Book8 Unit2 CloningPeriod 1 Reading在英语教学中“阅读理解能力”是学生从阅读中获取信息的能力以及对文章理解的速度和准确性的关键因素。
培养学生的阅读能力是课文阅读教学的主要目标，同时还要注意培养学生在阅读过程中获取和处理信息的能力，让学生学会利用相关的英语知识去解读英语阅读材料。
本节课是一节阅读课，设计过程如下：导入引出克隆这一话题 --- 通过略读掌握段落大意，文章结构( read for structure )--- 通过精读了解文章细节信息( read for information )--- 通过对细节的推理学会猜测词义和推断作者立场态度 ( read for reference ) --- 通过整合信息，以高考语法填空的题型小结课文内容( read for consolidation ) ---独立思考后合作讨论( read for critical thinking ) --- 课后作业(写作拓展)。
教材里本单元内容，语言技能和语言知识都是围绕“克隆”这一中心话题设计的。
具体涉及“什么是克隆” , “克隆羊多利是如何诞生的”，“克隆的利与弊”等。
教师可在充分利用教材资源的基础上，结合学生的实际情况设计教学活动，旨在帮助学生有效地掌握阅读技巧，形成有效地学习方法和阅读策略，同时了解说明文篇章结构和写作特点，为下一步进行议论文的写作教学做好准备。
目标聚焦一、知识点初步理解、掌握克隆意为无性繁殖，克隆技术即为无性繁殖技术。
学习课文中关于克隆这一新生物技术的有关知识，学习分析课文中的长难句子，初步感知课文中出现的的本单元要学的语法现象。
二、能力点1、能理解文章主旨大意，获取信息、处理信息、进行推理判断和表达的能力。
2、形成分析篇章结构的能力，提升逻辑思维能力3、学会增加语言的输出量，提高语言表达能力。
4、能利用上下文猜测生词词义三、兴趣点 1、利用已获取的信息发表自己对进行人类克隆问题的看法。
2、克隆技术日新月异，在教授本单元时，需随时关注其发展的最新动态。
四、德育点认识克隆人的危害———对人类在伦理、道德、法律等方面造成的巨大影响，应给予抵制。
Before class ( 课前自主学习，合作探究 )Vocabulary (词汇预习)Preview the new words of this text.clone commercial producer undertake arbitrary object forbid accumulatebother regulation resist unable argument reasonable obtain cast down object to the media in favor of be bound to (do) from time to time pay off设计意图】通过预习词汇为下一步的阅读扫清生词障碍。
In class【Step 1 Warming up 】T: Yesterday I surfed the internet and found an interesting story .Do you want to enjoy it together?S: Yes .T: (look at the slide ) Look at the two ladies ' dialogue , what happened to Mary's husband?S:He was cloned.T:Do you think it is true ?S: No .T:But if someday it comes true , How will you feel ?S1: Exciting .S2: Terrible .S3: ⋯T: So, you know, we have different attitude to cloning? Will it bring ushappiness or sadness? Do you want to know?S: Yes.T: Ok , our topic today is about cloning.Step 2 Read for structure 】1.Give students the main idea of each paragraph and let students find out the correct order .A.Cloning has two major uses.B.Cloning is a way of making an exact copy of another animal and plant.C.The effect of Dolly.D.It is forbidden to clone human beings.E.The problems of DollySuggested answer : BAECD .2.Divided the text into 3 parts.Part 1(para.1)What is cloning?Part 2(para.2.3.4)Information of Dolly.Part 3(para.5)reactions to cloning.Step3 Read for information 】一 . listen to para.1 and fill in the blanks:1.What is cloning?It is a ___ of making an exact _ of another animal or plant. (suggested answers: way ,copy )2.Does it only happen in plants?No. In fact it also happens in . (suggested answer: animals)( T:Who is the most famous in cloning field ？S:Dolly the sheep.T:let ' s enjoy a short movie to see how Dolly came into being? )( 观看一个多利羊克隆过程的小视频 )二． Read paragraph2.3.4 and get detailed information of Dolly :(1)How many major uses do cloning have?Firstly, ⋯ commercial ⋯Secondly, ⋯ research ⋯(T:While reading, wes hould pay more attention to this kind of words, such as firstly and secondly and so on. These can help us get the useful information quickly and clearly. )(2)2. Which one is difficult to undertake ( 承担 )? ( B )A. Cloning plants.B. Cloning animals.(T:Cloning animals is much more difficult. No wonder Dolly had problems. )(3)What are the problem?At first , the fact that Dolly developed ____________________ in a natural way was ________________________________________ .Then came the ____ news ______ Dolly had become _______ .Finally, the problem that occurred to the scientists was that a cloned animal lives ____________ than the original one.(suggested answer: normally ，exciting ；disturbing ；that ；seriously ill ；shorter) (T: Because of the problems ，cloning is controversial. And what does controversial mean？)(4)The word “ controversial ” in para. 4 probably means .A. complicatedB. arguableC. important(T:Cloning is controversial and different people have different reactions to it. What are the different reactions? Please read para.5. )(5)Choose the proper words to describe different people ' s reactions to cloningambitious/nervous and conservative/positive /negative/moralEvil leaders ___________________Religious leader ________________Governments ____________________Some countries __________________China __________________________【 Step 4 Read for inference 】( T: What is the writer 's attitude? Canyou infer? )(6). The writer ' s attitude towards cloning.( C )A.positiveB. negativeC.neutral (中立的)D. indifferent (漠不关心的)And the let students express their reason :Because the author doesn ' t state their personal opinion about cloning【 Step 5 Read for structure 】Cloning Cloning is a way of 1.___ (make) an exact copy of another animal orplant.has two major uses. Firstly, gardeners use 2.to produce plants. Secondly, it isof great 3.___ (valuable) for medical research on animals. Cloning plants is straightforward while the cloning of animals is 4.___ (complicated)than that. The procedure is difficult 5.__ (undertake).In 1996, scientists 6.___ (success) in cloning Dolly the sheep. Then came the disturbing news 7.___Dolly was ill.Altogetherobjections and had a great impact 9. ___the media and public. Governments became nervous and many forbade research into human cloning. 10.___, scientists still wonder whether cloning will help or harm us and where it is leading us.1. ___________ 2 _______________ 3. __________ 4 ___________5. ____________6. ______________7. __________8. __________9. ____________ 10. _____________ （写答案栏中，注意书写工整规范）Step 6 Read for critical thinking Are you in favor of cloning or against it ? And why?(Make full use of the advantages and disadvantages mentioned in the text.)You can use the following sentences :I am ⋯ cloning. My reasons are as follows :For one thing ,Dolly lived for six and a half years. Dolly s appeara nce raised 8.___storm of 】 (Discussion )For another ,Besides ⋯From above, I think cloning willStep 7 Homework 】（分层作业）1.Surf the internet to look for more information about cloning.pare the advantages and disadvantages of cloning.3.Write a short passage about your opinions on cloning.学情分析本节课的教学对象是高二基础班的学生，学生学习态度端正，学习兴趣浓厚，爱观察爱思考，乐于参与英语学习活动，且学生对克隆都有所了解，但阅读技巧的训练比较欠缺，而 Unit2 Cloning 又是一篇介绍克隆技术的说明文，专业性强，文中生词多，学生理解难度大。