Unit 6 Starting out & vocabulary & Listening （ppt课件）-2023新外研版（2019）《高中英语》必修第二册.zip

Starting out&Vocabulary&Listeningbulbrenewablecarbongreenhousereusablen.灯泡灯泡adj.(能源能源)可更新的，可再生的，可更新的，可再生的，可恢复的可恢复的n.碳碳n.温室，暖房温室，暖房adj.可再度使用的，可多次使用的可再度使用的，可多次使用的brochurereducesolarreleasen.小册子小册子v.减少，降低减少，降低adj.利用太阳光利用太阳光(能能)的的v.释放，排放释放，排放smogfogsevereinfectionlecturepermissionsliden.烟雾，雾霾烟雾，雾霾n.雾雾adj.(问题、伤势、疾病等问题、伤势、疾病等)很严重的很严重的n.感染，传染病感染，传染病n.(尤指大学里的尤指大学里的)讲座，讲讲座，讲课，演讲课，演讲n.允许，许可允许，许可n.幻灯片幻灯片Do you know what June fifth is?World Environment DayWorld Environment Day is celebrated annually on 5 June and is the United Nations principal vehicle(主要策略主要策略)for encouraging awareness and action for the protection of the environment.First held in 1973,it has been a platform for raising awareness on environmental problems.Now lets watch a video to find the answer.What are the problems the earth is facing?What are the problems the earth is facing?Forest disappearingSpecies extinctionOcean pollutionLack of clean drinking waterPlastic pollutionThinner ice caps 1.Which of the facts in the video do you find most alarming?2.What does the video want to tell us?Save Life on EarthEarth,home to countless plants and animals for millions of years,has an uncertain future.How many of us are aware that.130,000 square kilometres of forest disappear every yeararound 25,000 trees are cut down each day just to make toilet papereach day,around 150 to 200 species of plants and animals become extinct-nearly 1,000times the natural rate of extinctionover 1 million animals are killed by ocean pollution each year1 billion people dont have clean drinking watera plastic bottle can take 450 years to break downthe ice caps are more than 50%thinner than they were 40 years agoIf we do not change our ways,we are at risk of ruining our planet and destroying manymore plants and animals.Some day in the future,there may be no tigers,no horses,nobutterflies,no dolphins and no whales nor will there be any trees or flowers.All of these things will be gone.And we will be gone,too.Time is running out.Our planet needs our help.Its up to us to decide together what happens next.Watch the video again and check your answers!What environmental problem does each cartoon refer to?Water pollutionDeforestationAir pollutionGlobal warmingWhat are the cause of these problems?Useful words and expressions excessive human activites,ignore,lack of,cause/lead to,peoples awareness of environmental protection,fossil fuel burning.What do you think is the most serious environmental problem we face today?What should be done to help solve it?Useful expressions:replace,invest,recycle,carpooling(拼车拼车),classification of waste,green/clean energy,environmentally friendly lifestyles environmentally friendly lifestylesWalk or ride a bike whenever possibleChoose organically grown fruits and vegetablesPlant more treesUse as less disposable cutlery as possibleBring your own reusable bags Cut down your energy useYou can reduce the amount of waste you produce.You can reuse the plastic bags rather than just throwing them away.Many items that you use can be recycled.Repeat these three words daily:reduce,reuse and recycle.Lets enjoy a videoDo you know the three Rs of the environment?Self-Self-evaluationevaluation1.Can you describe what problems the earth is facing and what the causes are?2.Can you describe the most serious environmental problem we face today?What should be done to solve it?3.What can we do for the environment?Global warmingWhat environmental problem does this cartoon refer to?What do you know about global warming?Global warming is the long-term warming of the planets overall temperature.Greenhouse effect is an important and main cause of global warming.The earth has some very important gases in the atmosphere that keeps us warm.When the sun heats the earth,these gases keep the heat on the earths surface.In a way,the earth is like a greenhouse.But if the greenhouse effect becomes stronger,it could make the earth warmer than usual.Even a little extra warming of the earth may cause problems for humans,plants and animals.What are the impacts of global warming?increase in extreme weathermore droughts and wildfires rising sea levelless snow and iceWhat can we do to deal with global warming?Share what you