Unit 4 Global warming说课课件（27张ppt）
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| 名称 | Unit 4 Global warming说课课件（27张ppt） |  | |
| 格式 | zip | ||
| 文件大小 | 948.9KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2016-02-24 12:42:14 | ||
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课件27张PPT。选修6: Unit4 Global Warming
The earth is becoming warmer – but does it matter? ——说课稿
说课人：嘉善二高 沈飞飞
一、??教材分析
这一节课是选自人教版高中英语选修6的第四单元
第二课时，即阅读课。本单元的主题是“全球变暖”。这篇阅读源于一本杂志，因此文章排版结构比较特殊。首段概括全文要义，主体部分按照左右两栏编辑。文中插入的两个图表，清晰展示了一段时间内的气温变化和二氧化碳含量的上升。同时，引述了两位科学家的原话，使文章的信息表达更加清楚，更具真实性。全文围绕两个问题展开说明，一是导致全球变暖的原因；二是全球变暖带来的影响。因此，课堂设计也紧紧围绕这两个问题。二、学情分析
1、 高三学生，具备一定的阅读基础和阅读能力，且具备一定的分析问题和解决问题的能力。
2、 根据常识或通过地理、化学方面的课程，对全球变暖这个话题有一定的了解，但在温室气体和温室效应方面可能存在理解上的误区。
3、 相对其他主题来说，学生在环境、气候、能源等
方面的词汇是极为缺乏的，相应的英语知识也是比较少的，所以阅读这种类型的科普文章有一定的难度。
三、??教学目标
1、知识目标
学生能够掌握阅读中的重点单词和词语:come about, random, subscribe to, fuel, quantities of, tend, go up, data, result in, trend, catastrophe, flood, oppose, consequence, state, range, even if, keep on
学生能对全球变暖的起因和结果有一定了解，分清文章中的事实（fact）和观点（opinion）。
三、??教学目标
2、能力目标
学生能够根据杂志类文章的写作特征，把握文章的脉络结构。
在解决不同问题时，学生能够使用不同的阅读技能，如略读，找读，细读等，并提升自己的阅读技能。
提高图标阅读能力。
通过谈论全球变暖问题提高学生的口语表达能力。
三、??教学目标
3、情感目标
学生能够对温室效应，全球变暖问题给予更多的关注，提升环保和节约能源的意识。
三、??教学重难点
1、教学重点
让学生能够学习到有关于全球变暖的一些知识，了解全球变暖的起因和科学家对其影响的不同看法。
进一步提高学生的阅读技能。
2、教学难点
让学生学会分析文章结构，概括各段的核心内容。
四、??教学方法
1、略读法（Skimming）
要求学生以最快的速度略读文章，找出文章信息点，理解文章结构。
2、找读法（Scanning）
给出题目，要求学生以有目标的方式阅读，找出问题答案，从而了解重点细节和图表信息等。
3、数据图引导法
展示两张近几百年来的气温变化图及空气中CO2含量变化图，使同学们认识到全球变暖这一现象，引导学生思考全球在变暖，这会带来什么影响？
五、??教学工具
多媒体设备，黑板Lead inGlobal warmingGlobal warming = bad influence ?Read an article from a magazine.The Earth Is Becoming Warmer – But Does It Matter?Who wrote the article?What is the name of the magazine?What questions does the author want to deal with?1. How does global warming come about ?
2. Does global warming matter?
So how has this come about and does it matter?Para.1Divide the Fast ReadingRead the rest paragraphs ( Para2-7) quickly, divide it into two parts, and conclude the main idea.Part 1: Part 2: Para.2-5Para.6-71. How does global warming come about ?
