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Unit 2 Cloning （Module 8）Period 1 Reading: Cloning: Where is it leading usClass ： Name ： __________ Group ： No ：______ Learning Objectives:1. Learn the useful new words and expressions.2. Read the passage and learn some information about cloning. Learning Key Points:1. Grasp the important words and expressions in the reading material.2. Learn the text and master the major uses of cloning and the success and problem of cloning Dolly the sheep. Learning Difficult Points:1. Improve the reading ability.2. Learn the reading skills: scanning and skimming.Learning Procedures:I. 【Pre-class homework 】 A. Warming upThere are two kinds of clones, a natural clone and a man-made clone. Do you know what is a natural clone? And what is a man-made clone?A natural clone is one that ______________________________________________________ Man-made clone is one that ____________________________________________________B. Pre-readingBackground reading:Scottish scientists at Roslyn Institute created the much-celebrated sheep "Dolly", aroused worldwide interest and concern because of its scientific and ethical implications. She was the first mammal to be cloned from adult DNA taken from an adult cell. Previously, animals had only been cloned using embryo(胚胎) cells which already have the potential to become a complete embryo in its own right. The big breakthrough with Dolly was to make a clone from an ordinary, adult cell − in this case from a female goat’s udder.Questions:1. How does Dolly differ from other sheep?She was ______________ by humans while the others were born naturally. So, Dolly was a ______________ sheep. 2. Should we clone a human?II. 【While-class 】 Step1. Lead-inStep2. Group discussion Step3．Consolidation 1. Reading____________________________________________________________________________________________________A. 做《朗声》p23. ⅣB. Read the text again and fill in the blanks.Cloning is a way of making an 1._________ (exactly) copy of another animal or plant. It has two major uses .2. ________, gardeners use it to earn profits. Secondly, it is valuable for research on new plant species and 3.________ medical research on animals. Although cloning mammals is difficult 4.__________ (undertake), the determination and patience of the scientists 5._______ (pay) off in 1996. The fact 6._______ she seemed to develop normally was very 7._____________(encourage). But she had half of the 8.________ (long ) of the original sheep, 9._________ arose scientists’concern. Up to now, cloning is still 10. ___________ (controversy).Step4．PresentationStep5．SummaryIII.【Post-class】Key:【Pre-class homework】A. Warming up:A natural clone is one that occurs in a natural form of cloning without human help.Man-made clone is one that is produced through human intervention(介入) .B. Pre-readingQuestions:1. She was cloned by humans while the others were born naturally. So, Dolly was a cloned sheep.2.In my opinion, I do not agree, for it may cause many moral problems.【While-class】1.exact2. Firstly,3. For4. to undertake. 5, paid 6,that 7. encouraging 8. length9, which 10, controversial____________________________________________________________________________________________________Period 2 Language points in Reading 1Class ： Name ： __________ Group ： No ：______ Learning Objectives:1.Learn and grasp the important useful new words and expressions.2. Learn the important useful sentences and patterns.3. Make sentences after the useful expressions. Learning Key Points:Grasp the usages of such important new words and expressions. Learning Difficult Points:Understand some difficult and long sentences.Learning Procedures:Ⅰ.【Pre-class homework 】 A. Phrases:1. 与……不同 11. 对……产生影响 2．一项难以承担的任务 12. 媒体 3．得到回报 13. 变得有争议的 4．一方面……另一方面…… 14. 打开眼界5. 令人感到不安的消息 15. 邪恶头目 6．沮丧，不愉快 16. 道德问题7. 适合于 17. 变得谨慎的8. 无法控制的命运 18. 收集证据9. 改进 19. 赞成 10. 一阵强烈的反对 20. 反对 B. Sentences(尽量用同位语从句翻译下列句子):1. 采纳新规则的建议是主席提出来的。
