1、2014-2015学年高中英语同步教案（3）：Unit 2 Cloning人教新课标选修8） The third Period Language pointsTeaching procedures:Step1:revision: check their homeworkand dictationStep2:explanationReading 1 witness n.目击者;见证人C(+of/to) I was a witness to the argument.我是那场争论的见证人。 证词U She was punished for giving false witness.她因作伪证受到惩
2、处。 证据,证明C(+to) vt.目击I witnessed the traffic accident.我目睹了那次交通事故。 作.的证人;连署 The two servants witnessed Mr. Smiths will.两个仆人在史密斯先生的遗嘱上签名作证。 是.的发生地点 The year 1849 witnessed a great war in Hungary.一八四九年匈牙利发生了一场大战。 vi.作证,证明Several people witnessed against the accused.几个人作了不利于被告的证明。2 star n.C (电影、体育等的)明星,杰
3、出人物 His wish to become a football star has come true.他想当足球明星的愿望实现了。 vt. 使成明星,由.主演 Yesterday we saw a film starring Charlie Chaplin.昨天我们看了一部查理卓别林主演的电影。 vi.当明星,主演She has starred in some thirty films.她主演过大约三十部影片。 表现出色He didnt star at that job.那份工作他干得并不出色。 3 cast vt.投,掷,抛,扔,撒 He cast a stone into the ri
4、ver.他向河中投了一块石子。 投射(光、影、视线等)(+at/on) I just cast a glance at the headlines.我只是看了看标题。 选派.扮演角色,为(戏剧、角色)选派演员(+as/in) Ann was cast as the wife. 安妮被选派扮演妻子的角色。4.take down 拿下, 取下;记录下来;拆掉 take . for .以为(某人或某物)是 take in 装入, 收容, 接待;缩短; 改小; 收(帆);领会, 理解; 口欺骗 take over接收管, 任 take to爱, 喜欢;嗜好, 沉迷于, 养成.的习惯5 desperat
5、e a.情急拼命的,铤而走险的 A desperate man will stop at nothing to get what he wants. 一个亡命之徒为了达到自己的目的什么事都做得出来。 危急的;绝望的 He was desperate when he lost all his money.当他丢了所有的钱时,他绝望了。 极度渴望的 (+for)+to-v He was desperate for work to provide for a large family. 他渴望有个工作,挣钱供养子女众多的家。6.stage vt. 把.搬上舞台,上演 The city was sta
6、ging Hamlet.该城市正在上演哈姆雷特。 筹划;举行,发动They decided to stage a general strike.他们决定举行总罢工。 vi.(剧本)适于上演The script staged pretty well.这剧本舞台演出效果甚好。7. leave vt.离开(某处)(+for) Mr. Smith left the room at two oclock.史密斯先生两点离开房间。 离开(某人)的身边;遗弃,离弃Her husband has left her.她的丈夫把她遗弃了。 辞去(工作等);脱离(组织等) Mary left school last
7、 year and she is working in a shop now. 玛丽去年退了学,现正在一家商店工作。 遗忘;丢下I left my keys behind.我忘了带钥匙了。 听任,使处于某种状态He left the windows open.他让窗子开着。 留给He left me a few books.他留给我几本书。 把.交给;委托(+with/to)+v-ingO2 You can leave your case with me.你可以把箱子交给我。 剩下I felt I had little energy left.我感到我一点劲也没有了。 vi.离去;动身(+fo
8、r)We will leave for London next week.我们下周动身去伦敦。8.be drunk with 醉心于、，对、痴迷，陶醉于、 He is drunk with success Ex: translate:不要沉迷于网络。_T 9.exercise control over 对、实施控制，控制 We should think of a way to exercise control over our expenses.10.condemn vt.判刑，处刑；声讨；谴责 Most people are willing to condemn violence of an
9、y sort as evil. 任何人都愿意把任何暴力行为视为恶行加以谴责。 Ex: The judge _ him for fraud. A. denounced B. condemned C. charged D. accusedStep:3summary: you should remember the usages.then make sencences as more as possibleStep4:homework1. read the text again and again 2,recite the words 3,remember the key points 4,fini
10、sh the exercises. Part 2 Language study Teaching methods教学方法Cooperative learning.Teaching aids教具准备A computer & a projector.Teaching procedures & ways教学过程与方式Step Lead-in Last class we have talked about clone, we all know it is not a dream. Now everyone, if I give you a chance to clone what will you r
11、estore then?S: Edison, dinosaurs, Japanese wolf, Einstein.T: Do you want to clone Hitler?S: No. Hitler is a dangerous person.T: If some terrorists master this clone method, they may bring disasters. All your choices are excellent. Today we will learn another passage about cloning, from which we will
12、 know whether we can bring dinosaurs back to life. Ask the students to go through some facts of cloning.T: From these facts we know human beings have achieved great progress in cloning. Now read the text carefully to get the answers for these questions: what animals have people cloned?S: Frogs, mice
13、, cows, sheep, bisons, cats, and dogs.T: Good job. Answer the question: What are the common characteristics of these animals?Ss: They are nowadays animals.T: Yeah, I think you must have seen the film Jurassic Park, in which a scientist clones several different kinds of extinct dinosaurs. Can we real