2. Does global warming matter?
The _________ of global warming.The _________ of global warming.causeeffectPart 1 (Para.2-5): The cause of global warming ______ of fossil fuelshuman activity __________ gases
are produceda natural phenomenon called____________________ heat from the sunhuge___________ of CO2 are added into the atmosphereburning greenhouse greenhouse effect trap quantitiesTemperature will ____go up “Greenhouse” gases“Greenhouse effect”Global warmingevidenceEvidence or phenomenon?Careful-readingRead the 2 graphs: The 1st graph shows the global t _____________between 1860 and________. The temperature i__________ and decreased over this period but on the whole it i_________ by around one degree Fahrenheit. During this time, the earth reached its l________ temperature in about 1910 and its highest in _______ . There was a steady i_______ in the temperature during the 20 years after 1980. We can see from the graph that the earth has become w ________since early last century.emperature2000ncreasedncreasedowest2000ncreasearmerThe 2nd graph shows the amount of c______d _______ in the atmosphere from________to 1997. The Co2 content steadily i ________over this forty-year period. It went up from 315 to________parts per million. arbonioxide1957ncrease370What’s the scientists’ attitudes towards the fact and the cause of global warming?They are quite certain and agree with each other.There is no doubt that…
All scientists subscribe to the view that…
All scientists accept this data.
They also agree that…Part 2 (Para.6-7): The effect of global warmingWhat’s the scientists’ attitudes towards the effect of global warming?They hold completely different attitude.Part 2 (Para.6-7): The effect of global warmingBad effectsGood effects1. the sea level to rise
2. severe storms 风暴
3. floods
4. droughts 干旱
5. famines 饥荒
6. the spread of disease
7. the disappearance of species1. make plants grow faster
2. crops will produce more 庄稼产量更高
3. a greater range of animals 物种更丰富
4. make life better Janice Foster George HambleyNo one knows the effects of global warming!1. The temperature in the last century did not seem to increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can measure the future global rise in temperature.4. The rise in carbon dioxide is causing a
steady increase in global warming.
5. George Hambley believes that global
warming will do good rather than
harm to the earth.
6. It is clear what the effects of global
warming will be.Discussion：2.What should we do to protect the
earth?1.Should we do nothing about global warming or should we do something?Homework1.Learn the useful new words and expressions in this part.
2.Finish the exercise on workbook.The earth is becoming warmer – but does it matter?板书1. How does global warming come about ? Part 1 (cause)
2. Does global warming matter?
Part 2 (effect)
Words and expressions:
subscribe to, catastrophe,
are opposed to…Thank you!
The earth is becoming warmer – but does it matter? ——说课稿
说课人：嘉善二高 沈飞飞
一、??教材分析
这一节课是选自人教版高中英语选修6的第四单元
第二课时，即阅读课。本单元的主题是“全球变暖”。这篇阅读源于一本杂志，因此文章排版结构比较特殊。首段概括全文要义，主体部分按照左右两栏编辑。文中插入的两个图表，清晰展示了一段时间内的气温变化和二氧化碳含量的上升。同时，引述了两位科学家的原话，使文章的信息表达更加清楚，更具真实性。全文围绕两个问题展开说明，一是导致全球变暖的原因；二是全球变暖带来的影响。因此，课堂设计也紧紧围绕这两个问题。二、学情分析
1、 高三学生，具备一定的阅读基础和阅读能力，且具备一定的分析问题和解决问题的能力。
2、 根据常识或通过地理、化学方面的课程，对全球变暖这个话题有一定的了解，但在温室气体和温室效应方面可能存在理解上的误区。
3、 相对其他主题来说，学生在环境、气候、能源等
方面的词汇是极为缺乏的，相应的英语知识也是比较少的，所以阅读这种类型的科普文章有一定的难度。
三、??教学目标
1、知识目标
学生能够掌握阅读中的重点单词和词语:come about, random, subscribe to, fuel, quantities of, tend, go up, data, result in, trend, catastrophe, flood, oppose, consequence, state, range, even if, keep on
学生能对全球变暖的起因和结果有一定了解，分清文章中的事实（fact）和观点（opinion）。
三、??教学目标
2、能力目标
学生能够根据杂志类文章的写作特征，把握文章的脉络结构。
在解决不同问题时，学生能够使用不同的阅读技能，如略读，找读，细读等，并提升自己的阅读技能。
提高图标阅读能力。
通过谈论全球变暖问题提高学生的口语表达能力。
三、??教学目标
3、情感目标
学生能够对温室效应，全球变暖问题给予更多的关注，提升环保和节约能源的意识。
三、??教学重难点
1、教学重点
让学生能够学习到有关于全球变暖的一些知识，了解全球变暖的起因和科学家对其影响的不同看法。
进一步提高学生的阅读技能。
2、教学难点
让学生学会分析文章结构，概括各段的核心内容。
四、??教学方法
1、略读法（Skimming）
要求学生以最快的速度略读文章，找出文章信息点，理解文章结构。
2、找读法（Scanning）
给出题目，要求学生以有目标的方式阅读，找出问题答案，从而了解重点细节和图表信息等。
3、数据图引导法
展示两张近几百年来的气温变化图及空气中CO2含量变化图，使同学们认识到全球变暖这一现象，引导学生思考全球在变暖，这会带来什么影响？
五、??教学工具
多媒体设备，黑板Lead inGlobal warmingGlobal warming = bad influence ?Read an article from a magazine.The Earth Is Becoming Warmer – But Does It Matter?Who wrote the article?What is the name of the magazine?What questions does the author want to deal with?1. How does global warming come about ?
