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1、Unit 2 Lesson 4 Animal talk 教材分析本课是北师大版初中英语八年级上册教材第二单元，话题为“交流”。本课是本单元第一课，在承接Get Ready部分有关“Communication”话题的基础上，本课重点介绍动物的交流手段和方式。本课的教学设计分为两个课时。第一课时侧重对课文的理解，首先通过头脑风暴激活学生已有的知识：你所了解的动物都有哪些交流方式。随后通过阅读，获取动物的三种主要交流方式。第二遍和第三遍阅读获取细节信息：课文中所提到的动物分别采用哪种交流方式；动物交流的目的是什么。最后结合课文信息和Get Ready部分所讨论的话题内容进行语言输出活动：对比人类和动
2、物的交流有什么不同。在本节课中还会渗透现在完成时的相关知识，主要从语用功能层面，使学生对现在完成时有初步的认识和了解。第二课时在复习课文内容的基础上，引入本课的重点语法内容现在完成时，通过观察和分析例句，发现并总结现在完成时的含义和句型结构。通过分层练习，进一步体会现在完成时的含义，以及与一般现在时的区别。第二课时的教学还包含对学生学习策略的指导既不知道词义的情况下可以查字典，而在诸多义项中选取恰当的词义还要回归上下文。教学内容话题： animal talk词汇： blog, face-to-face, sign language, text messageant, tail, interes
3、ted, missing, discover, gentleman, invite, lady, human, mad, area, knowledge, since, hide策略： 围绕“交流”的话题通过阅读获取相关信息，并在语境中观察学习语言知识，习得时态现在完成时。语法： 现在完成时第一课时First Period教学目标：在本课学习结束时，学生能够：1. 说出人与人交流的主要方式；2. 通过阅读找出不同动物交流方式的信息；3. 使用获取的信息阐述人与动物交流方式的区别；4. 体会交流的重要性以及人类了解动物交流方式的必要性，尊重爱护动物；5. 初步体验和感知现在完成时的语用功能和含义
4、。教学过程教学活动设计意图互动模式&时间Pre-readingStep 1l Brain storm：ask Ss to think of how we communicate with each other in our daily life? l T shows pictures of different ways of communication and asks Ss to talk about the way in each picture.1. 激活有关“交流”的背景知识。2. 激活有关“交流方式”的词汇，如by email, by text message, by sign la
5、nguage等。CWIW4Step 2l Ss work in pairs to use the key words to describe these photos in Get Ready Ex.1.l Ss think about when they communicate with others.1. 在情景中复现和运用新词汇，为下面的讨论做铺垫。2. 思考我们何时需要交流，为读后活动做铺垫。CWIW6Step 3l T shows pictures of some animals and asks Ss to think of the question: How do these a
6、nimals communicate? T elicits Ss to say sentences like this: I think ants communicate by body language.教师借助图片，带领学生熟悉新词汇。并引发学生思考，激活学生关于动物交流方式的背景知识。CWIW3While-readingStep 41st readingl Ss read the passage to find out the 3 main methods of animal communication. l Ss check answers in class.2nd readingl
7、Ss read the passage again and find out what methods these animals use to communicate. l Ss check the answers in class.3rd readingl Ss read the passage again and find out for what purposes animals communicate.l Ss check the answers in class.1. 快速阅读，获取有关动物交流方式的信息。2. 细读课文，获取每种动物交流方式的细节信息。3. 细读课文，获取每种动物
8、交流目的的信息。CWIW10Step 5l T ask Ss to ask and answer in pairs according to the information in the table “how do ants communicate?” and “Why do ants communicate?”l Ss listen and read the text with the recording.1. 借助表格，同伴之间互相问答，内化文章信息，2.模仿正确的语音语调，强化语言和信息。CWIW5Post-readingStep 6l Ss express their own opin
9、ions about “How is human communication different from animal communication”.l T leads Ss to think why human should get to know the methods of animal communication.1. 在语言和信息方面检查和落实本课的教学目标。2. 学生在存异中求同，感受动物的交流除了食物、求偶等基本需求外，也有同人类一样的情感需求。引导学生在思考和交流中体会了解动物交流方式对人类的意义，感悟到人类需要尊重爱护动物。同时初步感知现在完成时在句子中的意义和用法。CWI
10、W12Homework1 Read the text aloud.2 Write down your opinion about “How is human communication different from animal communication?”第二课时Second Period教学目标在本课学习结束时，学生能够：1. 使用字典查找生词信息，并根据上下文选择恰当的义项；2. 在语境中体会、发现和归纳现在完成时的用法和语意功能；3. 运用有关动物交流的信息和词汇，和同伴谈论自己所了解的animal communication这一话题。教学过程教学活动设计意图互动模式& 时间Revi
11、ew Step 1l Ss think of the topic they talked about last period and the ways of animal communication.回顾上节课获取的信息，复习上一课所学内容。IW, CW5Step 2l T shows 3 words from the text and asks Ss to tick their correct meaning in the text.对学生进行学习策略的指导。不明词义时可以查字典，而选择恰当的词义时要回归上下文，结合语境判断。Grammar Step 3l T shows 3 questio
12、ns and asks Ss to answer them with the sentences in the text. l Ss focus on all the answers and think of when the things happened and if we know the exact time.l Ss think of among the 3 sentences which show that the past action is still important now and which show that an action began in the past a
13、nd continues into the future.l T asks Ss to find more sentences in present perfect tense in the text.1. 在语境中进一步感知现在完成时的用法和功能，为下一步主动观察和总结语法做准备。2. 学生在教师的引导下, 发现和分析人称代词和物主代词在上下文中的指代作用，体会语法的表意功能。CWIW6Step 4l T summarizes the meaning of present perfect tense.l T asks Ss to complete the table with have or
14、 has.l T checks the answers with the whole class.l T shows some sentences in present simple in the text and asks Ss to think of the differences between the 2 tenses. 1. 在体验的基础上总结现在完成时的含义。2. 让学生自己体会和观察现在完成时结构。通过填写表格，总结和归纳现在完成时的形式。3. 让学生在语境中体会一般现在时与现在完成时的区别。IWCW9Step 5l Ss do Ex. 7 individually and th
15、en discuss in pairs.l T checks the answers.l Ss do Ex. 8 by discussing together.l T checks the answers.运用所学现在完成时，完成填词和单句层面的练习。进一步体会现在完成时的结构、含义，以及与一般现在时的区别。为下一步在真实交际中使用做铺垫。CWPW10Grammar in UseStep 6l T talks with Ss about if they keep pets or what they know about animal communication.l Ss talk to their partners about if they keep pets or what they know about animal communication.l T invites some Ss to talk about what they know about animal communication. 1.在交流中为学生做示范，引导学生讨论动物交流的话题。2.创设真实情境，使学生运用自己的背景知识以及课文中获取的信息谈论动物的交流。PW,CW 10Homework Write down what you know about animal communication.
