Unit 4 复习课件 2025-2026学年人教版英语八年级上册

教学课件 人教版八年级上册Unit4期末复习 Unit 4 Amazing Plants and Animals 单词+短语+句子+语法+写作 1 目录 01 基础 02 语法 03 写作 01 基础 一、重点单词 1.folding _ (v.折叠) _ (adj.折叠好的) 2.popular _ (n.流行) _ (adj.不受欢迎的) 3.actually _ (adj.实际的) 4.appear _ (n.外貌) _ (v.消失) 5.African _ (n.非洲) _ (n.非洲人复数) 6.butterfly _ (n.蝴蝶复数) 7.weigh _ (n.重量) 8.connect _ (n.连接) _ (adj.连接的) fold popularity connection actual appearance Africa butterflies folded unpopular disappear Africans weight connected 9.without _ (prep.有;和......一起,反义词) 10.imagine _ (n.想象力) _ (adj.想象出来的) 11.disappointed _ (adj.令人失望的) _ (v.使失望) 12.action _ (v.行动) _ (adj.积极的) _ (adv.积极地) 13.communicate _ (n.交流) _ (adj.健谈的) 14.protect _ (n.保护) 15.happiness _ (adj.幸福的) _ (adj.更幸福的) _ (adj.最幸福的) _ (adv.幸福地) 16.lively _ (v.居住) _ (adj.活的) with imagination disappointing act active communication actively imaginary disappoint communicative protection happy happier happiest happily live alive 1.最大的动物:_ 2.最有用的植物:_ 3.参与;在...中起作用:_ 4.是......的栖息地:_ 5.散步:_ 6.美德的象征:_ 7.成千上万的:_ 8.生活在森林里:_ 9.依赖水:_ 二、 重点短语 the most useful plant take part in/play a role in be the habitat of take a walk/go for a walk a symbol of virtue thousands of live in the forest the largest animal depend on water 10. 保护野生动物:_ 11. 在深海里:_ 12. 在高山上:_ 13. 落叶:_ 14. 以鱼为食:_ 15. 在沙漠里:_ 16. 节省能量:_ 17.生长在沙漠:_ 18.群居:_ 19. 有锋利的牙齿:_ protect wild animals in the deep sea on the high mountains fallen leaves feed on fish in the desert save energy grow in the desert live in groups have sharp teeth 1.蓝鲸有什么惊人之处呢? _ 2.它是世界上最大的动物。 _ 3.竹子是中国绘画中最受欢迎的主题之一。 _ 4.有些竹子一天之内几乎能长一米。 _ 5.人们可以用它来建造房屋、制作工具和器具。 _ 三、重点句型 What's amazing about blue whales? It is the largest animal in the world. Bamboo is one of the most popular themes in Chinese painting. Some bamboos can grow almost one meter a day. People can use it to build houses, make tools and utensils. 6.我认为世界上最有用的植物是竹子。 _ 7.它的体重可达200吨。 _ 8.它们食量很大,但它们吃的却是海洋中一些极其微小的动物。 _ 9.蓝鲸可以活到90岁。 _ 10.当一头蓝鲸在海洋中死去,它就会成为生活在海洋中及海洋周边多种动物的食物。 _ Its weight can reach 200 tons. Blue whales can live up to 90 years old. When a blue whale dies in the ocean, it becomes food for many kinds of animals living in and around the ocean. I think the most useful plant in the world is bamboo. They eat a lot, but they feed on some extremely small animals in the ocean. 02 语法 1. 概念界定 最高级用于三者或三者以上的人或事物之间的比较,描述其中一方在性质、程度、数量等方面“最……”,分为形容词最高级和副词最高级。 2. 形容词/副词最高级的构成 最高级构成分规则变化和不规则变化,规则变化需根据单词音节、词尾特征判断变形方式,与比较级变形规则关联紧密。 形容词/副词的最高级 (1)规则变化 变化类型 变化规则 形容词示例 副词示例(部分副词由形容词+ly构成) 单音节词 直接加-est tall tallest, fast fastest fast fastest, hard hardest 以e结尾加-st nice nicest, late latest late latest, fine finest 重读闭音节(辅+元+辅)双写尾字母加-est big biggest, slim slimmest thin thinnest, hot hottest 辅音+y结尾变y为i加-est happy happiest, easy easiest early earliest, busy busiest 双音节词 部分双音节词加-est(多为以y/ow/le结尾) pretty prettiest, narrow narrowest slow slowest, simple simplest 多数双音节词/多音节词前加most careful most careful, colourful most colourful carefully most carefully, quickly most quickly 变化类型 变化规则 形容词示例 副词示例(部分副词由形容词+ly构成) (2)不规则变化(需熟记) 原级 最高级 词性 例句 good/well best 形/副 I love pandas the best. bad/badly worst 形/副 This is the worst movie I’ve ever seen. many/much most 形/代 Bamboo is the most useful plant in the world. little least 形/代 He has the least money of us all. far farthest/furthest 形/副 She lives the farthest in our class. 