译林版初中英语八年级上册 U7 The natural world Welcome 优质课件

8A Unit 7 The Natural World Welcome to the unit牛津译林新教材By the end of the lesson, I will be able to... understand and remember key words related to ecosystems;arouse students’ interest in the natural world and ecosystems. grasp fun facts about different ecosystems；What did you see in the video? Can you name these places?ecosystemsrainforestCoral reefgrasslandpolar iceTask 1 Guessing gamesTask 2 Read and TickHalf of the world's animals and plants live in rainforests.Coral reefs look like rocks,but they support a lot of life in just a small area.......的一半热带雨林珊瑚礁v.支持在很小的区域内Kitty is learning about ecosystems. Read the facts below with her and tick the ones you already know.ATask 2 Read and TickGrasslands often lie between deserts and forests.The polar ice is home to animals like polar bears and penguins.草原v.位于polar ice 极地冰n.企鹅Task 3 PredictionTask 4 Listen and TickListen to the conversation and circle the words you hear. rainforestCoral reefgrasslandpolar iceTask 5 Fill in the blanksKitty: Do you know anything about , David?David: I know that in different places are home to different animals. In Inner Mongolia, there are horses and cows, but in , there are lions and giraffes.Kitty: Oh, really? Do you know anything about ?David: Well, it's very dry in deserts because there's little rainfall. And the difference in between day and night is huge.Kitty: Yes, the in deserts is so that only a few animals and plants can live there.David: It's true, The desert keep water in their leaves and many animals there get water from these plants.ecosystemsgrasslandsAfricadesertstemperatureclimateawfulplantsKitty and David are talking about ecosystems. BListen and answer the following questions.(1) Which ecosystems do Kitty and David talk about?(2) What do grasslands in different places serve as for different animals according to David?They talk about grasslands and deserts. Grasslands in different places are home to different animals.Task 6 QuestionsTips：Catch the key words.Listen and answer the following questions.(3) Why are deserts very dry?(4) What animals does David say are in Inner Mongolia?Because there's little rainfall.Horses and cows.Task 6 QuestionsListen and answer the following questions.(5) How does Kitty describe the climate in deserts?(6) Where do many animals in deserts get water from?The climate in deserts is so awful that only a few animals and plants can live there.From the desert plants (which keep water in their leaves).Task 6 QuestionsTask 7 Listen and repeatKitty: Do you know anything about ecosystems , David?David: I know that grasslands in different places are home to different animals. In Inner Mongolia, there are horses and cows, but in Africa, there are lions and giraffes.Kitty: Oh, really? Do you know anything about deserts?David: Well, it's very dry in deserts because there's little rainfall. And the difference in temperature between day and night is huge.Kitty: Yes, the climate in deserts is so awful that only a few animals and plants can live there.David: It's true, The desert plants keep water in their leaves and many animals there get water from these plants.①Which place is home to penguins? A. Rainforest B. Polar ice C. Grassland②In which place are there lions and giraffes? A. Inner Mongolia B. Africa C. DesertTask 8 ExerciseTask 9 Take notesKitty: Do you know anything about ecosystems , David?David: I know that grasslands in different places are home to different animals. In Inner Mongolia, there are horses and cows, but in Africa, there are lions and giraffes.Kitty: Oh, really? Do you know anything about deserts?David: Well, it's very dry in deserts because there's little rainfall. And the difference in temperature between day and night is huge.Kitty: Yes, the climate in deserts is so awful that only a few animals and plants can live there.David: It's true, The desert plants keep water in their leaves and many animals there get water from these plants.Task 10 Pair workWork in pairs and discuss the topic.Use Kitty’s and David’s conversation as a model.A: Do you know anything about ecosystems ?B: I know that ... in different places are home to different animals. A: Oh, really? Do you know anything about ...?B: Well, it's ... because .... A: Yes, ... so ...that ...Homework07抄写课本 92 - 93 页的新单词和短语，每个抄写 3 遍，并背诵。写短文《How to Protect Ecosystems》，说明保护的重要性及至少 2 个措施（如减少污染、保护动物）用英语简单描述一种生态系统（如雨林 / 沙漠），说明其生物或环境特点（30 词左右）