人教高中英语选修八 Unit2-Cloning教学设计
高中英语_新人教版选修八 Unit 2 Cloning教学设计学情分析教材分析课后反思
Book8 Unit2 CloningReading内容：教学设计及反思_设计人：___Book8 Unit2 CloningPeriod 1 Reading设计人:教学整体设计思路在英语教学中“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--- 掌握段落大意（略读）---课文内容填空（精读）---重点知识点与句型---讨论---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21、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。
学习流程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 accumulate bother regulation resist unable argument reasonable obtaincast 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。
人教版选修8Unit2CloningP2教学设计
Unit 2 CloningPart 1 Teaching Design第一部分教课方案Period 2 A sample lesson plan for Learning about Language (Revise the Appositive <words||，phrases and clauses>) IntroductionIn this period students will be first helped by the teacher to discover and learn to use some useful words and collocations|| ， and then to discover and learn to use the following useful structures: the appositive <words||， phrases and clauses>. The following steps of teaching may be taken: warming up by reading aloud to the tape the text CLONING： WHERE IS IT LEADING US?；learning about appositive； building up on your word power ； discovering useful words and collocations ； discovering and distinguishing ； closing down by talking about cloning.ObjectivesTo help students revise the Appositive <words|| ， phrases and clauses>)To help students discover and learn to use some useful words and collocationsTo help students discover and learn to use some useful structuresProcedures1.Warming up by reading aloud to the tape the text CLONING： WHERE IS IT LEADING US?2.Learning about appositiveWhat is an Appositive?An appositive is a noun|| ， noun phrase||， or noun clause which follows a noun or pronoun and renames or describes the noun or pronoun. A simple appositive is an epithet like Alexanderthe Great. Appositives are often set off by commas.Example: We visited the home of Harriet Beecher Stowe|| ， the author of Uncle Tom's Cabin. (The underlined portion is the appositive.)Appositive PhrasesAn appositive phrase is a type of noun phrase that follows the noun or pronoun it modifies andamplifies or restricts its meaning.Our monitor||， a careful reader and outspoken critic ||， will examine the article before it is handed to the headmaster. [The italicized phrase is an appositive.]Appositive phrases are similar to relative clauses; to avoid wordiness|| ， relative clauses can often be reduced to appositive phrases.3. Building up on your word powerTo build up on your word power you are to make sentences with the collocations from the text: CLONING ： WHERE IS IT L EADING US? You may try to include as many uses of the Appositive <words|| ， phrases and clauses> as possible.1.This is a way of learning English|| ， the most popular language in the word.2.People in the future will make an exact copy of themselves.3.We may grow human beings in a laboratory in the near future.4.They are identical in sex and appearance.5.This mysterious thing is produced from coals.6.The natural clones of these plants have two major uses||， one for eating||， one forreproduction.7.At all the time|| ， producing commercial quantities of concrete things is difficult.8.We are going on with our research on the cloning of animals.9.The determination and patience of students will be rewarded with a breakthrough in cloning.10.Following the progress of English development we shall come to a conclusion that thisworld language is becoming simpler in sentence structure.4. Discovering useful words and collocations.A collocation is two or more words that often go together. These combinations just sound "right"to native English speakers|| ， who use them all the time.Now you may go to page 13. Finish the four words and collocations exercises in groups of four.5. Discovering and distinguishingTo find out and write down all the examples of the Appositive <words||，phrases and clauses>) you are to read the text Cloning: Where is it leading us?The fact that she seemed to develop normally was very encouraging ．Then came the disturbing news that Dolly had become seriously ill.Altogether Dolly lived for six years||， half the length of the life of the original sheep.Some more examples of the AppositiveMr. Smith|| ， our new teacher||， is very kind to us.Yesterday I met Tom||， a friend of my brother's.He himself told me that his brother John is a world-famous doctor.Yesterday I talked to my English teacher|| ， Mr. James.We Chinese people are brave and hardworking.He is interested in sports||， especially ball games.There are differences between appositive clauses and attributive clauses.●同位语从句只是出此刻belief||， conclusion||， doubt||， fact||， hope||， idea||， knowledge||，law||， message||， news||， notion||， order||， proof||， rumor||， sign||， suggestion||， theory||，thought 等抽象名词的后边 ||，用于进一步说明或解说该名词的内容 ||。
选修八Unit2Cloning教学设计
Unit2. CloningReading 教学设计-雷翊Teaching contents,Doing reading comprehension about the textTeaching aims,Knowledge aims，Help the students understand the text very well.Ability aims，Improve the students’ reading ability.Emotional aims，1. stimulate students’ interest in cloning.2. Develop students’ spirit of cooperation and teamworkTeaching important points,how to describe cloning.Teaching difficult points,Help the students analyze the writing techniques of the article.Teaching methods,1. task-based teaching and learning2. debate methodTeaching procedures and ways,Step1: Warming upShow some pictures of A strawberry plant 、Twins、cloning cattles、Identical dogs on the screen. Get students to look at the pictures and discuss:Which is natural clone? Which is man-made clone? and then explain how they differ.(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，这就为进一步的学习做好了铺垫。
