仁爱版九年级英语上UNIT2 TOPIC3 SECTION C课件.pptx

Unit 2 Saving the EarthTopic 3 What can we do at home to protect the environment? Section C Are you a greener person?How can we become a greener person?Turn off the lights when we leave a room.Walk or ride a bike instead of taking a bus or a taxi.Take a cloth bag when we go shopping. Don’t drive a car if you travel a short distance. Write on both sides of the paper. Don’t use the things that can be used only once. After we wash faces, we can use the water to wash clothes. Turn off the TV set while we are away. …Do you know them?It’s an electric car. It works well, but it’s slow and can’t run for long. electric (adj.) — electricity (n.) Do you know it ? It’s a maglev train. Its advantages are quiet, fast and clean, but it’s too expensive. 磁悬浮列车Do you know it ?China is one of the first countries in the world to use biogas technology . n.技术沼气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 41b Read 1a and match the words with the pictures on Page 48.A. acid rain B. nuclear energyC. biogas adj.原子核的，原子能的酸雨ACBRead Paragraph 1 again, and then mark True (T) or False (F). 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. TTParagraph 1Paragraph 2Its key disadvantage is that the process requires a long time (up to 30 days )and the cost is high.它最大的缺陷是生产过程需要很长时间（长达30天）和成本高。process n.步骤，过程 v.加工，处理requirev.需要，需求require 有两种用法： *require (doing) sth. 表示主语“该...了”。 如： The floor requires washing. 地板该洗了。 *be required to do sth.表示主语必须（被要求）...如:Students are required to attend classes. 学生必须按规定上课。 Paragraph 3develop, electric, name, save, large Electric vehicles were __________ in the 1990s. On April 11, 2010, a new kind of electric vehicle _______ “Yezi” was shown in the 2010 Shanghai World Expo. It produces _________ from t