse me. Is this the right way to the Summer Palace? ---Sorry, I am not sure. But it _____ be. A. might B. will C. must D. can

3. ---Tom graduated from college at a very young age. --- Oh, he _____ have been a very smart boy then. A. could B. should C. might D. must

4. ---- I heard they went skiing in the mountains last winter. ---- It ____ true because there was little snow there. A. may not be B. won’t be C. couldn’t be D. mustn’t be

5. Jack ______ yet, otherwise he would have telephoned me. A. mustn’t have arrived B. shouldn’t have arrived C. can’t have arrived D. needn’t have arrived

6. ---Didn’t you know that you went driving at 100 kilometers an hour, Madam? --- _____. My old car can do no more than 80, officer. A. I may not have been B. I couldn’t have been C. I mustn’t have been D. I shouldn’t have been

Homework Finish the Exx. on p 58-59.

《赢在课堂》随堂演练参考答案： • II. 情态动词 • must be relaxing 2. might have arrived • 3. can’t have failed • 4. might not like • 5. can’t be 6. may be living • 7. might have lied • 8. might not have won

Weekly Lesson3 : 情态动词 ( p58) I. 2. can’t be 3. must have 4. can’t have 5. must be 6. can’thave 7. must get up 8. can’t get up II. 2. can’t have lived 3. can’t have given 4. must have given 5. must have sent

II. 6. must have married 7. can’t have married • 8. must have been 9. can’t have been • 2. Mary may have won… • 3. He might have been … • 4. He may know … 5. She could be … • 6. They could be… 7. She may not be … • 8. She might not have been

北师大版高二 (6-7) Unit 13