新课标人教版选修八Unit 2 Cloning教案
Unit 2 CtoningThe First Period Warming up and Reading Teaching goals1.Enable the students to describe cloning: What is theadvantages of cloning?2.Help the students analyze the writing techniques of thearticle.Teaching procedures Step I Warming up一：You can imagine how rapidly the modem science and technology develop. I think most of you must know something about space traveling, submarine exploration, robot, maglev train, gene engineering etc. But in recent years, a hot topic, cloning is often mentioned, especially when the cloning Dolly the sheep appeared. You may have first heard of cloning when Dolly the Sheep showed up on the scene in 1997. Cloning technologies have been around for much longer than Dolly, though.First things first, what is cloning and a clone? The dictionary says cloning is the technique of producing a genetically identical duplicate of an organism. A clone is said to be all descendants derived asexually from a single individual, as by cuttings, bulbs, by fission, by mitosis, or by parthenogenesis reproduction. In fact, in our daily life, this happens often. For example, gardeners take cuttings from growing plants to make new ones. You often see that your mother picks a small branch from a growing plant to make a new one. If she likes this kind of flowers, she can do cloning. Cloning also happens in animals or human beings when twins identical in sex and appearance are produced from thesame original egg.Discussion 1. Do you want to be cloned or not? Why?2.Can you tell me the advantages of cloning?3.And what is the disadvantage?二:Look at picturesLook at the pictures and discuss which ones are natural clones and which ones are man 一made. Then explain how they differ.Step II Pre-reading(Before class, ask the students to search for some information about this topic. ) Now show your questions on the screen, and then let them discuss with each other.Now please work in pairs and discuss about cloning. Then list the questions you want to find out. Share your list with your partner.Questions about cloning:1.What is a clone?2.How is a clone produced?3.What benefits can humans gain from cloning?4.What problems may arise when humans are cloned?5.Should we clone human?6.Could cloning replace sex as the means of creating new human life?7.Could a parent clone a child who is dying of a terminal illness?Suggested answers:1.It is a way of making an exact copy of another animal and plant.2.This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and gown in a laboratory. Italso happens in animals when twins identical in sex and appearance are produced from the same original egg.3.It can help cure disease and can help couples who have no baby to bear a new baby.4.There may be more bad people like Hitler.5.In my opinion, I do not agree, for it may cause many moral problems.6.No. Because cloned human has the same quality as the real human, natural born baby's quality is higher than his parents.7.No. The cloned baby also has the disease.Step III Fast- readingHave you not the answers of your questions? Now please skim the passage fast to obtain a general understanding of the whole passage into several parts and find out the main idea of each part.Show the following.Para. 1 Cloning is a way of making an exact copy of another animal and plant.Para. 2 Cloning has two major uses.Para. 3 The problems of Dolly.Para. 4 The effect of Dolly.Para. 5 It is forbidden to clone human being.Step IV Careful-reading1.Ask the students to read the passage carefully to finish exercise Ion page 12 in the students, book.2.Check the answers.3.Finish exercise2on page 12 in the students' book.4.Check the answers5.Explanationl.)It is a way of making an exact copy of another animal and plant.全句汉语意思:它是一种精确复制另一个动物或植物的方式。
人教英语选修八Unit2Cloning教案2
Unit 2 CloningThe Second Period ListeningTeaching goals1. Target languagea. 词汇和短语cloning, attitude, medicine, organsb. 重点句子I agree with...How would you do...?Do you think...?2. Ability goalsLet the students focus on the different attitude towards cloning technology.3. Learning ability goalsTeach the students how to get the specific information.Teaching important pointsListen to the materials about cloning and choose the correct answers.Teaching difficult pointsWork together with partners and show their own opinions.Teaching methodsListening and cooperative learning.Teaching aidsA tape recorder.Teaching procedures & waysStep I Revision1. Greetings2. RevisionStep Ⅱ Pre-listeningWork in groups to discuss how we should behave towards the human clones.T: Before human clones become part of our life, perhaps we should spend some time thinking about how we should behave towards them. Now, work in groups to discuss the following questions.Show the following.1. How would you treat human clones?2. Do you think they should have legal and political rights, such as getting married or voting?3. Do you think they are separate