Unit 8It must belong to Carla Section A Grammar Focus- Section B 1dLearning objectives 学习目标Review how to make inference(作出推断)， using use must, might, could and can’t.To learn new words and expressions as follows: happening, noise , policeman (pl. policemen), wolf (pl. wolves), uneasy 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的程度非大，意为“一定；准是”；表示有把握的否定推测时用can’t，意为“不可能”。如：1. I can’t find my keys. I must have left them at home.2. -- Is she Mary? -- That can’t be her. She’s in hospital.? can表示“可能”，用否定句、疑问句中。could为can的过去式，表示推测的语气较can弱。如：-- Can the man there be our math teacher?-- He may be, but I am not sure. ? may意为“也”。might为may的过去式，表示说话人对现在或将来不太确定的可能性的推测。如：Li Ming might get here in time, but I am not sure.1. -- Whose book is this? -- It must be Mary’s. |
