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湖南大学《大学英语第三册》课件-第8章.pdf

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1、Unit 8Unit 8Charles.Lee?()Teaching Objectives:Understand the main idea and structure of text A,master the method of Sense-group Reading,the technique of Skimming and Scanning;Appreciate the writing strategies employed by the author,master the method of Defining and Paraphrasing;Master the Key langua

2、ge points in Text A and learn how to use them in context;Express themselves more freely on the theme of Cloning;Write a Persuasive essay about human cloning,master the basics of writing a persuasive essay;Teaching Procedure:Warm-up Activity Listening Activity Text Analysis Language Points Fun Time E

3、xerciseWarm-ups:Movie:The Island is a 2005 American science fiction/thriller film directed by Michael Bay and starring Ewan McGregor and Scarlett Johansson Warm-ups:Warm-ups:Background information on Cloning.The videoCloning:Definition of Cloning:Cloning in biology is the process of producing simila

4、r populations of genetically identical individuals that occurs in nature when organisms such as bacteria,insects or plants reproduce asexually.Cloning in biotechnology refers to processes used to create copies of DNA fragments(molecular cloning),cells(cell cloning),or organisms.Source:http:/en.wikip

5、edia.org/wiki/CloningListening Activity:Write down your answers to the following questions according to what you have heard.1.What does Professor Greely think of human cloning?2.What does Professor Greely think is the greatest problem with human reproductive cloning?3.According to Professor Greely,a

6、re there situations where human reproductive cloning justified?4.Can you guess what the texts in this unit are going to be about?Answers:1.He holds that we must distinguish between different types of human cloning.Some are justified while others are not.2.Safety.3.Yes.4.Human CloningOrganization:Hum

7、an Cloning:A Scientists Story Can you tell me the logic here?For Better or Worse?Claim to Fame Pure Science Sweet Success The Pope and the PresidentText Analysis:Cloning is a very complex scientific topic.How,then,does a writer try to get his ideas across to lay readers?Instead of using highly techn

8、ical or specialized words to explain the topic,he works in his personal experiences so as to make it accessible to a layperson.This article contains a considerable amount of information.To group the information,the writer skillfully breaks it into manageable sections by using straightforward subhead

9、ings.These subheadings not only help organize the text but also provide a guide for readers about what to expect in each section.Actually,each and every section in the article can be treated as a mini essay with its own introduction,middle and conclusion.Essay Writing:英文论文结构:-开头出论点、总分贯始终、结尾重申法。鱼头是 T

10、hesis statement 鱼身是 Topic sentence+supporting ideas+sub-conclusion/Transition 鱼尾是 Repetition/suggestionPair Work:1.What did the writer swear to do at his mothers funeral?2.How did the stem cell research company Stemagen come into existence?3.What were people concerned about when the cloned sheep Dol

11、ly was born?4.Why is human reproductive cloning ethically wrong?5.What is the writers attitude towards therapeutic cloning?6.According to the writer,is it possible to stop human reproductive cloning?Answers:1.At his mothers funeral,the writer swore that one day hed do something about conditions like

12、 hers.2.One night the writer went out for drinks with another gentleman whose father had died of ALS.They talked about their parents then and wanted to do something as a legacy for them.The stem cell research company Stemagen thus come into existence.3.They were concerned about the reproductive poss

13、ibilities of cloning when Dolly was born.Answers:4.Human reproductive cloning is ethically wrong because the majority of reproductive clones in other species are actually abnormal,with very high miscarriage rates,very high stillbirth rates,fetal anomalies,death soon after birth,etc.5.The writer show

14、s a positive attitude towards therapeutic cloning.He holds that therapeutic cloning does not involve any type of risk to human life and actually provides tremendous potential for the relief of suffering in human beings who are undergoing some awful things.6.The writer honestly thinks that someone wi

15、ll attempt human reproductive cloning and there is no way to stop it.Switch Roles:1.Why did the writer and his research group put a human face on cloning?2.What is their purpose in creating disease-specific and person-specific stem cell lines?3.Why does the writer think that in reality their researc

16、h is transcendent?4.Why did the sight of cloned blastocyst bring tears to his eyes?5.Why did the research group destroy the embryos in the process of analysis?6.Why does the writer argue that it doesnt make sense to make their work an emotional and contentious topic?Answers:1.Because by doing so,they could make cloning very real so that people around the world know that cloning is coming along.2.Their purpose in creating disease-specific and person-specific stem cell lines is to study the cause

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