人教九年级全一册Unit13SectionA1a-2d课件

The earth song We’re trying to save the earth! 我们正在竭尽全力拯救地球! try to do =try one’s best to do 努力去做某事。 e.g. Every student should try to study hard in order to study in a university. 为了进入大学学习，每个学生都应该 努力学习。 air pollution The factories that burn coal pollute the air with a lot of black smoke. n. 煤炭 Factories put waste into the river. water pollution noise pollution There are more cars on the road. 1a Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. noise pollution ____________ ____________ ____________ ____________ air pollution ___________ ___________ ___________ ___________ water pollution ____________ ____________ ____________ ____________ loud music planes mobile phones factories cars smoking ships factories littering rubbish building housesbuilding houses loud music cars rubbish planes littering ships factories smoking building houses mobile phones litter v. 乱扔 n. 垃圾 rubbish waste 垃圾，废弃物 People should throw away litter in the bin. n. 垃圾箱 1b Listen and complete the sentences. What was the problem? The river was _____________. Even the bottom (底部) of the river was full of _________. There were no more ______ for fishermen (渔民) to catch. really dirty rubbish fish What caused the problem? People are throwing _______ into the river. Factories are putting ______ into the river. How should the problem be solved? We should write to the ____________ and ask them to ___________ the factories. Everyone should help to __________ the river. litter waste government close down clean up Listen again and check (√) the sentences you hear. 1. We could go fishing in the river. 2. The river was really dirty. 3. The river has always been the nicest river in this town. 4. We should ask the teachers for help. √ √ 1c The river was dirty. Even the bottom of the river was full of rubbish. But it used to be so clean! Yes, but people are throwing litter into the river. Everyone in this town should play a part in cleaning it up! 1. Everyone in this town should play a part in cleaning it up! play a part in 在……方面起作用 e.g. A good diet plays a large part in helping people live longer. 健康的饮食在帮助人们长寿方面起着 非常大的作用。 play a part 在……中扮演角色 e.g. He was invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution 2b Listen again and complete the sentences. 1. The air is badly polluted because there are ___________ on the road these days. 2. Factories that burn coal also ________ the air with a lot of black smoke. more cars pollute 3. There is also too much rubbish and waste. People _________________ things every day. 4. People are also littering in ______________ like parks. This is turning beautiful places into ugly (丑陋) ones. are throwing away public places 1. Who is the interviewer talking to? 2. What are they talking about? 3. What other problems do they see? Susan and Jason. The environmental problems. There’s too much rubbish and waste in the streets. Role-play conversations between Jason and Susan.2c The air has become really polluted around here. I’m getting very worried. Yes, I used to be able to see stars in the sky. The problem is that… The earth is badly polluted. What should we do to save the earth? Let’s take action (采取行动) Take buses instead of driving cars. Recycle books and paper. Turn off the lights when you leave a room. People should throw away litter in the bin. 1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a.