2022年高中英语 Unit 4 Warming up pre reading教案 新人教版选修6

1、2022年高中英语 Unit 4 Warming up pre reading教案 新人教版选修6Warming-up Leading in by brainstormPut the students into groups of four and discuss the following questions: 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)Lights, heating, and all kinds of electric equipment use energy2. coal, oil, solar panels, nuclear energy, natural gas, wind power, water, plant waste, tidal energy, ect.2. coal; oil; solar panels; nuclear

2、 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 power)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

3、 into the air-The earth is being warmer and 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? The earth is being warmer 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

4、. Discuss the following three questions.1. What is global warming?The earth is being warmer2. How has this e about?Human activityburning 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 look at the magazine article. Then encourage them to tell what they

5、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 magazine 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.

6、 What do they think about global 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 more 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

7、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 article? 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 es about. Skills : giving examples, using graphs, explanation Part t

8、hree ( para4-8 )List two different attitudes among scientists towards global warming. Skills : giving examples, making contrast (parison)Part four ( para9 )Its up to readers to think and decide whether people should do something 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 being warmer, in your opinion, does it matter? If it does, as a

9、 student, what can you do about it?Period Three:Using languageStepI: Reading“ What can we do about global warming.”Leading in:Ask students to tell what can cause global warming.Present their ideas to the whole class in groups.Task1: Ask students to read the two letters and try to answer the following questions:1. What are Ouyang Guangs two concerns? Getting some suggestions for what he can do about global warming. As an individual, he can have no effect on environmental problems.2. Does the Earth Care agree with Ouyang Guangs opinion that individuals can have no effect? No.Task2: Ask students to read the letters again and list Earth Cares suggestions.Turn electrical appliances off when not using them.

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