人教新版九年级英语Unit8SectionA-2.ppt

Unit 8It must belong to Carla 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, nut it cant be a dog. It was bigger. I think it might be a bear or a wolf.Grammar Focus It could be _. It also might be _.Can you guess what it is?Three birdsa beautiful faceCan you guess what it is? It could be _. It also might be _.a white vasetwo facesIt could be _.It also might be _.Can you guess what it is?a dogtwo girls Could A be bigger than B? In fact, A and B must be _ _.Which one is bigger, A or B?ABthe same sizeNo. 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 something is not true.表示推测的情态动词有表示推测的情态动词有must, may, could, might, can。 must表示说话人对事物的推测可能性表示说话人对事物的推测可能性的程度非常大，意为的程度非常大，意为“一定；准是一定；准是”；表示有把握的否定推测时用表示有把握的否定推测时用cant，意为，意为“不可能不可能”。如：。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. can表示表示“可能可能”，常用于否定句、疑，常用于否定句、疑问句中问句中。could为为can的过去式，表示推测的过去式，表示推测的语气较的语气较can弱。如：弱。如：- Can the man there be our math teacher?- He may be, but I am not sure. may意为意为“也许也许”。might为为may的过的过去式，表示说话人对现在或将来不太确定去式，表示说话人对现在或将来不太确定的可能性的推测。的可能性的推测。如：如：Li Ming might get here in time, but I am not sure.意思意思推测程度推测程度must一定，肯定一定，肯定100%的可能性的可能性maymight/could有可能，有可能，也许也许20%-80%的可能性的可能性cant不可能，不可能，不会不会可能性几乎为零可能性几乎为零1. - Whose book is this? - It Marys. It Mary.3. The hair band Linda. Lindas.2. - Whose French book is this? - It Alis. She studies French.4. The T-shirt Johns. Its much too small for him.(肯定肯定; 一定一定)(可能可能)(可能可能)(不可能不可能)1. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have been2. Mary _ be in Paris. I saw her in town only a few minutes ago. A. mustnt B. shouldnt C. cant D. may notChoose the best answer.3. Peter _ come with us tonight, but he isnt very sure yet. A. must B. may C. can D. will4. I thought you _ like something to read, so I have brought you some books. A. may B. might C. could D. must1. - Are you going to Beijing by plane? - Its fast, but expensive. So I am not sure. I _ take a train. A. should B. may C. must D. will 2. - Is John coming by train? - He should, but he _ not. He likes driving his car A. must B. can C. may D. need感悟中考感悟中考3. - _ I swim in that river? - No, you _. Its dangerous to swim in it. A. Must, cant B. Can, may not C. May, mustnt4. The students _ play basketball after school every day. A. allow to B. are allowed to C. were allowed to感悟中考感悟中考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.4a4amight bemust be3. 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 becant bemust be 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.4c4cComplete 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 _.4b4bbe interesting coldillmust be deliciousHomework 1.Whats the most strange thing happened on you?2.What would you do if something strange happened?