3. 最高级的用法 (1)基本句式:A + 谓语 + the + 最高级 + 表示范围的短语/从句 表示“A在某范围内是最……的”,形容词最高级前必须加the,副词最高级前的the可省略;表示范围的常用短语有in the world/ class/ country、among all...、of all the...等。 形容词最高级:The blue whale is the largest animal in the world.(蓝鲸是世界上最大的动物。) 副词最高级:The cheetah runs (the) fastest among all land animals.(猎豹在所有陆地动物中跑得最快。) (2)“one of the + 最高级 + 复数名词”结构 表示“最……之一”,此结构中最高级后必须接可数名词复数,谓语动词用单数。 示例: Bamboo is one of the most useful plants in the world.(竹子是世界上最有用的植物之一。) Pandas are one of the cutest animals in the world.(熊猫是世界上最可爱的动物之一。) (3)最高级的修饰词 可在最高级前加the very(正是最……的)、the far(远比……更)、by far(……得多)、almost(几乎最……的)等,细化最高级的程度。 示例: This is the very best book I’ve read this year.(这是我今年读的最好的一本书。) She is by far the most beautiful girl in our school.(她是我们学校漂亮得多的女孩。) (4)最高级的比较范围 介词in后接表示整体的单数名词或代词(如in the city, in China); 介词of后接表示群体的复数名词或代词(如of all the students, of the three); 介词among后接表示群体的代词或名词(如among all animals, among them)。 (1)基础题:写出下列单词的最高级 1.tall 2.fast 3.nice 4.big 5.happy 6.easy 7.careful tallest most quickly biggest best easiest fastest nicest happiest most careful worst 8.quickly 9.good/well 10.bad/badly 11.much/many 12.thin 13.late 14.beautiful 15.far most thinnest latest most beautiful farthest/furthest (2)基础题:用所给词的适当形式填空 1.The blue whale is _ (large) and _ (heavy) animal in the world. 2.I think pandas are _ (cute) animals in the world. 3.The cheetah runs _ (fast) among all land animals. 4.Bamboo is _ (useful) plant in the world, I think. 5.Which flower is _ (beautiful), the rose, the peony or the lotus? the largest the heaviest the cutest (the) fastest the most useful the most beautiful 6.The butterfly has _ (colourful) wings I’ve ever seen. 7.The elephant bird was _ (large) and _ (heavy) bird on earth. 8.Ginkgo is one of _ (ancient) living trees in the world. 9.Which animal jumps _ (high), the lion, the monkey or the tree frog? 10.This is _ (interesting) plant I have ever known. the most colourful the largest the heaviest the most ancient (the) highest the most interesting (3)基础题:用one of the + 最高级 + 复数名词完成句子 1.熊猫是世界上最可爱的动物之一。 Pandas are one of _ _ _ in the world. 2.竹子是世界上最有用的植物之一。 Bamboo is one of _ _ _ _in the world. 3.猎豹是陆地上跑得最快的动物之一。 The cheetah is one of _ _ _ on land. 4.银杏是地球上最古老的树木之一。 Ginkgo is one of _ _ _ _ on earth. the cutest animals the most useful plants the fastest animals the most ancient trees 5.玫瑰是最美丽的花之一。 The rose is one of _ _ _ _. 6.蓝鲸是世界上最大的动物之一。 The blue whale is one of _ _ _ in the world. 7.大象是陆地上最大的动物之一。 The elephant is one of _ _ _ on land. 8.牡丹是中国最受欢迎的花之一。 The peony is one of _ _ _ _in China. the most beautiful flowers the largest animals the biggest animals the most popular flowers (4)提升题:选择最佳选项补全句子/对话 1.The African elephant is _ land animal in the world. A. the biggest B. biggest C. the bigger 2.I love pandas _. I think they are the cutest animals. A. best B. better C. well 3.Bamboo is one of _ useful plants in the world. A. the most B. most C. more 4.The cheetah runs _ among all land animals. A. the fastest B. fastest C. faster 5.Which do you think is _ flower, the rose or the lotus? A. beautiful B. more beautiful C. the most beautiful A A A