Unit 13 We are trying to save the earth. Section A 3a-3c课件2022-2023学年人教版英语九年级全册

Section A 3a-3c 2 To master the new words: shark. fin. cruel. harmful. chain. ecosystem. industry, law, scientific, To master the phrases: be harmful to, at the top(of sth.), take part in, throwaway To learn the sentences: No scientific studies have showed that shark fins are good for health. We should help save the sharks. To be friendly to nature, call for people not ’Finning’ any more. To use reading skill (skimming, scanning, careful reading ) to get the main idea. Objectives 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. really dirty rubbish fish litter waste government close down clean up Review Complete the chart. Problems Solving problems air pollution waste pollution wooden chopsticks or plastic forks rubbish take the bus, subway or ride a bike instead of driving. bring a bag to go shopping. use chopsticks or forks at home. throw rubbish in the bins. 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 河的底部 关闭工厂 清理 参与到做某事中 环境问题 空气污染 扔掉 变成 减少 骑自行车的优点 the bottom of the river close down the factories clean up play a part in doing environmental problems air pollution throw away turn into cut down the advantages of bike riding 木制筷子 塑料口袋 外卖食物 对..产生影响 导致 wooden chopsticks plastic bags takeaway food make a difference to lead to shark fin cruel harmful be harmful to at the top of chain n. 鲨鱼 n. （鱼）鳍 adj. 残酷的；残忍的 adj. 有害的 对......有害的 在......顶部或顶端 n. 链子；链条 New words the food chain ecosystem industry law scientific 食物链 n. 生态系统 n. 工业；行业 n. 法律；法规 adj. 科学上的；科学的 arhks shark n. 鲨鱼 auhfrml harmful adj. 有害的 eucrl cruel adj. 残酷的 yrsdntiu industry n. 工业 cceiiitfns scientific adj. 科学的 Put the letters in corr