高中英语 Module 6 The Tang PoemsSection Ⅲ Grammar 情态动词教学案 外研版选修8-外研版高二选修8英语教学案VIP专享

Module 6 The Tang PoemsSection Ⅲ Grammar 情态动词语法图解探究发现①The topic of the poemcan't be travel.②It must be something more personal.③It may be friendship.④It might be the journey through life.⑤Li Baimust have had a strange life.⑥He can't have been interested in a normal life.⑦He may have diedwhen he fell out of a boat.⑧You should read the poem sometime.⑨Could you answer a few questions, please?⑩I told her to stop singing, but she wouldn'tlisten.[我的发现](1)①～⑦句表示推测，其中⑤～⑦句表示对过去所发生的事情的推测。(2)⑧ 句表示说话人的意愿，意为“应该”，⑨句表示请求，⑩句表示意愿。一、情态动词表推测(一)情态动词表推测的三种句式1．在肯定句中一般用 must(一定)，may(可能)，might/could(也许，或许)。You have worked hard all day.You must be tired.你辛苦干了一整天，一定累了。The thought that she might be ill annoyed him.想到她或许病了，他就不安。2．否定句中用 can't/couldn't(不可能)，may not/might not(可能不)。If Tom didn't leave here until five o'clock, he can't be home yet.如果汤姆五点才离开这儿，他此时一定还未到家。He said that I might notborrow his car.他说我可能不用借他的车。3．疑问句中用 can/could(能……？)。Couldhe have finished the task?他可能把任务完成了吗？Can he be at home now?他现在能在家吗？[即时演练 1] 用适当的情态动词填空①He must be ill. He looks so pale.②He was afraid they might not agree with him, but I am not quite sure.③It can't/couldn't be the headmaster. He has gone to America.④Someone is knocking at the door. Who can it be?⑤It may take a long time to find a solution to the problem. (二)情态动词表推测的三种时态1．对将来情况的推测，用“情态动词＋动词原形”。She must/may/might arrive before 5.5：00 前她一定/可能/也许到。2．对现在或一般情况的推测，用“情态动词＋be”“情态动词＋be doing”或“情态动词＋动词原形”。At this moment, our teacher must/m...