Unit 2 Topic 3 Section C 课件 2025-2026学年仁爱科普版（2012）英语九年级上册

该初中英语课件围绕“环保能源”主题，涵盖相关词汇（如technology, renewable）、短语（run out）、句型（如be the first to do sth.）及语法点（require用法、花费表达等）。通过复习旧知（如be a greener person）导入，结合阅读练习、图片匹配搭建学习支架，帮助学生衔接前后知识。 其亮点在于以环保能源为载体，通过对比分析不同能源优缺点（如1c表格）培养思维品质，借助写作任务（2b写能源短文）提升语言能力，提供学习建议（间隔重复、融入生活）指导学习方法。实例丰富如练习题巩固语法，学生能提升综合运用能力，教师可利用结构化资料高效教学。

Unit 2 Saving the Earth Topic 3 What can we do at home to protect the environment? Section C 1 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 1. Some words: technology, wheel, steel, require, German, guide , deep 2.Some phrases: run out 3.Some sentences: (1)In many countries, people produce power from coal, but it is very dirty and causes acid rain. (2)They will never run out so they are called renewable sources. 4.Talk about the advantages and disadvantages of some kinds of energy. Learning aims 1. 做一个环保使者 2. 应该做某事 3. 不应该做某事 4. 代替 5. 节省能量 6. 带一个布包 7. 关掉 停止工作 8. 毕竟 9. 说起来容易做起来难 10. 行动胜于言语 11. 喊着求助 1. be a greener person 2. ought to do sth.= should do sth. 3. ought not to do sth.= shouldn't do sth. 4. instead of (doing sth.) 5. save energy 6. take a cloth bag 7. shut off = turn off 8. after all Revision 9. Easier said than done. 10. Actions speak louder than done. 11. cry for help 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Reading Practice 1. According to the passage, which of the following is TRUE? _ A. The maglev train was built in Shanghai . B. We can take maglev train everywhere. C. Maglev trains cause no noise. D. Maglev trains only have advantages. 2. From the passage, the writer wants to tell us _. A. the disadvantages of using coal B. we should use renewable energy to solve energy problems C. every coin has two sides D. China is good at producing power 3. The underlined phrase “run out” in paragraph 2 means _ in Chinese. A. 用光 B. 跑出去 C. 生产 D. 制作 4. The renewable energy refers to_in the passage. A. Nuclear power B. Maglev train C. Electric vehicle D. Biogas 5. If we put the passage into two parts, which of the following structure is the best?_ A. Para. 1 Para. 2 B. Para. 3 Para. 4 Para. 1 Para. 2 Para. 3 Para. 4 C. Para. 1 Para. 2 Para. 3 Para. 4 C B A D A paragraph 2 paragraph 3 Paragraph 4 1a. Look at the pictures. Do you know what they are? Choose the right picture for each paragraph. 点击蓝色字体看视频 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 1b. Read 1a and match the words with the pictures on Page 48. A. acid rain B. nuclear energy C. biogas A C B Learning 1c. Read 1a again and complete the table. Item Advantage Disadvantage biogas electric vehicle maglev train renewable long process and high cost save energy,no pollution too small to hold many people quiet, quick, energy-efficient, no pollution much more expensive 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Key points 1. be the first/second/- + n. + to do sth. 是第一个做某事的...... be the last + n. + to do sth. 是最后一个做某事的...... eg. China is the first country to realize 5G technology. 2. use sth. to do sth. = use sth. for (doing) sth. 使用某物做某事 3. in+the +年份s/’s 在几世纪几十年代 eg. in the 1980s in the 2010’s 4. require v.需要,需求 1) sth.+ require + (doing) sth. “某事需要被做” 主语是物,用动词ing形式表被动。 e.g. The floor requires cleaning. 2) requre/ need + sth./ to do sth. “需要(做)某物” eg. I requre/need some water. 3) require sb. to do sth. = ask sb. to do sth. 要求某人做某事 eg. My mother asks/requires me to buy some salt for her. Key points 5. cost v. 花费 (cost-cost-cost) sth. cost too much/too little. 译为“花费多/少”。 sth. cost sb. + 钱 (做谓v.时,主语必须是物) eg. The gold watch cost Mrs. Zhou 30 thousand yuan. cost n. 成本 用 high/ low 来修饰。 eg. The cost of the gold watch is too high. = The gold watch costs too much. 6. up to 达到- 7. not only... but also.../ neither...nor.../ either...or... 在连接两个主语时,采用“就近原则”。 eg. Neither I nor he is at school. Either he or you are in the dinning hall. Not only she but also I am on the playground. both...and... 连接主语时,用作复数。 eg. Both I and he are at home. 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Key points 8. hold v.容纳,抓住,举行 hold on, please. 别挂断,请稍等。 eg. 1. Tiananmen Square can hold about one million people. 2. Hold the baby a minute, please. 3. They will hold a meeting to discuss the problem tomorrow. 9. too + adj. + to do sth. 太......而不能...... (常与以下句型作同义替换) not+ adj.(用原句的反义词 )+ enough + to do sth. so + adj./adv. + that 从句 such + (a/an) + ... +n. + that 从句 eg. The dinning hall is so small that it can’t hold fifty people. = This is such a small dinninng hall that it can’t hold fifty people. = The dinning hall is too small to hold fifity people. = The dinning hall isn’t big enough to hold fifty people. 10. It + takes + (sb.) + time + to do sth. 人 + spend + time + on sth. /(in) doing sth. Key points . 人 + spend + money + on sth. /(in) doing sth. 人 + pay + money + for sth. 