Unit 8 Lesson3 The green miracle.课件 2025-2026学年冀教版英语八年级上册

该初中英语课件围绕“环境保护”主题，聚焦塞罕坝绿色奇迹，核心知识点包括环保话题的语言表达及动词不定式用法（表目的、接动词后等）。课堂通过荒地与绿山图片对比、塞罕坝视频导入，以问题链（差异原因→塞罕坝概况→时间线发展）搭建学习支架，引导学生逐步深入主题。 亮点在于融合文化意识与语言能力培养：以塞罕坝案例为载体，通过时间线梳理、细节阅读（如369位林业工人半个多世纪奋斗）提升思维品质，结合动词不定式练习（填空、对话补全）强化语言运用；视频资源与可选作业（搜索塞罕坝故事）激发学习兴趣，教师可整合多元素材，学生能增强环保责任感与跨文化沟通能力。

Protecting the environment Unit 8 Lesson 3 The green miracle /ˈmɪrək(ə)l A What’s the difference between the two pictures? The first picture shows a deserted(荒无人烟的) land. The second one shows green mountains and trees, and a clear blue sky, it’s more beautiful. Look at the pictures and answer the questions. Look and answer B What do you think led to the difference? Maybe people planted many trees to change it. Also, they did more to protect the environment. Look at the pictures and answer the questions. Look and answer Watch the video ：How much do you know about Saihanba(塞罕坝)? Watch and answer Lead-in What do you know about Saihanba from the video? Saihanba is very beautiful now. There are many animals and birds in Saihanba. Saihanba is located in the far-northern part of Hebei Province Think and answer the question. Now, Saihanba is the largest human-made forest in the world. Listen and pay attention to new words. Then answer the questions. Where can you read this passage? A. a science fiction novel B. a travel guide book C. an environmental protection magazine What’s the order of this passage？ time order Listen and answer Read the passage and complete the timeline. Read and complete to change this dead land into a forest hardly see the largest human-made forest A How many foresters carried out the task? 369 foresters. B How was the working conditions? It was so harsh and the weather was so bad. c What did foresters do to change Saihanba? The foresters carried on , overcoming the challengesof the land.They used science and technology to help trees to survive harsh conditions. D How long did it take them to complete the task? For more than half a century. Listen and answer Read the passage again and answer the questions. Read and answer What is Saihanba like now? What did Saihanba Spirit inspire the foresters to do? It inspired them to complete the difficult task. Listen and answer Read the passage again and answer the questions. Read and answer The Saihanba Spirit means working hard with perseverance(坚持) to change wasteland(荒地) into green forests and protect the environment together. Read the sentences and pay attention to the parts in yellow. Read and think ● To carry out the task, the government organised a group of 369 foresters. ● The Saihanba Spirit inspired the foresters to complete the difficult task. inspired sb. to do sth. 接宾语后再跟to do 说明做某事的原因或目的 Read and learn We use the to-infinitive to express purpose(目的). We also use the to-infinitive after certain verbs. Some verbs are followed by a direct object（直接宾语） and then the to-infinitive. 用法 例词 否定形式 例句 表目的 直接跟在动词之后 借助助动词：don’t/ doesn’t/ didn’t+实义动词+to do sth. 接宾语后再跟to do 实义动词+宾语+ not to do sth. want, hope, plan, decide, agree, wish, learn, try, choose To improve math, I do exercises every evening.为了提高数学成绩，我每晚都做题。 I hope to visit my grandparents this Sunday.我希望这周日去看望爷爷奶奶。 ask, tell, teach, invite, advise, 动词不定式的三种常见用法 Complete the table based on the provided information. Read and complete The teacher asks us to hand in homework on time.老师要求我们按时交作业。 Choose and fill 1 I study hard ____________ my grades. 2 She exercises daily _________ fit and healthy. 3 We can ask our family members ___________ water. 4 They save money _________ a new car. 5 _________ the morning train, they get up very early. 6 I expect her _________ a skilled musician. to improve to stay not to waste to buy Fill in the blanks with the correct forms of the verbs. waste catch become improve buy stay To catch to become 1. We need ________ (plant) more trees ________ (make) the air cleaner. 2. My parents asked me __________ (finish) my homework before 9 p.m. 3. I got up early this morning __________ (catch) the first bus. 4. She hopes __________ (travel) to the UK with her friends next summer. 5. The teacher told the students __________ (not talk) loudly in the library. Fill in the blanks with correct forms of the verbs. to plant to make to finish to travel Practice to catch not to talk Read and complete Jenny: Do you know about Saihanba? Li Ming: Yes. It used to be a deserted land around the late 1950s. Jenny: Really? That's hard to imagine. What happened next? Li Ming: ______ the government organised many foresters and started planting trees. Jenny: Did they meet any difficulties? A. to survive harsh conditions B. to visit it someday C. To change the situation C Read and complete the conversation. Read and complete Li Ming: Of course. The working conditions were so harsh and the weather was bad. But scientific and technological methods helped trees ______. Jenny: How brave the foresters were! What is Saihanba like now? Li Ming: Nowadays, Saihanba is not only the largest human-made forest but also a popular tourist spot. Jenny: Wow, I want ______. A Read and complete the conversation. B Homework Required homework： 1. Finish the exercises about this lesson. 2. Recite the words and expressions in lesson 3. Optional homework： Search for more stories about Saihanba online and share them with your partners. EVCapture4.2.2软件录制 Lavf58.46.101 本视频由湖南一唯信息科技开发的EV录屏软件录制，www.ieway.cn null 102384.0 null 102384.0 $