Unit 2 Cloning Reading task-优质公开课-人教选修8精品
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Module 8 Unit2 ReadingCloning:Where is it leading us?Analysis of the teaching material本课是人教版新教材选修8 Unit2 Cloning(Reading),本课的中心话题是克隆。
本文具体介绍了植物与动物克隆的区别、多丽羊的诞生与死亡及由此引发的争论。
帮助学生进一步认识克隆的意义在于解决医学上的难题,为人类服务。
本节课是这篇阅读的第一节课,目的旨在让学生读懂文章的意思、了解文章的内容、把握文章的中心。
从而提升自己的阅读能力,要让学生学习了解克隆这门技术以及有关的争议。
Analysis of the learning condition:本节课的学习者特征分析主要是根据教师平时对学生的了解以及学生年龄段的思维发展情况而做出的:1)学生是尤溪一中高二年级的学生,有较强的求知欲和好奇心;对新教材有一定了解适应,自主学习习惯基本养成,对教师依赖性相对较低;2)学生有较多的阅读探究及任务型学习的经验;学生能够运用阅读技巧解决课后的相关阅读理解问题;3)学生在过去的生活经验中有与克隆Clone相关的知识储备;对新事物新技术有好奇心,思维活跃,但思考不够深入,逻辑性不强;Teaching objectives:1. Teaching aimsKnowledge aims:To know what is cloning, its benefits, problems, possible dangers as well as arguments and attitudes aroused by cloningAbility aims:1. To develop Ss’ different reading skills especially scanning for key words2. To develop Ss micro reading skill—word guessing3. Build up Ss’ confidence in speaking in EnglishEmotion aims:To be aware that the significance of cloning is to break medical limitation so as to benefit human beings2. Teaching key point and difficult pointTeaching key points:1. The definition of cloning and its benefits and drawbacks2. Developing students’ different reading skills especially scanning for key wordsTeaching difficult points:1. Method of word guessing2. To analyze the structure of an exposition3. Teaching and learning approach1. Task-based teaching approach2. Student-centered teaching approach3. Communicating and cooperating learning approaches4. Teaching aidsa projector and some slides.Teaching proceduresStep I Lead-inLead in the topic by watching a video and ask students what is the video about.Step II While-readingTask One : 1.Match the main idea with each paragraphPara. 1 Introduction/DefinitionPara. 2 Uses and procedurePara. 3 Problems of DollyPara. 4 Impact of DollyPara. 5 Different attitudes to human cloning2.What’s the main idea of the passage?3.Then Raise a question: What type of article is it? Exposition(说明文)Then introduce the features of an exposition:◆written in the third person◆in factual and formal language◆gives different points of view and does not try to persuade the reader to make up his mindTask Two: Detailed readingPara1:What is cloning? What does “it”refer to? When will “it” happen?Para2:What are the two major uses of cloning?Word guessing: “straightforward”When was the cloning of Dolly the sheep born?What did the scientists paid off with a breakthrough?How do scientists clone a sheep? Let’s watch a sho rt movie and give a right order of cloning Dolly ‘s procedurePick out the key verbs in the procedure and retell the procedure according to the key verbsPara3: Fill in the blanks1)At first, the fact that Dolly developed ________ in a natural way was __________.Later, the news ____she lived for six years and a half, half the length of the life of the ____ one was ____.Finally, the problem that occurred to the scientists was that a cloned animal lives_______ than the original one.2)The sheep that donated the somatic cell most probably lived ________years.A. 3B. 6C. 9D. 13Altogether Dolly lived six and a half years, half the length of the life of the original sheep.3)Problems:Cloned animals may develop the________of older animals.Cloned animals may lives __________than the original one.Para4: The impact of DollyIts’ appearance raised and the media and public imagination. Guess from context(上下文):The word “controversial” in Para 4 probably means :____________.A. complicatedB. arguableC. importantD. traditionalPara5: People’s reaction to cloningI.True or false:1)People feared that Cloned Hitlers would do harm to the world.2 )All the research into human beings will be forbidden.3)Some countries will use cloning in a wise way.II. The writer’s attitude towards cloning_____________.A. positiveB. negativeC. neutralD. unknownTask Three: SummaryCloning has always been with us and is here to stay. It’s a way of making an(exactly) copy of another animal or plant. Cloning has two major uses. Firstly, gardeners useit all the time to produce commercial quantities of plants. Secondly, it’s 2._ (value) for research on new plant species and for medical research on animals. Cloning animalsis a difficult task 3.(undertake). At last the determination and patience of the scientists paid 4.in 1996 with a breakthrough—the cloning of Dolly the sheep.The fact 5.she seemed to develop normally was very encouraging. Then camethe disturbing news that Dolly had become 6.(serious) ill and she only lived six and a half years. Dolly’s appearance raised a storm of 7.(object) and had a great impact on the media and public imagination. Newspapers wrote of evil leaders hoping to clone 8.(they) to attain their ambitions. Religious leaders raised moral questions. Now some governments have 9.(forbid) research into human cloning,10.others think cloning is useful for humans.Step IV Post readingDiscussion:Practice activity: Are you in favor of the human cloning or against it? Why?Useful expressions:Team A: I would like to suggest that ______________ .so in my opinion ,human cloning is good. Team B: I don’t agree with you . firstly, from the passage we know that_____________________. Secondly_____________________,Thirdly ,_______________. So I think the research into human cloning should be forbidden . Benefits:Gardeners use it all the time to produce commercial quantities of plants.It opened everyone’s eyes to the possibility to cure serious illnesses.It is valuable for research on new plant species and medical research on animals.Problems or dangers:Dolly’s illnesses were more appropriate to an older animal.Evil leaders may get themselves cloned to attain their ambitions.Religious leaders raised moral questions.Sum up : As a coin has two sides, everything has two aspects. On the one hand, if the cloning is used in a correct way it can bring many conveniences to us. Such as: curing serious illnesses and being used to produce commercial qualities of plants. On the other hand, if the cloning is used in an evil way it can cause much trouble: such as moral questions.教师寄语: One coin has two sides and we should treat things in a wise way.Step IV homeworkWrite a passage titled Is cloning goodor bad? Your passage should include the following:1)What is cloning 2)Advantages of cloning 3)Disadvantages of cloning4)Your opinion of itThe design of the blackboard:Unit2 Cloning-ReadingPara. 1 Introduction/DefinitionPara. 2 Uses and procedurePara. 3 Problems of DollyPara. 4 Impact of DollyPara. 5 Different attitudes to human cloningTeaching reflection:________________________________________________________________________________ ____________________________。