九年級英語全冊 Unit 8 It must belong to carla Section A（Grammar Focus-4c）課件 （新版）人教新目標版

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1、Unit 8 It must belong to Carla.Section A Grammar Focus 4c It could be _. It also might be _.Can you guess what it is?three birdsa beautiful face課前預習 Can you guess what it is? It could be _. It also might be _.a white vasetwo faces課前預習 It could be _.It also might be _.Can you guess what it is?a dogtw

2、o girls課前預習 Could A be bigger than B? In fact, A and B must be _.Which one is bigger, A or B?A Bthe same sizeNo.課前預習 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 y

3、ou 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 Use “must” to show that you think something is probably true.Use “might” or “could” to show that you think something is possibly true.Use “cant ” to show that you are almost sure s

4、omething is not true.Grammar Focus 表示推測的情態(tài)動詞有must, may, could, might, can。 (1) must表示說話人對事物的推測可能性的程度非常大，意為“一定；準是”；表示有把握的否定推測時用cant，意為“不可能”。如：1. I cant find my keys. I must have left them at home.2. - Is she Mary? - That cant be her. Shes in hospital.Grammar Focus (2) can表示“可能”，常用于否定句、疑問句中。could為can的

5、過去式，表示推測的語氣較can弱。如：- Can the man there be our math teacher?- He may be, but I am not sure. Grammar Focus (3) may意為“也許”。might為may的過去式，表示說話人對現(xiàn)在或將來不太確定的可能性的推測。如：Li Ming might get here in time, but I am not sure.Grammar Focus 意思推測程度must一定，肯定100%的可能性maymight/could有可能，也許20%-80%的可能性cant不可能，不會可能性幾乎為零 1. Who

6、s singing in the next room? It _ be her. She has gone to New York. A. cant B. must C. shouldnt D. can【解析】考查情態(tài)動詞表推測。表示否定推測時，用cant，意為“一定不”。must表示推測時，意為“一定”，用于肯定句；根據(jù)答語“她已經(jīng)去了紐約”可知是否定推測，故選A。例題解析 A 2. Whose T-shirt is this?It _ be John s. Its _ small for him. A. cant; much too B. cant; too much C. mustnt;

7、 much too D. mustnt; too much【解析】情態(tài)動詞的用法。根據(jù)句意“它不可能是約翰的，對他來說太小了。”故排除C、D，too much為“太多”的意思，much too為“太”。故選A。例題解析 3. Where are you going this month? We_ go to Xiamen, but were not sure. A. neednt B. must C. might D. mustnt【解析】 neednt (不必)表建議； must (一定)表猜測的可能性很大； might (可能，也許)表不是很肯定的猜測。 mustnt(不允許)表命令。句意

8、：-這個月你們將去哪？-我們或許去廈門，但還不確定。C例題解析 4. - Have you decided where to go for your summer vacation?- Not yet. We _ go to Qingdao. Its a good place for vacation. A. may B. need C. must【解析】句意：- 你已經(jīng)決定到哪里過暑假了嗎？- 還沒有呢，我們也許去青島，那是個度假的好地方。情態(tài)動詞表示推測時，may表“可能”，must表“一定”，cant表“不可能”。 A例題解析 1. A: Wheres Jean? B: Im not s

9、ure. 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. 4a Choose the best way to complete each sentence using the words in the brackets.might bemust bePractice 3. A: Thats the phone. B: Hmm

10、. 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 bec

11、ant bemust bePractice 4b Complete these responses1. 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 _.be interest

12、ing coldillmust be deliciousPractice 4c 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: 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.Practice