高中英语 Module 5 Cloning The Fifth Period Writing教案 外研版选修6

1、四川省宣汉中学2014高中英语 Module 5 Cloning The Fifth Period Writing教案 外研版选修6Teaching goals 教学目标1. Target language目标语言a. 重点词汇ban, common, encourage, societyb. 重点句子Most countries think it is beneficial and encourage it, and cloning has become common in these societies.2. Ability goals能力目标Enable the students to

2、write a discursive paragraph about cloning.3. Learning ability goals 学能目标Help the students learn how to write about cloning. Teaching important & difficult points 教学重难点How to write a discursive paragraph about cloning.Teaching methods 教学方法Discussion; task-based activities. Teaching aids 教具准备A comput

3、er and a projector. Teaching procedures & ways教学过程与方式Step I Revision and Lead-in Task 1: Ask the students to read the passage in Activity 1 and then answer the questions.T: Nowadays most countries are against cloning especially human cloning. But would it be banned forever? What would happen if clon

4、ing became common in societies? Now read the short passage and answer the questions followed. Sample answers: 1. Cloning is not allowed everywhere in the world. There are a few countries that ban it. Most countries encourage it. 2. Cloning has become common in many societies because cloning is thoug

5、ht to be beneficial. Sample dialogues:1.S1: I would not be able to accept the situation. I feel strongly against it. Just think: a child grows up knowing her mother is her sister, her grandmother is her mother. Her father is her brother-in-law. What a mess it would be!S2: Me too. Just imagine when y

6、ou walk in the street, you see many identical faces and cant tell one from another. What a terrible thing it would be!S1: What the most terrifying thing is these identical people are all doing and thinking in the same way. And you cant tell who are younger and who are elder. 2.S1: I wouldnt feel tha

7、t clones were very different from me. Cloned human beings are identical in every way. S2: I dont agree with you. I would feel that clones were very different from me. Because cloned people may have severe medical problems and cant live longer. 3.S1: I wouldnt want to know them or be their friend. Be

8、cause they may be just the same as me. S2: I would want to know them or be their friend. Maybe they can help me go through many difficulties or help me do more things.4.S1: I would feel so. Because many attempts at animal cloning produced disfigured monsters. The same story may go with human cloning

9、. For example, they may become old soon. They may die soon. They may be abnormal. S2: I wouldnt. Just imagine when one day, there are so many identical faces like you! They just say, do or think as you do. How can you feel better than them?5.S1: I dont want to clone myself. If so, there would be no

10、“I”.S2: I dont agree with you. I would want to clone myself. I would make my clone do things for me. 6.S1: If I had the power, I would change the situation. I would ban all the cloning which is against natural law. S2: If I had the power, I would not change the situation. But I would order the scien

11、tists to clone many geniuses to work for me. 7.S1: I would do it. Because I can reduce my pain in emotion. S2: I would not do it. Because I dont want my loved one to take such a risk. Step II Writing Task 1: Ask the students to make notes of arguments for and against cloning.T: Since the first cloni

12、ng was made public, it has become a subject of much discussion. Those who support cloning see quite definite benefits in carrying out research in the area. What are some of the more common arguments? Now make some notes of arguments.Sample notes: arguments for cloning: 1) cloning will be beneficial

13、to humans. For example, if a couple cant have children, cloning could help give them a child; 2) we could use cloning to cure illnesses arguments against cloning: 1) health risks from mutation of genes; 2) emotional risks; 3) risk of abuse of the technology; 4) against nature; 5) cloned animals get

14、ill and die quite young; 6) people are afraid of that scientists will create thousands of copies of the same person; 7) cloning is dangerous because scientists may create monsters by mistakeTask 2: Ask the students to first decide whether they are for or against cloning and try to think of some argu

15、ments of their own and then write a paragraph. Sample version 1:If I had the power, I would ban cloning for several reasons. Firstly, it is against nature and dangerous. Any living things have life and death recycle periods, which promote the evolution of life. The cloning technique is extremely ris

16、ky right now. An abnormal baby would be a nightmare that comes true. And people are worried about the possibility that the genetic material used from the adult will continue to age so that the genes in a newborn baby clone could be 30 years old or more on the day of birth. Also monsters may be creat

17、ed by mistake. Secondly, people are afraid of that scientists will create thousands of copies of the same person. There are powerful leaders in every generation who will seek to abuse this technology for their own purposes. Going ahead with cloning technology makes this far more likely. What would h

18、appen if Hitler was cloned? That would mean more severe disasters and destruction upon human civilization. Thirdly, cloning will result in high emotional risks. Just think: a child grows up knowing her mother is her sister, her grandmother is her mother. Her father is her brother-in-law. Every time

19、her mother looks at her she is seeing herself growing up. The family environment and relationship will be totally different. What kind of pressures will the child feel?All in all, I would determinedly ban cloning if I had the power. Sample version 2:If I had the power, I would encourage cloning. The

20、re are several reasons. Firstly, cloning will be beneficial to humans. For example, if a couple cant have children, cloning could help give them a child. Secondly, we could use cloning to cure illnesses. For example, if there is something wrong with some part of a human body, we could clone a health

21、y one to replace it. For another, if a child is seriously ill or disabled, we could clone another one. Thirdly, clone technology could be used in other ways. For example, we can save the endangered animals by cloning. In a word, cloning technology has a promising future. I would encourage it if I ha

22、d enough power. Task 3: Ask the students to do Exercises 18 and 19 in the WORKBOOK. And then check the answers. Task 4: Ask the students to do Exercise 20. T: Suppose you are a scientist who works on cloning human cells. Now work in pairs and discuss the questions. Make some notes about the question

23、s. A sample dialogue:S1: Hi, Bob. Havent seen you for ages. How are things going?S2: Not bad. S1: What are you busy with these days?S2: Im very interested in genetic engineering and working with Professor Smith on cloning human cells. S1: Why do you choose to do this?S2: Its of great importance for

24、us human beings. You know, there are many unsolved medical problems, such as cancer, AIDS, etc. If we make it possible, these problems would be readily solved. S1: How long have you done it?S2: Weve been working on it for nearly seven years.S1: Incredible! What a dull work you are doing! Would you c

25、ontinue your research?S2: Of course. We are now making experiments on some fresh dead bodies and have really made some progress. I hope to see my cloned heart beating briskly. I hope one day we can clone every part of a human being. S1: I heard cloning is sometimes very dangerous. For example, you m

26、ight create a monster or something abnormal. S2: Thats what we fear might happen. So we must do hundreds of times of experiments to prove one thing. S1: I think you are doing a great job. S2: Thank you. But still many people cant understand this. They believe cloning is against nature and dangerous.

27、 People fear the technology might be abused. We receive ten or more angry letters from these people every day. S1: You should stick it out. And I do hope you can succeed one day. S2: Thanks. Sample notes: 1. why chose the job: of great importance, readily solved2. how long: nearly seven years3. what hope might happen: clone every part of a human being, cloned heart beating briskly4. what fear might happen: create a monster or something abnormal5. what people say: against nature and dangerous, abusedTask 5: Ask t