people or part of the original donor?Sample answers:1. I will treat them as normal people.2. Yes, I think they should have the legal and political rights.3. I think they are separate people.Step Ⅲ ListeningThe students are asked to read fast the questions and multiple answers to find out the listening points first, and then listen to the tape twice to choose the best answer.T: Please open your books at page 54. Before you listen to the tape, please read fast the questions and multiple answers to find out the listening points. Pay more attention to these important points while listening. While listening, you’d better make notes of the listening points.A few minutes later.T: Now, I’ll play the ta pe twice. Please listen carefully and pay more attention to the important points. You may make notes while listening. Notes taking are helpful for you to remember each of the important points. After listening twice, check the answers and explain some difficult listening points if necessary.Step Ⅳ Listening task (P57) (时间不足时改为作业)First, ask the students to read these sentences and then listen to the tape and decide if they are facts or opinions.T: Now turn to page 57, there’re 10 questions. You should for m the habit of going through the questions and the answers to get the important listening points. Yes? And make notes if necessary. OK?Play the recording and then check the answers with the class.Sample answers:Arguments for cloning pets:1. Favorite pets can live forever as clones.2. It is moral to clone pets for their owners.Arguments against cloning pets:1. Many people don’t agree with cloning.2. Some people think that cloning pets is selfish.HomeworkT: Boys and girls, today we have listened to some materials about cloning. I do hope you can listen to the materials again after class so that you can get very familiar with them. Besides, please preview the reading. Now class is over. Goodbye, everyone. Ss: Goodbye, sir / madam.。
人教版高中英语选修8《Unit2Cloning》教案
人教版高中英语选修8《Unit 2 Cloning》教案人教版高中英语选修8《Unit 2 Cloning》教案【一】教学准备教学目标一、语言知识目标初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。
二、阅读技能目标1. 能获取和处理文章中的主要信息。
2. 能够掌握文中出现的重要的语言知识三、学习策略目标掌握速读、略读、猜测词义等阅读策略。
四、情感态度目标让学生认识到克隆的利和弊。
五、文化意识目标了解克隆，正确地利用克隆技术来为人类服务。
教学重难点初步理解、掌握课文中关于克隆的词汇，学习分析课文中的长难句子。
教学过程Step 1 Daily reportOne student comes to the front and gives a report about advantages and disadvantages of science and technology.Step 2 leading-inThe teacher shows some pictures and starts a discussion about cloning.Step 3 SkimmingTask 1: Whats the main idea of the passage? Task 2: Match the main idea with each paragraph Para 1: A. Peoples attitude towards cloning. Para 2: B. The problems of Dolly.Para 3: C. The impact of Dolly.Para 4: D. Two major uses and the procedure of cloning.Para 5: E. The definition(定义)of cloning.Step 4 ScanningTask 1. Look through Para 2 and answer the following questions.(1) What are the two major uses of cloning?(2) Which one is easier, to make plant clones or animal clones?Task 2. Look through Para 3 and fill in the chart. Task 3. Do the following translation and word guessing.(1). Translation:On the other hand, Dollys appearance raised a storm of objections and had a great impact on the media and public imagination.(2). The word controversial in paragraph 4 probably means_________.A. complicatedB. arguableC. importantD. valuableTask4. Do the following Tor F questions based on Paragraph 5.1. People feared some evil leaders might use cloning to reach their goal.2. All the research into cloning will be forbidden.3. Religious leaders are in favor of human cloning.Step 5 Enjoy beautiful sentences1. Cloning plants is straightforward while cloning animals is very complicated.2. At last the determination and patience of the scientists paid off.3. The fact that she seemed to develop normally was very encouraging.Step 6 Question and answerThis part is for students to find if they still have questions. If there is any, they can ask their classmates to help them.Step 7 QuizNote: This part is very challenging. In the picture there are five numbers. Students can choose their lucky number and answer questions. Most of the questions are based on what they have learned in class.Step 8. Test yourselfFill in the blank with proper words.Cloning is a way of _______ (make) an exact copy of another animal or plant. It has two major uses. One is _______ gardeners use it to produce plants. The ______ is that it is valuable for medical research on animals. ________, the process of cloning is difficult ___________ (undertake).The first successful clone, Dolly the sheep, made the whole _________ (science) world follow its progress, though it had ________ problems than the normal sheep. On the other hand, Dollys appearance _______ (raise) a storm of objections and had a great impact ______ the media and public imagination. Different people have different opinions on it. However, scientists still wonder ______ cloning will help or harm us and where it is leading us.Step 9 DebateTopic: Are you for or against cloning?课后小结HomeworkWrite a passage entitled My view on cloning.课后习题评测练习主要有两个。
人教版高二英语选修8_Unit_2_Cloning_全单元教案
