Unit 1 Our Living Planet Reading 课件 -2022-2023学年高中英语牛津译林版（2020）选修第一册

新牛津译林版高中英语选修一Unit 1 Our Living Planet Reading The ocean is full of magic and mystery. What do you know about the world beneath the ocean? The ocean covers around 71% of the surface of our planet. 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. The ocean was divided into different zones based on depth from the surface for ease of studies. What are the different zones? 200 meters The open ocean/Sunlight zone (透光区) Sunlight rarely penetrates(穿透) beyond this zone. Twilight zone(暮光区) Sunlight decreases rapidly with depth. The deep ocean(深海区) Sunlight does not penetrate at all. Would you dive to the ocean bottom if you had the chance? Why or why not? Now let's read a documentary transcript to learn more about the amazing world beneath the ocean. a text document that the video file and its oral content are converted into Read and finish the tasks as quickly as possible. Task 1 Read the documentary transcript and complete the chart below with the main idea of each paragraph. Much of the known marine life lives in the open ocean, and small filter feeders and hunters live in the twilight zone. The deep ocean is home to the strangest creatures on the Earth. Shrimps and other organisms live around hydrothermal vents, and the Mariana Trench can be found on the ocean floor. More wonders beneath the surface of the ocean await us. Check your answers: P4 A1 Task 2 True or false. 1. The first 100 metres of our dive takes us through what can be called the open ocean. T / F 2. Sinking above 200 metres, we enter the twilight zone, where there is little sunlight and thus no pl