14、ly clone dinosaurs now?Let the students turn to page 15 and then read the text quickly. Several minutes later.S: We cannot clone dinosaurs, because its difficult for us to get its DNA.T: Good job. Its only a dream. Dinosaurs disappeared 65,000,000 years ago. So the chance of dinosaurs ever returning
15、 to the earth is merely a dream.Step Read and answer (P16)To answer these three questions, teacher can give the students some examples as explanation, for example, Question 1.T: Now think about this question: if in the world there is only one sheep and human beings want to clone more. Some days late
16、r a Dolly appears, then many more. But one day all sheep get the same deadly disease. Now please think about what the results are. S: Maybe they would all die. T: Why? S: Because all sheep have the same arrangement of genes. T: Right. Now can you answer Question 1? Why shouldnt you clone an extinct
17、animal unless there is enough diversity in the group?S: It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses.T: Why is it wrong to clone an extinct animal if it would have to live in a zoo?S: If the cloned animals have to live in the zoo, it is
18、unfair to them. They need freedom.T. Why cant you clone the DNA of animals that have been extinct longer than 10,000 years?S: Dinosaurs disappeared 65,000,000 yeas ago. So the chance of dinosaurs returning to the earth is merely a dream.Step Discussion (Question 2)This is a speaking task. Ask the st
19、udents to have a discussion in groups, organize their words properly, and give vivid description of the chosen animals.T: Now look at the table on page 16, discuss in pairs which extinct animals described are worth restoring by means of cloning. Choose one animal and use the information to help you
20、argue why this animal should be restored to the earth. Give the students six minutes to discuss.S1: I think Great Auk is a wonder. Because it is a very large bird that cannot fly. The useful thing about it is that its feather doesnt absorb water. I think if we wear clothes made of its feather, we wi
21、ll not worry about rain.S2: I agree with you. But I am happy to accept Dodo bird because it is friendly and not harmful. I like gentle animals. It can also lay large eggs and its meat is tasty, but I dont think I will eat its meat.T: From your answers I think these animals are all useful and they al
22、l should be restored to the earth. At the same time, we should try our best to protect them. Do you agree with me?S: Yes.Step Writing a report (P17)Deal with Questions three and four. Divide the whole class into four groups. Then they can have a competition. T: Now everyone, imagine all of you are o
23、wners of your chosen animal. Now work together, and give us a vivid description of your pet, then I will decide which one is the best to be resorted to the earth.Several minutes later, the students give performances. At the same time, list some major points on the blackboard.T: Well done everyone. I
24、t is really hard for me to choose, let us vote OK?Step TALKING (P55)Ask the students to talk about the questions with the teachers help.T: Look at the questions on page 55. Do you know how to show your opinion? You can discuss the following questions with your partner and use these expressions on pa
25、ge 55.1. How would you feel about having a clone of yourself in the family?2. Are you ready to accept the clone as a member of your family or as your friend?3. What problems did you have growing up and how can you help him / her avoid them.S1: If my parents decided to have a clone made of me, I will
26、 feel very sad.S2: I will never accept the clone as a member of my family or as my friend.S3: I will accept, I will tell her / him how to solve the problems in her / his life. A sample discussion:S1: Morning. You look so sad today. Whats the matter with you?S2: My parents wanted to have another baby