Unit 2 CloningThe First Period warming upAims1. Talk about cloning2. Practice expressing and supporting an opinionContentsTask one: Looking and speakingIn pairs, look at the pictures and discuss which ones are natural clones and which ones are man-made. Explain how they differ.A.Dolly the sheepB. A strawberry plantC.TwinsD. Identical dogsTask two: Questions about cloningWhat is a clone?How is a clone produced?What benefits can humans gain from cloning?What problems may arise when humans are cloned?Task three: Free talkIn pairs, discuss what you understand about cloning, then list the questions you want to find out. Share your lists with one another.1. Should we clone human?2. Could cloning replace sex as the means of creating new human life?3. Could a parent clone a child who is dying of a terminal illness?The Second Period ReadingAims:1. Help the Ss to know how to describe cloning and how to catch the details of the text.2. Activate the Ss to show their opinions about the cloning and enable the Ss to write and article on this debate.Contents:Leading in by revision.Task one: Fast readingWhat is a clone?Show the following.1. Cloning means making a copy of an animal or a plant. (F. e xact… another)2. Gardeners can make a lot of money by cloning plants.(T.)3. Cloning animals is as complicated as cloning plants.(F. more than)4. Dolly the sheep was the first successful clone of a mammal. (T.)5. Natural clones happen in animals as well as in plants.(T)Task two: Careful readingRead the text again, try to answer the following questions and find out the main idea of each paragraph .Questions:1. What’s the main idea of the text?2. How many years did the sheep that donated the somatic cell most probably live?3. Why did the Cloning of Dolly the sheep succeed?4. What does the word ‘straightforward’ mean in the second paragraph?5. What is the writer’s attitude toward cloning in this passage?The main idea of each paragraph:Para. 1 Cloning is a way of making an copy of another animal and plant.Para. 2 Cloning has two major uses.Para. 3 The problems of Dolly.Para. 4 The effect of Dolly.Para. 5 It is forbidden to clone human being.Task three: Notes for debating: Should we use cloning?Argument for cloning:Cloning will be beneficial to humansWe could use cloning to cure illnesses.Arguments against cloning:healthy risks form mutation of genesemotional risksagainst naturerisk of abuse of the technologyCloned animals get ill and die quite young;The Third Period Language PointsAims:1. Enable the Ss to grasp the words of cloning.Get the Ss to master some useful expressions.Contents:1. differ v.1) “To be dissimilar or unlike in nature, quality, amount, or form”eg：Ambition differs from greed.2) “To be of a different opinion; disagree”eg：The critic differed with the author on several facts.2. exact adj. “Strictly and completely in accord with fact; not deviating from truth or reality”eg：an exact account; an exact replica; your exact words.3. commercial adj. 1) “Of or relating to commerce” 2) “Engaged in commerce’eg：a commercial loan; a commercial attaché; a commercial trucker.4. straightforward adj. 1) “honest’ 2) “easy to understand”eg: a ~ explanation; written in ~ language; a ~ problem in algebra5. procedure n.1) ‘A manner of proceeding; a way of performing or effecting something’eg：complained to the manager, and by this procedure got the money back.2) “A series of steps taken to accomplish an end”6. undertake v.1) “To take upon oneself; decide or agree to do”eg：undertake a task.2) “To pledge or commit (oneself) to’eg：undertake oneself to care for an elderly relative.7. breakthrough n.1) “An act of overcoming or penetrating an obstacle or restriction.”2) ‘A military offensive that penetrates an enemy's lines of defense’eg: a ~ in cancer research8. disturb v. “break the quiet, calm and peace’eg: She opened the door quietly so as not to disturb the sleeping boy.Don’t ~ the papers on my desk.9. arbitrary adj.1) “Determined by chance, whim, or impulse, and not by necessity, reason”eg：stopped at the first motel we passed, an arbitrary choice; arbitrary division of the group into halves.2) “Based on or subject to individual judgment or preference”eg：The diet imposes overall calorie limits, but daily menus are arbitrary.10. altogether adv.1) “Entirely; completely; utterly”eg：lost the TV picture altogether; an altogether new approach.2) “With all included or counted; all told”eg：There were altogether 20 people at the dinner.11. objection n. “The act of objecting”eg: He has a strong ~ to getting up early.~s to the plan will be listened to sympathetically.12. media n. 媒体eg: The running for president drew the ~’s attention.Now the press is an useful media.13. moral adj.1)“Of or concerned with the judgment of the goodness or badness”eg：moral scrutiny; a moral quandary.2) “Teaching or exhibiting goodness or correctness of character”eg：a moral lesson.14. accumulate v. “To gather or pile up”eg: By buying ten books every month, he soon ~d a library.Dust soon ~s if the room is not swept.15. forbid v.1) “To command (someone) not to do something”eg：I forbid you to go.2) “To command against the doing or use of (something); prohibit”eg：forbid smoking on trains.The Forth period Learning about language and Using languageAims:Let the Ss know more about the cloning.Improve the students’ listening, reading and writing ability.Contents:Task one: gap fillingplete the sentences using suitable words or phrases from the prevision sections.2.Rewrite the sentences using words of similar meaning to replace the underlined words.e the words and phrases below to fill in the passage.Task two: reading and discussing1.Read the passage and answer the questions.2.In pairs, discuss which extinct animals described below (which died out less than 10,000 yearsago) are worth restoring by means of cloning.a. Auroch (1627)b. Dodo bird (1755)c. Great auk (1844)d. Quagga (1883)Task three: listening and writing1.Read the statements before listening. Tick those that you hear.2.Listen to the tape again and then work with a partner to fill in the chart on page 17.3.Whose idea do you agree with according to the listening materials? Get ready to write acomposition. Think about the reasons for your point of view. Use your own ideas as well as those in the text.。
