北师大版高中英语必修五 Unit 13 Lesson 3.ppt

Look at these sentences again and decide what they are talking about: a), b) or c) I think my French tutor might know one of them. b) unlimited present time Answers: Strong belief/true: Strong belief/ not true: They can’t be there. They must be so frightened! Their parents must be very worried. 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… They might have fallen behind. a) past event They might be sheltering in a cave. c) something happening now may /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-ing must +v.(原形) can’t have + PP(过去分词) can’t have been+ n. / adj. 对过去的推测 对现在的推测 否定句 can’t be + n. / adj. can’t +v.(原形) Complete the gaps in the sentences with the modal verbs. More than one answer is possible. She goes out every weekend. She _________ have young children. 2. He looks depressed. He ____ be having some problems. must, can’t, may, might, might not, could might not may 3. This woman looks like a scholar. She _____ work at the university. 4. His shoes are muddy. He ______ be working in an office all day. could can’t * 北师大版 高二 (5) Unit 13 Lesson 3 Making guesses about People Objectives ? get the general ideas of the text by listening; ? understand how to express guesses; ? do an interview for the event of the missing students. At the end of this lesson, you’ll be able to： Do you often watch news on TV? What news are you most interested in? When we watch TV serial play we want to know what will happen in the future. What happened in the past? may must can can’t might Which words 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? 4. How might they feel? They might be discussi