Unit 4 Road safety-Grammar & Fun time-ppt课件-(含教案+视频+素材)-县级公开课-新牛津译林版六年级下册英语(编号：c7cc7).zip

Unit 4 Then and now（Grammar time & Fun time） FFFT3.I couldnt drive twenty years ago.1.Seventeen years ago, I could teach. 4.Three days ago, I was very fat.2.A week ago, I couldnt speak English.couldnt= could notcould/couldnt后接动词原形后接动词原形FFFT3.I couldnt drive twenty years ago.1.Seventeen years ago, I could teach. 4.Three days ago, I was very fat.2.A week ago, I couldnt speak English._ ago表示时间的短语，既可以放在句首，表示时间的短语，既可以放在句首， 与后面的句子用逗号隔开；与后面的句子用逗号隔开； 也可放在句末。也可放在句末。 couldnt= could not could/couldnt后接动词原形后接动词原形FFFT3.I couldnt drive twenty years ago.1.Seventeen years ago, I could teach. 4.Three days ago, I was very fat.2.A week ago, I couldnt speak English._ ago表示时间的短语，既可以放在句首，表示时间的短语，既可以放在句首， 与后面的句子用逗号隔开；与后面的句子用逗号隔开； 也可放在句末。也可放在句末。 couldnt= could not could/couldnt后接动词原形后接动词原形I couldnt drive twenty years ago.= Twenty years ago, I couldnt drive. couldnt= could not could/couldnt后接动词原形后接动词原形When do we use “ago”?A. Simple present tense B. Simlpe past tense （一般现在时）（一般现在时） （一般过去时）（一般过去时）Then (years ago)NowMikeMr BrownGrandpaMrs Browncould read, drawcouldnt writecan do many thingswrote lettersused the telephonewrites emailshas a mobile phonemade friends atbought things from.has e-friendsdoes shoppinglistened to the radioread newspaperswatches reads 一般过去时一般过去时 一般现在时一般现在时表示过去的事情或状态表示过去的事情或状态 表示目前通常性、表示目前通常性、 习惯性的事情或状态习惯性的事情或状态 动词无三单变化动词无三单变化 动词有三单变化动词有三单变化Try to remember what happened to the duck as much as you can. (记得发生在丑小鸭身上记得发生在丑小鸭身上 的事情越多越好的事情越多越好)1. In the past, the duck ugly. 2. His brothers and sisters like him. 3. He fly. But he could swim very well. 4. His friends, the cat and the hen all at him. So he felt sad. 5. Now it is spring. The duck can . He _ a beautiful swan(天鹅天鹅) now!wasdidntcouldntlaughedflyis迅速说出下列单词的迅速说出下列单词的过去式或原形过去式或原形！isflewtakewearloseseegetwent doeatamwerebuy year(s) ago, I was I could I couldnt I didnt Now Im I can I Is it good to grow up ?Why?Homework:1.Write something about you in the past and now.2. Make a summary of irregular past tense forms of verbs. （总结不规则动词过去式）（总结不规则动词过去式）译林版小学英语六年级下册六年级下册U Unit4nit4情态动词情态动词mustcanshouldmustcanshould的比较和运用的比较和运用丹阳市蒋墅中心小学 雍秀兰 How can we cross the road safely? What must we not do on the road? Rule 1: We must look for a zebra crossing, then we must look at the traffic lights.Rule 2: We can wait on the pavement.Rule 3: We must not run or play on the road.情态动词动词原形意思不太一样must是必须的意思，带命令的语气；should是应该，表示建议；can是能够，表能力但不一定是事实。 这三个词都是情态动词，具体区别如下：must：1）表示必须必要 You must come in time.回答must引出的问句时，如果是否定的，不能用mustnt，而是要用neednt或dont have to。如Must we sweep the floor today？Yes, you must./No, you dont have to (you neednt).should:1)表示劝告、建议、命令。如You should go to bed before 9:00./Should I open the window?2)表示应该做，且有一种道义上的责任。如 I should help him because he is too young.can:1)表示能力，如 Can you play football?2)表示请求和允许。如 Can I go now?3)表示可能性，如 We can call for you at nine.mustcanshouldmustcanshould的区别的区别must语气最强、should次之can语气较弱We canshouldmustWe cantshouldntmustnt1.Sometimes,you _find a zebra crossing near you.(cant ,shouldnt,mustnt)2.To keep safe,you can _(waiting,wait)on the pavement.3.You _(should,can)look out for carsand bikes.4.You _（should,can,must)first look left,then right and then left again.5.How _(must,should,can )we go to Beijing?choose and complete课题课题: 译林版六年级上册译林版六年级上册 Unit4 Then and now课时课时: The second period (Grammar time& Fun time)教学目标：教学目标：1. 掌握 could, couldnt, ago 的用法；2. 掌握部分不规则动词的过去式；3. 能在具体情境中区别使用一般过去时和一般现在时；4. 能够就自己、他人及生活的变化展开简单的英文表述；5. 