2. Does global warming matter?
So how has this come about and does it matter?Para.1Divide the Fast ReadingRead the rest paragraphs ( Para2-7) quickly, divide it into two parts, and conclude the main idea.Part 1: Part 2: Para.2-5Para.6-71. How does global warming come about ?
2. Does global warming matter?
The _________ of global warming.The _________ of global warming.causeeffectPart 1 (Para.2-5): The cause of global warming ______ of fossil fuelshuman activity __________ gases
are produceda natural phenomenon called____________________ heat from the sunhuge___________ of CO2 are added into the atmosphereburning greenhouse greenhouse effect trap quantitiesTemperature will ____go up “Greenhouse” gases“Greenhouse effect”Global warmingevidenceEvidence or phenomenon?Careful-readingRead the 2 graphs: The 1st graph shows the global t _____________between 1860 and________. The temperature i__________ and decreased over this period but on the whole it i_________ by around one degree Fahrenheit. During this time, the earth reached its l________ temperature in about 1910 and its highest in _______ . There was a steady i_______ in the temperature during the 20 years after 1980. We can see from the graph that the earth has become w ________since early last century.emperature2000ncreasedncreasedowest2000ncreasearmerThe 2nd graph shows the amount of c______d _______ in the atmosphere from________to 1997. The Co2 content steadily i ________over this forty-year period. It went up from 315 to________parts per million. arbonioxide1957ncrease370What’s the scientists’ attitudes towards the fact and the cause of global warming?They are quite certain and agree with each other.There is no doubt that…
All scientists subscribe to the view that…
All scientists accept this data.
They also agree that…Part 2 (Para.6-7): The effect of global warmingWhat’s the scientists’ attitudes towards the effect of global warming?They hold completely different attitude.Part 2 (Para.6-7): The effect of global warmingBad effectsGood effects1. the sea level to rise
2. severe storms 风暴
3. floods
4. droughts 干旱
5. famines 饥荒
6. the spread of disease
7. the disappearance of species1. make plants grow faster
2. crops will produce more 庄稼产量更高
3. a greater range of animals 物种更丰富
4. make life better Janice Foster George HambleyNo one knows the effects of global warming!1. The temperature in the last century did not seem to increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can measure the future global rise in temperature.4. The rise in carbon dioxide is causing a
steady increase in global warming.
5. George Hambley believes that global
warming will do good rather than
harm to the earth.
6. It is clear what the effects of global
warming will be.Discussion：2.What should we do to protect the
earth?1.Should we do nothing about global warming or should we do something?Homework1.Learn the useful new words and expressions in this part.
2.Finish the exercise on workbook.The earth is becoming warmer – but does it matter?板书1. How does global warming come about ? Part 1 (cause)
2. Does global warming matter?
Part 2 (effect)
Words and expressions:
subscribe to, catastrophe,
are opposed to…Thank you!