教材		人教版新目标英语九年级全一册	课题	Unit 8 It must belong to Carla . Grammar Focus（4a—4c）
学习目标		掌握本节课中出现的生词和短语： Laboratory; outdoors; coat; sleepy; crowded 2.掌握情态动词must; could; might; can’t表示推测的规则和用法，并建立本节课的语法知识网。 3.在接受Judy警官不同任务考验的同时，能在不同的情景中正确并熟练的使用表示推测的情态动词。 4. 在接受Judy警官不同任务考验的同时，要学会当面对身边暂时不可解释的现象时，要根据自己已有的证据进行合理推测，不可盲目判断下定论。
重难点		1.了解情态动词 must; could ; might表示推测的规则和用法。 2.能在不同的情景中正确并熟练的使用表示推测的情态动词。
教案内容
学习过程	【课前预习】自读Grammar Focus中的重点句型，在书中划出重点、疑点后，翻译下列短语。先独立完成，后小组商议。这是谁的排球？ ________ ________ is this? 这一定是卡拉的，她热爱排球运动. It ________ be ________. She loves volleyball. 这是谁的发带？ ________ ________ is this? 它可能是梅的发带。或者可能属于琳达。她们两人都是长头发。 It ________ be Mei’s hair band. Or it________ belong to Linda. They________ have long hair. 那晚你看见了什么？ ________ did you see that night? 我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。 I’m________ ________,but it________ _________ a dog. It was bigger. I think it ________ ________ a bear or a wolf. 【设计过程】 Step 1 Lead-in 1.Watch the video and learn more about the police officer, Judy. 2.If you also want to be a police officer, you must finish all tasks(任务)well that Judy will give you. Step 2 Problem Presentation（感知must; could/might; can’t的意思及用法） Task1. Help Judy find out which animal is missing（失踪）in the Zootopia(动物城)，according to (根据)some clues(线索) that Judy can give you. Task2. Help Judy look for the owner of the bag, according to different things in the bag and different features（特征）of each person. e.g T: Whose bag is this? S: It must/ could/ might/ can’t be ________’s./ It must /could/ might/can’t belong to __________. Step 3 Problem analysis（分析） Task3. Group work（合作探究） Four students in one group to discuss the meanings of the modal verbs “must; could/might; can’t” in each sentence and how to use them.（读以下例句,合作探究并分析“must; could/might; can’t”在句中的意思及用法） (1) The toy car must be Tom’s. He is the only kid at the picnic. 由此句可知 “ _________ +动词原形”表示“对现在的情况进行推测或判断”，用于________句中，语气十分肯定，意为”___________”. (2) The hair band could/ might be Lucy’s. She has long straight hair. 由此句可知“____________+动词原形”表示“对现在的情况进行推测和判断”，用于__________句中，语气不肯定，意为“___________". (3) The man under the tree can’t be Mr. Li. He is having a meeting in the office. 由第此句可知“___________+动词原形”表示“对现在的情况进行否定的推测或判断”，用于__________句中，语气十分肯定，意思为 “__________________". Share students’ conclusions（结论）。 Watch the micro-class to better understand the rules and usage of modal verbs and try to remember them . Step 4 Knowledge strengthening（4a-4b） Task4. Challenge yourselves! The police officer, Judy will give you two tests: Test1. Check ( √ ) the words. 1. A: Where’s Jean? B: I’m not sure. She __________(is/might be/ must be) in the laboratory. 2. A: Everyone is going to the pool after school. B: Really? It___________(must be / can't be / could be) hot outdoors. 3. A: That's the phone. B: Hmm. I wonder who it___________(must be / could be / should be). 4. A: I wonder if these are Jim's glasses. B: They________ (can't be / might be / could be) his. He doesn't wear glasses. 5. A: I hear water running in the bathroom. B: It_______________(could be / must be / can't be) Carla. She was thinking of taking a shower. Teat2. Complete these responses. 1. A: Many people are wearing coats. B: The weather must be ___________________. 2. A: Sally has been coughing a lot. B: She might be _____________________. 3. A: This restaurant is always very crowded. B: The food ____________________. 4. A: Whenever I try to read this book, I feel sleepy. B: It can't _____________________. Step 5 Speaking practice Task5. Let’s have a debate!（辩论赛） Divide all students into Group. A and Group. B to debate that police officer, Judy is a boy or a girl, according to Judy’ room. （将学生分为A、B组，根据Judy家的物品推断Judy是男孩还是女孩，推断理由最多的一组获胜） e.g. Group. A：I think Judy must be a girl. Because ___________________. Group. B : I think Judy could/might be a boy. Because _______________. Group. A : I think Judy can't be a boy. Because____________________. Group. B : I think Judy can't be a girl. Because____________________. Step6 Summary Step7 Homework Use "must; could/might; can't" to write a passage, according to the information in the chart.