在话题讨论和课堂学习中能够感悟到时间带给我们的变化。教学重点：教学重点：1. 掌握 could, couldnt, ago 的用法；2. 掌握部分不规则动词的过去式；3. 能在具体情境中区别使用一般过去时和一般现在时。教学难点：教学难点：1. 能够就自己、他人及生活的变化展开简单的英文表述；2. 在话题讨论和课堂学习中能够感悟到时间带给我们的变化。教学准备：教学准备： 1. 学生准备两张以前和现在的照片2. 作业纸教学过程：教学过程：:Step1:Lead inT: Im your new teacher today. So do you want to know sth. about me? Here are some sentences. If you think it is right, you can say Yes, Yes, Yes. If its wrong, say No, No, No.1. Seventeen years ago, I could teach.2. A week ago, I couldnt speak English.3. I couldnt drive twenty years ago.4. Three days ago, I was very short.Step2: Look and learn T: Now you have a general idea of me. Lets look into these sentences again. Here.1. could/ couldnt(1) The verb stem of “could” is .(can).(2) The full form of “couldnt” is .(could not).(3) “could” and “coulnt”, theyre both. (情态动词)(4) So after “could” and “couldnt”, we should use. (动词原形)2.agoT: Lets look into them again. These four sentences all include a same word .( ago) Q: Where does “ago” place in the sentence? Please look into sentence1,2 and 4. And what about sentence3? Can you find the rule? Lerning tip2: ago 表示时间的短语，既可以放在句首,与后面的句子用逗号隔开；也可放在句末。 Exercise: Sentence3: I couldnt drive twenty years ago. = Twenty years ago, I couldnt drive. Q: When do we use “ago”? A. Simple present tense B. Simple past tense (一般现在时) （一般过去时）Step3: Look and compare T: Now lets compare these two tenses and try to find the differences between them. OK. Boys and gils, if you can find the two differences, Ill give you a prize. Do you want it? I can give you some tips. Heres a table of changes of Mikes family we lerned last lesson. You can find some clues from it.Tip1: The left is things happend many years ago. The right is things happen now.Tip 2: Pay attention to the words in rend and blue.Step4: Watch and fill in blanks Prize: watch a well-know story The Ugly Duckling1. In the past, the duck ugly. 2. His brothers and sisters like him. 3. He fly. But he could swim very well. 4. His friends, the cat and the hen all at him. So he felt sad. 5. Now it is spring. The duck can . He _ a beautiful swan now!Step5: Quick respneseT: This is the change of Ugly Duckling. Do you want to see my changes in these yaers? But you must do a task well first. If you can do it excellently, Ill show you my photo twenty years ago. Heres the task and rules.Are you ready?（迅速说出下列单词的过去式或原形）is, flew, take, wear, lose, see, get, went, do, eat, am, were, buyStep6: Fun time1. Look and sayA photo of teacher twenty yaers ago. Describe me.2. Listen and choose T: Here are more photos. But not all of them are me. Lets listen and pick my right photo out. (1) Which was I twenty years ago? (2) What about five years ago?3. Show time T: OK. These are my change. What about you? Now take out your photos. Look and say something about you in the past and now. Prepare it for 3minnutes.( Listen and say: One introduce and others listen, the say somthing about him or her)4. Discussion Is it good to grow up? Why?Step7: Read and sayT: We all change a lot. There are many other changes in our life. Lets find. Read the four sentences, and choose one as you like. Try to say something about changes in our life.1. Many years ago, children could play with friends, but now_.2. Many years ago, people ate dumplings, but now_.3._, _, but now.use.4._, _, but now.go. by.T: With time goes, everyone and everthing changes. So Time changes our life.Step8: Homework1.Write something about you in the past and now.2. Make a summary of irregular past tense forms of verbs. （总结不规则动词过去式）