物 + cost + (sb.) + money 11. one of +可数名词复数 ……之一 12. look for 寻找,强调动作 find 找到,强调结果 find out 发现,查明真相;着重表示通过理解、分析、思考、询问等“弄清 楚”“查明”一件事情,某个情况、事实 eg. we looked for him everywhere,but didn't find him. Please find out when the train leaves. 13. a little , a bit, a lot, much, even, still, rather等修饰形容词时,形容词可用比较级. 14. one(单数)/ ones(复数) 表同类异物。 it /they 表同类同物。 that(单数/不可数)/those(复数) 那个/那些 ,表前面提到的事物,避免重复。 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Key points eg. 1. He has a nice coat and I have a nice one,too. 2. My MP3 is old,but I still like it very much. 3. The food in Chongqing is quite different from that in Guangdong. 15. no= not ...any +不可数/复数名词 no=not...a +单数名词 16. run out /run out of 用完,耗尽 run out 主语为物,且无被动。 run out of 主语为人 eg. Our food has already run out.= We have already run out of the food. 17. reach a speed of+具体速度, 达到某个速度 at a speed of + 具体速度, 以某个速度 18. German n.德国人,德语 (pl. Germans) Germany n. 德国 The sun, wind, waves and heat from deep in the earth are energy sources. They will never run out so they are called renewable sources. In 2011, about 16% of energy used worldwide came from renewable sources. The use of it is increasing rapidly each year. 2a. Read the passage below and match the pictures with the sentences. Then discuss in detail the use of one energy source. Wind can produce electricity in many places. People use sunlight to produce electricity. Sea waves are used for producing electricity. People use hot water or steam from deep in the earth to produce electricity and heat for factories, schools and homes. (2) (4) (1) (3) 13 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 2b. Take notes on your discussion and write a passage with them. You may begin like this: Sunlight can produce a lot of energy. People began to use the energy from the sunlight in different ways many years ago… Sunlight can produce a lot of energy. People began to use the energy from the sunlight in different ways many years ago. We can use it to warm the house in the winter, to heat the water for baths, and to produce electricity. What’s more, we can even use it to run vehicles directly in the near future. As is known to us, the energy from the sunlight has a lot of advantages. For example, it is clean, renewable and non-polluting. Besides, it does no harm to our nature. So we’d better use it as much as possible. You can write it like this: 15 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Exercises in class 1. 使用某物做某事 2.全世界 3.寻找 4.不但...而且 5.太...而不能做某事 6.花费某人多长时间做某事 7.是第一个做某事的...... 8.某事需要被做 9.要求某人做某事 10.达到多少数量 11.用完,耗尽 12. ……之一 13.达到某个速度 14.以某个速度 1. use sth. to do sth. = use sth. for (doing) sth. 2. all over the world 3. look for 4. not only... but also... 5. too + adj. + to do sth. 6. It + takes + (sb.) + time + to do sth. 7. be the first/second/- + n. + to do sth. 8. sth.+ require + (doing) sth. 9. require sb. to do sth. = ask sb. to do sth. 10. up to- 11.run out /run out of 12. one of- 13. reach a speed of+具体速度 14. at a speed of + 具体速度 Exercises in class 1.We all know that learning a language_time and effort. A.requires B.reduces C.removes D.reuses 2.We think human beings may live on the moon in the future. _, no one is sure about it. A.While B.Whatever C.Since D.However 3.-What do you think of your new classmate? -She_has good grades_ is glad to help others. A.too...to B. not only... but also C.both...and D.so...that 4.-Do you take exercise every day? -Yes. It usually_me about half an hour to do that. A.spends B.costs C.takes D.pays 5.-Do you think fresh water can_ on earth one day? -I'm afraid so, if people don't save it. A.take out B.go out C.run out D.put out 6. A farmer in England used animal waste_his car. A.ran B.running C.to run D.runs 7. Electric cars work well,_ they are slow_ can’t run for long. A.and;but B. though; but C. but;and D. because;but 8. It’s necessary _ you to hand in your homework on time . A.of B. for C. to D.with A D B C C C C B 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 Talk about the advantages and disadvantages of some kinds of energy. 1. Some words: acid, nuclear, biogas, straw, renewable, disadvantage, process, electric, best-known, maglev train, per, efficient, path, steel, wave, source, worldwide, sunlight, steam, technology, require, German, wheel, guide, deep 2. Some phrases: run out 3. Some sentences: (1) In many countries, people produce power from coal, but it is very dirty and causes acid rain. (2) They will never run out so they are called renewable sources. Summary We learn: We can: 1. Read 1a. 2. Memorize the useful expressions and key sentences which we learn today. 3. Finish Section C in your workbook. 4. Write a passage about one of the energy sources in 2a. Homework 初中阶段是奠定英语能力的关键期,克服学习障碍,创建情景对话能有效提高应试能力。此外需要选择适合自己水平的材料。跨文化交际需模仿标准发音能有效培养毅力。深层次看,间隔重复比集中死记更有效。针对初中阶段,编写故事能有效增强抗压能力。核心在于,将学习融入日常生活场景。最佳实践是,建学习博客能有效激发学习兴趣。值得强调的是,定期反思调整学习方法。持之以恒地实践这些方法定能取得显著进步。 129363.18 $