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课件网) Module 4 The natural world Unit 12 Fire 沪 教 牛 津 版 英 语 五年 级 上 册 Warm up Let’s enjoy. 第一课时 must 火；火灾 fire New words. Presentation 燃烧；烧 burn 烧毁 burn down （使）受伤 hurt 必须 must 小心的 careful 当心…… be careful with 吸烟 smoke 火柴 match 安全 safety fire be careful with must careful smoke hurt match burn burn down safety Presentation Listen and say Listen and say Listen and follow the tape. Language points I must study hard. We must be careful with fire. Yes. We mustn’t play with matches at home. Look, ask and answer. What mustn’t we do in the forest We mustn’t smoke in the forest. What mustn’t we do at home We mustn’t play with matches at home. What mustn’t we do at home We mustn’t play fires at home. Summary 1. You _____(must/mustn’t) drink water every day. 2.We _____(must/mustn’t) play basketball on the street. 3._____ (Mustn’t/Don’t) waste water. 4. We _____(must/mustn’t) be careful with fire. 5. You _____(must/mustn’t) swim in the river here. 一、选词填空。 must mustn’t Don’t mustn’t must Summary Exercises Summary 1. Fire is very____ but it is very ___. A use; safety B. useful; dangerous C. safe; useful 2. Children _____ smoke. A must B. can C. mustn't 二、单项选择。 B C Summary 3. Do you know _____fire safety A about B. with C. of 4. Fire is very dangerous. We must be careful _____it. A. for B. with C. at A B A. smoke B. careful C. fire D. safety Alice: Fire is dangerous. Kitty: Yes, we must be 1.___with fire. Alice: Do you know about fire 2. ___ Kitty: Yes, I do. We mustn’t 3. ___ in the forest. Alice: You are right. Kitty: We mustn’t play with 4._____or matches at home. Alice: And we mustn’t play with candles, either. 三、选择单词完成对话。 D A C B Summary Summary 1. 学习了下列单词和短语： fire, hurt, must, careful, smoke, match, be careful with, burn, burn down, safety. 2. must 表示主观的必要，意思是“必须”，是情态动词。 注意：没有人称和数的变化。 用法：与行为动词的原形一起构成谓语。 Summary Summary 句型： ①必须做某事的句型： 主语+must+动词(短语)原形+其他. ②禁止做某事的句型： 主语+mustn’t+动词(短语)原形+其他. Homework
