Unit 8 第3课时 (Grammar Focus -4c)（教学课件）-【上好课】九年级英语全一册同步高效课堂（人教版）

Grammar Focus-4c 老师：XXX 班级：XXX Unit 8 It must belong to Carla. Contents Lead-in 1 Grammar 2 Presentation 3 Exercises 4 Summary 5 Homework 6 Language goals 语言 能力 学习 能力 思维 品质 文化 意识 准确判断语境，在语言实践中运用情态动词做出正确推测。 1.掌握常用词汇及句型: library;outdoor等; 2.能根据不同的理由来判断出 不同情态动词的语气. 通过观察讨论归纳，总结情态动词表推测的用法，提高思维的逻辑性。 1.通过观察归纳，正确理解和运用情态动词must, could, might, can’t . 2. 学会表推测的情态动词在实际生活中的运用。 1 2 3 4 0 1 Lead-in Mike is talking with his wife about their travel plans. Find out modal verbs for speculation. Lead-in It must be very expensive. The people who do it must be very fit. That might be fun. It may be too challenging for us. It could be dangerous. It can't be that dangerous to go onsafari. So many people do it. Look at these sentences. 情态动词 表推测 Lead-in 情态动词must，can，could，may和might均可表示推测，可以对过去、现在或将来的情况作出语气强弱不同的推测。 0 2 Grammar Whose volleyball is this? It must be Carla’s. She loves volleyball. Whose hair band is this? It could be Mei’s hair band. Or it might belong to Linda. They both have long hair. What did you see that night? I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf. Find out modal verbs for speculation. Grammar Focus The light in the teachers’ office is still on. Miss Gao ______ be working. must表推测用在肯定句中 【注意】mustn’t “禁止, 千万不要”，不表推测。 情态动词 must表推测 Grammar Focus You have worked all this week .You _______ be tired. Students ________ go to swim in rivers by themselves. You ________ late. must 1.must. “一定；肯定”.表示_____________. must mustn’t mustn’t 肯定猜测 ______ it rain tomorrow? It’s so sunny at the moment. 【拓展】could 表推测时，可用于肯定句、否定句和疑问句。 它比 can 更委婉，更不确定。 情态动词 can’t表推测 Grammar Focus She ______be at school .It’s Sunday today. He couldn’t have understood. Where could it be? can’t 2.can’t，意为“不可能；应该不是”.表____________. Can can表推测 用在否/疑句 否定猜测 According to the radio ,it may/might/ rain this evening. 【注意】may not/ might not 表示不太有把握的否定推测， 意为“可能不”. 情态动词 may等表推测 Grammar Focus Will you please a