高中英语 Unit 3教案 牛津版必修5.doc

Unit 3 Science versus nature.单元教学目标技能目标Skill goalsRead a newspaper article about cloning and an article about people and the natural worldListen to a discussion about growth hormones Discuss your ideas about cloning and conduct an interview about GM foodWrite a formal letter about GM foodTake part in a debate.目标语言功能句型Conducting a discussionWhat do you think?What are your thoughts on this topic?Do you feel the same about ?Is that your opinion too?Another way of looking at it is But what about ?On the other hand, Have you thought about ?Writing a formal letter With reference to Thank you for your In reply to Further to your I am writing in response to/to inform you I would be grateful if you could I hope you would I look forward to hearing from you soon.If you require any further information 词汇1. 四会词汇versus, announcement, clone, mankind, interfere, real-life, praise, breakthrough, intention, anxiety, adopt, deliver, medical, succeed, benefit, totally, immoral, consequence, comment, correct, strict, field, figure, behave, cautious, judgment, involve, cost, manager, conduct, majority, advocate, conclude, urge, seek, perform, resistant, limit, endlessly, overdevelop, construct, favor, argue, spell, rate, developed, developing, acceptable, productive, tourism, seriously, race, sale, surely, advance, profession, perform, agriculture, planet, disaster, decade2. 认读词汇embryo, tissue, organ, cell, Scottish, desperate, genetically, stem, goat, superhuman, seminar, concept, negative, beast, alternative, definitely, relation, laboratory, queen, survey, practice, GM, nutrition, revolution, victim, biscuit, gene, pest, acre, rainforest, dam3. 短语on the one hand, point out, interfere with, in general, push ahead with, end up, for sale, use up, put in prison, next door, figure out, the other day, on ones part, in favor of, point of view, turn out语法Verb-ed formVerb-ed phrasesVerb-ing and verb-ed used as adjectives重点句子1. Science is developing so fast that it is beyond our imagination.2. What effects do you think human cloning might have?3. In general the scientists were praised for their wonderful scientific breakthrough while cloning human embryos is illegal in many countries some scientist are already pushing ahead with research so as to deliver a cloned human body. 4. We could produce a monster or even a superhuman race that could one-day end up replacing us.5. I think the scientific advances mentioned in your article are interesting.6. She lay trapped under the building for 3days 7. She left the restaurant, disappointed.8. Not everything that is best for nature is good for people.9. Many developed nations are now concerned about saving nature rather than developing or destroying it.10. The developing and developed countries of the world need to work together toloves, without the environment around then suffering.11. Most of the time it turns out that humans are not really profiting when they damage the environment. 教材分析与教材重组1. 教材分析本单元围绕“科学和自然”这个论题展开，从“克隆技术”、“转基因食品”等方面将二者进行对照，并对人们的不同看法进行了描述，在此基础上让学生学会如何通过一些信息片断写一封正式的书信，以及如何进行采访、辩论等。旨在通过教学使学生能够清楚地表达自己的看法，并使自己的观点更加有说服力。同时，也对学生进行必要的情感教育，使其对前沿的高尖端技术有一个正确的认识，明白任何事物都有其自身的发展规律，遵循事物自身的发展规律是我们做任何事情的前提。1-1 Welcome to the unit利用六幅克隆的小动物图片激发学生对本单元话题的兴趣，接着用三个问题引发学生的讨论，使学生在看图片的同时思考克隆这一高新技术，并能表达自己对克隆的看法，为后面内容的学习奠定基础。1-2 Reading 一文讲述了人们对克隆技术的一些不同观点。该部分共设计了六个活动：A部分要求学生快速阅读文章，并快速地找出三个问题的答案，培养学生的快速阅读能力；C1部分要求学生仔细阅读课文及两封来信，并判断所给6个句子是否正确；C2部分要求学生从课文及来信中找出人们赞成或反对克隆的原因，考察学生对课文细节的理解把握能力；D部分要求学生在课文中找到所列的8个词条，猜测其含义然后将这些词条与其英文释意相搭配，考查学生根据上下猜词的能力；E部分要求学生利用所给词汇完成王林写给报社编辑关于克隆的书信，巩固课文中所学的词汇；F部分要求学生讨论人类是否应该被克隆的问题，应用所学的语言表达自己的观点。1-3 Word power包括 Prefixes and suffixes和 Organs of the body 两部分。Prefixes and suffix介绍了部分前缀和后缀的含义，并通过一位环境科学家的一段话使学生在语境中进一步掌握词缀的用法；Organs of the body要求学生掌握有关人体器官的一些词汇，用一篇短文将学校的各个部分与人体各个部分器官进行类比，学生可以进一步理解人体各部分的作用。1-4 Grammar and usage分为 Verb-ed form 和Verb-ed phrases及Verb-ing and verb-ed used as adjectives三个部分。学习动词的-ed形式在句中所作的成分和意义，以及用作形容词时与verb-ing形式的区别。本部分设计了四个练习：第一个练习要求学生阅读一篇介绍一位科学工作者如何工作的文章并用verb-ed填空；第二个练习要求学生阅读两小段短文并用verb-ed 改写句子；第三个练习同样是用verb-ed改写句子；第四个练习是用verb-ing 或verb-ed完成一段对话，巩固二者的区别。1-5 Task (Writing a formed letter) 包括三个技能训练和三个相应的步骤，要求学生了解并掌握正式信件的格式，并学会如何正确地表达自己的思想。1-6 Project (Having a debate ) 要求学生在阅读一篇人与自然的文章基础上形成自己的观点及辩论的提纲，以小组活动的形式组织一次以“人与自然”为主题的辩论会。1-7 Self-assessment学生将对照单元学习项目，按照五个等级，进行自我评价，为下一步学习制定计划。