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1、2022年高中英语Unit 3 Welcome to the unit教案 新人教版必修5教学目标1. To arouse students interest in the unit topic 2. To help students know more about cloning technology3. To encourage students to participate in the discussion relevant to cloning重点1. To arouse students interest in the unit topic 难点3.To encourage stu
2、dents to participate in the discussion relevant to cloning教法及教具Listening, Discussing教学过程教 学 内 容 个案调整教师主导活动学生主体活动 Step 1 Brainstorming1. Ask students to read the title of the unit Science versus nature. Draw students attention to the word versus. Tell them that versus is usually used when discussing
3、sports petitions or the law, which means that two teams or sides are against each other.Encourage students to think why versus is used here. Ask students the following questions: e.g.: Do you think there is conflict between science and nature?What might the conflict be?2. Show a picture of the first
4、 cloned mammal, Dolly. Give some introduction about 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 u
5、nit Science versus nature and cloning technology.Step2 Sharing information1.Show the following five pictures one by one, each of which shows a successfully cloned animal. As to the five pictures, we conduct the following activities. (Picture1)the worlds first cloned adult animal. The scientists who
6、cloned Dolly are to stop experiments involving genetically modifying pigs for human organ transplants because of concerns that deadly new diseases could be passed on to people. (Picture2) The worlds first cloned pigs were produced from anadult female pig using a different technique from the onethat
7、produced Dolly. (Picture3) Tell students that the kitten in the picture 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 b
8、ackwards. It is the first genetically modified monkey. The technology is different from that used for Dolly.Step 3 Discussion1. Do you think governments should pass laws to prohibit human cloning? Why or why not?Part AThey shouldnt forReasons:1. Cloning can help cure many diseases and save a lot of
9、people lives. 2.3.Part BThey should, forReasons:1.Cloning can lead to ethical(伦理) problems 2. 3.Giving an oral reportToday our class had a discussion about whether the governments should pass laws to prohibit human cloning.Some students think that the governments should, forHowever, some other stude
10、nts think it necessary to prohibit, forIn my opinion, Step 4 HomeworkAssign students to surf the Internet or refer to other sources for further information relevant to cloning technology, so as to finish the first two questions below the pictures. Ask students to make as many notes as possible.板书设计教学札记
