It must belong to Carla 教学 目标知识与技能：1. 学习运用情态动词表推测。2. 掌握情态动词的用法和物体所属的句型。过程与方法：将抽象知识具体化，帮助学生总结规律，系统地学习语法。调动学生的积极性，引导他们积极参与课堂。情感态度价值观: 面对身边暂时不可解释的现象，根据已有证据进行合理推测。不信谣，不传谣。教学方法任务型教学法 讲授法学习方法Individual learning method, Cooperative learning method教学准备Textbook, PPT教 学 过 程设计意图Step 1 Grammar FocusLet the students read the sentences in Grammar Focus.1. 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.2. 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 Meis hair band. Or it _ belong to Linda. They_ have long hair.3. 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。Im _ _, but it _ _a dog.It was bigger. I think it _ _ a bear or a wolf.Step 2 Explanation 学生自由讨论总结以下内容，教师适当补充。情态动词表推测，可能性：must can/could may/might1. must表示可能性最大的肯定推测，意思是“一定、准是”。只能用于肯定句。如果要表示“一定不”，应该用cant。如果询问可能性时，应该用can。e.g. He must know the answers. 他肯定知道答案。He cant know the answers. 他肯定不知道答案Can he know the answers? 他知道答案吗？2. can/couldcan表示推测“可能性”时，一般用于否定句或疑问句。can在疑问句中意思是“会，可能”。e.g. He cant pick her schoolbag up. 他不可能拿了她的书包。could 用于表示某事有可能发生或可能是事实。e.g. Dont eat it. It could go bad. 不要吃它，可能坏了。The plane could be put off by the storm. 这趟飞机可能会因为暴风雨而推迟。could可用于表示客气、礼貌、委婉的请求语气。Could you please help me with my homework？你能帮我完成我的家庭作业吗？3. may/mightmay, might表示推测“可能性”时，意思是“可能”，“也许”。might不表示过去时态，语气更委婉，可能性更小。may, might表推测时，可用于否定句，但不用于疑问句。e.g. He may/ might not be at home, but Im not sure. 他可能不在家，不过我也不确定。Step 3 Practice Work on 4a. Choose the best way to complete each sentence using the words in brackets.1. 首先让学生们理解句子意思。 2. 根据句意选择正确的情态动词。3. 最后，通读一遍句子，进行综合理解，看句子内容是否通顺，合理。4. Check the answers with the students. Keys: might be, must be, could be, cant be, must be5. Explanation.1) be sure (of/about sth/doing) 确信.，对.有把握be sure to do sth 必定，必然会, 准会2) 表示“位移”的动词用现在进行时态表将来，例如：go去，come来，leave离开，arrive到达，return 回来，fly 飞。3) wonder v. 想知道（want to know）No wonder + 句子 难怪e.g. No wonder you are angry. 难怪你觉得生气。Work on 4b. Complete these responses.Tell students to understand the sentences.Let students write down possible answers as much as possible.Let students check their answers with their partners.Check the answers together.Keys: cold, sick/ ill, must be delicious, be interesting/ attractiveStep 4 HomeworkIf time is not enough , let the students finish the task in 4c after class.课堂作业Choose the correct answer.1. - Excuse me. Is this the right way to the Summer Palace? - Sorry, I am not sure. It _ be.A. might B. will C. must D. can2. - Isnt that Anns husband over there? - No, it _ be him-Im sure he doesnt wear glasses.A. cant B. must not C. wont D. may not3. You _ be tired-youve only been working for an hour. A. must not B. wont C. cant D. may not4. - Is John coming by train?-He should, but he _ not. He likes driving his car. A. must B. can C. need D. may参考答案：1 A 2. A 3. C 4. DMake students get involved in the this class.By presenting grammar rules and doing exercises, students can master grammar better.板书设计Unit 6 When was it invented?情态动词表推测，可能性：must can/could may/might1. must表示可能性最大的肯定推测，意思是“一定、准是”。只能用于肯定句。如果要表示“一定不”，应该用cant。如果询问可能性时，应该用can。2. can/couldcan表示推测“可能性”时，一般用于否定句或疑问句。can在疑问句中意思是“会，可能”。could 用于表示某事有可能发生或可能是事实。could可用于表示客气、礼貌、委婉的请求语气。3. may/mightmay, might表示推测“可能性”时，意思是“可能”，“也许”。might不表示过去时态，语气更委婉，可能性更小。may, might表推测时，可用于否定句，但不用于疑问句。 教后反思4