一、课例背景
本课例由广西省融安县高级中学吴佳玲老师执教，是校内高二阅读公开课，授课时间40分钟。
二、教学分析
1.教学内容
本课例选取人教新课标版高中英语必修6 unit4 reading(说明文)，文本语言难度较大。描述全球变暖起因，如何应对全球变暖问题以及两个专家对全球变暖意见和看法。课时的教学重点是认识全球变暖产生的后果；鼓励学生表达对全球变暖的看法和应对措施。
2.学情分析
授课对象为高二年级B层次的学生，基础弱，本课内容贴近生活并涉及其他学科相关知识，可在网上搜相关话题、文章和图片。学生有兴趣，为本课学习提供背景知识支架。
3.教学目标
(1)熟悉与全球变暖和表达观点的词汇：burning of fossil fuels、human activity、greenhouse gases等，句式：I would like to suggest that we’d better…I think it would be wise to 等。(2)了解全球变暖的起因后果，启发学生应对全球变暖。(3)通过讨论培养批判性思维，激发社会责任感和积极的生活态度。
三、教学过程
Step I lead –in
【设计意图】
导入：有趣的视频、直观的图片和简单对话，激活学生已有背景知识，呈现将出现的词汇。活跃了课堂气氛，激发学生学习热情，为接下来的阅读提供支撑。
Step II fast reading
连线段落大意
Part I (para1) A. How global warming comes about.
Part II (para2-5) B. Introduce a debate (讨论) over the issue（问题）of global warming
Part III (para6) C. It’s up to readers to think and decide whether people should do something about global warming or not.
Part IV (para7) D. List two different attitudes among scientists towards global warming.
【设计意图】引导学生运用略读阅读策略，关注关键句。培养学生快速阅读和归纳主旨大意的能力。
期刊文章分类查询,尽在期刊图书馆
Step III Careful reading and discussion
(1)What is global warming? (para2)
(2)How has the global warming come about?(para3)
It is ___that has caused this global warming. Besides, the increase in the temperature is also due to___, some byproducts of which is called ____, and the most important one of which is ____. We need ___ to keep the earth warm enough, but __may cause the global temperature to go up.
A. burning of fossil fuels B. human activity C. greenhouse gases D. huge quantities of extra carbon dioxide E. carbon dioxide F. small amounts of gases
(3)para4、5(effects)
From 1860 to 2000, the global _________has risen (上升) about _degree Fahrenheit.
Paragraph 4 between ____and_____, the carbon dioxide content of the atmosphere went up from around ________per million to around ________per million.
(4)The different ideas between Dr. Janice Foster & George Hambley(para6)
Dr. Janice FosterGeorge Hambley
Carbon dioxide has caused the global temperature to __________. An increase of five degrees would be a ____________ and could be ___________.Others think that there may be_____________More carbon dioxide is a __________ thing, Which makes plants _____________; crops ______________ and will en- courage ____________________.
【设计意图】学生采用不同的阅读策略，加强学生寻找细节信息的能力，小组合作学习，获取准确信息并有效的解读，培养学生思维能力，唤起环境保护意识。
Step IV speaking
What should we do to protect the environment?
Useful expressions:
As to…, I suggest that we should…
I would like to suggest that we’d better…
I think it would be wise to …
I think it would be more beneficial if we…
【设计意图】学生运用自己所学知识，口头输出，培养学生口语能力并学生充表达对保护环境之情，达到情感升华。
Step V summary and homework
(1)surf the internet to get more information about the global warming and environmental protection.
(2)完成课文的语法填空
【设计意图】课堂学习延伸到课外，巩固所学知识，了解更多全球变暖信息，语法填空与高考题型相结合，做到生活与考试结合。
四、教学反思
1．对学情认真了解，对文本研读和思考，课堂设计准备充分。学习任务分解，降难度，引导学生思考，培养思维能力、情感态度，有效调控了活动，让学生对文本学习有信心。2．教学目标明确，课堂有效，学生参与度高。教学活动紧凑，学生围绕教学目标思考和学习。活动形式多样，学生掌握文本信息并学到相应的阅读技能与策略，并对文本深层次探索，启发创造性思维。3.小组合作探究学习模式和学案的合理利用。小组成员合作探究，互帮互助，学习效率提高。学案使学习任务明确，学习更有针对性。
(作者单位：广西融安县高级中学 545400)
论文作者:吴佳玲
论文发表刊物:《中学课程辅导●教学研究》2017年6月上
论文发表时间:2017/9/6
标签：学生论文; 变暖论文; 全球论文; 意图论文; 文本论文; 安县论文; 培养学生论文; 《中学课程辅导●教学研究》2017年6月上论文;