高一英语 Module6 Unit Four

高一英语Module6 Unit FourGlobal warming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 expressionsTo grasp the grammar—how to use “it” for emphasis in 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-upLeading 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.3. fill in a form: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 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 becoming warmer and warmer.non-renewable natural gas renewable the sea (tidal energy)renewable hot springs or geysers renewable plant waste (biomass energy) renewable water (hydro-electric power) non-renewable uranium (nuclear energy) Renew able /non-renewable Sources of energyPeriod 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 activity—burning of fossil fuelsGreenhouse effect—greenhouse gases—we 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 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. What do they think about global warming? Do they agree with one another?They don't 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 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 questionPart two ( para2-3 )Illustrate(explain) how global warming comes about.Skills : giving examples, using graphs, explanationPart three ( para4-8 )List two different attitudes among scientists towards global warming.Skills : giving examples, making contrast (comparison)Part four ( para9 )It’s 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 becoming warmer, in your opinion, does it matter? If it does, as a 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 Guang’s 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 Guang’s opinion that individuals can have no effect?No.Task2: Ask students to read the letters again and list Earth Care’s suggestions.Turn electrical appliances off when not using them.Don’t turn up the heat, put on more clothes.Walk or ride a bike, don’t drive.Recycle.Buy things made from recycled materials.Buy products that use less energy.Plant trees.Talk with family and friends about global warming.Task3: Ask students to discuss these questions:In what ways would you talk with your family and friends about global warming? StepII: WritingCollect information according to the students’ discussion.Get the students to organize their ideas into several sentences. Then shorten the sentences so they become phrases.Ask students to write a poster with an eye-catching heading according to the example of how to present a poster.Sample writing for a poster:Show the students some postersStepIII: ListeningLanguage points: ( Reading )1.What do you think green house gases do?本句中think后接了一个由what引导的宾语从句。