人教英语选修八Unit2Cloning教案1
Unit 2 CloningThe First Period ReadingTeaching goals1. Target languagea. 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 occurred ...2. Ability goalsEnable 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 goalsHelp the students learn how to describe cloning.Teaching important pointsHow to describe cloning.Teaching difficult pointsHelp the students analyze the writing techniques of the article.Teaching methodsSkimming, task-based method and debate method.Teaching aidsA recorder, a projector and some slides.Teaching procedures && waysStep I Lead-inThis topic is difficult for students. So teacher should help the students learn more about it. Do this in the way of asking and answering questions.T: You can imagine how rapidly the modern science and technology develop. I think most of you must know something about space traveling, submarine exploration, robot, maglev train, gene engineering etc. But in recent years, a hot topic, cloning is often mentioned, especially when the cloning Dolly the sheep appeared. You may have first heard of cloning when Dolly the Sheep showed up on the scene in 1997. Cloning technologies have been around for much longer than Dolly, though. First thing first, what is cloning and a clone? The dictionary says cloning is the technique of producing a genetically identical duplicate of an organism. A clone is said to be all descendants derived asexually from a single individual, as by cuttings, bulbs, by fission, by mitosis, or by parthenogenesis reproduction. It sounds very different andcomplicated to us. In fact, I mean, in our daily life, this happens often. For example, gardeners take cuttings from growing plants to make new ones. You often see that your mother picks a small branch from a growing plant to make a new one. If she likes this kind of flowers, she can do cloning. Cloning also happens in animals or human beings when twins identical in sex and appearance are produced from the same original egg. The fact is that cloning plants is straightforward but the cloning of animals is more complicated. The possibility of human cloning, raised when Scottish scientists at Roslin Institute created the much-celebrated sheep “Dolly”, aroused worldwide interest and concern because of its scientific and ethical implications. You can give your questions if you are interested in this topic. I am here today one of the scientists who work in this field. I am ready to answer any of your questions.S: Now we know what is cloning. Are there different types of cloning?T: When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism. A basic understanding of the different types of cloning is key to taking an informed stance on current public policy issues and making the best possible personal decisions. The following three types of cloning technologies will be discussed: (1) recombinant DNA technology or DNA cloning, (2) reproductive cloning, and (3) therapeutic cloning.S: Was Dolly created by what cloning? And why was Dolly so important?T: Reproductive cloning is a technology used to generate an animal that has the same nuclear DNA as another currently or previously existing animal. Dolly was created by reproductive cloning technology. She was the first mammal to be cloned from adult DNA taken from an adult cell. Previously, animals had only been cloned using embryo 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.S: Have you seen Jurassic Park? In this feature film, scientists use DNA preserved for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and fiercer than expected. Could we really clone dinosaurs?T: In theory? Yes. What would you need to do this? A well-preserved source of DNA from the extinct dinosaur, and a closely related species, currently living, that could serve as a surrogate mother. In reality? Probably not. It’s not likely that dinosaur DNA could survive undamaged for such a long time. However, scientists have tried to clone species that became extinct more recently, using DNA from well-preserved tissue samples.More questions about cloning are given in the appendix. The information above is for reference only. Or you can choose several students and ask them to act out a short play whose main topic is as follows:An old man who was dying left all his fortune to his own son. But he did not know that his son was cloned. So two same young men both claimed that they were the old man’s son. They quarreled and fought with each other; at last they went to the judge.The judge let them check DNA. The result was that their DNA was the same. Now even the judge did