2010年郑州市高中英语优质课竞赛决赛教案.doc

2010年郑州市高中英语优质课竞赛决赛教案人教版选修8 Unit 2 Cloning阅读课（Reading）郑州五中 李靖学习内容 warming up, reading and comprehending 学习目标1.能在上下文中理解下列单词和短语的意思：exact, straightforward, complicated, breakthrough, procedure, nucleus, somatic, embryo, objections, pay off, cast down, have an impact on.2对“Cloning: Where is it leading us?”这篇文章进行阅读，能通过快读把握文章的段意；通过细读获取文章的细节信息；通过研读解决文章中存在的关键问题。3感受科技的发展，了解克隆的利弊，对克隆技术进行反思。一、预习检测 （课前完成）(1)Surf the Internet and get as much information about cloning as possible.(2)Find out the words and expressions in the text according to the given information.单词：1. 精确的；准确的 adj. _ 2. 同一的；一模一样的 adj. _3. 商业的；贸易的 adj. _ 4. 简单的；直接 adj. _5. 复杂的；难懂的 adj. _ 6. 程序，步骤 n. _7. 原子核，细胞核 n. _ 8. 胚，胚胎 n. _9. 任意的 adj. _ 10. 道德上的 adj. _11. 保守的，守旧的 adj. _ 12. 积累，聚积 vt.& vi. _短语：1. 得到好结果；取得成功；偿清 _ 2. 卵细胞 _3躯干细胞；体细胞 _ 4. 沮丧；不愉快 _5适用于 _ 6. 对有很大影响 _7. 实现sb. 的野心 _二、学习与整合 （课堂完成） CLONING: WHERE IS IT LEADING US?1. Fast-reading (4m)MatchPara. 1 It is forbidden to clone human beings.Para. 2 Whats cloning?Para. 3 Cloning has two major uses.Para. 4 The problems of Dolly.Para. 5 The effect of Dolly.2. Careful reading (8m)Fill in the blanks cloneDefinition (para.1)Cloning is a way of _ of another animal or plant.Major uses(para.2)1. Gardeners use it all the time to produce _ quantities of plant.2. Cloning is valuable for research on new _ andfor _ research on animals.Procedure(para.2)Sheep A an _ cell egg cell without _Sheep B a _ cell nucleus taken out of the somatic cellthe clone sheep sheep C _Sample:Dolly the sheep (para.3)Dolly seemed to develop _, but actually seriously _.Dollys illnesses were more appropriate to a much_ animal, which _ cloning scientists.Dolly lived _ years altogether, _ the length of the life of the original sheep.Impact(para.4) Dollys appearance raised a storm of _. Cloning opened everybodys eyes to the possibility to cure _ and even to produce _.Reaction(para.5) At present, human _ and _ needed for cloning research are difficult to obtain. Evil leaders hope to clone themselves to _. Religious leaders raised _. Governments became _ and more _.Some began to reform their _ and _research into human cloning. China and the UK continued to _ evidence of medical aid that cloning could provide.三、检测与反馈 (通过课堂活动完成) （10m） Action 1: True or false. Action 2: Put the statements in right order to show the procedure of cloning a cat. 1. an egg cell without nucleus2. an embryo3. The nucleus from my loved cat and the egg cell from a friendly cat are joined using electricity.4. a somatic cell5. the nucleus taken out of the somatic cellA friendly cat an egg cell My loved cat A cloned cat carrier 四、拓展与升华 (课堂完成) (10m)Fill in the chart using the information from the reading passage. Advantages of cloningDisadvantages of cloning五、评价（课堂完成）The things I can do EvaluationI know what cloning is.54321I know where cloning is used.54321I know how Dolly the sheep was produces.54321I know advantages and disadvantages about cloning.54321I can understand all the new words in this unit.54321I am active in group activities.54321I have my own opinion about cloning.54321六、课后作业1. Multiple choices (5m)1. Dolly the sheep _.A. looked exactly like the sheep that provides the eggB. was the exact copy of the sheep that provides the nucleusC. looked like the sheep that gave birth to itD. had the characteristics of all these sheep2. Which of the following is not an advantage of cloning?A. Cloning can be used for medical purposes.B. Large quantities of food can be produced by cloning.C. Cloning can help keep animals from becoming extinct.D. Famous persons who have passed away can be cloned.3. From the last paragraph we can infer that _. A. cloning will come to an end because of the objections B. cloned human beings will be produced in the near future C. many countries will use cloning in a wise way D. all the research into human beings will be forbidden4. It can be inferred from the passage that a cloned animal _.A. usually lives as long as the original oneB. usually lives longer than the original oneC. usually dies earlier than the original oneD. is usually as healthy as the original one5. The main idea of the text is _ . A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal clonin