Unit 4 Global warming 教学设计参考.doc
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1、Unit 4 Global warming教学设计语言技能了解“全球变暖”、“能源的种类”和“节约能源”等方面的知识,能听懂关于全球变暖的简单英语介绍, 树立“节约能源、保护环境”的主人翁意识;能用英语表达同意和不同意、责备和抱怨等日常交际用语,掌握本单元关于气候、能源和环境的词汇、短语和句型,能根据阅读材料列举信息;学会如何写海报。语言知识学习本单元28个新单词和11条短语以及it用在强调句中的用法。情感态度教育学生清醒认识“全球变暖”的事实,使其树立节约能源、保护环境的意识。学习策略通过理解课文的组织结构(Listing)培养认知策略,通过对全球变暖问题的讨论培养交际策略和情感策略。文化意
2、识理解不同文化中人们对全球环境问题、能源问题的看法和关注程度。课时安排Warming up & Pre-readingReading and comprehendingLearning about languageUsing languageLanguage pointsTeaching goals:To learn the causes and the effects of global warmingTo learn about useful words and expressions To grasp the grammarhow to use “it” for emphasis in
3、a sentenceTo learn how to express agreement and disagreement, blame and complaint.To learn how to write report about saving resources and protecting the environment.Period One: Warming up & Pre-readingWarming-up Leading in by brainstormPut the students into groups of four and discuss the following q
4、uestions: 1. What do we use energy for?2. What are the sources of energy?3. What sources are renewable and what are non-renewable? 1. (differently)1. Lights, heating, and all kinds of electric equipment use energy2. coal, oil, solar panels, nuclear energy, natural gas, wind power, water, plant waste
5、, tidal energy, etc.2. coal; oil; solar panels; nuclear energy; natural gas; wind power; water; plant waste; tidal energy, ect.3. fill in a form:non-renewablenatural gasrenewablethe sea (tidal energy)renewablehot springs or geysersrenewableplant waste (biomass energy)renewablewater (hydro-electric p
6、ower)non-renewableuranium (nuclear energy)Renewable /non-renewableSources of energy Pre-reading1.We use much energy in our daily life, what is the effect of using energy in our world?The use of energy - Give off carbon dioxide, other wasted gases and heat into the air-The earth is becoming warmer an
7、d warmer. (global warming)Greenhouse effect2. How does a greenhouse work?The greenhouse traps the heat from the sun and keeps it from escaping, which can make it heat up and so the plants can grow throughout the cold period.3. Under this greenhouse effect, what happens? 2.The earth is becoming warme
8、r and warmer.Period Two: ReadingTopic: short passage about global warming.Leading inTo stimulate Ss interest in reading the text. Divide the Ss into groups of four. Discuss the following three questions.1. What is global warming?The earth is becoming warmer2. How has this come about?Human activitybu
9、rning of fossil fuelsGreenhouse effectgreenhouse gaseswe need gasesHuge quantities of extra carbon dioxide3. What are the effects of global warming?The sea level to riseSevere storms, droughts, famines, the spread of diseases, and the destruction of species.Task 1: SkimmingAsk the Ss to have a quick
10、 look at the magazine article. Then encourage them to tell what they notice about how the text is organized. ( Answer: It has a title; a first paragraph that is in bold; the main text; diagrams; two quotes)Task2: ScanningTo glance at the text, and answer the following questions.1. Who wrote the maga
11、zine article? What is the name of the magazine? Sophie Armstrong wrote the magazine article. The name of the magazine is Earth Care.2. What are the names of the three scientists mentioned in the article? They are Dr. Janice Foster, Charles Keeling and George Hambley.3. What do they think about globa
12、l warming? Do they agree with one another? They dont agree with each other. Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambley thinks global warming will be mild with few bad environmental consequences.Charles Keeling believes it is the burning of more and m
13、ore fossil fuels that is resulting in a big increase in carbon dioxide.4. What are the two graphs about? Graph I shows the temperature increase of one degree Fahrenheit between 1860 to 2000. Graph 2 is about the carbon dioxide content in the atmosphere, 1957-1997.5. What is the main topic of the art
14、icle? Global warming/ the warming of the earth.Task 3: Intensive readingAsk Ss to read the text carefully and sum up the main idea of each part.Part one ( para1 )Introduce a debate over the issue of global warming.Skills : Raising a question Part two ( para2-3 )Illustrate(explain) how global warming
15、 comes about. Skills : giving examples, using graphs, explanation Part three ( para4-8 )List two different attitudes among scientists towards global warming. Skills : giving examples, making contrast (comparison)Part four ( para9 )Its up to readers to think and decide whether people should do someth
16、ing about global warming or not. Skills : using a question, leaving readers to think over the issue.Task4: ListeningListen to the tape. After it, to get Ss to finish Ex2 on page 27.Task 5: DiscussionThe earth is becoming warmer, in your opinion, does it matter? If it does, as a student, what can you
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