1、 Mudule 5 Unit3 Welcome to the unitLearning aims:1.think more about the relationship between science and nature.2.To arouse students interest in the unit topic 3. To help students kwon more about cloning technology4. To encourage students to participate in the discussion relevant to cloningLearning
2、procedure:Step1: GreetingsStep2: Lead-inScience is developing so fast that sometimes it is beyond our imagination. Man has created many things such as Radios, TV sets and so on. Do you think so?What else has been created by man? Could you give us some examples? (此处教师可以通过问题或简单的事例过度到我们本节课的话题cloning上面来
3、)Step 3: Brainstorming.1. Ask students to read the title of the unit Science and nature. Ask students the following questions: Do you think there is conflict between science and nature? What might the conflict be? 2. Show a picture of the first cloned mammal, Dolly.（P41） Give some introduction about
4、 the creation of Dolly. Tell students this new technology is called cloning, which produces an exact copy of an animal or a plant from its own cells. 3. Lead students to learn the unit while thinking about the relationship between the title of the unit Science and nature and cloning technology.Step4
5、: Discussion.1.Show the following three pictures one by one, each of which shows a successfully cloned animal. As to the five pictures, we conduct the following activities.(Picture2) The five little pigs names are Noel, Angel, Star, Joy and Mary.(Picture3) Tell students that the kitten in the pictur
6、e is called Cc. Its name is from Copycat. Scientists in the USA created it with a cell taken from its mother, Rainbow. It was born in December 2002. (Picture4) The name of the cloned monkey is ANDi. It is from inserted DNA spelt backwards. It is the first genetically modified monkey. The technology
7、is different from that used for Dolly.2. Get students to form groups of four or six to discuss the further questions: From just these pictures, can you identify the differences between the cloned animals and normal ones? In your opinion, what might be the differences between these cloned animals and
8、 normal ones? Can these animals lead a normal life as normal animals? Ask several groups to report their answers to the class. Allow different opinions and encourage further discussion.Step5 Summary Assign students to surf the Internet or refer to other sources for further information relevant to cl
9、oning technology, so as to finish the first two questions below the pictures. Ask students to make as many notes as possible.Step 6 Homework1. 词形转换1Announcement n.-_(v) 2. Intention n-_(v)3. anxiety n-_(adj) 4. medical adj-_(n)5. benefit v-_(adj) 6. majority n-_(adj)7. conclude v-_(n) 8. resistant adj-_(v)9. succeed v-_(adj) 10.productive adj-_(n)2.短语翻译：1. 一方面 _ 2. 表扬，赞扬_2. 努力推进 _ 4. 用完 _5.供出售 _ 6. 准备就绪，布置妥当 _7. 接生婴儿 _ 8. 以告终 _