Unit 8 It must belong to Carla.语法练习 2023-2024学年人教版九年级英语全册

9年级英语Unit8 It must belong to Carla. Grammar Focus(情态动词表推测用法) 【语法精讲】 （一）情态动词表推测的三种句式 能用于表推测的情态动词： must, can, could, will, would, may, might, should, ought to 1. 在肯定句中一般用 must (一定) ，may (可能)， might / could (也许，或许)。 He must/may/might know the answer to this question. 2.否定句中用 can’t / couldn’t(不可能), may not/might not(可能不)。否定语气较强时，用can't，意为“根本不可能”、“一定不能”，表示惊异、怀疑的感情色彩。 It can’t/couldn’t be the headmaster. He has gone to America. 3.疑问句中用 can/could (能……?) Could he have finished the task? Who can it be? 注：以上三种句式中情态动词的语气按程度都是依次递减的。might, could 并非 may, can 的过去式，而表示语气较为委婉或可能性较小。 (二)情态动词表推测的三种时态 1.对现在或将来情况的推测，用“情态动词 + be” ，或“情态动词+动词原形” (1) He must / may / might / could study English now. 他一定/可能/也许在学英语。 (2) She must / may / might / could arrive before 5. 她也许五点前到达。 (3) He can’t ( couldn’t ) / may ( might ) not be at home at this time. 这个时候他不可能/可能不在家。 (4) Mr. Bush is on time for everything .How can ( could ) he be late for the opening ceremony ? 布什先生一向准时，这次开幕式他怎么可能迟到呢？ 2.对现在进行情况的推测，用“情态动词 +be doing” The man is running fast. He could be catching up with the bus. 那位男士跑得很快。他可能在赶车。 3.对过去情况的推测，用“情态动词 + have +过去分词”。 (1) It must / may / might / could have rained last night .The ground is wet. 地湿了，昨晚肯定/可能/也许下雨了。 (2) The door was locked. He can ( could ) not / may ( might ) not have been at home . 门锁着，他不可能/可能不在家。 ( 3) Can / Could he have gotten the book？ 难道他找到书了吗？ 综合练习： 一．根据句子意思用must, might, could或can’t填空 1. The white ruler belong to Lucy. Hers is red. 2. I can’t find my keys. They be still at home. 3. The exercise book belong to Bob. It has his name on it. 4. Jim be at home. He has gone to his hometown. 5. This blue shirt belong to Ken. He likes blue best. 6. Mr. Wang ______ be in Nanjing now, he went to Beijing only this morning. 7. The volleyball belong to Alice. She plays volleyball every day. 8. The classroom is clean. Someone (clean) it just now. 9. –Is that Bob there? –No, it