Unit2 Let’s celebrate Using language P17 课件（含音频）-【新教材】外研版高中英语必修第二册

Using language P17 新外研版Book 2 Unit 2 Let's celebrate! He may be in his office. Where is Bob? What was the matter with the lady yesterday? Read the photos and sentenses below and make inferences. She might be ill yesterday. 推理，推断 Leading in This restaurant must be very good. It’s always full of people. That restaurant can't be very good. It’s always empty. Which restaurant is better? He called me yesterday evening, but I didn’t hear it. I must have been asleep. Look at the sentences from the reading passage and answer the questions. a. That is why letters from Father Christmas could be the perfect book... b. The children must have been very excited as they opened it. c. ...they might not receive their presents if they were not good. 1. What do the words in bold indicate: an order, a request, ability or possibility? The words in bold indicate possibility. Presentation 2. Will the meaning of sentence (a) change if we replace "could" with "must" or "might"? If we replace "could" with "must", the meaning of sentence (a) will change. It means the speaker is quite sure about the statement. If we replace "could" with "might", the meaning of sentence (a) will remain more or less the same. "Could" and "might" in affirmative sentences have a similar meaning when indicating possibility. 3. What happens if we change "must" and "might" in sentences(b) and (c) into "could"? If we change "must" in sentence (b) into "could", it means the speaker is not sure about the statement, and it's only a possibility. If we change "might" in sentence (c) into "could", it means it's impossible for the children to receive their presents. Now look for more sentences with modals in the reading passage. 情态动词表推测 must, can, could, may, might Modals (2) 情态动词中:can, could, may, might, must 都可表示推测。 两种句式： 情态动词+动词原形 情态动词+完成式 （表示对目前的动作或状态进行推测） （表示对已发生情况的推测） must 1. must 表示推测时， 只能用于肯定句。 你努力学了一整天,一定累了吧。 You have worked hard all d