选修8 Unit 2 Cloning-ReadingCLONING: WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants 1. gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance 2. (produce) from the same original egg. The fact is 3. these are both examples of natural clones.Cloning has two major uses. Firstly, gardeners use it all the time to produce 3. ___________ (commence) quantities of plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task 4. ___________ (undertake). Many attempts to clone mammals failed. But at last the 5. ___________ (determine) and patience of the scientists paid 6. in 1996 with a ___________ (突破)- the cloning of Dolly the sheep. The procedure works like this: On the one hand, the whole 7. (science) world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very 8. (encourage). Then came the disturbing news that Dolly 9. (become) seriously ill. Cloning scientists 10. (cast) down to find that Dolly's illnesses were more appropriate 11. a much older animal. Altogether Dolly lived six and a half years, half the 12. (long) of the life of the original sheep. 13. (sad) the same arbitrary fate affected other species, such as cloned mice. The questions that 14. (concern) all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it 15. (solve) if corrections were made in their research procedure?"On the other hand, Dolly's appearance raised a storm of 16. (object) and had a great impact on the media and public imagination. It became controversial. It suddenly opened everybody's eyes to 17. possibility of using cloning to cure serious illnesses and even 18. (produce) human beings.Although at present human egg cells and embryos 19. (need) for cloning research are difficult to (获得), newspapers wrote of evil leaders hoping to clone themselves to ________ _________ ___________ (实现他们的野心). Religious leaders also raised (道德的) questions. Governments became nervous and more (保守的). Some began to reform their legal systems and 20. (forbid) research into human cloning, but other countries like China and the UK, continued to ___________ ___________ (积累证据) of the abundant medical aid that cloning could provide. However, scientists still wonder 21. ____________ cloning will help or harm us and where it is leading us.THE RETURN OF THE DINOSAURS?The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The 1. (popular) of films such as Jurassic Park, 2. which a scientist clones several kinds of extinct dinosaurs, proves how the idea 3. (strike) a mixture of fear and excitement 4. ________ people's hearts. But in fact we are a long way 5. being able to clone extinct animals. Scientists are still experimenting 6. cloning mammals. This is because the cloning of mammals is still a new science and its story only began seriously in the 1950s as this list shows:1950s cloning of frogs 1996 first clone of a mammal: Dolly the sheep 1970s research using the embryos of mice 2000 cow gave birth to a bison1979 work on embryos of sheep and mice 2001 China's first cloned twin calves 1981 first experimental clones of mice 2002 first cloned cats1983 first experimental clones of cows 2005 first cloned dog________ ________ _______ _______ (不时) people suggest that extinct animals like dinosaurs, can 7. (possible) be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or 8. _____________ (suit). There are many reasons.◎The (最初的) requirement is that you need perfect DNA (which gives information for how cells are to grow).◎All efforts of cloning an animal will be ______ _______ (徒劳) if there is not enough diversity in the group 9. (overcome) illnesses. Diversity in a group means 10. (have) animals with their genes arranged in different ways. The advantage is that 11. there is a new illness some of these animals may die, but others will survive and pass 12. the ability 13. (resist) that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would 14. (leave) to continue the species. ◎It would be unfair to clone any extinct animals if they were to live in a zoo. A suitable habitat would be needed for them to lead a natural life.15. (base) on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000years ago. So the chance of dinosaurs ever returning to the earth is (mere) a dream.选修8 Unit 2 Cloning-ReadingCLONING: WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants 1. when gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance 2. are produced (produce) from the same original egg. The fact is 3. that these are both examples of natural clones.Cloning has two major uses. Firstly, gardeners use it all the time to produce 3. commercial (commence) quantities of plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task 4. to undertake (undertake). Many attempts to clone mammals failed. But at last the 5.determination (determine) and patience of the scientists paid 6. off in 1996 with a breakthrough (突破)- the cloning of Dolly the sheep. The procedure works like this: On the one hand, the whole 7. scientific (science) world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very 8. encouraging (encourage). Then came the disturbing news that Dolly 9. had become (become) seriously ill. Cloning scientists 10. were cast (cast) down to find that Dolly's illnesses were more appropriate 11. to a much older animal. Altogether Dolly lived six and a half years, half the 12. length (long) of the life of the original sheep. 