1、Unit 4 Global warming. 1. 教材分析本单元以 Global warming 为主线，旨在通过单元教学使学生经过思考、学习，认识 到全球变暖的起因和它所带来的种种后果。同时鼓励学生进一步阐述地球所面临的其它严重问题，激发学生的环保意识。引导学生运用所学语言、句式表达自己对这些现象的看法，培养他 们为自己的观点辩论的能力，并能运用所学知识写一篇有关环境问题的论文。1.3 Reading 是一篇从杂志节选的文章。它讲述了全球加速变暖的原因人为温室效应，后果以及人们对此的不同观点。要求学生在理解文章大意的同时注意它的写作技巧：提出问题分析现象阐述各方面的不同观点以疑问句作为总结
2、引发读者深思，自行做出判断。这为 Comprehending 中 Exercise 3 的分组辩论活动留出了很大的空间，埋下了很好的伏笔。The Second Period Reading来源:Z.xx.k.ComTeaching goals 教学目标1. Target language 目标语言来源:Zxxk.Coma. 重点词汇和短语compare, phenomenon, graph, fuel, trap, data, climate, catastrophe, consequence, range, per, glance, compare to, come about, fierc
3、e debate, result in, build upb. 重点句式There is no doubt t hat the earth is becoming warmer. P26Without thegreenhouse effect, the earth would be about thirty-three degrees Celsius cooler than it is. P26They also agree that it is the burning of more and more fossil fuels that has resulted in this increa
4、se in carbon dioxide. P262. Ability goals 能力目标Enable the students to talk about the causes and effects o f global warming.3. Learning ability goals 学能目标Help the students learn how to talk about the causes and effects of global warming and express ideas about what people should do about it.Teaching i
5、mportant points 教学重点Help the students learn how to debate over the topic “We should do nothing about global warming.”Teaching difficult points 教学难点Enable the students to learn the writing skills of the text and get a better understanding of articles of this kind.Teaching methods 教学方法Listening, readi
6、ng and group work.Teaching aids 教具准备 A recorder and a computer.Teaching procedures Group B discuss why they disagree. Group A and B get together. Tell each other the reasons why agree or disagree with the statement.T: We dont have time to do it in class. Please finish it after class. Try to collect
7、as much information as possible on the Internet and share it with the others in class. Next class Ill get some groups to act out your debates. Step Homework1. Read the passage again and review the new words and expressions.2. Prepare the debate in groups.3. Preview Using Language WHAT CAN WE DO ABOUT GLOBAL WARMING？
