1、 年级 Grade 9 科 目 English 任课教师 李翠屏 授课时间 2015.12.2课题 Unit 8 Section A Grammer-4c 授课类型 New一.教材分析本单元 Grammar Focus 梳理、归纳了本单元的重要句式结构，通过一系列的活动，引导学生自主进行语法学习，巩固本单元的主要语法知识：情态动词must,could,might.cant 表示推测的不同用法。 “语法聚焦” 部分以表格的形式罗列了如何运用 whose 询问及表达物品所属的典型句式型，为学生操练语言提供了示范。该部分还呈现了各种表示推测的句型，通过各种句型的对比练习，让学生掌握情态动词表推测的用
2、法并丰富其表达方式。活动 4a 通过情态动词的选择练习，巩固情态动词在肯定、可能性、否定等方面的推测表达。活动 4b 是一个半控制性的语法练习，要求学生理解语境，对事件原因进行推测。4c 设计的是一个两人结对活动，要求学生观察一副图片，推测图片中房间主人的性别、爱好等并给出理由，让学生在真实语境中运用恰当的情态动词进行合理推测。二.学情分析前面已学习了 must 的用法，为本单元学习 must,might,could,cant 表推测奠定了基础，有助于对本单元语法的理解和运用。教学时注意复习也学过有关情态动词的用法导入本节语法项目。编号 58三.教学目标知识与技能1) 学习掌握下列词汇：lab
3、oratory, coat, sleepy, pocket 2）进行一步复习巩固学习 Section A 部分所学的生词和词组。3）掌握情态动词的用法和物体所属的句型。过程与方法1.通过一系列的活动，引导学生自主进行语法学习，巩固本单元的主要语法知识：情态动词 must,could,might.cant 表示推测的不同用法。2.通过各种句型对比练习，让学生掌握情态动词表推测的用法并丰富其表达方式。3.活动 4a 通过情态动词的选择练习，巩固情态动词在肯定、可能性、否定等方面的推测表达。4.通过活 4b 半控制性的语法练习，让学生理解语境，对事件原因进行推测。5.通过 4c 两人结对活动，让学生
4、观察一副图片，推测图片中房间主人的性别、爱好等并给出理由，让学生在真实语境中运用恰当的情态动词进行合理推测。情感态度与价值观正确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。重点来源:学优高考网 gkstk1) 复习巩固 Section A 部分所学的生词和词组，达到熟练运用的目标。来源:学优高考网 gkstk2) 总结情态动词的用法。四.教学重点来源:gkstk.Com难点 难点 1) 学习运用情态动词的用法。 2) 掌握物体所属的句型。. Review some main phrases and sentences we learned in the last c
5、lass. Grammar FocusFill in the blanks.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.五.教学过程设计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
6、一匹狼。Im _ _, but it _ _a dog.It was bigger. I think it _ _ a bear or a wolf. Try to Find 情态动词表推测，可能性：must can/could may/might一、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 answer? 他
7、知道答案吗？二、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 homew
8、ork？你能帮我完成我的家庭作业吗？三may/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。He may/ might not be at home, but Im not sure. 他可能不在家，不过我也不确定。四、推测时态1. must: 推测现在/ 正在/ 过去发生的动作。He must have a car now. (现在) 他一定有一辆小汽车。He must be finishing his homework at home. (正在进行) 他一
9、定在家做作业。He must have finished the work. (过去) 他一定已完成了工作。2. can/ cant 后可接进行时/完成时，表示对现在发生的动作或过去发生的动作进行推测。e.g. They cant be reading in the library. 他们一定不在图书馆读书。He cant have gone to Shanghai because I saw him just now.3. may，might 可以推测现在正在发生的动作或过去发生的动作，还可以推测将来的情况。e.g. He may/might be sleeping now. (现在 ) 他
10、可能正在睡觉。These people may/might have seen the film before. 这些人可能看过这部电影。It may rain. There are some clouds. (将来) 可能会下雨。因为有一些乌云。. Practice Work on 4a. Choose the best way to complete each sentence using the words in brackets.让学生们理解句子意思。1. A: Wheres Jean?B: Im not sure. She _ (is/ might be/ must be) in t
11、he laboratory.2. A: Everyone is going to the pool after school.B: Really? It _ (must be / cant be /could be ) hot outdoors.3. A: Thats the phone.B: Hmm. I wonder who it _ (must be / could be / should be).4. A: I wonder if there are Jims glasses.B: They _ (cant be / might be / could be) his. He doesn
12、t wear glasses.5. A: I hear water running in the bathroom.B: It _(could be / must be / cant be) Carla. She was thinking of taking a shower.根据句意选择正确的情态动词。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。VII. Check the answers with the Ss. VIII. Explanation.(1) be sure (of/about sth/doing) 确信.，对.有把握be sure to do sth “ 必
13、定” ， “ 必然会”, “准会“(2) 表示“位移 ”的动词用现在进行时态表将来，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。(4) think of 想要；打算e.g. I thought of playing basketball. 我想打篮球。Work on 4b. Complete these responses;Tell Ss to underst
14、and the sentences.Let Ss write down possible answers as much as possible；Let Ss check their answers with their partners；Check the answers together.Group Work Look at this picture of a room. How much can you tell about the person who lives here? Is it a boy or a girl? What are his/ her hobbies? Discu
15、ss your ideas with a partner.A：It could be a girls room because its very tidy.B：I guess so. But it might be a boys room because the clothes look like boys clothes.A：It could/ might/ cant be. because.B：I guess so/ I dont think so. But it might/ could/ must be . because . Homework Remember the Grammar
16、.Finish the exercise in 4c.六.练习及检测题I. ExercisesChoose 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 himIm sure he doesnt wear glasses.Acant B. must not C. won
17、t D. may not3. You _ be tiredyouve 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. mayIIComplete the sentences:1. A: Many people are wearing coats. B: The weather must be _.2.
18、 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 cant _.七. 作业设计 IChoose the best way to complete each sentence using the words in brackets.1. A: Wheres Jean?B: Im not sure. She
19、 _ (is/ might be/ must be) in the laboratory.2. A: Everyone is going to the pool after school.B: Really? It _ (must be / cant be /could be ) hot outdoors.3. A: Thats the phone.B: Hmm. I wonder who it _ (must be / could be / should be).4. A: I wonder if there are Jims glasses.B: They _ (cant be / mig
20、ht be / could be) his. He doesnt wear glasses.5. A: I hear water running in the bathroom.B: It _(could be / must be / cant be) Carla. She was thinking of taking a shower.II中考链接1. Whos singing in the next room? It _ be her. She has gone to New York.A. cant B. must C. shouldnt D. can2 Whose T - shirt
21、is this? It _ be John s. Its _ small for him.A. cant; much too B. cant; too much C. mustnt; much too D. mustnt; too much3. Where are you going this month? We_ go to Xiamen, but were not sure.A. neednt B. must C. might D. mustnt4. - Have you decided where to go for your summer vacation? 【2013 福建泉州】- Not yet. We _ go to Qingdao. Its a good place for vacation.A. may B. need C. must5. Must I water the flowers now, mum? No, you _. You _ do it later.A. mustnt; must B. mustnt; may C. neednt; may D. neednt; must
