课件38张PPT。Words studyUnit 4 ReadingTHE EARTH IS BECOMING WARMER — BUT DOES IT MATTER?
【学习目标】 1. 扎实理解课文，掌握课文中的基础知
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；了解课文
的主要内容，并能流利复述课文。 3.了解能源分为“不可再生能源”和“可再
生能源”，同时，让学生了解“全球变暖”,
帮助学生树立“节约能源，保护环境”
的主人翁意识。 Fast reading:★ Who wrote the article? What‘s the name of the magazine?
★ What are the names of the three scientists mentioned in the article?
Sophie Armstrong. Earth Care爱护地球Dr Janice Foster,
Charles Keeling,
George HambleySkimmingSkim the title:
THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?1.What is the main topic?
The earth. B. Global warming.
C. Becoming warmer doesn’t matter.
?Skimming2.Where does this article most probably come from?Newspaper B. Novel
C. Magazine D.Poem?3.The purpose of the first paragraph is to ___.
introduce the writer B. explain a change
C. introduce the topic D. raise a question
4. The graphs are used to _____.
illustrate points by providing evidence
tell the change of temperature
tell the content of carbon dioxide in the air
interest the readersskimmingExplain how global warming comes about.Introduce a debate over global warming.No one knows the effects of global warming.List two different attitudes of scientists towards the effects of global warming.I
(Para.1)II
(Para.2-5)III
(Para.6)IV
(Para.7)Match each part with the main idea.Fast Reading辩论What skills are used in the four parts?
Part 1
Part 2
Part 3
Part 4using a question, leaving readers
to think over the issue
giving examples ,making
contrast (comparison)
giving examples ,using graphs,
explanation
raising a question Unit 4 课文理解导学案反馈情况较多同学对PartⅡ单词填空的语法不理解，强调句型不熟练：It+ is/was+被强调部分+that/who+其他。
部分同学做题速度较慢，【合作探究】taskⅨ练习未完成。 Cooperation and discussion合作探究 5’Presentation and Comment展示点评对展示同学的要求:
①书写整齐，字迹清晰
②板书设计美观,知识准确
③展示时间三分钟
Presentation 展示
对非展示的同学的要求:
关注被点评小组展示内容;
Look + listen+ look for advantages
用心看，注意听，尽力发现优点；
积极、认真思考。点评同学要求：
①知识是否准确；板书设计
是否良好；给出合理分数，
尽力在原文中找到答案出处。
②声音洪亮，语言清晰，
面向全体，自然大方。
非点评的同学做到：
①认真倾听、积极思考并做好记录。
②不明白或有补充的要大胆质疑，
悦纳他人见解。
Are the statements True or false? Correct the false one.1. Only a few scientists subscribe to the view that the increase in the earth's 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. All scientistsTFFBut too much carbon dioxideFis opposed toTwill cause temperature to go up(Some phrases in Passage 1:)产生
探究这些问题
一种无规律的自然现象
赞同这种观点
化石燃料
少量气体
大量的
额外的二氧化碳
倾向于、趋于做come about
explore these questions
a random but natural phenomenon
subscribe to the view
fossil fuel
small amounts of gas
huge quantities of
8.extra carbon dioxide
9.tend to do10. 作精确的统计
11. 导致
12.一场大灾难
13.干旱/饥荒
14.反对这观点
15.对环境的影响
16.更多种类的动物
17. 持续转暖10. make accurate measurements
11. result in
12. a catastrophe
13. severe droughts/famines
14. be opposed to this view
15. environmental consequences
16. A greater range of animals
17. Keep on warming
www.themegallery.com1. The first paragraph is in bold(粗体), which once again introduces the problem of _____________________. global warming Careful ReadingPart I(Para.1)burning fossil fuelsCO2more heat trappedGlobal WarmingHow has global warming come about?Greenhouse Gaseswww.themegallery.comwww.themegallery.com1.Fill in the blanks according to the text.henomenon uantitiesuels rapped go upPart II(Para2-5)Careful Readinggo upcatastrophe very seriouspositiveproducea greater range of2.The different ideas between Dr. Janice Foster & George Hambley Part III(Para6)
www.themegallery.comcause the sea level to rise
severe storms
floods
droughts
famines
the spread of diseases
disappearance of speciesPositive effects Negative effects make plants grow quicker
crops will produce more
a greater range of animals
make life betterwww.themegallery.comOf the two ideas, which are you in favor of ?
Why ?Careful ReadingPart IV(Para7)We shall do something about global warming.
We shall do nothing about global warming.
www.themegallery.comBecause we have witnessed a large number of
disasters predicted by some people.
①It is human activity that has caused this global warming rather than a random but natural phenomenon. ( Line 6)
② It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide……(Line 7)
③ It is the burning of more and more fossil fuels that had resulted in this increase in carbon dioxide. (Line 15)找出文中的强调句型:www.themegallery.comSummary This passage aims at showing us how does
global warming____________. It also introduces
two different _________of scientists towards the
increase of temperature. Dr. Janice Foster thinks
that it is a _________thing. Dr. Hambley thinks
that it is a _______thing. However, __________
knows the exact effects of global warming.come aboutattitudesnegativepositiveno one旨在“低碳生活” (low-carbon life) “低碳生活”(low-carbon life)，就是指生活作息时所耗用的能量要尽力减少，从而减低碳，特别是二氧化碳的排放量，从而减少对大气的污染，减缓生态恶化，主要是从节电节气和回收三个环节来改变生活细节。 www.themegallery.comDicussion1.As a student, what should we do to stop the earth becoming warmer and warmer? www.themegallery.com1. Reduce the burning of fossil fuels
2. Plant trees
3. Use bags that can be recycled
…A sample posterThe minimum effort is also a kind of support.
再小的力量也是一种支持。What can you do to slow the
global warming?
2. Promise The slogan of Earth Care: CareEarth starts from the life intravenous drip ！
爱护地球，从点点滴滴做起！
Love low-carbon,
love life. 爱低碳，爱生活。
Summary学科班长
1.总结本节课知识和收获，
回扣目标，强调重点内容
2.表扬优秀晋级个人和小组。好 榜 样! Homework
1）Fill in the blank in learning
about language.
2）Memorize new words in
Unit4.Thank you.关于CareEarth
CareEarth（中文名：爱护地球）是一个从事生态环境保护的公益性民间组织。CareEarth的使命是联合所有热心和支持环保的有志之士，为遏制日益恶化的生态环境，保护人类赖以生存的地球环境而努力。[1]
??CareEarth LOGO
编辑本段成立背景
几百万年以来，人类的祖先在这个蓝色的星球与环境和谐共处，地球用她丰富的资源养育着一代又一代的人们。可是现在，短短百十年间，人类为了经济发展严重的破坏了自然环境。水、空气、土地被污染，森林被大片砍伐，动物的栖息地遭受破坏，陪伴了人类几百万年的物种一个个灭绝，连人类自身的食物也遭遇前所未有的危机。作为地球大家庭中的一员，改变日益恶化的环境，我们责无旁贷。
编辑本段CareEarth使命
联合所有热心和支持环保的有志之士，为遏制日益恶化的生态环境，保护人类赖以生存的地球环境而努力。
编辑本段CareEarth愿景
期望有一天，没有污染、没有屠杀、没有贫穷；蓝天白云，碧水青山，人与自然和谐共生。
编辑本段CareEarth关注项目
水资源保护
植被保护
物种多样性
食品安全
清洁能源
污染防治
绿色设计
编辑本段行动口号
爱护地球，从点点滴滴做起！
CareEarth，Starts from the life intravenous drip ！
参考资料