13. Sadly (sad) the same arbitrary fate affected other species, such as cloned mice. The questions that 14. concerned (concern) all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it 15. be solved (solve) if corrections were made in their research procedure?"On the other hand, Dolly's appearance raised a storm of 16. objections (object) and had a great impact on the media and public imagination. It became controversial. It suddenly opened everybody's eyes to 17. the possibility of using cloning to cure serious illnesses and even 18. to produce (produce) human beings.Although at present human egg cells and embryos 19. needed (need) for cloning research are difficult to obtain (获得), newspapers wrote of evil leaders hoping to clone themselves to attain their ambitions (实现他们的野心). Religious leaders also raised moral (道德的) questions. Governments became nervous and more conservative (保守的). Some began to reform their legal systems and 20. forbade (forbid) research into human cloning, but other countries like China and the UK, continued to accumulate evidence (积累证据) of the abundant medical aid that cloning could provide. However, scientists still wonder 21. whether cloning will help or harm us and where it is leading us.THE RETURN OF THE DINOSAURS?The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The 1. popularity (popular) of films such as Jurassic Park, 2. in which a scientist clones several kinds of extinct dinosaurs, proves how the idea 3. struck (strike) a mixture of fear and excitement 4. into people's hearts. But in fact we are a long way 5. from being able to clone extinct animals. Scientists are still experimenting 6. with cloning mammals. This is because the cloning of mammals is still a new science and its story only began seriously in the 1950s as this list shows:1950s cloning of frogs 1996 first clone of a mammal: Dolly the sheep 1970s research using the embryos of mice 2000 cow gave birth to a bison1979 work on embryos of sheep and mice 2001 China's first cloned twin calves 1981 first experimental clones of mice 2002 first cloned cats1983 first experimental clones of cows 2005 first cloned dogFrom time to time (不时) people suggest that extinct animals like dinosaurs, can 7. possibly (possible) be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or 8.unsuitable (suit). There are many reasons.◎The initial (最初的) requirement is that you need perfect DNA (which gives information for how cells are to grow).◎All efforts of cloning an animal will be in vain (徒劳) if there is not enough diversity in the group 9. to overcome (overcome) illnesses. Diversity in a group means 10. having (have) animals with their genes arranged in different ways. The advantage is that 11. if there is a new illness some of these animals may die, but others will survive and pass 12. on the ability 13. to resist (resist) that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would 14. be left (leave) to continue the species.◎It would be unfair to clone any extinct animals if they were to live in a zoo. Asuitable habitat would be needed for them to lead a natural life.15. Based (base) on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000 years ago. So the chance of dinosaurs ever returning to the earth is merely (mere) a dream.。
English learning Plan of Senior 2（导学案）The wish words of teacher's（教师寄语）：Relax! Be patient and enjoy yourself. Learning foreign languages should be fun. (放松点！要有耐性，并让自己快乐！学习外语应该是乐趣无穷的。
）㈠Teaching aims(学习目标)1.Knowledge aims（知识目标）⑴To learn about cloning by reading.⑵.To master and understand some structures and complex sentences.2.Ability aims（技能目标）⑴. Read passages by using different reading skills (skimming﹑scanning﹑careful reading) .⑵. Express own opinions about cloning in form of debate..3.Emotion aims（情感目标）⑴Be interested in science technology (cloning).⑵. Learn to team up with others.㈡Special and difficult Points(学习重难点)1. Learn different reading skills(Skimming, scanning﹠careful reading).2 Learn more about cloning.3. Describe cloning in your own words.㈢The procedure of learning （学习过程）Before class (课前预习胸有成竹)【自主预习】㈠学法指导⑴通读本篇文章，查字典，猜生词，记短语，勾出文中复合句以及难句。
英语选修8人教版新课标Unit 2阅读教案Unit 2 Cloning: Where isit leading us?中国书法艺术说课教案今天我要说课的题目是中国书法艺术，下面我将从教材分析、教学方法、教学过程、课堂评价四个方面对这堂课进行设计。
一、教材分析：本节课讲的是中国书法艺术主要是为了提高学生对书法基础知识的掌握，让学生开始对书法的入门学习有一定了解。
书法作为中国特有的一门线条艺术，在书写中与笔、墨、纸、砚相得益彰，是中国人民勤劳智慧的结晶，是举世公认的艺术奇葩。
早在5000年以前的甲骨文就初露端倪，书法从文字产生到形成文字的书写体系，几经变革创造了多种体式的书写艺术。
1、教学目标：使学生了解书法的发展史概况和特点及书法的总体情况，通过分析代表作品，获得如何欣赏书法作品的知识，并能作简单的书法练习。