2. 教材重组2-1 利用Welcome to the unit作为导入，将Reading中的F与其整合在一起，上一节口语课。2-2 将Reading及其前后的练习部分整合为一节阅读课。2-3 将Word power及A、B部分整合为一节词汇课。2-4 将Grammar and usage及Workbook中的语法练习整合为一节语法课。2-5 将Task中的Skills building 1、Step 1及Workbook中的Listening整合为一节听说课。2-6 将Task中Skills building 2及Step 2整合为另一节口语课。2-7 将Task中Skills building 3和Step 3整合为一节写作课。2-8 将Project (Having a debate)设计为一节综合技能课。2-9 将Workbook中的Reading及Writing设计为另一节综合技能课。3. 课型设计与课时分配1st Period Speaking (I) 2nd Period Reading 3rd Period Vocabulary 4th Period Grammar5th Period Listening and Speaking 6th Period Speaking (II) 7th Period Writing 8th Period Integrating skills (I)9th Period Integrating skills (II). 分课时教案The First Period Speaking(I)Teaching goals 教学目标1. Target language目标语言a. 重点词汇和短语clone，mammal，illegal，have an effect on，beyond ones imagination b. 重点句子Science is developing so fast that it is beyond our imagination.Do you think it would be a good idea to clone humans?What effects do you think human cloning might have?2. Ability goals能力目标Enable the students to know something about cloning, and give their own opinions about cloning.3. Learning ability goals学能目标Help the students learn how to describe the advantages and disadvantages of human cloning with the target language. Teaching important points教学重点Talk about cloning and human cloning. Teaching difficult points 教学难点How to describe the advantages and disadvantages of human cloning. Teaching methods教学方法Discussion and speaking. Teaching aids 教具准备A projector.Teaching procedures and ways教学过程与方式Step I Lead-inWalk into the classroom with a sad face. T: Good morning, class.Ss: Good morning, Miss Wang. T: How are you today?S: Fine. But you look so upset, what happened?T: My pet cat died of some unknown disease this morning, which makes me so sad. You know I love her so much that I nearly cant live without her. However, nothing can take her place in my mind, what can I do?S: Why dont you have one that is exactly the same as yours by cloning? I think its the only way to solve your problem. T：Whats clone?S1: A clone is a copy.S2: Cloning is one of the most popular technologies in the 20th century. T：What other technologies do we have in recent years?S1: Maybe the most influential technology is computer science, which has contributed a lot to our society in many fields. Now, for most of us, we cant live without computers.S2: Every coin has two sides, while we benefit a lot from computer technology, it does do harm to us in some degree. For example, many people get computer disease, and some students give up schooling because of being addicted to computer games.S3: Air-conditioner is widely used today. We can spend both winter and summer without worrying about being too cold or too hot because we can control the temperature ourselves. But as a result, our environment is polluted at the same time; our planet is becoming warmer and warmer, which partly results from our using of air-conditioners.T: You are right. Just now you mentioned cloning. Now lets see some pictures.Show the pictures on the textbook on the screen.Step II Welcome to the unitT: Here are six pictures. They are all clones. Maybe all of you are familiar with Dolly, arent you?Ss: Yeah.T: Where and when was Dolly born? Is she still alive? Who can give us some information about Dolly?S: Dolly the sheep was born on February 24, 1997 in Edinburgh Scotland. She was cloned from a cell of another sheep. Dolly died in February, 2003, after developing a progressive lung disease.T: Do you know other cloned animals?S: A cloned frog first appeared in the world in 1952. In 1962, a tadpole was successfully cloned. Whats more, it was announced that human embryo was successfully cloned in a company in America on November 25th, 2001.T: Now suppose youve grasped cloning technology, what would you like to clone? Why? S1: Id like to clone dinosaurs, which disappeared several billion years ago. Because I want to reappear the prosperity in dinosaurs times and let our future generation have the opportunity to see the giant animals.S2: I dont like to clone animals in ancient times because I think it means nothing. I want to clone water. As we all know, water is very important to our planet and even the whole universe. However, with the development of our society, the amount of water cannot satisfy our needs. Besides, in some