(
课件网) Unit4 Amazing Plants and Animals Sec B 3a-3c What makes plants and animals amazing 02 能够通过各种写作活动，锻炼自己的写作能力；同时归纳总结各种议论文的写作要点。 03 引导学生了解生物蓝鲸对于生态系统的重要性，从而进一步了解动植物对于生态系统的重要性。 能够了解蓝鲸的一些内容；通过分析第一段的由第一人称改为第三人称的内容，了解到改写的注意点。 01 Learning Objectives Elephant Five tons Do you know how much does an elephant weigh Warm up What animal is this A blue whale How many elephants would equal one blue whale 40 elephants Pre-reading So amazing！ Let’s learn something about the bule whale！ What's the text mainly about Blue whales are amazing and need protection Fast-reading Q1 What is the blue whale known for The blue whale is the largest and heaviest animal on Earth. Careful-reading Q2 How much can a blue whale weigh It can weigh up to 200 tons. Q3 Where do blue whales live They live in all oceans except the Arctic Ocean. Careful-reading Q4 What do blue whales eat, and how much per day They eat some of the tiniest ocean animals, around four tons daily. Careful-reading Q5 How long can blue whales live They can live up to 90 years. Careful-reading Q6 How do blue whales contribute to a healthy ocean ecosystem By providing long-lasting food sources after death, creating a lively and healthy ecosystem. Careful-reading What's the structure of the text Protection call Ecological role Basic facts Let’s make a summary about the bule whale ！ Careful-reading Blue whale facts Weight Where they live Food How long they live Role in ecosystem Finish the form below It can weigh as much as 200 tons. In all oceans except the Arctic Ocean. Some of the tiniest animals in the ocean, around four tons of them a day. 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, lasting for over a year and helping to create a lively and healthy ecosystem. Summary Further Thinking Why is protecting blue whales important They play a key role in marine ecosystems, and their decline (减少）could disrupt（扰乱）ocean health. Post-reading Imagine you are a blue whale, can you introduce yourself Further Thinking Post-reading Imagine you are a blue whale. Use the first person to rewrite the first paragraph. 3b 第一人称 How 第一段 Pre-writing Step 1 找人称 Pre-writing Step 2 换人称 I am I me swims I am I I I I Pre-writing Step 3 句子对比 I am 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. I live in all oceans except the Arctic Ocean. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. Pre-writing I am 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. I live in ... ...