not know what to do.In this part the teacher can give the students some advice to act out. According to this play teacher ask the students several questions:1. Do you want to be cloned or not? Why?2. If you are the judge what will you do?3. Can you tell me the advantages of cloning?4. And what is the disadvantage?DiscussionIn this part the students will discuss the relationship between the development of technology and social customs.T: As the technology develops day by day, it has a more and more important influence on the whole society. Technology affects social customs and ethics, sometimes technology may go against the conventional thinking, then comes the problem that whether we should stop the development of research or change the ethics.S1: As technology develops in almost every field, a lot of our original customs and ethics changed, either because they are out of time or not so scientific. For example millions of years ago human ate meat of animals without heating them. Later people used fire and no longer ate raw meat and they also used fire to scare dangerous animals.S2: I think we could not stop the development of technology, for it may develop in the way which is acceptable by social customs.…Look at picturesT: 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!Step Ⅱ Pre-readingBefore class, ask the students to search for some information about this topic. Now show your questions on the screen, and then let them discuss with each other.T: Now please work in pairs and discuss about cloning. Then list the questions you want to find out. Share your list with your partner.Ss: Yes, sir / madam.Questions about cloning:1. What is a clone?2. How is a clone produced?3. What benefits can humans gain from cloning?4. What problems may arise when humans are cloned?5. Should we clone human?6. Could cloning replace sex as the means of creating new human life?7. Could a parent clone a child who is dying of a terminal illness?After a few minutes.T: Do you have other questions? V olunteer!S: I have! What is the writer’s o pinion?T: Good job! I think many of you have questions, now let us read the article with the questions.Suggest answers:1. It is a way of making an exact copy of another animal and plant.2. This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and gown in a laboratory. It also happens in animals when twins identical in sex and appearance are produced from the same original egg.3. It can help cure disease and can help couples who have no baby to bear a new baby.4. There may be more bad people like Hitler.5. In my opinion, I do not agree, for it may cause many moral problems.6. No. Because cloned human has the same quality as the real human, natural born baby’s quality is hig her than his parents.7. No. The cloned baby also has the disease.Step Ⅲ While-readingGet the students to comprehend the passage quickly and accurately and meanwhile help the students form a good habit of reading.T: Have you got the answers of your questions? Now please skim the passage fast to obtain a general understanding of the whole passage. While reading, divide the whole passage into several parts and find out the main idea of each part.Show the following.Para. 1 Cloning is a way of making an exact copy of another animal and plant. Para. 2 Cloning has two major uses.Para. 3 The problems of Dolly.Para. 4 The effect of Dolly.Para. 5 It is forbidden to clone human being.Step Ⅳ Post-readingAsk the students to read the passage again to finish three tasks.T: Now let’s listen to the tape. While listening, pay more attention to the correct pronunciation and tone. Then read the text by yourselves to get the answers to the three tasks. You can work in groups.T: First, what are the problems or dangers of cloning?S: Let me have a try! First, the cloned animals have the same illness of the old animals and the same goes with the other species. Second, the cloned animals have short life and can cause moral questions.T: You are right! And what are the advantages of cloning?S: I know! Firstly, gardeners use it all the time to produce commercial quantities of plants.Secondly, it is valuable for research on new plant species and for medical research on animals. Thirdly, it suddenly opens everyone’s eyes to the possibility of using cloning to cure serious illnesses, and even producing human beings.T: What is the writer’s opinion? What do you think is the writer’s point of view in t his reading passage? Is it in favour of cloning or against it?S1: I think the writer is in favour of it, because there are many advantages of cloning. It can help people solve many problems in our daily life.S2: I think the writer doesn’t agree with it, because if the cloning technology can be used in an evil way, it can cause much trouble to our society.T: The next question: What is your opinion of cloning? Give the reasons.S1: As a coin has two sides, everything has two aspects. First, 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 troubles: such as moral questions.S2: My view on cloning and nuclear transfer is that it is ethical. So actually I find no reason to clone presently. I have this opinion currently, because scientists are unable to successfully clone using nuclear transfer as of today.S3: I also have a problem with the possible effects of using nuclear transfer on a large scale. This