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1、优化教学设计，提高教学效益单元/章/课： Unit4 第 1 课时课题Then and now课型新授教材分析本单元的话题是“过去和现在”，通过对比Mike一家人过去与现在的学习、工作和生活等方面，让学生感受科技如何改变生活。两种时态放在一起对比呈现，是一个教学难点，教师要启发学生通过观察对比等方式，总结归纳两种时态的用法。目标表达1.听说读单词then and now ,e-book, mobile phone, newspaper, radio, telephone, e-friend, anywhere, could，并能运用于语句中。2.掌握动词过去式的发音及用法，会说years ag
2、o,could/ could notNow,3.能正确地理解并朗读对话内容，在教师的引导和帮助下尝试复述课文内容。4.通过过去和现在的对比，感受个人的成长和社会的进步。学情分析学生有什么1.本课的不规则动词过去式都学过了2.已经会说years ago,could/ could notNow,学生缺什么1.能正确地理解并朗读对话内容，在教师的引导和帮助下尝试复述课文内容。2.通过过去和现在的对比，感受个人的成长和社会的进步。重点能正确地理解并朗读对话内容，在教师的引导和帮助下尝试复述课文内容难点能正确使用一般过去时和一般现在时表达过去和现在的事情。方法手段任务型学习 小组讨论法教 学 过 程（包
3、括：主要教学流程、重难点处理过程与方法、亮点/精彩片段）教师教什么、怎么教学生学什么、怎么学Step 1预习反馈1.T: Do you know the song? T: Yes, time flies quickly. We are growing up, and the things around us are changing. We know, the world is changing. 2. T: Then what is changing? Do you have your idea?Step2. 新知呈现1. T: Perfect. I like your ideas. Now
4、 Ill show you a family. Do you know them? Who is he/ she? 2. Then, how about this boy? Yes, this is Mike six years/ Mr Brown twenty years ago/ Mrs Brown twenty years ago/ Mikes grandpa thirty years ago. T: （总结）The time before, we can use this word: Then. ( what does it mean?)T: Today, we are going t
5、o learn Unit 3. Then and now.T: SO ,can you say sth. about Mikes family? （对比说，is/are, was/were）T: They have changed a lot. And this lesson, well know more about the changes of Mikes family.Step3新知呈现和体验操练1. (图) This boy, he is Mike. Now, he is a young boy. And he can do many things now. Lets guess, w
6、hat can he do? 2.（图）T: Could Mike do all these things six years ago? What could he do? （读could）I give you two fist letters here. Can you guess? What couldnt he do? T: So, six years ago, Mike could read. but he T: Can you describe little Mike six years ago and young Mike now? 总结：In fact, everyone is
7、changing everyday( the changes of people), What they look like is changing(appearance) , and what they can do is changing, too(ability). 3. T: And we know, as we people are changing everyday, our life is changing, too. Now lets listen to the tape, and try to catch: what they did then and what they d
8、o now. And remember to tick them quickly. After learning lets check.Step4 疑难解析 1.look at Mr Brown. This is Mr Brown twenty years ago. And This is Mr Brown now.What did he do then and what does he do now? 1)Read the paragraph quickly, and try to find out the communicate tools.2)read the four words. T
9、: They are needed when we want to contact others. So ,which one do you like? And Why?3) How about Mr Green? What did he use twenty years ago? （match: wrote letters, used the telephone） How about now? ( match: writes e-mails, uses the mobile phone)T: Lets imagine where he did or does these things. Wh
10、ere did he wrote letters/ use the telephone/ write e-mails/ uses the mobile phone?4) T: Lets read this paragraph together. Now, try to describe Mr Brown.（总结）T: Then and now, the way to contact people is changing . 2. T: look at the pictures, do you remember her? Mrs Brown Lets see what changes have
11、happened on her.1) T: What is she doing in the picture? 2) T: Are you right? Read it please. (解释e-friends) So maybe she is doing some shopping or chat with her e-friends on the Interenet.3)And this is the picture of her twenty years ago. Then she was a schoolgirl. Where did she make friends? And whe
12、re did she buy things?4) Read the text with your partners. 5) T: Lets try to fill in the table , OK? （总结：It tells us the way to _ and the way to _. And the ways are changing now.）3. 1)T: And besides these, the way to get news is changing now. How do you get news, boys and girls? ( I get news from_.
13、)2) T: How did Mikes grandpa get news thirty years ago, and how about now?(3) Read the text together, and try to retell it.4. Read the whole text together.5.T: What do you think? You can discuss in groups first.Ss: Their life is(colourful, cool , modern, happy) ,becauseStep5 合作探究T: This time, lets w
14、ork in 4. Each one chooses a part to read. Then use the phrases on the blackboard to make a report about your part.S: Where is time going?学生回答( Mike, Mr Brown, Mrs Brown, Mikes grandpa)学生guess：He can跟读could学生 guess：He couldnt（师生一起读文本）学生自己快速读课文找出答案。速读课文找出有关 Mr Green “Then and now”并match（学生复述）学生根据表格说一遍。分组练习朗读，然后四人一小组，上台借助板书进行反馈。课堂巩固训练课后安排巩固练习1.Listen and read Story time.2.Retell Story time on P38预习内容Bring two photos and think of the changes between two photos on P40. 反思与 重建 单元/章/课： Unit4 第 2 课时课题Then and now课型新授教材分析本单元的话题是“过去和现在”，通过
