1、课题课题: 译林版译林版六六年级上册年级上册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。教学教学重重点：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
2、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. 作业纸教学教学过程：过程：:Step1:Lead inT: Im your new teacher today. So do you want to know sth. about me? Hereare some sentences. If you think it is right, you can say Yes, Yes, Yes. If itswrong, say No, No
3、, No.1. Seventeen years ago, I could teach.2. Aweek ago, I couldnt speak English.3. I couldnt drive twenty years ago.4. Three days ago, I was very short.Step2: Look and learnT: Now you have a general idea of me. Lets look into these sentences again.Here.1. could/ couldnt(1) The verb stem of “could”
4、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 sameword .( ago)Q: Where does “ago” place in the sentence? Please look i
5、nto sentence1,2 and4.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 tenseB. Simple past tense(一般现在时)（一般过去时）Step3:
6、 Look and compareT: Now lets compare these two tenses and try to find the differences betweenthem.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 welerned last lesson. You can find some clu
7、es from it.Tip1: The left is things happend many years ago. The right is things happennow.Tip 2: Pay attention to the words in rend and blue.Step4: Watch and fill in blanksPrize: watch a well-know story The Ugly Duckling1. In the past, the duckugly.2. His brothers and sisterslike him.3. Hefly. But h
8、e could swim very well.4. His friends, the cat and the hen allat 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 inthese yaers? But you must do a task well first. If you can do i
9、t excellently,Ill show you my photo twenty years ago. Heres the task and rules.Are youready?（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 sayAphoto of teacher twenty yaers ago. Describe me.2. Listen and chooseT: Here are more photos. Bu
10、t not all of them are me. Lets listen and pick my rightphoto out.(1) Which was I twenty years ago?(2) What about five years ago?3. Show timeT: OK. These are my change. What about you? Now take out your photos. Look andsay something about you in the past and now. Prepare it for 3minnutes.( Listen and
11、 say: One introduce and others listen, the say somthing about him or her)4. DiscussionIs 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 somethingabout changes in ou
12、r 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）