is because I fear that cloning could greatly reduce genetic diversity. I believe if we were to interfere with the genetic diversity of an entire population we would undoubtedly fail.S4: As you can see I believe cloning using nuclear transfer should not be used on humans for any reason. I think if we were to use cloning it should be closely monitored as to what dangers are involved in having copies of people. I also think this technology should not be used until success.S5: I agree that we should develop cloning. I’m not afraid of cloning Hitlers or excited to clone Einsteins. I would say the time and the environment produced Hitler, not his DNA. So you do not need DNA from Hitler to produce a Hitler. In fact, there are Nazis already present. We should make use of cloning to benefit future generations. You can imagine that how happy the people are if they can recover from the serious illness or get back the son who has just lost his life in an accident by cloning.T: Good job! Yes, if we our human beings use the scientific technology properly it can bring many advantages to us!S: Why did Dolly’s appearance raise a storm of objections and have a great impact on the media and public imagination?T: Because nothing really prepared the world for the 1997 announcement that a group of Scottish scientists had created a cloned sheep named Dolly. Many folks believe that within the next decade, we will hear a more shocking announcement of the first cloned human. Scientists in South Korea have already created human embryonic stem cells through cloning. Until now, the idea of human cloning has only been possible through movie magic, but the natural progression of science is making human cloninga true possibility. We’ve cloned sheep, mice and cows, so why not humans? Some countries have set up laws banning cloning, but it is still legal in many countries. Imagine using a piece of your great-grandmother’s DNA to create a clone of he r. In a sense, you could be the parent of your great-grandmother. This opens the door to many ethical problems, but it’s a door that could soon be opened.S: So what happens next?T: Whatever the reasons, the new cloning technologies have sparked many ethical debates among scientists, politicians and the general public. Several governments have considered or enacted legislation to slow down, limit or ban cloning experiments outright. It is clear that cloning will be a part of our lives in the future, but the course of this technology has yet to be determined. Cloning could cause birth defects, but it’s not going to change society. In the absence of any legislation or regulation, cloning attempts will quietly continue. Eventually, cloning will succeed (if it hasn’t happened already), and humankind will have taken another step down the road of biological engineering. You young students are the future of the world. You should study hard today, and you will be able to face this difficult problem and know how to deal with it. ExplanationHomeworkAsk the students to do the following.1. Complete the exercises on page 13.2. Recite the key sentences in the text.3. What is Clone? You might not believe it, but there are human clones among us right now.Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends? Imagine if you could really do that. Where would you start?。
人教版选修8Unit 2 CloningP3 教学设计
Unit 2 CloningPart 1 Teaching Design第一部分教学设计Period 3 A sample lesson plan for Using Language(THE RETURN OF THE DINOSAURS)IntroductionLanguage is learned to be used in and for communication. So in this period we shall have the students read, listen, write and speak in English, making use of the focused words, collocations, structures and topic ideas covered in this unit. The teacher may take the following steps in teaching: warming up by reading aloud the text on page 11 to the tape；Reading for forms；discussing about extinct animals；listening and talking about cloning and closing by looking and saying.ObjectivesTo help students read the passage THE RETURN OF THE DINOSAURSTo help students to use the language by reading, listening, speaking and writingProcedures1. Warming up by reading aloud the text on page 11 to the tape.Why read aloud? Because reading aloud:•Is great fun, and it benefits our growth as readers and learners.•Nurtures our love of both the written and spoken word.•Gives us a chance to rediscover favorite stories and find new ones.•Helps us develop important language skills that will help us learn to read on our own.2. Reading for formsRead the text THE RETURN OF THE DINOSAURS on page 15: cut/ the sentence into thought groups, blacken the predicates, darken the connectives and underline all the useful collocations. 