areas in the world, people even havent enough water to drink.S3: I agree with S2 that water is of great importance to us. But in my opinion, food is more important. If we can successfully clone food, we can save people in South Africa who are suffering from hunger; it will be of great benefit to the world.S4: Its a fact that our living environment is becoming worse and worse, so its our responsibility to protect the environment around us. Therefore, I would like to clone the tropic rainforest in Amazon. I will place it in Sahara to purify the environment and Im sure that would be wonderful.S5: The human organ would be my choice. Every year, a large number of people in the world die from lack of human organs to replace their sick ones. And my grandfather is an example. S6: I would prefer to clone a luxurious villa, a most perfect car and a lot of money to enjoy myself! To live a luxurious life as a millionaire has been my dream for a long time.T: All of you have good wishes! Science is developing so fast that it is even beyond our imagination. Cloning is one of the more advanced technologies! Everything on earth is unique, but cloning makes it possible to have a double. Do you know why were different from each other?Ss: .T: Its because of genes. Genes are the instructions for life. They make each individual plant or animal different and unique. Do you think it would be a good idea to clone humans someday?S: I dont think it would be a good idea to clone humans because the earth we are living on is already overpopulated, and cloning humans would make the situation worse. S: I dont quite agree. I think it would be fun to clone humans. If you have a cloned sister or brother, you wont feel lonely anymore. Whats more, for those couples who cant have a baby, cloning would help them have their own babies. Step III DiscussionDeal with the questions in activity F.T: Now work in pairs and discuss the questions in activity F.Several minutes later, ask some pairs to demonstrate their conversations. A sample conversation: A: If we use cloning technology, there wont be any idiot in the world and, as a result the human society will be improved.B: I dont agree. If persons like Hitler (希特勒) were cloned they would bring troubles to our society. A: Using cloned organs, we can save the lives that are dying of incurable diseases, such as cancer and AIDS.B: But there will be population problem. You know our earth is overpopulated now. If we clone humans, there will be more and more people and the earth will run out of resources. I think human being is against nature law. If we stick to the opinion that human cloning is right, well be punished by nature in the future. A: Police would have difficulty in arresting the criminals because of clones. So I think governments should pass laws to make human cloning illegal.B: I agree. Our moral principles will be destroyed. What if someone has two fathers? Or two wives?A: Even if the parents who have lost their children would feel happy when they see their loved ones, the clones behavior and thoughts cant be like their daughters, sons. Maybe they will regret.B: I just want to see one “I” in the world, I cant imagine what I would feel if there are two “I”! How horrible! T: Almost all of you are for the view that human being shouldnt be cloned. I cant agree more. We have our principles while nature has its own ones.We cant attempt to change something in the nature, or well be punished! So we should try our best to build a society in harmony with nature instead of against nature. Step IV Homework Preview the text on P42.Search the Internet for more information about cloning.The Second Period ReadingTeaching goals教学目标1. Target language目标语言a. 重点词汇和短语announcement, embryo, tissue, organ, interfere, real-life, cell, normal, praise, breakthrough, intention, anxiety, adopt, desperate, genetically, deliver, medical, succeed, benefit, totally, immoral, consequence, comment, advance, negative, correct, strict, on the one hand, print out, in general, push ahead with, end up, for sale, use up, put in place, come across b. 