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1、第三课时Section A (Grammar Focus4c)【学习目标】1理解并熟练运用情态动词must，might，could和cant表示推测的用法和区别。2会运用上述单词和相关句型对事情进行合理推测。3通过交流和表达，进一步掌握本课所学的重点单词和短语。【学习重点】情态动词表推测的用法和区别。【学习难点】情态动词表否定推测的用法和区别。学习提示 回顾：上节课我们学习了一个小故事，讲述的是一个小城镇最近发生了一些奇怪的事情。有哪位同学能给大家再复述一下这个小故事里面的一些内容吗？注意可以使用一些我们上节课学过的表达猜测或是推测的句型。然后，出示这个故事的相关图片和短语，使同学们的复述更容
2、易、更顺畅。Task 1学习提示 预习教材P60的单词，通过音标认读单词，然后在课文中画记新单词并标注中文意思。【学法指导】对不同时态的推测 情态动词可以表示说话的语气。本单元主要学习情态动词must，can/could，may/might表示推测的用法。表示推测时，要根据肯定、否定或疑问的不同句式选用不同的情态动词。“情态动词do sth.”表示对现在事情的推测；“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事情的推测。情景导入生成问题来源:学优高考网gkstk来源:gkstk.Com来源:gkstk.ComOur
3、 neighborhood used to be very quietHowever，these days, strange things are happening.Every night we hear strange noises outside our window.Someone thinks it could be a wolf，but some think that it must be teenagers having fun.My parents called the policemen.They think it might be the wind.I dont think
4、 so.Everyone in our town is feeling uneasy，there must be something visiting the homes in our neighborhood.Most people hope that this animal or person will simply go_awayThe noisemaker is having too much fun creating fear in the neighborhood.自学互研生成能力Task 1Lets read new words and the phrases.1I can re
5、ad.(我会读)来源:学优高考网gkstk预习下列单词，争取自己能正确拼读。拼读成功后再在课文中把单词标记出来。laboratory，outdoors，sleepy，cough，crowded2I can write.(我会写)根据汉语提示，写出下列英语短语。(1)淋浴take_a_shower(2)有些咳嗽cough_a_lot(3)感到瞌睡feel_sleepyTask 2Lets make conversations and interview.1I can write.(我会练)完成教材P60上4a和4b的练习。2I can make conversations.(我会编对话)结合本课
6、时所学句型及4c的情境编写对话。3I can summarize.(我会总结)情态动词表推测的区别：(1)肯定推测amust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。bmay用在肯定句中，表示对现在把握不大的推测，意为“也许，可能”。ccould，might也可表示推测，常用在过去时中；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。dcan用在肯定句中，表示理论上的可能性。They must be in the classroom now.他们现在一定在教室里。Peter may/might have bee
7、n hurt in the car accident.彼得可能在车祸中受了伤。Task 2学习提示(1)要求学生朗读并翻译P60：Grammar Focus表格中的句子，并在情态动词下画线，并说出它们分别代表什么意思。(2)教师指导学生完成4a和4b的练习，并组织学生核对答案，解决疑难。(3)要求学生结合所学句型，归纳总结情态动词表推测的具体用法和区别。【备注】来源:学优高考网(2)否定推测a表否定推测时，cant/couldnt语气最强，指“不可能”，带有惊异、怀疑的感情色彩。b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”。单项选择。(A)1.Wh
8、os the man over there? Is it Mr.Black?It _ be him.Hes much taller. Acant Bmustnt Cshould Dmay(D)2.Look at the boy playing basketball on the playground.Is it George?It _ be him.He told me he would play basketball after class，but he was not sure.Amustnt Bmust Ccant Dmight交流展示生成新知Show in groups.(Time：s
9、ix minutes)First the students read the words and phrases in groups，then read together and sum up the usage of the words in groups，mark the difficult words in pronunciation and understanding(they can ask the teacher for help)At last write them on the blackboard.First the students discuss and check th
10、e answers in Task 2，then discuss，make dialogues and set scenes to perform the dialogues.Class show.(Time：sixteen minutes)1I can read.Read together，pay attention to the pronunciation of “laboratory” and “crowded”；Consolidate the word learning by word game.2I can write.Students translate the phrases i
11、nto English by answering quickly；Read together and try summing up the usage of different tenses of model verbs expressing speculation；Spot test：Consolidate the usage of phrases by making sentences.1I can practice.Ask students to finish the exercises；Check the answers by answering quickly and explain
12、.2I can make conversations.Students make dialogues according to the task；Set scenes to perform the dialogues.3I can summarize.Students sum up the meaning and structure of different model verbs expressing affirmation and negation.当堂演练达成目标根据上下文意思及汉语提示补全短文When I grow up，I am going to do what I want to
13、do.I 1.might_be(可能当) an English teacher in the future because I like English and children.Or I 2.might_move(可能搬)to Beijing or Shanghai because I like the two cities.But how 3.can(能) I achieve my dreams? First，I 4.must_finish(必须完成) my schoolwork and study English very hard.I must do my homework 5.carefully(认真地)Could you please tell me something about your dreams?课后反思查漏补缺收获：_困惑：_
