02u1语法课中探究案模板.doc

高一英语U1语法课中探究案制作人：审核人：制作时间：2013.2.18一、检查反馈，导入新课。 检查预习案中的情态动词用法。二、目标定位，确定重点。 1. Learn the modal verbs: can/ could, may/ might, will/ would, shall/ should, must/ cant. 2. Enable the students to understand the usage of the modal verbs and use the modal verbs to make sentences or to express their own opinion in real scenes三、自主探究，教师点拨。1. must, may (might) 和can表示“推测”的用法情态动词用法例句must只能用于肯定句，表示可能性很大的一种推测，作“肯定”“一定”讲(1)- Look, someone is coming. Who can it be? - It may be the headmaster. -It cant be him. He has gone to Shanghai. - Then it must be Mr. Zhang. He looks like the headmaster.(2)- What can they be talking about? - They may / must be talking about the question raised at the meeting.(3) - Can they have finished the work? - Yes, they may / must have finished it. - No, they cant have finished the work so soon.May /might用于肯定句中（可能，或许，大概）；用于否定句中（可能不）。表示可能性较小的一种推测can表示推测时，只用于否定句和疑问句中2. 情态动词的用法：表示“应该”、“必须”命令和建议Must 用于表示“必须”、“务必”：You must keep the place clean. 你务必保持地方干净。Shall 和 Should 用于表示“必须”：Each member shall wear a name card. (表示规定) 每一个会员必须配带名卡。I should answer his letter as soon as possible. (表示应该) 我应该尽快给他回信。The rules shall take effect onJan. 1st.(shall 用于规章等，表示义务和规定)新规则于一月一日起生效。Ought to 用于表示“应该”(强调客观上)：(大多情况可用 should 代替)You ought to go to see the doctor. (ought to 的语气比must 弱)你应该去看看医生。 3. 情态动词+完成式 could have done 本来可以；有可能neednt have done 本没必要做某事should / ought to have done 本应该做某事shouldnt / oughtnt to have done本不应该做某事must have done 肯定做了某事（无否定形式）4. 表请求和允许 Can I go with you ? 我能跟你一起走吗？(请求) Could I ask you something ? 我可以问你一件事吗？(表请求用 could 比 can 更婉转)May I make a suggestion ? 我可以提个建议吗？Might I take a look of your work ? 我看看您的大作行吗？Will you kindly tell me the way to the post office ? 请问到邮局怎么走？(表示客气请求)Would you give me your address ? 请你告诉我你的地址，好吗？Shall we talk? 我们谈谈好吗？What should we do next ? 下一步我们该怎么做？(用should 比 shall 表示更客气)Shall he come to see you ? 要不要他来看你？(用于第三人称疑问句)四、尝试演练，合作解疑。1. - It must be Mr. Li who did it. - No, it _ be Mr. Li.A. mustnt B. cant C. wouldnt D. may2. - Its getting cloudier and cloudier. - Yes, Im afraid it _ be raining soon. A. must B. should C. might D. can3. I promised to get there before 5 oclock, but now the rain is pouring down. They _ for me impatiently. A. may wait B. ought to wait C. could wait D. must be waiting4. - _ you make so much noise?- Sorry, Ill take care not to.A. Must; B. Can C. May D. Would5. On Sundays when I was a child, Father and I _ get up early and go fishing.A. could B. would C. might D. should6. I _ have written to him because he phoned me shortly afterwards. A. ought to B. must C. couldnt D. neednt7. - _ the plane have taken off on time?- Im afraid not. The fog was too thick then. A. Need B. Should C. Can D. Must8. This looks like a different kind of stone. What _ we do with it?A. will B. shall C. would D. do9. He has much money at the beginning of every month, but by the end of it he _ little left.A. can have B. will have C. should have D. need have五、当堂检测，拓展延伸。1- Shall I tell John about it?- No, you _. Ive told him already.A. neednt B. wouldnt C. mustnt D. shouldnt2. - Why didnt you come to see me? - I _, but I was too busy yesterday. A. like to B. should like to C. would like to have D. am going to3. You cant imagine that a well-behaved gentleman _ be so rude to a lady. A. might B. need C. should D. would4. There was plenty of time; she _. A. mustnt have hurried B. neednt have hurried C. may not have hurried D. wouldnt have hurried5. When the old man was alive, he _ sit for hours at the door. A. would B. could C. must D. might6. Ive decided to take the job and I _ change my mind. A. mustnt B. cant C. wont D. may not7. My parents never remember my telephone number, and they always _ look it up. A. must B. can C. should D. have to8. - Where is Jack? I cant find him anywhere.- He _ his homework upstairs. A. might h