Unit 13 Section A 1a-2d课件-2024-2025学年人教版英语九年级全册

Unit 13 We're trying to save the earth! Section A 1a-2d Why has our earth changed a lot? What kind of pollution do you know? Water pollution What causes water pollution? What will happen if water is polluted? put waste into the river throw litter into the river shipping What will happen if water is polluted? Humans will get sick. Kill or do harm to animals. Air pollution What causes air pollution? What will happen if the air is polluted? burn coal cars on the road/ vehicle emissions Land pollution What causes land pollution? landfill 填埋场 What will happen if our land is polluted? Noise pollution What causes noise pollution? What will happen if there is too much noise? It's really important and extremely urgent to protect our earth! What should we do to reduce(减少）the pollution? water pollution land pollution air pollution noise pollution Problems: What was the problem? The river was ___________.Even the bottom of the river was full of _________. There were no more _____ for fishermen to catch. 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. Let’s listen and fill in the blanks. 1b really dirty adj. n. rubbish n. fish n. litter n. waste n. government v. close down v. clean up Reasons: Solutions: Key phrases重点短语 1.扔垃圾到河里面 2.向河里排放废弃物 3.关闭工厂 4.清理河道 5.塑料袋 6.一次性筷子 7.塑料碗 7.公共公园 8.乱扔垃圾 9.烧煤 10.把......变成...... 11.全是垃圾 12.为......出力/扮演......角色 throw litter into the river put waste into the river close down factories clean up the river plastic bags wooden chopsticks plastic bowls public parks litter in/throw away rubbish burn coal turn ...into... be full of rubbish play a part/role in doing sth Listen and circle the pollutions they talk about. A. land pollution B. air pollution C. noise pollution D. water pollution 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. 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 ones. What things are people throwing away every day? cars pollute are throwing public places What's the relationship between speakers? A. teachers and students B. classmates C. interviewee and interviewer What are they going to talk about next? Role-play the conversation. 2d advantage n.优点；有利条件 （反）disadvantage 缺点 减少，砍倒 How many solutions do they provide? What are they? make a difference to对...有作用或影响 外卖食物 All the small things can add up and become bigs things that would improve the environment! Let’s talk. How can we save the earth? Alan waste pollution We should ______________ William throw litter into the bin Let’s talk. How can we save the earth? Alan We should _________________. William waste pollution take our own bags when shopping Let’s talk. How can we save the earth? Alan air pollution We could _______________ William stop riding in cars Let’s talk. How can we save the earth? Alan We can____________________ William turn off the lights when we leave a room Let’s talk. How can we save the earth? Alan We may ____________ ______________________. William recycle books and paper Let’s talk. How can we save the earth? Alan We should ____________ _____________________ ____________________. William turn off the shower while we are washing our hair waste pollution save electricity save water air pollution recycle books and paper Saving the earth begins with small things! From the easiest(1) to the most difficult(5). reusable bags 1. Judy is a six-year-old girl, what things she can do to save the earth? A. She should drive the car to school. B.She should turn off the lights when she leaves a room. C.She should close down some factories to reduce water pollution. 2. Nancy is a mother with short hair.what things she can do to save the earth? A. She can use reusable bags while shopping. B. She would never turn off the shower while washing her hair. C.She can recycle paper and books for her kids. Fill in the blanks with the appropriate modal verbs from the box. 4b can would could have to should must may/might People __________ think that big things ____________ be done to save the earth. Many forget that saving the earth begins with small things. For example, you ________ save electricity by turning off the lights when you leave a room. You ______ also use reusable bags instead of plastic bags.I think it’s a great idea that you now _______ pay for plastic bags in some stores. And instead of driving to school or work, you ___________ ride your bike or walk. If it’s far, you _____take the bus. All these small things ____add up and become big things that __________ improve the environment. Let’s take action now! may/might must/have to/should can/could/should can/could/should have to can/could/should can/could can/could would/can/could 根据书本内容，完成环境污染信息的收集表格 全品 Let’s report. Next, let’s welcome ...and ..., the environmentalists from Prime School, to give us more points of views. Pollution Causes Result Solution Water pollution factories put waste water and litter into the river... Many animals are in great danger... As a student,... Write to the government to... Air pollution ... We want to talk about air pollution. Air is polluted by cars on the road...... Everyone should play a part in environmental protection. We should... $$