Unit 1 Our living planet Reading (1) 教学设计-2025-2026学年高中英语译林版(2020)选修第一册

课 时 教 案 课题：Reading (1) U1选修一 第　 　课时 总序第 个教案 课型： New lesson 编写时间: 2025年 月 日 执教时间：2025年 月 日 教学目标： 批　注 give a brief introduction to different zones of the ocean; 教学重点：give a brief introduction to different zones of the ocean; 教学难点：give a brief introduction to different zones of the ocean; 教学用具：Multi-media 教学方法：Group work, discussion 教学实施过程： 1. Have students answer the two questions on page 2 before reading the documentary transcript. 1）What do you know about the world beneath the ocean? The ocean covers around 71% of the surface of our planet. The world beneath it is vast and mysterious. In fact, only a small percentage of the ocean below the surface has been explored and charted. However, the parts that we have explored contain interesting finds. We have found the blue whale, which is the largest known living animal on the Earth. We have also found a 65,000-kilometre-long mountain range beneath the ocean, which is the world’s longest. There are also many spectacular underwater volcanoes. 2) Would you dive to the ocean bottom if you had the chance? Why or why not? Yes, I would. Not many people get to explore the depths of the ocean, so if I had the chance, I would take it. Considering that only a small percentage of the ocean below the surface has been explored and charted, I think my chances of discovering a new life form or something unusual and interesting could be high. Many mysteries above ground have already been discovered, so the ocean may be the final frontier that I want to explore! 批　注 2.Have students read the transcript and finish A1 on page 4. Para. 2: Much of the known marine life lives in the open ocean, and small filter feeders and hunters live in the twilight zone. Para. 3: The deep ocean is home to the strangest creatures on the Earth. Para. 4: Shrimps and other organisms live around hydrothermal vents, and the Mariana Trench can be found on the ocean floor. Para. 5: More wonders beneath the surface of the ocean await us. 3.Have students read the transcript again and finish A2 on page 4. 1) Less than 20%. 2) They swim up to feed in the nutrient-rich waters above. 3)They depend on other senses such as smell and their ability to detect slight changes in water pressure to obtain food and avoid being caught. 4) The knowledge that life can exist in the extreme conditions on the ocean floor. 4. Have students write a summary of the transcript in no more than 100 words according to the information in the above table. The ocean mainly consists of three different zones. The first 200 metres just below the ocean surface can be called the open ocean, where much of the known marine life lives and most visible light exists. The twilight zone is below 200 metres, where with little sunlight, there is almost no plant life, and small filter feeders and hunters live. Past 1,000 metres, we have reached the deep ocean, where many strange creatures can be found living in this extreme environment. On reaching the ocean floor, we may see shrimps and other organisms around hydrothermal vents.The famous Mariana Trench can be found in this zone. 教学反思： 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$