甘肃省金昌一中高三英语 Unit1 grammar points1学案.doc

课题b3unit 1 grammar1学习目标enable the ss to use modal verbs 合 作互动学生活动教学设计及二次备课学习重点learn the modal verbs互动与展示 用于肯定的陈述句中，表示理论上或习惯上的可能性。it can be quite cold here in winter.这里的冬天有时还真够冷的。even an experienced doctor can make a mistake.即使经验丰富的医生也会犯错误can与be able to(1)can只有现在时和过去时could，而be able to则有更多的时态变化，在将来时、完成时和非谓语动词中只能用be able to。(2)can一般指自身具有的能力，而be able to则表示经过一段时间的努力后所具有的能力，相当于manage to do或succeed in doingnew contents: ss have a discussion about the two parts.after finishing the discussion, ask students to show their points on the blackboard. 学习难点enable the ss how to use modal verbs 自主研讨学生活动教学设计及二次备课目标与导入learning aim: 1. to learn modal verbs2. enable the ss how to use modal verbslead-inaim showing lead-in自学与诊断1can与could的用法(1)表示能力(could是过去式)。i can speak english fluently while he cant.我会说流利的英语而他不会。(2)表示猜测“可能”，一般用于疑问句和否定句(could是过去式)。 look! someone is coming! who can it be?看，有人来了，会是谁呢？ it cant be him. he has gone to paris.不可能是他，他去了巴黎。(3)表示请求和许可(could表更委婉的语气，回答时只能用can)。you can use my dictionary.你可以用我的词典。 could i use your computer? 我能用一下你的电脑吗？ yes, you can. 是的，你可以。homework comments and revision:ask the students to review modal verbs精讲 与点拨2may与might的用法(1)表示允许、许可。might在语气上比may更委婉。以may/might开头的问句在否定回答中要用mustnt。you may keep the book for two weeks.这本书你可以看两周。 may i use your telephone?我可以用你的电话吗？ yes, you may./no, you mustnt是的，可以。/不，不可以。(2)表示把握不大的推测，意为“可能”，用于肯定句。might语气更加不肯定，指现在或将来，只有在宾语从句中might do (be)才表示过去的可能性。i think he may come today/tomorrow.我认为今天/明天他可能会来。i thought you might like something to read, so i bought some books for you.我想你可能喜欢读点东西，因此我给你买了些书(3)may用于祈使句表示祝愿。may you have a good journey!祝你旅行愉快！may you succeed!祝你成功！ the teacher properly gives instructions.检测与评价学生活动教学设计及二次备课达标检测题精讲与点拨检测与纠错3will与would的用法(1)表示意志、意愿和决心用于各种人称，will指现在，would指过去。john promised his doctor he would not smoke, and he has never smoked ever since.约翰向医生许诺他不再吸烟，自从那时他从没吸过烟。please give me another chance; i will never do that again.请再给我一次机会，我再也不会做那事了(2)表示请求、建议。用于第二人称的疑问句，would表示更委婉的语气。would you mind opening the window for me?请你为我打开窗户好吗？will you call back later, please? 请过一会儿再打过来好吗？(3)表示习惯性的动作，意思是“总是；习惯于”。will指现在，would指过去。fish will die without water. 鱼离开水总是要死的。she would sit there for hours, reading a book.她过去总是会坐在那里读几个小时书。the teacher properly gives instructions.点津would与used to两者均表示“过去常常”，但would仅表示过去的习惯性动作(不表状态)，现在有可能还如此，也可能不再那样；used to既表示过去的动作也表示过去的状态，不过现在不再做或不再有那种状态了。he would take a walk near the forest in the evening. 以前，他晚间常在森林附近散步。he used to take a walk near the forest in the evening.他过去常在晚间到森林附近散步。(而现在已不在那里散步了)(4)用于否定句，表示“不肯；不乐意”。no matter what i said, he wouldnt listen to me.无论我说什么，他就是不肯听我的。1 the room is so dirty._ we clean it? ok.awill bshall cwould dcan2_i use the dictionary to look up new words in the exam?im afraid not.awould bshould cmay dwill3 must he come to sign this paper himself? yes, he _aneed bmust cmay dwill4 are you coming to jeffys party? im not sure. i _ go to the concert instead.amust bwould cshould dmight5 is jack on duty today? it _ be him, its his turn tomorrow.amustnt bwont ccant dneednt总结与升华1. (2012全国卷)im going to europe on vacation together with john if i _ find the money.acanbmight cwould dneed2. (2011江西高考)it _ be the postman at the door. its only six oclock.amustnt bcant cwont dneednt3. (2012四川高考)i got close enough to hear them speaking chinese, and i said “ni hao ”， just as i _ do in china.amust bmight ccan d