unit4reading.doc

老河口市高级中学高二英语导学案执笔：余剑 审核：赵清林 授课人： 授课时间： 学案编号： 17 班级: 姓名： 小组：Book 6 Unit 4Reading 导学案【学习目标】1.理解课文，掌握Global Warming的知识，培养快速阅读，整体理解的能力。2.通过自主学习，合作探究；让学生了解能源分为“不可再生能源”和可再生能源”3.通过学习，让学生了解“全球变暖”、“能源的种类”等方面的知识，帮助学生树立“节约能源、保护环境”的主人翁意识。附：理解把握文章主旨, 流利复述。课前预习案【自主学习】-大胆试Task. Skimming to get general ideas1. Who wrote the article? Whats the name of the magazine?_2.What are the names of the three scientists mentioned in the article?_Task：Scan the text and then choose the best answer according to the text.1. What is the main topic? A. The earth. B.Global warming.B. Global warming. C. Becoming warmer doesnt matter. D.Three Scientists.2.Where does this article most probably come from? A.Newspaper B. Novel C. Magazine D.Poem3. The purpose of the first paragraph is to _. A. introduce the writer B. explain a change C. introduce the topic D. raise a question4. The graphs are used to _. A.illustrate points by providing evidence B.tell the change of temperature C.tell the content of carbon dioxide in the air D.interest the readersTask .Match each part with the main idea.Part1 (1) A. Explain how global warming comes about. Part2 (2-5) B. a debate over global warming.Part3 (6) C. No one knows the effects of global warming.Part4 (7) D. List two different attitudes of scientists towards the effects of global warming.Task. Judge which statement is true, which one is false.1.Only a few scientists subscribe to the view that the increase in the earths temperature is due to the burning of fossil fuels.2.If there were no greenhouse effect , the earth would be about 33 degrees Celsius cooler than it is.3. We need greenhouse gases. So we should add huge quantities of extra carbon dioxide into the atmosphere.4. All scientists agree that the burning of fossil fuels has resulted in more carbon dioxide.5. George Hambley agrees with Janice Foster on global warming.具体要求：第一步：抓住细节的能力方法导引：采用扫描式阅读(scanning)，进行有选择有目的的阅读。目的是寻找某些资料和信息，对于无关的部分可以忽略。要注意总结题目类型 （主旨归纳题 细节题 猜测词义 推理判断题）， 然后根据不同类型采用不同的做题方法。 务必在原文中划出关键句，标上题号。课堂探究案合作探究】-我参与内容：1. 自主学习中疑难点。2.课文中的重难点句子。3. 在文中标出下列词组。Task V: Scan the text and find the useful phrases and difficult sentences, then underline them in your.1. 与相比 2.发生，造成2. 同意，赞成 4.大量的5.倾向于 6.上升，增长7的数量 8.导致9.反对 10增加，逐步建立11.即使 12.继续13. 总的来说 14.代表的一方15.对有影响 16.有能力做17.对有影响 18.只要19.对漫不尽心 20.等等21.对节约 22.对有影响Task.Translate the following sentences from Chinese into English.1. There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成的，并非是一种无规律的自然现象。 2. Some byproducts of this process are called “greenhouse” gases, the most important one of which is carbon dioxide.这个升温过程的一些副产品就叫做“温室”气体，其中最重要的就是二氧化碳。3.Without the green house effect，the earth would be about thirty-three degrees Celsius cooler than it is. 如果没有温室效应，地球会比现在冷33。4.It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. 是一位名叫查尔斯奎林的科学家把1957至1997年期间大气层中二氧化碳的含量作了精确的统计。5.It is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.正是由于燃烧越来越多的化石燃料导致了二氧化碳的增加。Task.Read the passage carefully and finish the following activities.Part I(Para.1)The first paragraph is in bold(粗体), which once again introduces the problem of _.Part II(Para2-5)Fill in the blanks according to the text.Greenhouse effect is a natural p_. But the problem begins when we add huge q_of extra carbon dioxide to the atmosphere by burning fossil f_. Therefore, more heat energy is t_in the atmosphere. It is the increased amount of carbon dioxide causing the global temperature to_.Part III(Para6)1.The different ideas between Dr. Janice Foster & George HambleyDr. Janice Foster George HambleyCarbon dioxide has caused the global temperature to _. An increase of five degrees would be a _ and could be _.More carbon dioxide is a _ thing,which makes crops _ more and will encourage _.2.What are the effect of global warming? 【negative effect 消极作用】The sea level to rise 海水上涨 Severe storms 风暴_ _ _The spread of disease 疫病 The distinction of species物种毁灭3.What are the effect of global warming 【 positive effect 积极】._. .Crops will produce more .Encourage_animals 促使动物种群的丰富.make life better第二步：把握文章主旨大意的能力方法导引：仔细阅读文章，找出正确答案并概括总结。第三步：学会应用。注意句子结构，正确理解句子类型。【展示点评】- 我自信具体要求：看规范（书写、格式）看对错。找出关键词，补充、完善。点评内容，讲方法规律。面带微笑，全面展示自我。TaskVIII.Summary This passage aims at showing us how does global warming_. It also introduces two different _of scientists towards t