重点句子A recent announcement by scientists that they have successfully cloned the first human emerge has caused much debate and has shocked many people around the world. In general the scientists were praised for their wonderful scientific breakthrough while cloning human embryos is illegal in many countries some scientist are already pushing ahead with research so as to deliver a cloned human body. We could produce a monster or even a superhuman race that could one day end up replacing us.2. Ability goals能力目标Enable the students to learn different opinions on cloning. 3. Learning ability goals学能目标Help the students to learn how to understand scientific terms and analyze the passage according to the reading strategy. Teaching important points教学重点How to understand the writers point of view. Teaching difficult points教学难点How to understand the scientific terms. Teaching methods教学方法Listening, skimming, scanning and discussion.Teaching aids教具准备A tape recorder, a projector and a computer. Teaching procedures and ways教学过程与方式Step I RevisionCheck the homework: Ask some students to share their information about cloning found on the Internet.Step II Lead-inT: Good. I think you really did a lot of work after class. Thank you very much. Today I would like to introduce a famous guy to you first. Look at the screen please.Show a picture of Frankenstein monster on the screen.T: Have you ever seen this monster? S: Yes, its called Frankenstein monster.T: How much do you know about it?S: Frankenstein is the character of a science fiction written by Shelleys wife, Mary Shelley, who was named the ancestor of science fiction. S: In this fiction, professor Frankenstein created a monster, but the monster at last killed the professor and his family because of its anger as he gave life to it while the society couldnt accept it. Its really a scientific tragedy.T: Excellent. And now if we call somebody Frankenstein monster, we mean that he is hurt by something he has created. Frankenstein created a life and then was punished to death. Do you think there is something similar between Frankenstein and the scientists today who are concentrating on human cloning? Will they be punished some day? . Now were going to read a passage, “The perfect copy”.Step III Pre-readingIn this procedure, students will do fast reading and answer the questions in activity A. T: Now you please read the article and letters fast and answer the questions in activityA. Ill give you only 2 minutes. After 2 minutes, ask students to report their answers.Suggested answer:1. The article gives both the anti- and pro-cloning point of view.2. Its name was Dolly.3. Obviously she is anti-cloning.T: Sometimes it can be very difficult to judge the writers point of view. So how can you tell that the writer gives both an anti- and pro-cloning point of view? Is there any clues?S: For example, in the first paragraph, the use of “on the one hand” and “on the other hand”, they introduce two opposite opinions. More clues:Para 2: . However, in general the scientists were praised for .Para 3: . However, some people consider that .Para 4: Even though ., it is good news .Step IV SkimmingIn this procedure, encourage the students to develop their predictive skill by reading the beginning and the ending to guess as much as they can about the passage and understand the meaning of the text as a whole.T: Articles about science is a little difficult to understand, dont you think so?Ss: Yes. T: Its just because there are some scientific terms in it. You can understand the article very well only if you understand those terms. To understand an article about science, you should get a general idea first according to the first and last paragraph. Now please read these two paragraphs and answer my questions on the screen. Show the following questions on the screen.1. Whats the first paragraph about?2. Whats the last paragraph about?3. What is the passage about?T: Look at the first question. Whats the first paragraph about? S1: In the first paragraph, we know that scientists success in cloning caused much debate.S2: Two different opinions are mentioned briefly in this paragraph.T: Good. Then what about the last paragraph?S3: Chinas achievements on cloning are mentioned.T: Can you guess what the whole passage is about now?S4: I think it will tell different opinions about cloning.S5: The passage will tell us the achievements on cloning in different countries all over the world.T: You all did very well. Lets scan the passage to check your predictions, OK?Step V ScanningWhile scanning,