27、. In fact, they cannot have a second child. So they decide to have a clone made of me. Im very worried about this. I would never accept a clone sister in my family.S1: I dont understand why you dont accept your clone sister. In fact, she is another “you”. Cant you accept “yourself”?S2: Just think if
28、 I had a clone sister, I would meet many problems. Sometimes I cant help thinking she will share my beautiful clothes, delicious food and the other things.S1: I think you should be more optimistic. If I were you, I think, I would not be bothered about having a clone. I would be ready to accept the c
29、loned sister as a member of my family. We would be good friends. When I was young, I was very naughty and didnt work hard. I would help her not to make the same mistakes.S2: How can you help her?S1: Maybe, I would tell her “If you dont work hard, well never talk to you. All of us think you are a bad
30、 girl.” How about the idea?S2: But are you sure you want to have a clone sister? Do you think it is wise?S1: I should admit I havent prepared well to have a clone sister. Im happy to accept a clone but I still need time to take in her. S2: I think I could never agree to have a clone sister.T: In my
31、opinion it is wrong to clone human beings. But it would be unfair to clone any extinct animals if they would have to live in a zoo. A suitable habitat would be needed for them to lead a natural life.Step HomeworkT: Write down your feelings and attitudes towards clone. Combine them into a composition
32、. Sample version 1:In my opinion it is wrong to clone human beings. If my parents decide to have a clone made of me, I will feel very sad and I will never accept the clone as a member of my family or as my friend because I think it is unfair to natural things.We are all sons of nature, birth or deat
33、h is a natural thing. The day we born, it destined we are independent. Nobody has the right to change ourselves. If one day I were to be cloned to another person, he would kill me, because I lost some original characters. I hope we should respect human beings, and not change any original things.Samp
34、le version 2:I think the cloning represents the progress of the mankind. But it still has many problems to work out, the law, the ethic and especially the goals and purposes for cloning. However, we are actually doing much of this research for the improvement of life for humans. We should get benefi
35、t from cloning.In China, the government has put out written policy on human cloning. It has officially banned research on human cloning for reproduction purposes, but allows cloning on embryonic stem cells and remedial cloning. As we all known, everything cant be perfect. We should treat the cloning
36、 with correct attitudes. We should know the advantages and disadvantages of cloning.Part 2 Language study Teaching goals 教学目标1. Target language目标语言a. 重点词汇和短语bother, regulation, resist, unable, argument, reasonable, obtain, be bound to, from time to time, bring back to life, pay offb. 重点句子Altogether
37、Dolly lived for six years, half the length of the life of the original sheep.The fact that she seemed to develop normally was very encouraging.2. Ability goals能力目标 Enable the students to learn the modal verbs must, have to, have got to.3. Learning ability goals学能目标Help the students learn how to use
38、the modal verbs must, have to, have got to.Teaching important points教学重点The use of the modal verbs must, have to, have got to.Teaching difficult points教学难点How to teach the students to master the usage of the modal verbs must, have to, have got to.Teaching methods 教学方法Study independently and practice.Teaching aids教具准备A projector and a blackboard. Teaching Periods: two Periods:Teaching procedures & ways过程与方式
