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课件网) The natural world Unit 7 Welcome to the unit Learning Objectives By the end of the class, students will be able to： 1. read about different ecosystems; 2. learn about protecting ecosystem; 3. give suggestions on how to protect ecosystems; 4. better understand the importance of protecting ecosystems. Learning Objectives Bt the end of this lesson, we will be able to： 1. acquire and restate basic features, major species, and climates of ecosystems; 2. collaborate to describe ecosystem features; 3. reflect on the importance of protecting environment and respecting the rules of ecosystems. Watch and answer What makes up biodiversity 生物多样性 Watch and answer What makes up biodiversity ecosystem biodiversity plant animal virus bacteria fungi / eko s st m/ n. 生态系统 真菌 病毒 细菌 Ecological Display Board 生态展板 Look and answer What can you see in this picture Rainforests are home to over half of all the types of animals and plants on earth. Coral reefs look like rocks, but they support a lot of life in just a small area. Ecological Display Board 生态展板 /ri f/ n. 礁 / k r l/ n. 珊瑚 Look and answer What can you see in this picture Ecological Display Board 生态展板 Grasslands often lie between deserts and forests. Look and answer What can you see in this picture Ecological Display Board 生态展板 The polar ice is home to animals like polar bears and penguins. / pe ɡw n/ n. 企鹅 Look and answer What can you see in this picture Ecological Display Board 生态展板 Read and tick Learn from the facts below and tick the ones you already know. Rainforests are home to over half of all the types of animals and plants on earth. Coral reefs look like rocks, but they support a lot of life in just a small area. Grasslands often lie between deserts and forests. The ice is home to animals like polar bears and penguins. Tourist Message Board 游客留言板 e.g. Wetlands act as nature’s sponge, storing water and preventing floods. 湿地就像大自然的海绵，储存水分并预防洪水。 Brainstorming Discuss in groups, talking about other knowledge you know about ecosystems. And write them on the board. _____. _____. _____. Listen and complete _____ in different places are home to different animals. In Inner Mongolia, there are _____ and _____, but in Africa, there are _____ and _____! It’s very _____ in deserts because there’s little rainfall. The climate in deserts is so _____ that _____ animals and plants can live there. The desert plants keep water _____ and many animals there get water from these plants. Grasslands / re n f l/ n. 降雨量，下雨 Kitty and David are talking about ecosystems. Listen to conversation. Fill in the blanks with words or phrases you heard. horses cows lions giraffes dry awful only a few in their leaves / kla m t/ n.气候 Do you know anything about ecosystems, David I know that grasslands in different places are home to different animals. In Inner Mongolia, there are horses and cows, but ... ...
