人教版九年级Unit 8 It must belong to Carla.-Section A Grammar focus 4a—4c-ppt课件-(含教案+视频+素材)-市级公开课-(编号：005ea).zip

Where is the trash? Peters mom always puts the trash in front of the door. But these days, the trash often disappears without any trace(痕迹). Who takes it away? Here are some inferences(推论). At first, she thinks it could be the cleaner taking it away. However, why doesnt the cleaner take away the trash in front of her next-door neighbors house at the same time? So it cant be the cleaner. Could it be aliens? They are interested in the earth. They are interested in peoples trash, too. But people are still not sure whether there is such a thing. She also thinks it might be Peter or Peters dad. But they are too lazy to help her at home. Then, who might do it except them? The next day, she especially gets up early to solve the mystery. To her surprise, whowhy not Your opinion: It might be_. Because_ _ Unit 8 It must belong to Carla YouYou cancan dodo it!it! All passengers _ go through safety check before they take a plane. （2014年上海中考） A.can B.may C.must D.ought -Must I hand in my homework now, Mr. Smith? -No, you _.（2014年北京中考） A. cant B. shouldnt C. wouldnt D. neednt Look at the “No parking” sign. You _ park your car here.（2014年天 津中考） A.should B.must C.neednt D.mustnt -Whose dictionary is this? -It _ be Jacks. Heres his name.（2015年锦州中考） A.must B.mustnt C.can D.cant He has gone to Shanghai. He _ be at home now. （2014年锦州中考） A.must B.mustnt C.cant D.can must 命令 推测 Modal 疑问句 mustnt V原 肯回 否回 must needn t 禁止 不许 肯定句 疑问句 be can 否定句 cant summarysummary 1. A: Wheres Jean? B: Im 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 / cant be / could be) hot outdoors. Choose the best way to complete each sentence using the words in the brackets. 4a might be must be 3. A: Thats the phone. B: Hmm. I wonder who it _ (must be / could be / should be). 4. A: I wonder if these are Jims glasses. B: They _ (cant be / might 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. could be cant be must be It could be _. It also might be _. Can you guess what it is? three birds a beautiful face Can you guess what it is? It could be _. It also might be _. a white vase two faces It could be _. It also might be _. Can you guess what it is? a dog two girls Could A be bigger than B? In fact, A and B must be _. Which one is bigger, A or B? A B the same size No. 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 crowed. B: The food _ . 4.A: Whenever I try to read this book, I feel sleepy. B: It cant _. 4b4b be interesting getting cold ill must be delicious Whose volleyball is this? It must be Carlas. She loves volleyball. Whose hair band is this? It could be Meis hair band. Or it might belong to Linda. They both have long hair. What did you see that night? Im not sure, but it cant be a dog. It was bigger. I think it might be a bear or a wolf. Grammar Focus 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? Discuss your ideas with a partner. A: Whose room could it be? B: It could be a girls room because its very tidy. A: I guess so. But it might be a boys room because the clothes look like boys clothes. B: What are his hobbies? A: He may like playing the guitar, because there is a guitar in the picture. 4c4c Where is the trash? Peters mom always puts the trash in front of the door. But these days, the trash often disappears without any trace. Who takes it away? Here are some inferences. At first, she thinks it could be the cleaner taking it away. However, why doesnt the cleaner take away the trash in front of her next-door neighbors house at the same time? So it cant be the cleaner. Could it be aliens? They are interested in the earth. They are interested in peoples trash, too. But people are still not sure whether there is such a thing. She also thinks it might be Peter or Peters dad. But they are too lazy to help her at home. Then, who might do it except them? The next day, she especially gets up early to solve the mystery. To her surprise, she sees Peter putting the trash into a dustbin. She realizes her boy has really grown up. 2. Mary _ be in Paris. I saw her in town only a few minutes ago. A. mustnt B. shouldnt C. cant D. may not Choose the best answer. 1. Whos singing in the next room? It _ be her. She has gone to New York. A. cant B. must C. shouldnt D. can 3. Peter _ come with us tonight, but he isnt very sure yet. A. must B. may C. can D. will 4. Whose T-shirt 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 much 5. 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. should 6. 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 not Homework 1.Use must, might, could and cant to write a composition about guessing. 2.Preview the new words we will use in the next lesson. 教学目标：通过各种练习掌握情态动词表示猜测的用法。 教学策略： 使用多媒体，如微课、flash 和课件等帮助学生完成教学目标。 教学重点： 通过情态动词表示猜测的用法，能流利的对话和阅读。 教学难点：must 表示推测的用法。 教学过程： 教学步骤：教师活动学生活动设计意图 Step 1 (4 minutes) Lets enjoy a video about the usage of “must”, then offer some exercises. Watch the video about how to use “must”. Try to chase the important points and use them. 以微课的形式导 入，帮助学生把 握教学目标并抓 住重点。 Step 2 (5 minutes) Ask students to finish some exercises to review the usage of modal verbs. Try to choose the best answer of each question and then complete 4a. Check the answer together. 通过做历年真题 和书中 4a 练习来 检测学生对微课 内容的理解程度。 Step 3 (6 minutes) Provide a set of interesting pictures about “Can you guess what it is?” Then let students finish 4b. Guess the pictures and then complete 4b. After finishing it, share the answers with group members. 通过趣味图片让 学生猜测从图中 看到了什么，激 发学生的学习兴 趣。 Step 4 (10 minutes) Offer sentence cards, ask students to pass the words in 3 minutes. Pass sentence cards in group and then the last student writes down the sentence. 学生通过传话游 戏掌握语法集中。 Step 5 (5minutes) Ask students to make a conversation in pairs using the information in 4c. Look at the picture in 4c. Discuss the ideas with a partner, then share with others. 让学生观察 4c， 然后做两人一组 作对话。 Step 6 (15 minutes) Offer a reading passage of “Where is the trash?”. Then ask students to complete the chart and make a conclusion. Read the passage and then complete the chart. Discuss with group members and share their guessing. 鼓励学生以开放 思维阅读，并进 行合理的推测。 板书设计