(
课件网) Unit 8 It must belong to Carla. The Third Period Section A(Grammar Focus—4c) A: What is it B: It must be _____. It could/might be _____. It can’t be _____. a vase two faces a dog Whose volleyball is this It must be Carla’s. She loves volleyball. Whose hair band is this It could be Mei’s hair band. Or it might belong to Linda. They both have long hair. What did you see that night I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf. Grammar Focus 1. —_____ _____ is this 这是谁的排球？ —It _____ _____ Carla’s. She loves _____. 它一 定是卡拉的。她很喜欢排球。 2. —_____ hair band is this 这是谁的发带？ —It _____ _____ Mei’s hair band. Or it _____ _____ _____ Linda. They both have long hair. 它可能是 梅的发带。或者可能属于琳达。她们两人都是长头发。 3. —_____ did you see that night 那晚你看见了什么？ —I’m not sure, but it _____ _____ a dog. It was bigger. I think it _____ _____ a bear or a wolf. 我不确定，但 不可能是狗。它更大一点。我想它也许是一只熊或一匹狼。 Whose volleyball must be volleyball Whose could be might belong to What can’t be might be Complete the sentences. 情态动词表推测 一、表示不同时态的推测的结构 “情态动词+do sth.”表示对现在发生的事情的推测；“情态动词+be doing sth.”表示对正在发生的事情的推测；“情态动词+have done sth.”表示对过去或已完成的事情的推测。 e.g. He may have watched TV last night. 昨晚他可能看电视了。（表示对过去的推测） 语法拓展： 二、肯定推测 1. must 用于肯定句，表示较有把握的推测，意为“准是，一定”，后面接动词原形，表示对现在的推测。 e.g. You must be exhausted. 你一定筋疲力尽了。 2. may 用在肯定句中，表示对现在把握不大的推测，意为“也许,可能”。 e.g. It may be a new invention. 它可能是一个新发明。 3. could, might 也可表示推测，常用于过去时中,但在某些场合下，为了使语气更缓和、更委婉，常用could/might代替can, may。 e.g. They saw something in the sky last night. It could/might be a UFO. 昨天晚上他们看见空中有个东西。它有可能是不明飞行物。 三、否定推测 1. 表否定推测时，can’t/couldn’t 语气最强，指“不可能”，带有惊异、怀疑的感彩。 e.g. The story sounds interesting,but it can’t be true. 这个故事听起来很 有趣，但它不可能是真的。 2. 语气不很肯定时，常用 may not 或 might not 表否定推测，意为“可能不，也许不”。 e.g. He may/might not be at home. 他可能不在家。 四、疑问句中的推测 疑问句中的推测，常用 can 或 could，意为“可能”。 e.g. Who can it be Can it be Jenny 那可能是谁呢？是珍妮吗？ 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. 3.A: That’s the phone. B: Hmm. I wonder who it _____ (must be/could be/should be). might be must be could be Choose the best way to complete each sentence using the words in brackets. 4a 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 ... ...
