约6260字。

　　Unit 2 Cloning
　　Ｉ． 单元教学目标
　　话题Topics
　　Natural clones and man-made clones;
　　The history of cloning;
　　Controversy about cloning
　　技能目标Goals
　　Talt cloning
　　Practice expressing and supporting an opinion
　　Use the appositive clause
　　Write a composition about cloning
　　Ⅱ.目标语言
　　功 能 句 式 Expressing and supporting an opinion
　　I’m happy to accept …. But….
　　I would never accept….
　　I’m not bothered about…..
　　I don’t mind but….
　　I hope you’ll carry on….
　　Are you sure you want to….
　　I agree with you that….
　　Is it fair to….?
　　Do you think it is wise to….?
　　I thin should….
　　Well done to you for….
　　I don’t understand why you don’t….
　　I can’t help thinking….
　　I could never agree to….
　　词 汇 1. 四会词汇
　　Strawberry，differ，exact，straightforward，breagh，disturbing，cast，altogether，objection，media，moral，ceiling，shortly，retire，assumption，merely，decoration，zebra，aloud
　　2. 词组
　　cast down，object to，the media，in favour of，（be）bound to（do）…, from time to time, bring back to life, pay off
　　3． 重点词汇
　　clone， commercial， producer， undertake， arbitrary，object ，forbid， accumulate bother， regulation， resist， unable， argument ，reasonable， obtain 
　　结构 Appositive clause — that 可引导同位语从句
　　重  点  句  子 It is a way of…. (P11)
　　The fact is that….(P11)
　　The question that occurred is….(P12)
　　How differently do people think of….(P14)
　　The….is …but…(P14)
　　The advantage is that….(P15)
　　How would you treat….(P54)
　　I don’t mind but….(P55)
　　I agree with you that….(P55)
　　分课时教案
　　The First Period  Warming up and Reading
　　Teaching goals教学目标
　　1. Target language目标语言
　　a. 重点词汇和短语
　　clone，commercial，producer，undertake，arbitrary，object，forbid，accumulate，cast down，object to，the media，in favour of
　　b. 重点句子
　　It is a way of….
　　The fact is that….
　　The question that occurred is….
　　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 I Warming up
　　This 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 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. It sounds very different and complicated to us. In fact, I mean, in our daily life, this happens often. For example, gardeners tattings 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)