3. Discussing about extinct animalsSome animals have gone for ever. Some animals are endangered. Tigers in Asia are endangered. Now in groups of four make a list of endangered animals and have a discussion of them.Endangered tigerThe tiger lives in the jungles and canebrakes of Asia. Its body markings provide excellent camouflage in long grass.This large carnivore usually hunts at night, spending the greater part of the daylight hours resting in shaded areas to escape the heat. It eats a variety of other creatures, from frogs and turtles, to cattle, monkeys, deer, buffalo, and even the occasional young elephant.Tigers are the largest existing members of the Felidae and are, on average, larger than lions, ranging in weight up to 267 kg.4. Listening and talking about cloningCloning is something which will change the direction of the world development. Now let’s listen to more cloning.Is cloning an organism the same as cloning a gene?You've heard about cloning animals --- sheep, mice, even house pets --- in the news. From time to time, you may have also heard about researchers cloning, or identifying, genes that are responsible for various medical conditions or traits.What is the difference?Cloning an animal, or any other organism, refers to making an exact genetic copy of that organism. The techniques used to clone organisms are described on this page.Cloning a gene means isolating an exact copy of a single gene from the entire genome of an organism. Usually this involves copying the DNA sequence of that gene into a smaller, more accessible piece of DNA, such as a plasmid. This makes it easier to study the function of the individual gene in the laboratory.Now you may work in pairs to put this listening material into a dialogue.5. Closing by looking and sayingLook at the photos and say something about cloning. What is it? How it done?。
人教版高中英语选修8-Unit-2-教案
Unit 2 Cloning Ｉ．单元教学目标Ⅱ.目标语言III. 教材分析与教材重组1. 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。
1.1 Warming Up 提供了四幅有关Dolly the sheep(多莉羊) A strawberry plant(草莓植物) Twins（双胞胎婴儿）Identical dogs(克隆狗)的图片，让学生用已有的知识和经验讨论对克隆技术的看法与观点。
1.2 Listening是关于人类克隆的听力材料，难度中等。
1.3 Speaking 根据材料，四人小组合作，要求把自己对克隆婴儿的态度和感觉用相关的语言表达出来。
语言要得体，锻炼语段表达能力。
1.4 Pre-reading是Reading的热身活动。
它要求采用与同学讨论交流的方式谈论有关克隆的相关知识。
1.5 Reading是一篇介绍克隆技术的说明文。
1.6 Comprehending第一题所给出的表格让学生根据课文内容列举克隆技术的优缺点。
第二题让学生根据所拥有的知识来评价作者的观点。
第三题要求学生用自己的语言阐述对克隆技术的观点并给出理由。
1.7 Learning about Language 分词汇和语法两部分，其中Discovering useful words and expressions 是根据语境在运用中掌握词汇。
Discovering useful structures 是通过阅读和补全句子来练习。
1.8 Using Language中的Reading，Discussing and writing要求学生先读, 然后完成四个任务型的作业。
即 1. 讨论并回答三个问题。
回答这些问题，2. 讨论几种已经灭绝的动物，并且讨论哪种动物应该被恢复到这个世界上，并且给出理由。
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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。
Step 2 Warming up（1分钟）Show the picture of Dolly the sheep(多莉羊)on the screen. Get studen ts to look at the picture and discuss:How does Dolly differ from other sheep?进一步营造宽松和活跃的课堂气氛，充分调动学生学习的积极性，即或学生的思维，培养他们发散思维能力。
这就为进一步的学习做足了铺垫。
Step 3 Reading（共26分钟）Get the students to comprehend the passage quickly and accurately and meanwhile help the students form a good habit of readingTask1.Skimming（6分钟）Ask students to skim the passage and get the main idea of each paragraph..Para 1 The definition of cloning.Para 2 The two major uses and the procedure of cloning.Para 3 The problem of Dolly.Para 4 The impact of cloning in society.Para 5 People’s reaction to cloning. .Task2. Detailed reading（18分钟）Ask the students to read each paragraph of the text carefully and answer the following questions. (由于文章较长信息点较多，在这里采取分组合作模式，目的是让学生在短时间内快速捉和了解文章关键信息, 把全班学生分成小组，每个小组有三位成员和一位组长，小组共同完成以下的任务，组长整理归纳组员的信息并陈述结果。
)Para 1 The definition of cloning.True or false:1. Cloning is a new topic.2. When a gardener takes cuttings from growing plants to make new ones, we say the new ones are natural cloning.3. Cloning happens both in plants and in animals.Para 2 The two major uses and the procedure of cloning.1.The word “straightforward”means ______.A. uncomplicatedB. honestC. rankD. difficult2.The cloning of Dolly the sheep succeeded because____.A.its easier to clone a sheep than otherB. the scientists were determined and worked hard with patienceC. the scientists were rewarded and got lots of moneyD. many other attempts to clone mammals failed3. The lamb is the clone of the cell from sheep B because_____. .A. it provides the egg cellB. it gives birth to the lambC. it provides the nucleusD. it is a female sheepPara 3 The problem of Dolly.At first, the fact that Dolly seemed to developed ___________ was __________.Then, came the disturbing news that Dolly became _________.Altogether Dolly lived__________________, half the length of the life of ______________. Para 4 The impact of cloning in society.1. On the other hand, Dolly’s appearance__________________________and ____________________the media and public imagination.2. The word “controversial” in paragraph 4 probably means____________.A. complicatedB. arguableC. important授课中始终围绕读，以listening,skimming, careful reading和compre hending等多种方法渐进式导入学生去理解课文和解决课标阅读任务。
Detailed reading过程中，课堂采用循序渐进式阅读教学促使学生积极配合，使学生对文章中的一些细节知识有好的把握，对作者的写作态度有深层次的理解。
Step4.Retelling the text（7分钟）Cloning is a way of _______ an exact copy of another animal or plant. Cl oning has two ______ uses. Firstly, gardeners use it to produce plants. Secondl y, it is ________ for medical research on animals. Cloning plants is straightfor ward but the cloning of animals is more__________. The procedure is diffic ult to _________. In 2019, scientists succeeded in _______Dolly the sheep. Th en came the disturbing news that Dolly was ill. __________ Dolly lived for si x years and a half, Dolly’s appearance raised a storm of _________. Governm ent became nervous and many _________ research into human cloning. Scienti sts still _______ whether cloning will help or harm us and where it is leading us.对课文进行及时概括能够帮助学生全面理解整篇文章大意，在阅读的的基础上进行语言输出，使学生学会用英语对克隆进行描述，从而达到学以致用的效果，提高学生学习英语的积极性。