(
课件网) 主讲人：XXX 课型：单元导入课 Welcome to the unit Unit 7 The natural world 借助图文识别自然界不同类型的生态系统，初步了解其环境特征和特有生物等基本信息;（学习理解） 01 获取并梳理Kitty和 David 对话中关于草原和沙漠生态系统的信息，提取并归纳描述各自环境特征及特有生物的词汇和语言表达;（应用实践） 02 运用所学词汇和语言表达开展同伴问答活动，交流自己了解的生态系统趣味知识。（迁移创新） 03 Lead in 01 Unit overview 02 Presentation 03 Practice 04 Summary 05 Language points 06 Exercises 07 Homework 08 Lead in 01 Lead in What can you see in the picture Egret白鹭 Where does this kind of bird like to live Wetland 湿地 What different types of ecosystems do you know Unit overview 02 Unit overview What will we learn in this unit Unit overview v v Presentation 03 Presentation Look and say over half of all the types of animals and plants Rainforest ecosystem be home to green plants Presentation Ocean ecosystem fish coral reefs look like rocks they support a lot of life Presentation Grassland ecosystem wide open areas with green grass and a few trees lie between deserts and forests Presentation Polar ecosystem penguins stand on the ice polar bears Presentation What other ecosystems do you know Presentation desert ecosystem wetland ecosystem Presentation Fun facts about deserts Presentation Climate: hot, little rain Life: plants (cacti), animals (camels) How to survive: store water/fat Importance: be home to… Presentation Fun facts about wetlands Presentation Climate: hot, little rain Life: plants (cacti), animals (camels) How to survive: store water/fat Importance: be home to… Kidneys Keep water clean Prevent floods Biodiversity生物多样性 Presentation Kitty and David are talking about ecosystems. Listen and fill Grasslands Deserts Climate It’s very dry with little 3._____. There’s huge difference in 4._____between day and night. Animals & plants Grasslands in different places are home to different animals, like 1._____ in Inner Mongolia, and 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 Presentation Listen and read Practice 04 Practice Work in pairs and discuss the topic. Use the conversation below as a model. A: Do you know anything about ... B: l 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 … Pair work Practice 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. … What other fun fact ... ...
