Unit 6 Earth First Starting out 课件-2024-2025学年高一外研版（2019）英语必修第二册

Unit 6 Earth first Starting out 1 When it comes to the earth, what's your first impression? Have you noticed some serious problems the earth is suffering from? water pollution air pollution plastic pollution global warming waste disposal废物处理 soil pollution What environmental problem does each picture refer to? overpopulation deforestation 1. Watch the video and answer the question. ①_______square kilometres of forest disappear every year. ②Around _______ trees are cut down each day just to make toilet paper. ③Each day, around _________ species of plants and animals become extinct—nearly ________ times the natural rate of extinction. ④Over ____________ animals are killed by ocean pollution each year. ⑤__________ people don’t have clean drinking water. ⑥A plastic bottle can take ______ years to break down. ⑦The ice caps are more than ______ thinner than they were _____ years ago. Q1. Listen and complete the missing numbers. Q2: Which of the facts in the video do you find most alarming(令人担忧的)? 130,000 25,000 150 to 200 1,000 1 million 1 billion 450 50% 40 5 2. Which of the facts in the video do you find most alarming? Deforestation Species’ extinction Ocean pollution Shortage of fresh water Plastic pollution Loss of glaciers Q2: What does the video want to tell us? We are facing severe environmental problems. If we do not change our way, the animals and plants will be gone, and we be gone to. It is time for everyone to take action now and make our planet a greener and safer place for our future generation. www.515ppt.com 7 3. Look at the cartoons and answer the questions. water pollution deforestation air pollution global warming Q1: environmental problems? Q2: causes of the problems? Q3: solutions to the problems? Look at the cartoons and answer the questions. 2. What are the causes of these problems? water pollution deforestation air pollution global warming industrial pollution, harmful chemicals in sewage, no advanced technology... profits of the tree, increased demand for wood products... traffic emission, fossil fuel burning... human activities, more fossil fuel burning... www.515ppt.com 9 Acer (A) - Look at the cartoons and answer the questions. 3. What do you think is the most serious environmental problem we face today? What should we do to help solve it? Measure individuals government water pollution deforestation air pollution Ocean pollution ...... The earth is our home and we have the duty to... It is very necessary for us to take action to solve our environmental problems. We can... It’s urgent to do... www.515ppt.com 10 Acer (A) - Look at the cartoons and answer the questions. 3. What do you think is the most serious environmental problem we face today? What should we do to help solve it? individuals It is very necessary for us to take action to protect the environment. We should improve our awareness of protecting environment. We can lead a green life. For example, we can ride a bike or take public transportation instead of driving a car. We can set an example for these who are around us. www.515ppt.com 11 Acer (A) - Look at the cartoons and answer the questions. 3. What do you think is the most serious environmental problem we face today? What should we do to help solve it? government It is very necessary for government to make laws to protect environment. It is urgent for government to raise people’s awareness of protecting environment. For example, combine environmental protection with education, and organize some activities about environmental protection. www.515ppt.com 12 Acer (A) - Dealing with global warming Share what you know about these expressions. water conservation LED bulb renewable energy carbon footprint greenhouse effect reusable water bottle Activity 4 (P88) adj. 可更新的，可再生的，可续订的 n. 可再生资源 adj. 可重复使用的 carbon footprint A carbon footprint is the amount of greenhouse gases- primarily carbon dioxide主要由二氧化碳 released into the air by a particular human activity. For example, when you drive a car, the engine burns fuel which creates a certain amount of greenhouse gases. When you heat your house with coal or electricity, you also generate greenhouse gases. Even the production of food and goods emits(排放) some quantities of greenhouse gases. Together these emissions make up a carbon footprint. Complete the brochure with the expressions. reusable water bottle carbon footprint renewable energy LED bulb Water conservation greenhouse effect Activity 5 What can we do to help deal with global warming? reduce, reuse, repair & recycle take more public transport turn off the taps when we find the water running turn off the lights if we are the last to leave a room ... THANK YOU! Lavf56.40.101 Tencent APD MTS $$