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课件网) Unit 8 It must belong to Carla. Section B (1a-1d) + Section A (GF-4c) 人教版九年级（全） Learning Objectives 1. make predictions using picture prompts; 2. use modal verbs must, might, could, can’t to make inference; 3. identify the differences among must, might, could, can’t. By the end of the class, we will be able to: Guessing Game What could the man be doing E.g. He could be running to catch a bus. He might be late for work. Someone might be running after him. Look at this picture. What could the man be running for He could be running _____. He might be running _____. He can’t running _____. for help to escape for exercise Look at the complete pictures. Then use the words in the box to write a sentence about each picture. land man UFO run alien run after a. _____ b. _____ c. _____ A UFO is landing. An alien is running after the man. The man is running, looking afraid. Listen and number the pictures [1-3]. 2 3 1 Write two or three sentences to finish the story. Listen again. Complete the sentences. They see ... The man says ... The woman says ... 1. a man running he might be _____ _____ he could be _____ _____ 2. something in the sky it could be _____ it must be _____ 3. something strange it must be _____ I must be _____ 4. a woman with a camera she could be _____ _____ they must be _____ _____ late for work a plane an alien from the TV news running for exercise a UFO dreaming making a movie Role-play a conversation between the man and the woman. A: Why do you think the man is running B: He could be running for exercise. A: No, he’s wearing a suit. He might be running to catch a bus to work. Grammar 情态动词表推测 must must表示非常有把握的推测。它通常基于已知的事实或很强的证据来推断某事是肯定的或不可避免的。 e.g. She must be at home because her car is in the driveway. might might表示可能的推测，但不确定。它用于表达不太有把握的可能性。 e.g. He might have left early because he felt unwell. could could也表示可能性，比might的可能性稍强一些。它用于谈论潜在的可能性。 e.g. They could be stuck in traffic, which is why they’re late. can’t can’t表示某事不会发生或不可能发生。 e.g. She can’t be in her office because the lights are off and her door is locked. Choose the best way to complete each sentence using the words in brackets. 1. A: Where’s Jean B: I’m 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 / can’t be / could be) hot outdoors. might be must be 3. A: That’s the phone. B: Hmm. I wonder who it _____ (must be / could be / should be). 4. A: I wonder if these are Jim’s glasses. B: They _____ (can’t be / might be / could be) his. He doesn’t wear glasses. 5. A: I hear water running in the bathroom. B: It _____ (could be / must be / can’t be) Carla. She was thinking of taking a shower. could be can’t be could be / must be Complete these responses. 1. A: Many people are wearing ... ...