know about these expressions.water conservationLED bulbrenewable energycarbon footprintgreenhouse effectreusable water bottleComplete the brochure with the expressions in Activity 4.reusable water bottlecarbon footprintrenewable energyLED bulbWater conservationgreenhouse effectWork in pairs.Discuss what you can do to help deal with global warming,using the words and expressions you have learnt.A:I will go to school by bike to reduce my carbon footprint.B:I will bring a reusable bag when I go shopping.Listening and Speaking-Environmental problems to be solvedEarth firstSmog comes from the words“smoke”and“fog”,and it is used to describe the air pollution in cities caused mainly by traffic and factories.Smog can be dangerous because it causes severe breathing problems and infections.Did you know?What do you know about smog?Listen to the lecture and choose the topics that are covered.1 What the word“smog”means.2 When the word“smog”appeared.3 What caused smog in the past.4 What causes smog now.5 The effects of smog on the environment.6 How governments try to reduce smog.7 What will happen if we dont reduce smog.Sorry，容量限制，容量限制，听力请自行插入听力请自行插入1900srequirements of paying to driveThe Great Smogno windchemicalschemicals coming from trafficP67 8Listen again and complete the slides.Tapescript Lecturer:Good evening,everyone,and thank you for coming to todays talk.Im Dr Brown and Im going to talk about air pollution in cities-what we all know as“smog”.Please feel free to stop me if you have any questions.So,first of all,a bit of history.The term“smog”was first used in the 1800s in cities that had problems with smoke and fog.Student A:Sorry for interrupting,but I believe it was in the 1900s.Lecturer:Sorry,I made a mistake.You are right.It was in the 1900s.Thank you.London was one of the cities where smog caused big problems.In December 1952,it suffered from“The Great Smog”.It was a very cold winter,so a lot of coal was burned at home and in the factories.The problem was that there was no wind,so thick smog covered the city.Nowadays.Student B:Excuse me,but can I just ask-did the smog cause any death?Lecturer:Im afraid so.According to research,about 4,000 people are known to have died as a result of the smog,but that number could much higher.It was terrible!Nowadays,smog till exists,but is produced by chemicals coming from traffic and factories.However,governments are taking measures to reduce smog as much as possible.Now,lets look at what smog does to our health.Student A:If I could just stop you again.Can you give us examples of these measures?Lecturer:Well,for example,factories must follow rules about what chemicals they use.In some cities,when theres smog,people have to pay to drive in the centre.Now,lets move on to the impact of smog on our health.Listen again if necessary.Useful expressions:1.Sorry for interrupting,but 2.Excuse me,but can I just ask.?3.If I could4.Can you?What do the students say to interrupt the lecturer politely?The classification of household waste aims to help people separate different types of waste.This is important because these different types of waste can be disposed of or recycled appropriately and effectively Household waste can be roughly divided into:*food waste *non-recyclable waste *recyclable waste,including paper,glass,plastic and use batteries China plans to introduce household waste classification and sorting in the first batch of cities by 2020.Only Beijing,Shanghai,Tianjin and Chongqing are included in the first batch.The target recycling rate in these cities has been set at 55%by 2020.Student AWork in pairs and talk about recycling.Tell Student B about recycling using the information below.Be prepared to be corrected by Student B.Student B Used batteries are usually regarded as non-recyclable waste and should be disposed of separately.The first batch of cities to introduce household waste classification and sorting includes Beijing,Shanghai,Tianjin,Chongqing and all capitals of provinces and autonomous regions.The target recycling rate in these cities has been set at 35%by 2020.Listen to Student A talking about recycling.Interrupt politely to correct him/her using the following information:Think about another environmental problem and then make a similar conversation with your partner.