A/B C 6.This is _ interesting book I’ve ever read. A. the most B. most C. more 7.One of the _ trees in China is in Shaanxi Province. A. oldest B. the oldest C. old 8.The elephant bird was _ than any other bird on earth. A. larger B. the largest C. largest 9.She sings _ in our class. A. the best B. best C. better 10.Ginkgo trees are some of _ living things on earth. A. the ancientest B. the most ancient C. most ancient A A A A/B B (5)提升题:句型转换 1.The blue whale is the largest animal in the world.(改为同义句,用比较级) The blue whale is larger than _ _ animal in the world. 2.Bamboo is the most useful plant in the world.(改为同义句,用one of) Bamboo is one of _ _ _ plants in the world. 3.The cheetah runs fastest among all land animals.(对划线部分提问,划线:fastest) _ _ does the cheetah run among all land animals? 4.Pandas are the cutest animals in the world.(改为一般疑问句) _ pandas the cutest animals in the world? any other the most useful How fast Are 5.This is the most beautiful flower I’ve ever seen.(改为否定句) This is _ _ _ _ flower I’ve ever seen. 6.He is the tallest boy in our class.(改为比较级) He is taller than _ _ boys in our class. 7.One of the most popular plants in China is ginkgo.(对划线部分提问,划线:ginkgo) _ is one of the most popular plants in China? 8.The butterfly has the most colourful wings.(对划线部分提问,划线:the butterfly) _ has the most colourful wings? not the most beautiful the other What Who/Which 03 写作 写作目标 结合本单元“介绍神奇动植物、使用最高级比较事物”的核心目标,能以第一人称改写关于蓝鲸的文章,内容包括:蓝鲸的体型、栖息地、食物等特征,以及它在生态系统中的重要性。 1.能正确使用形容词最高级(-est/most)描述蓝鲸的特征(本单元核心语法); 2.能运用本单元与动植物、生态相关的词汇(如largest, heaviest, ecosystem)介绍蓝鲸; 3.能按照第一人称的视角改写文本,语言通顺、逻辑清晰,贴合科普文的写作特点。 典型例题 阅读教材中关于蓝鲸的科普文章后,请你以Rewrite an Article about the Blue Whale为题,以蓝鲸的第一人称视角改写这篇文章,内容需涵盖蓝鲸的体型、栖息地、食物、寿命以及在自然界中的重要作用。 要点: 1.你(蓝鲸)的体型有什么特点? 2.你生活在哪些区域,以什么为食? 3.你的寿命有多长? 4.你在自然界的生态系统中有着怎样的重要性? 题目解析 1.体裁:科普说明文(改写类),要求以第一人称视角改写蓝鲸的介绍文章,需准确还原原文信息,契合本单元“介绍神奇动植物”的写作要求。 2.人称:以第一人称(I/me) 为主,从蓝鲸的视角进行自述;涉及生态系统等内容时用第三人称,符合自述类科普文的人称使用规范。 3.时态:核心用一般现在时介绍蓝鲸的基本特征和生活习性(本单元重点时态);用一般将来时/情态动词(can/may)说明能力或作用,难度适配八年级学生水平。 4.核心要求 ￮内容:准确改写原文中蓝鲸的体重、栖息地、食物、寿命及生态重要性等信息,体现本单元“用最高级描述事物”的目标。 ￮字数:90-110词,句子以简单句和基础复合句为主。 Rewrite an Article about the Blue Whale Hello everyone! I am a blue whale. I am the largest and heaviest animal on earth.(the largest and heaviest为最高级,本单元语法)I can weigh as much as 200 tons. Many people think I am one of the most beautiful things to see in the sea.(the most beautiful为最高级,本单元语法) I live in all oceans except the Arctic Ocean. I eat some of the tiniest animals in the ocean, and I can eat around four tons of them a day. I can live up to 90 years. When I die at sea, I become food for many sea animals. This food lasts for over a year and helps make the ecosystem lively and healthy. I play an important role in the world, so please protect me! 好句集锦 1.I am the heaviest animal on earth and I can weigh up to 200 tons.(我是地球上最重的动物,体重可达200吨。) 2.I eat the tiniest animals in the ocean, but I eat a lot every day.(我以海洋里最小的生物为食,但每天吃的量却很大。) 3.When I die at sea, I can provide food for many sea animals for over a year.(当我在海里死去时,我能为许多海洋动物提供长达一年多的食物。) 4.We blue whales are important to the ecosystem, so people must protect us.(我们蓝鲸对生态系统很重要,所以人类必须保护我们。) 教学课件 Unit4 期末复习 Thank you for listening! 34 $