Unit 13 Section B (3a-self check)（讲解课件）-【优翼·学练优】2025-2026学年九年级英语下册同步备课（人教版）

该初中英语课件聚焦九年级下册Unit 13“保护环境”主题，涵盖写作（书信）及语言知识巩固。课堂通过3a分析本地环境填表，区分优劣环境及原因，搭建生活与学习的联系，作为写作支架衔接前后知识。 其亮点在于以语言能力培养为核心，通过Writing Tips指导聚焦单问题详细写作，Sample Writing提供书信格式与内容范例，提升表达准确性。结合思维品质培养，3b引导分析问题原因并提建议，如垃圾处理问题及解决办法，增强解决问题能力。词汇语法练习巩固知识，助力学习能力提升。学生能提升语言运用与思维，教师可借助结构化资源高效教学。

优翼英语教学课件（RJ） Go for it! 九年级（下） 1 Section B (3a-Self Check) Unit 13 We’re trying to save the earth！ Presentation 3a Think about the environment in your town/city and complete the chart below. Which parts of the town/city have a nice environment? Why are they nice? Which parts need to be improved? Why? Good environment Why? Bad environment Why? Sample Good environment Why? Bad environment Why? Central Park clean, fresh air, full of green plants, quiet and peaceful rubbish disposal areas at the bottom of apartment blocks rubbish spilling out of the bins, bad smells, unhealthy, full of pests （害虫） 3b Write a letter to the city mayor about the problems and your suggestions. In your letter, describe the environmental problems in your town/city. What are the problems? Where are they? What or who is causing these problems? Then, give suggestions or possible ways to solve the problems. I think that ... We should/could ... I suggest ... 市长 Writing Tips 1. 体裁：应用文（书信） 2. 话题：保护环境 3. 时态：一般现在时 4. 人称：以第一人称为主 Less is more It might be better to focus on one problem and write about it in detail instead of writing about many problems and not providing enough details. Writing tips Write a letter about the environmental problems and your suggestions. 1. What are the problems? 2. Where are they? 3. What or who is causing these problems? 4. How can we solve the problems? 5. Say your hope. Everyone in this town should play a part in cleaning it up. To cut down air pollution, we should take the bus or subway instead of driving. The river used to be so clean. Let’s take action now! All these small things can add up and become big things that can improve the environment. Good sentences Sample Writing Dear Sir/Madam, I have lived in this town ever since I was born and I love this town very much. 时态用一般现在时,以第一人称为主 注意书信的格式 多种句型陈述问题 I think that there are beautiful areas in this town, but there are also areas that aren’t attractive, like the rubbish disposal areas at the bottom of our apartment blocks. There is rubbish coming out of the bins, and flies, cockroaches and rats running all over the rubbish. It is unpleasant to look at, smelly, and it makes the environment very unhealthy. The problem is that the rubbish collectors do not come often enough to collect the rubbish. The people living here may also be throwing away too much rubbish. We could try to ask people to produce less rubbish. I suggest that rubbish collectors collect rubbish more often as well. 提出产生问题的原因，并给出建议 I believe that a better environment can be created in this town and we should all work together to achieve it. Yours faithfully, Wang Xi 注意书信格式 提出希望和号召 Self Check 1. Write different forms of the words. Then add more to each group. v. — n. n. — adj. pollute— fame— act— wood— protect— science— inspire— health— build— south— create— care— pollution famous action protection inspiration building creation creativity wooden scientific healthy southern careful adj. — n. adj. — adv. different— slow— important— wide— sudden— real— difference importance slowly widely suddenly really Add more words to each group. v.—n.: educate—education, meet—meeting, paint—painting n.—adj.: wool—woolen, north—northern, wind—windy adj.—n.: silent—silence, patient—patience, absent—absence adj.—adv.: actual—actually, quick—quickly, sure—surely 2. Match each statement with the grammar structure. Statement Grammar The river used to be so clean. Present progressive We have seen many changes in the environment. Modal verbs People should take public transportation more. Passive voice The river is polluted by factories. used to The air pollution is getting worse and worse. Present perfect 3. Write ways to cut down on these kinds of pollution. Kinds of pollution Ways to cut down water pollution land pollution noise pollution air pollution Kinds of pollution Ways to cut down water pollution land pollution noise pollution air pollution ask factories not to throw waste into the rivers; remind people not to litter ensure that factories dispose of industrial waste in a responsible way; try not to use plastic bags when shopping build airports away from places where people live encourage people to use public transportation instead of driving; reduce the number of factories that burn coal Homework Preview Unit 14 Section A (1a-1c). Do the exercises in students’ book. Thank you! 本文件著作权为创作公司所有, 仅限于教师教学及其他非商业性和非盈利性用途。如发现盗用、转卖、网络传播等侵权行为, 本公司将依法追究其相应法律责任。 部分素材选自网络, 如有争议, 请联系删改。 声 明 $