Unit 2 Topic 3 What can we do at home to protect the environment? Section C 课件（33张PPT，无音视频）

课件33张PPT。Unit 2 Saving the EarthTopic 3 What can we do at home to protect the environment? Section C Wind is used for producing electricity in many places.Look at the following pictures and guess the meaning of the underlined word. electricity n. 电，电流Nuclear power is clean but it is very dangerous.Look at the following pictures and guess the meaning of the underlined word. nuclear 原子核的，原子能的 …people produce power from coal, but it is very dirty and causes acid rain.Look at the following pictures and guess the meaning of the underlined words.power n.动力，力量 acid rain 酸雨electric (adj.) — electricity (n.) Look at the following pictures and guess the meaning of the underlined words.It’s an electric car. It works well, but its disadvantage is that it’ slow and Can’t run for long. It’s a maglev train. Its advantages are quiet, fast and clean, but it’s too expensive. 磁悬浮列车n.技术Do you know it ?China is one of the first countries in the world to use biogas technology . 沼气Read and remember these words. power acid rain nuclear renewable electric biogas电力； 动力；力酸雨原子核的， 原子能的； 核动力的可更新的电动的， 用电的沼气 Match the words with the pictures on Page 48 (1b).A. acid rain B. nuclear energy C. biogas ACBadj.原子核的， 原子能的酸雨1a Read and understand. Look at the pictures. Do you know what they are? Choose the right picture for each paragraph. paragraph 2 paragraph 3 Paragraph 4Read Paragraph 1 again, and then mark True (T) or False (F). ( ) It’s good that people produce power from coal. ( ) Nuclear power is dangerous. So we can’t use it. ( ) To solve the energy problem, people all over the world are looking for new ways to produce power. Paragraph 1In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. However, nuclear power can be very dangerous. To solve the energy problem, people all over the world are looking for new ways to produce power.Paragraph 1Read Paragraph 1 again, and then mark True (T) or False (F). ( ) It’s good that people produce power from coal. ( ) Nuclear power is dangerous. So we can’t use it. ( ) To solve the energy problem, people all over the world are looking for new ways to produce power. TFTParagraph 1Paragraph 2What do farmers use to make biogas? It is the biogas perfect ? Why? China is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in people’s everyday lives. Its key disadvantage is that the process requires a long time( up to 30 days) and the cost is highParagraph 2Paragraph 2What do farmers use to make biogas? It is the biogas perfect ? Why? They recycle straw, grass, and animal waste to make biogas.No, it isn’t. Because its key disadvantage is that the process requires a long time (up to 30 days) and the cost is high.Paragraph 3 Electric vehicles were _____ in the 199 ... ...