Unit 4 Section B (3a～Project)课件-2025-2026学年人教版（2024）英语八年级上册

该初中英语课件围绕“蓝鲸的特征及生态作用”展开，通过“Protect Blue Whales”中英双语主题导入，从阅读文本提取信息（3a表格梳理体重、栖息地等），到解析“live up to”等语言点，再到第一人称改写（3b），搭建从输入到输出的学习支架。 其亮点在于任务链融合语言能力与思维品质，如3a阅读后用表格梳理信息培养分析能力，3b以蓝鲸自述改写整合关键信息提升表达能力，项目式海报制作需小组合作收集资料锻炼学习策略。学生能综合运用语言技能，教师可借助结构化活动提升教学效率。

Amazing Plants and Animals Section B (3a~Project) Unit 4 1 Learning aims 能以自述的口吻介绍蓝鲸 能够关于蓝鲸的介绍 能制作一份关于某种动物或植物的海报 2 Lead in The blue whale Activity 1 Know something about the blue whale by reading 1. How many paragraphs are there in this article? Read the text and answer the questions. Two. 2. What’s the topic sentence for each paragraph? Para.1: The blue whale is the largest and heaviest animal on earth. Para.2: Blue whales play an important role in our world, so we must protect them. 3a Read the text and complete the table. 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 Weight Where they live Food How long they live Role in ecosystem 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. Language points 1. Blue whales can live up to 90 years. 蓝鲸的寿命可达 90 年 。 live up to 达到；符合（期望等）；活到（某一年龄、岁数等） 例如： He always lives up to his parents' expectations. 他总是不辜负父母的期望。 【拓展】同义词 reach 达到（某一数量、程度、年龄等 ）；在表示活到某一年龄时，可与 “live up to” 替换。 例如： Some trees can reach a height of 30 meters. 有些树能长到 30 米高 。 Some people can reach 90 years old. 有些人能活到 90 岁 。 2. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. 当一头蓝鲸在海洋中死去时，它会成为生活在海洋里及海洋周边的多种动物的食物。 living in and around the sea 整体是现在分词短语作后置定语，修饰前面的 animals。相当于一个定语从句 which/that live in and around the sea。 例如： The boy standing there is my brother. 站在那儿的男孩是我弟弟。 standing there 修饰 the boy，可转换为 The boy who/that is standing there is my brother. Activity 2 Use the first person to rewrite the passage. 3b Complete your passage about the blue whale based on the text in 3a. 写作指导 文本体裁 话题分析 要求写完成段落的改写，主要改写内容为3a第二段的内容，涉及到蓝鲸的寿命和对生态环境的重要性等内容。 本文将第三人称的段落内容，改写为第一人称的段落内容。分析原文章属于介绍类文章，改写后，还是自身特性介绍，因此是说明文。 人称时态 以第一人称为主；以一般现在时为主。 Imagine you are a blue whale. Use the first person to rewrite the first paragraph. Hello everyone! My name is Billy the Blue Whale. I am _____________ ___________________________________________________________ I’m heavy, but I love __________________________________________ ___________________________________________________________. I live in ____________________________________________________. My favourite food is __________________________________________ I can eat ____________________________________________________. the largest and heaviest animal on earth. My weight is as much as 200 tons. swimming in the ocean. 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. some of the tiniest animals in the ocean. around four tons of them a day. What should we mainly pay attention to when rewriting an article? 人称: 由第三人称变成第一人称 内容要点: 要点不能省略或者遗漏。 语言: 个别句子需要变化结构 weight living area food amount of food eaten preference 3c 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. Complete your passage about the blue whale based on the text in 3a. points lifespan role /function importance I can live up to 90 years. When I die at sea, I become 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. I play an important role in our world, so you must protect me. Sample Activity 3 Make a poster about a plant or an animal 4a Work in groups. Choose or create the title of your poster. 4b Collect pictures and find out information about the plant or animal that you chose. 1. What is its name? 2. Where does it live / grow? 3. Why did you choose it? 4. What are some interesting facts about it? 1. What is its name? Its name is sunflower. 2. Where does it live / grow? It mainly grows in sunny fields, meadows and farmlands in temperate and tropical regions. It needs plenty of sunlight to thrive. 3. Why did you choose it? I chose it because its bright yellow petals always face the sun, which gives people a feeling of warmth and vitality. It also symbolizes optimism and positiveness. 4. What are some interesting facts about it? Some interesting facts about sunflowers: First, the head of a sunflower is actually made up of thousands of tiny flowers. Second, sunflowers can track the movement of the sun across the sky during the day, a phenomenon called heliotropism. Third, sunflower seeds are not only a popular snack but also an important source of oil. 4c Make your poster. Present your poster in class. Then vote for the best one. 4d Reflecting 1. What amazing plants and animals did you learn about in the unit? 2. When do you use the superlative forms of adjectives and adverbs? 3. Can you describe some amazing plants or animals in the world? 4. How are we connected with plants and animals? Take care of animals and plants because we cannot live without them. Summary New words Project ocean; except; tiny; lively Make a poster about a plant or an animal Use the first person to rewrite the second paragraph (1) 人称: 由第三人称变成第一人称 (2) 语言: 个别句子需要变化结构 (3) 内容要点: 要点不能省略或者遗漏。 Reading & Writing Expressions live up to 21 Exercise 用括号内所给词的适当形式填空 1.I have a ____________ (collect) of stamps from different countries.  2.My mother was a little ____________ (disappoint) when I forgot to do the dishes.  3.My father is ____________ (communicate) with Mr Li on the phone.  4.We should all understand the ____________ (important) of protecting the environment so that we can have a better world.  5.We can’t finish this difficult task ___________(with) working together.  collection disappointed communicating importance without Homework 1 Write the words and phrases five times each. 2 Prepare for the mid-term exam. 23 null 61800.0 $