高二英语人教新课标选修8unit2-the-return-of-the-dinosaurs-课件教学文案

1、高二英语人教新课标选修8Unit2-the-return-of-the-dinosaurs-课件剑龙剑龙stegosaurus雷龙雷龙 brontosaurus翼龙翼龙pterodactyl Whats the main idea of the text?Para1 explain the impossibility of cloning dinosaurs Para2 conclude that its just a dreamPara3 introduce the topic of the passage Reading Comprehension IWhat is the writers

2、 attitude towards cloning the dinosaurs? A. Supportive. B. Neutral (中立的中立的). C. Negative (否定的否定的). D. Subjective(主观的主观的).Why is it either impossible or unsuitable to clone dinosaurs.? (Give some reasons .)Reason 1:Reason 2:Reason 3:DNADiversity Habitat Scientists are still experimenting with cloning

3、 mammals because they think it can make money. If we can clone any extinct animals, we should let them live in a zoo.Reading Comprehension 1. Why is it wrong to clone an extinct animal if it would have to live in a zoo? Because it is not a suitable habitat to develop and increase its numbers. The zo

4、o is not a natural environment for a wild animal.2. Why shouldnt you clone an extinct animal if there isnt enough diversity in the group? Because there will not be enough genetic variation in the group to be able to resist new illnesses. Summary:A good passage usually has a clear organization or str

5、ucture. Bullet points (first, second, third) Good or useful sentence patterns (transitions 连词连词) The structure : the three-paragraph form (三段式三段式) WritingThe cloning of human beings From time to time people suggest that can possiblybe brought back to life through cloning. Unfortunately, withwhat we

6、know now, this is either impossible or unsuitable.Here are the reasons： Firstly, Secondly, Finally, So I think, based on what we know now, you cannot . It is merely a dream. Whats your opinion of cloning dinosaurs? Whats your opinion of cloning human beings? Free TalkDiscussionThe Cloning of Human B

7、eings Stem cells(干细胞) are responsible for developing andrepairing the body throughout life. As a result, they mightbe used to repair damaged or diseased organs and tissues.Researchers are looking on cloning as a way to creategenetically engineered human stem cells for research andmedical purposes. T

8、o clone or not to clone: that is the question. Humancloning is highly controversial and raises a number ofproblem. Why would people want to clone humans? Oneimportant reason is to help childless couples have children.From a technical point of view, before humans are cloned,we need to have a good ide

9、a of the risks involved. Cloning humans does give rise to some misgivings(误解),raising a number of moral problems involved. In fact, thesocial influences of producing humans artificially werebrilliantly explored in the famous novel Brave New Worldby Aldous huxley, and also in the movie The Island. Hu

10、man cloning is basically about creating a geneticallyidentical copy of a previously existing person. Why wouldsome choose to clone human beings? Well , generally, it canmake couples unable to have babies have own children.Replacing a dead child is also another reason why somepeople have expressed in

11、terest in the technology. “当然应该当然应该克隆克隆人人, ,如果谁第一个掌握了这个如果谁第一个掌握了这个技术技术, ,他就是我真正的、也是唯一的竞争对手。他就是我真正的、也是唯一的竞争对手。” ” 比尔比尔盖茨盖茨 Natural selection and survival of the fittest. -Charles Darwin 物竞天择物竞天择,适者生存。适者生存。 -查尔斯查尔斯达尔文达尔文 “当然应该当然应该克隆克隆人人, ,如果谁第一个掌握了这个如果谁第一个掌握了这个技术技术, ,他就是我真正的、也是唯一的竞争对手。他就是我真正的、也是唯一的竞争对手。” ” 比尔比尔盖茨盖茨 Natural selection and survival