(
课件网) Unit 13 We're trying to save the earth. 人教新目标版 九年级上 SectionA 2d Grammar Focus-4c公开课 Learning objectives 1. 在语境中理解、识记并运用本课时词汇：take part in,afford,turn off,reusable,pay for,take action, transportation 等。 2. 能正确区分和使用以下语法结构：现在进行时、used to、被动语态、现在完成时、情态动词。 3.能够用与污染相关的词汇，对环境污染和环境保护进行简单描述。 4. 能够总结环境问题及其原因并提出简单的建议，提升对人与自然关系的认识。 Warming up What’s happening to the earth It is suffering from pollution. noise pollution water pollution air pollution light pollution soil /land pollution What should we do to save the earth What causes the water pollution People throw rubbish into the river. What can we do to solve it Factories put the waste into the river. We can help to clean the river The government should make serious laws about water protection. The government should close down the factories. We should save water. Discussion What causes the land pollution There is too much rubbish and waste. People are throwing away things everyday What can we do to solve it People use too many plastic bags. We can bring our own bag when we go shopping. We'd better not use wooden chopsticks or plastic bowls when we buy takeaway food. We can help to clean up the streets or parks. We should throw the rubbish into the bins. What causes the air pollution Factories that burn coal also pollute the air with a lot of black smoke. What can we do to solve it There are more and more cars on the road. They give off the waste gas into the air. We can walk or ride the bike, take the bus or subway instead of driving the car. We can plant more trees. The government should close down the factories. Let’s talk about the things we can do to help. New drills Read the conversation in 2d and fill in the chart. Pollution Ways to solve the problem Air pollution Waste pollution Ride a bike, take the bus or subway instead of driving. Bring a bag to go shopping. Don’t take wooden chopsticks or plastic forks when you buy takeaway food. Throw rubbish in the bins. Interviewer: Jason and Susan, what are your ideas for solving these problems Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving. Susan: Yeah, or ride a bike. There are other advantages of bike riding. It’s good for health and it doesn’t cost anything! Interviewer: Great ideas! What about waste pollution 减少；砍倒 Role-play the conversation. 2d Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago. Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home. Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone. Interviewer: So together, our actions can make a difference and lead to a better future! remember to do sth. 记得去做某事 有作用； ... ...
