Unit3 Let's live a low-carbon life Lesson12（课件）北京版英语六年级下册

北京版小学英语 六年级下册 Unit3 Let’s live a low-carbon life Lesson12 1 PRE-READING Why do we need a low-carbon life? The Earth is changing all the time and while some of these changes occur naturally, human activity has caused exceptional changes to the planet over recent years. As the global population has rapidly increased, so has the demand for energy, land and water. This places many threats on the biodiversity of our planet. Biodiversity means the variety of living things (such as plants and animals) in an area and how those different things depend on each other to meet their needs. How can we live a low-carbon life? Please make a conclusion. You can answer with pharses or sentences. print on both sides of the paper save paper, save trees don’t leaving the water running when you are brushing teeth turn off the TV when you aren’t watching What is Solar energy? WHILE-READING Read the passage quickly and then tell us what is the passage about? Can you read? There are many kinds of energy（能）, including light, heat, elctricity, and sound. One kind of energy can also change into another. Solar energy Heat from the sun warms the air, land, and sea. Plants use the energy in sunlight to make their own food. We can use solar panels to change sunlight into electricity. Motion energy When things move very fast such as the wind, they generate（产生）a lot of energy. A wind turbine has blades. The blades turn in the wind to drive a generator（发电机）to make electricity. Fuel energy Fuels are rich in energy. Coal, oil, and gas are fuels. We burn them to make light and heat. Fuels come from the remains of dead plants and animals. Task 1 Read and answer 1. Where can people get energy? We can get energy from light, heat, electricity and sound. 2. How can we change sunlight into electricity? We can use solar panels to change sunlight into electricity. 3. What is motion energy? When things move very fast such as the wind, they generate a lot of motion energy. 4. Where does fuels come from? Fuels