2、教学重点与难点：（一）教学重点了解中国书法的基础知识，掌握其基本特点，进行大量的书法练习。
（二）教学难点：如何感受、认识书法作品中的线条美、结构美、气韵美。
3、教具准备：粉笔，钢笔，书写纸等。
4、课时：一课时二、教学方法：要让学生在教学过程中有所收获，并达到一定的教学目标，在本节课的教学中，我将采用欣赏法、讲授法、练习法来设计本节课。
（1）欣赏法：通过幻灯片让学生欣赏大量优秀的书法作品，使学生对书法产生浓厚的兴趣。
（2）讲授法：讲解书法文字的发展简史，和形式特征，让学生对书法作进一步的了解和认识，通过对书法理论的了解，更深刻的认识书法，从而为以后的书法练习作重要铺垫！（3）练习法：为了使学生充分了解、认识书法名家名作的书法功底和技巧，请学生进行局部临摹练习。
三、教学过程：（一）组织教学让学生准备好上课用的工具，如钢笔，书与纸等;做好上课准备，以便在以下的教学过程中有一个良好的学习气氛。
（二）引入新课，通过对上节课所学知识的总结，让学生认识到学习书法的意义和重要性！（三）讲授新课1、在讲授新课之前，通过大量幻灯片让学生欣赏一些优秀的书法作品，使学生对书法产生浓厚的兴趣。
Unit2 CloningReading: CLONING: WHERE IS IT LEADING US? 教学设计一、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。
”阅读”（Reading）部分提供的材料CLONING: WHERE IS IT LEADING US?是一篇介绍克隆技术的说明文, 具体介绍了植物与动物克隆的区别，多利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。
从话题内容上分析，Warming Up 与Reading相一致，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）”。
二、学情分析我所带的两个班级的学生英语基础一般，平时较少阅读科学题材的文章, 知识面相对狭窄，阅读理解这篇文章还是有一定难度。
但学生的好奇心和学习接受能力比较强，可以布置学生课前上网或去图书馆找出一些有关克隆的资料，并与多媒体相结合简单介绍克隆及克隆技术的一些知识，让学生有了一定的知识准备以利于很好的理解课文。
三、设计理念及教学目标这节课的主要目的是培养学生跳读和细读的阅读技巧，使学生学会准确分析阅读问题，懂得从文章中找到关键句子摄取必要的信息，找出正确的答案。
我运用多媒体和学生搜索材料主动参与学习相结合，设计了表格、问答题、判断题和信息整理题。
这不仅提高学生的阅读技巧，也教会学生怎样处理不同的阅读问题。
四.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，ac cumulate，cast down，object to，the media，in favor ofb. 重点句子It is a way of….The fact is that….The question that concerned all scientists were: ….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 1 Lead-in（3分钟）Show three cartoon pictures about cloning to arise students’interest s, then raise the question:1. What is cloning?2. Do you want to be cloned or not? why?通过展示图片和提问，激发学生对克隆技术的兴趣和好奇心，启发学生预测课文的内容，以便通过阅读验证自己的推测。
高中英语学习资料madeofjingetieji选修 8 Unit 2Cloning基操Ⅰ.拼写1． It is(合情理的 ) to assume that he knew beforehand that this would happen.2． 20 years ago, because of the(保守的 ) views of her parents, she got married to a man against her will.3． When the football match was over, he lay on the playground,不能够 ) tomove.4． He was cast down when the(程序 ) he had used to produce a mammal clone ended in failure.5． I didn ’ t know anything about any of the books so my choice was quite(任意的 ). 6． Mr Zhang,who had completed40 years of teaching,(退休 ) from teaching last month because of ill health.7． The old lady gave away an impressive collection of oil paintings she had( 累 ) to the national art gallery.8． In Britain education is(的 ) for all children between the ages of 5 and 16. 9．Despite the fact that he’ s fed up with too many rules and(章 ), he has to obey all of them.10.Her books have gained in(受迎 ) with teenagers in recent years.11.She couldn’ t(忍住 ) laughing when she saw the young man.12.To say that this law will not affect our profits is to talk(胡 ).13.The doctor explained that this was a(复的 ) procedure that he should considercarefully.14.It is reported that scientists have achieved a major(打破 ) in the treatment of thistype of cancer.15.The old painting was damaged in the flood and had to be(修复 ).16.I knocked at the door loudly in the(徒的 ) hope that someone might answer.17.After she’ d got over (=overcome) her(开始的 ) shyness, she became very friendly.18.The film was highly praised, but was not a(商的 ) success.19.The President returned to work(不久 ) after his operation.20.Your report is good and I’ ve made only a few small(更正 ) to it.Ⅱ.用方框内所短的合适形式填空pay off;cast ⋯ down;be bound to;strike ⋯ into one’ s heart;from time to time;have a great impact on;in poor condition;in favour of;bring⋯ back to life;owe⋯ to21.If you take a job as a journalist, it goes without saying ( 不言而 ) that __________________you ’ ll have to work at weekends.22. The good news, however, ___________ fear of the enemies andthey immediately fled in all directions.23.I _______________________ all my debts by the end of next year.24.He felt a bit ______________________ when he failed his final physics exam.25.He turned down a university appointment _______________________ a political career.26.There _____________________ be changes when the new system is introduced next year.27.The leaning tower with a history of hundreds of years is _________________________ and badlyneeds repairing.28.People in the flood-stricken areas said that they ________________ a great deal _____________the PLA soldiers for their rescue work.29.The computer, as is known to all, has __________________________ modern life.30. Don ’ t bother yourself about cloning my pet cat. I won’ t expect to ________ it.Ⅲ. 完成句子31.Cloning scientists ___________________________________ that Dolly ’s illnesses were moreappropriate to a much older animal. (cast)研究克隆的科学家很沮地，多莉得的病更简单生在年老的羊身上。
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。
