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课件网) Welcome to the unit Unit 7 The natural world 八年级上册 Free talk 1. What can you see in the picture I can see a white bird flying over the water. 2. Where does this kind of bird like to live This kind of bird likes to live in open areas with water, like wetlands. Free talk What different types of ecosystems do you know forests deserts oceans wetlands grasslands polar regions Lead-in What will we do in this unit better understand the importance of protecting ecosystems. give suggestions on how to protect ecosystems; learn about protecting ecosystems; read about different ecosystems; 2 4 1 3 In this unit, we will Fun facts about ecosystem Finish Part A on page 93. Describing different ecosystems What can you see in the picture What ecosystem does it show I can see many plants. This is the rainforest ecosystem. Describing different ecosystems I can see colourful coral reefs and fishes. This is the ocean ecosystem. What can you see in the picture What ecosystem does it show Describing different ecosystems I can see wide open areas with green grass and a few trees. This is the grassland ecosystem. What can you see in the picture What ecosystem does it show Describing different ecosystems I can see four penguins standing on the ice. This is the polar ecosystem. What can you see in the picture What ecosystem does it show Listening for the general idea Listen to Kitty and David’s conversation in Part B on page 93 and answer the following question. Which of the ecosystems do they mention Listening for details Listen to their conversation again and complete the table below. Grasslands Deserts Climate — It’s dry with little (3) _____. There’s a huge difference in (4) _____ between day and night. Animals & plants Grasslands in different places are home to different animals, like (1) _____ in Inner Mongolia, but (2) _____ in Africa. (5) _____ animals and plants can live there. The desert plants keep water in their (6) _____, and many animals can get water from these plants. horses and cows lions and giraffes rain temperature Only a few leaves Role-play Read the conversation aloud in different roles. Discussion Work in pairs and talk about fun facts about ecosystems they know, using Kitty and David’s conversation as a model. A: Do you know anything about … B: I know that … in different places are home to ... In …, there are …, but in …, there are ... A: Oh, really Do you know anything about … B: Well, it’s ... And ... A: Yes, the climate in ... is ... B: It’s true. They help … and give food to ... What other fun facts about ecosystems do you know Discussion Oceans cover about 71% of the earth’s surface, making them the largest ecosystem on earth. Grasslands have very few trees but lots of tall grasses and wildflowers. In deserts, some plants can live without rain for years. Polar bears live in the North Pole, and penguins live in the South Pole. ... Homework Search for more inform ... ...
