(
课件网) Unit 4 Amazing Plants and Animals How are plants and animals connected with us (Section B 3a—3c) Quiz about animals Which animal runs the fastest among all land animals The cheetah The horse The lion What animal has the longest neck The ostrich The deer The giraffe What is the largest and heaviest animal in the world The lion The elephant The blue whale Let's learn more about blue whales! What is the type of the article A. It is a narration.(记叙文) B. It is an exposition( 说明文) C. It is an argumentation( 议论文) D. It is a practical writing(应用文) It tells us many facts about the blue whales. The feature of an exposition: Factural and accurate. (客观准确） Read the text and complete the table. 3a The blue whale is the largest and heaviest animal on earth. It can weigh as much as 200 tons. Many people like watching blue whales swim, and they think it is one of the most beautiful things to see. Blue whales live in all oceans except the Arctic Ocean. They eat a lot, but they eat some of the tiniest animals in the ocean. A blue whale can eat around four tons of these a day. Blue whales can live up to 90 years. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. This food lasts for over a year and it helps to create a lively and healthy ecosystem. Blue whales play an important role in our world, so we must protect them. The Blue Whale Blue whale facts（事实） Weight Where they live Food How long they live Importance in nature What's the structure of the text Protection call importance in nature facts Pre-writing people's opinion Further Thinking Why is protecting blue whales important They play an important role in marine ecosystems, and their decline (减少）could disrupt（扰乱）ocean health. 一鲸落，万物生。 If you are blue whales, can you introduce yourselves Imagine you are a blue whale. Use the first person to rewrite the first paragraph. 3b 第一人称 While-writing How Step 1 找人称 Step 2 换人称 Step 3 句子对比 Step 4 填充内容 Step 5 整合内容 While-writing Step 1 找人称 While-writing Step 2 换人称 I am I me I am I I I I 注意： 主、谓、宾一致 Step 3 句子对比 A. I am the largest and heaviest animal on earth. B. I can weigh as much as 200 tons. C. Many people like watching me swim, and they think I am one of the most beautiful things to see. D. I live in all oceans except the Arctic Ocean. E. I eat a lot, but I eat some of the tiniest animals in the ocean. F. I can eat around four tons of these a day. the largest and heaviest animal on earth. I can weigh as much as 200 tons. Many people like watching me swim, and they think I am one of the most beautiful things to see. all oceans except the Arctic Ocean. I eat a lot, but I eat some of the tiniest animals in the ocean. around four tons of these a day. Step 4、5 填充、整合内容 while-writing swimming, and people think I am one of the most beautiful things to see. some of the tiniest a ... ...
