Unit 4 Section B (2a～3c) 课件 2026-2027学年人教版英语八年级上册

Section B (2a~3c) Unit 4 Amazing Plants and Animals 掌握词汇分类、词缀(-ance/- (t)ion/-ness/-ity )构词法,练习语境运用,构建词汇网络,提升自主探究与解决语言问题的能力; Learning objectives 提取蓝鲸体重、生存区域等关键信息,提升读文提取信息能力; 借青蛙生态作用以及对蓝鲸的了解,树立保护野生动物增强生态保护意识。 通过“第一人称写作语言转换”活动,培养语言转换、创意表达及英语写作逻辑与篇章构建能力,完成 “蓝鲸” 主题段落与短文写作; 按要求写出正确的单词、词组或句子。 没有 (介词) 2. 想象 (动词) 3. 蜂蜜(名词) 4. 沮丧的(形容词) 5. 行动(名词) 6. 百分之(名词) 7. 为了(短语) 8. 储存(动词) 9. 动植物如何和我们联系到一起。 10. 为了存贮蜂蜜,它们创建了蜂巢。 11. 蜜蜂在我们星球的生态系统中扮演重要角色。 without imagine honey disappointed action percent in order to store How are plants and animals connected with us? Bees play an important part in the ecosystem of our planet. In order to store honey, they create honeycombs. Review Section B (1a—1f) Review bamboo ginkgo tree elephant blue whale What other amazing plants and animals do you know? 1. habit height size weight 2. joy happiness fun enjoy 3. angry disappointed smart sad 4. appear look seem watch 5. honey milk juice bread “Look at these groups of words. For each group, there’s one word that doesn’t belong with the others. We need to circle it and explain why. Let’s start together! 3. angry disappointed smart sad 2. joy happiness fun enjoy 1. habit height size weight height(身高;高度 )、size(大小;尺寸 )、 weight(重量 )都用于描 述事物的 “物理量化属性”。 它是动词,其他三个是名词表示积极情绪:“joy” (欢乐 )、“happiness”(幸福 )、“fun”(乐趣 ) smart说的是个人聪明特质,其他三个是负面情绪形容词:angry”(生气的 )、“disappointed”(失望的 )、“sad”(难过的 ) 2a 5. honey milk juice bread 4. appear look seem watch watch是实际的观看动作,其他三个是表达表象 / 印象的: appear”(似乎)、“look”(看起来 )、“seem”(好像;仿佛 ) bread”(面包 )是 “固体食物” ,和前三个是液体饮品类 Add the endings -ance, -(t)ion, -ness, and -ity to form nouns. Use your dictionary. 1. act 2. good 3. kind 4. appear 5. real 6. imagine 7. connect 8. popular 9. communicate 10. important connection communication action kindness reality现实 goodness appearance imagination popularity普及 importance 2b 我们经常在形容词或动词后添加一个后缀 (suffix) 来构成名词。这个名词通常表示一种状态、品质、行为或概念。 后缀常常会改变单词的词性,一般不改变词义。 原单词 原单词 派生名词 派生名词 act v. 行动;表演 action n. 行动;行为 good adj. 好的;优良的 goodness n. 善良;美德 kind adj. 和蔼的;宽容的 kindness n. 仁慈;好意 appear v. 出现;显得 appearance n. 外貌;出现 real adj. 真实的;实际的 reality n. 现实;实际情况 imagine v. 想象;设想 imagination n. 想象力;想象 connect v. 连接;联合 connection n. 联系;关联;连接 popular adj. 流行的;受欢迎的 popularity n. 普及;流行 communicate v. 交流;沟通 communication n. 交流;沟通 important adj. 重要的;重大的 importance n. 重要性 Words in groups look fun habit size weight meanning part of speech meaning part of speech meaning We can put words in different groups in different ways. unhappiness un happi ness 前缀 prefix 词根 root 后缀 suffix 方向/情感 单词= 核心/灵魂 词性 Complete the sentences with the correct forms of the words in the box. appear disappoint imagine store weigh 1. I felt when my favourite flowers died. 2. After the rain, some mushrooms in the garden. 3. In my hometown, people often use bamboo baskets to food. 4. What did you put in your luggage? It a ton. 5. I can’t my life without my pets. They mean a lot to me. appeared disappointed store weighs imagine 2c v. 出现 v. 失望 v. 想象 v. 储存 n.商店 v称重 adj 动词原形 动词原形 动词原形 动词单三 2d Complete the passage with the correct forms of the words in the box. You may not realize it, but frogs play an important role in our ecosystem. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. Many people know that frogs help to farms by eating insects. , not everyone understands their in nature. Frogs can live on and in water. Because of this, they are popular subjects in studies on climate change and the ecosystem. however important land planet protect planet's protect However importance land Complete the passage with the correct forms of the words in the box. however important land planet protect You may not realize it, but frogs play an important role in our ecosystem. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. Many people know that frogs help to farms by eating insects. , not everyone understands their in nature. Frogs can live on and in water. Because of this, they are popular subjects in studies on climate change and the ecosystem. protect However importance land planet’s 2d play a role (in) 在……中发挥作用;扮演角色 但是 重要的 陆地 行星 保护 形容词 动词原形 副词 名词 名词 What can frogs do for nature? Frogs help to protect farms by eating insects. Frogs can help in studies on climate change and the ecosystem. Frogs play an important role in the planet's ecosystem. Let’s learn ton n. 吨 吨:是可数名词,复数形式为 tons; 大量;许多:常用复数形式 tons of,后接可数名词复数或不可数名词。 tons of 大量的;a ton of 一吨……;大量的 1. It weighs a ton. 它非常重。 e.g. They produced thousands of tons of steel last year. 他们去年生产了数千吨钢材。 There are tons of books in the library. 图书馆里有大量的书。 play a role in :在……方面起作用; 在……中扮演角色 e.g. What is John’s role in the play? John在剧中扮演什么角色? The head teacher plays an important role in the good running of a school. 校长在管理一个学校上扮演重要的角色。 2. play a … role in… What can frogs do for nature? Frogs help to protect farms by eating insects. Frogs can help in studies on climate change and the ecosystem. Frogs play an important role in the planet's ecosystem. What's the text mainly about ? Blue whales are amazing and need protection Fast-reading While-reading 3a What information about blue whales can you find? 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. 20 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 hobbies Imagine you are a blue whale. Use the first person to rewrite the first paragraph. 3b What should we mainly pay attention to when rewriting the article? 3b 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's the structure of the text ? Protection call Ecological role Basic facts Let’s make a summary about the bule whale ! Careful-reading 人称:第一人称叙事 时态:一般现在时为主 语言风格:生动活泼 文体:自身特性介绍,说明文。 可在事实基础上进行创意发挥 While-writing 文本体裁 话题分析 围绕 “蓝鲸(Blue Whale)”就其体重、生存区域、食物、寿命以及在生态系统里的作用等内容来写,让读者获取关于蓝鲸的知识。 记叙文+说明文:客观介绍蓝鲸的各类事实信息,清晰、有条理地阐述蓝鲸。 人称时态 用 “I(我)” 的视角和一般现在时,要写出亲切、有代入感的内容,让读者感觉是蓝鲸在 “自述”。 3c Complete your passage about the blue whale based on the text in 3a. Hello, everyone! I'm Willy, a blue whale. I'm proud to be the biggest and heaviest animal on Earth. Can you believe I can weigh up to 200 tons? That's like having hundreds of cars stacked together! I swim freely in all the oceans around the world, except for the freezing Arctic Ocean. The water there is just too cold for me. My home is full of amazing creatures, and I especially love feasting on the tiniest animals in the ocean. Every day, I eat around four tons of them to keep my big body going. Even though I'm huge, I love moving through the water. The ocean is my playground, and I enjoy showing off my swimming skills. I hope people will keep our ocean clean so that I and all my friends can live happily here forever. 评价内容 评 价 标 准 框架结构(Structure) 能够详略得当地安排段落 具体内容(Content) 能够具体、清晰地用已知数据描述蓝鲸 语言表达(Language) 能够使用简明的、准确的、活泼的语言表达 书写质量(Handwriting) 书写规范、字母大小写、标点符号、涂改规范等 Exchange your post with your partner and finish the checklist. 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 Must-do 必做 1.Finish and polish your composition for 3c and submit it in next class. Choose to do 选做 1. Search more information on the Internet about blue whales and think about ways we can do to protect them. Homework $