高二英语选修8 Unit2 Cloning-Reading教学设计与反思朱义东一. 教材分析本单元以Cloning为话题，旨在通过单元教学，使学生了解克隆技术的优缺点，学会表达和支持个人观点，能用所学的有关Cloning的词汇去表述自己对这一新技术的观点和看法。
二. 教材重组从话题内容上分析，Warming Up 与Reading相一致；而从训练目的上分析与TALKING比较一致。
从教材份量来说，可将Warming Up和Reading整合在一起，设计成一节任务型“阅读课（精读课）”。
三.教学目标Teaching goals1. Target language目标语言a. 重点词汇和短语clone，commercial，producer，undertake，arbitrary，object，forbid，accumulate，cast down，object to，the media，in favour ofb. 重点句子It is a way of….The fact is that….The question that occ urred is….2. Ability goals能力目标Enable the students to describe cloning: What is the advantages of cloning？ What is the problems or dangers of cloning？What is your opinion of cloning？3. Learning ability goals 学能目标Help the students learn how to describe cloning.Teaching important points 教学重点How to describe cloning.Teaching difficult point 教学难点Help the students analyze the writing techniques of the article.Teaching methods 教学方法Skimming, task-based method and debate method.Teaching aids 教具准备A recorder, a projector and some slides.Teaching procedures & ways教学过程与方式Step I Lead-inShow some pictures of Dolly the sheep(多莉羊)、 Astrawberry plant(草莓植物)、 Twins（双胞胎婴儿）、 Identical dogs(克隆狗)的图片，on the screen. Get students to look at the pictures and discuss:which ones are natural clones and which ones are man – made? Then explain how they differ.S: I think the twins are natural clones and the Dolly sheep is man-made. T: You are right! Can you explain how they differ?S: The twins were born at the same time, but the Dolly sheep is man-made.T: Anything else? Who want have a try?S: I think the identical dog is man-made.T: Good Job【设计说明】克隆技术是一门前沿科技，学生对此兴趣浓厚，利用幻灯片展示当今克隆技术产生出来的动植物照片，学生的兴趣被瞬间激发，注意力高度集中，学习的热情高涨。
克隆的荧光小猪（左）和正常小猪（右）4Cloned rabbitReading - I ScanningWrite the letter “T”if the statement is true. Write “F”ifit is false.FTReading1.It can be inferred from the passage that a clonedanimal _____ •A. usually lives as long as the original oneB・ usually lives longer than the originalone ；八・usually lives shorter than theoriginal oneD< is usually as healthy as the original one3.The cloning of Dolly the sheepsucceeded because ___ ・A. its easier to clone a sheep than other animalsthe scientists were determined and worked hard with patienceC・ the scientists were rewarded and got lots of moneyD・ many other attempts to clone mammalsfailed4.The lamb is the clone of the cell from sheepbecause ______________ .A.it provides the egg cellB.it gives birth to the lamb(V it provides the nucleusD. it is a female sheep5.The sheep that donated the somatic cellmost probably lived ______ years.A. 3B.6C.9 12Careful reading]Cloning is a wa Y of making an exact copy of 2：Cloning has another animal3.The4.The Problems o f Dolly.5It is-effeet to clone human beings.forbiddenProblems or dangers of cloning■ 1 ・ Animal clones may develop the illnesses of older animals.Animal clones may die younger than the donor animals.3.4.There are moral objections to cloning humanbeings.Advantages of cloning1.M edical cloning could produce cures forserious illnesses in humans.2.Cloning plants can produce plants of similar quality for sale.3.Cloning plants can be useful for research on new plant species.4.Cloning can help save endangered animals.意大利狂人医生:安蒂诺里冒死也要克隆人的科学家:布瓦瑟利耶thinking |・■■■■■■■■■■■■■■■■■■■■■■■■■■■■■Cloning people is a good thing ,or a bad thing?克隆人是福音，还是恶兆？^^^Homework:兰hV，What happens next?e ' *A_—；；r-i ________*<T4。
