Unit 4 单元复习 课件 2025-2026学年人教版（2024）英语八年级上册

Unit 4 Amazing Plants and Animals 单元复习 英语人教版八年级上册 popular appear land rose butterfly planet connect imagine action store protect ant climate ocean tiny 极小的 海洋 气候 行星 蚂蚁 保护 蝴蝶 行动 想象 连接 玫瑰 陆地 出现 受欢迎的 Lead-in Look and say: Say the words according to Chinese quickly. 存储 1.Pandas mainly feed on ________(竹子). 2. A computer is an important _____(工具) to study online. 3. Protecting ourselves is one of the _____ _________ (最重要的) things. 4. Sixty ________ (百分之……)of the people didn’t agree with you. 5.I can’t ________ (想象)how ancient people built the Great Wall. 6.Sunglasses can ________ (保护) you from the bright sunlight. Complete the sentences with the right words or phrases. tool bamboo imagine most important Lead-in percent protect 话题梳理 话题：Amazing plants and animals (神奇的植物和动物) 功能：Talk about some amazing plants and animals. (谈论一些神奇的植物和动物) Use superlatives to compare more than two things. (用最高级来比较两个以上的事物) Discuss the connection between plants, animals and our lives. (谈论植物、动物和我们生活的联系) Explore why animals and plants are important to us. (探索为什么动植物对我们来说很重要) 话题梳理 Amazing plants and animals Amazing plants and animals Superlatives The connection between plants, animals and our lives —What’s amazing about the blue whale? —It’s the largest / biggest animal in the world. The biggest land animal in the world is the African elephant. I think the most useful plant in the world is bamboo. —We all know that people and nature are connected. Can you give me an example? —Sure. I visited... There are... The importance of plants and animals We cannot live without plants and animals. 考点突破 考点突破 1．imagine的含义和用法 ①________ life without fire. 想象一下没有火的生活。 ② The little can’t imagine _______ out alone at midnight. 这个小女孩无法想象半夜一个人出去。 Imagine going 考点突破 知识复现 imagine作动词，意为“想象”，其名词形式为imagination，意为“想象；想象力；创造力”。 I can imagine the scene clearly in my mind. ① imagine sb./sth. (to be) ... 意为“想象某人/某事……”。 The boy imagined himself (to be) a pilot. ② imagine sb. /sth. as... 意为“把某人/某事想象成……”。 She always imagines it as an easy thing. ③ imagine doing sth. 意为“想象一下做某事”。 I can't imagine singing in front of so many people. 1．imagine的含义和用法 考点突破 ① His teacher was disappointed ______ him. A. in B. to C. for D. about ② I was disappointed ______ that they had left already. A. to find B. find C. found D. finding 考点突破 2．disappointed的含义和用法 A A 考点突破 知识复现 disappointed作形容词，意为“感到失望的；沮丧的”，主语通常是人。修饰事物时通常用disappointing意为“令人失望的”。 ①be disappointed with/in sb./sth. 对某人/某事感到失望 He was disappointed in his friends. ②be disappointed at sth. 对某事为失望 She was disappointed at the result. ③be disappointed to do sth. 对做某事感到失望 I'm disappointed to hear the news. 2．disappointed的含义和用法 考点突破 ① She studies hard______ get good grades. A. so that B. because C. because of D. in order to ② He stayed home ______ finish his homework. A. so that B. because C. because of D. in order to ③ They left early ______ they wouldn't miss the train. A. in order that B. although C. because of D. in order to 考点突破 3．In order to store honey, they create honeycombs. D A D 考点突破 知识复现 句意：为了储存蜂蜜，它们建造了蜂巢。 ①in order to do...是固定搭配，意为“为了……”，强调目的，在句子中作目的状语，否定形式是在to前面加not。 We have to study hard in order to pass the exam. In order to let the students hear him, he spoke loudly. 3．In order to store honey, they create honeycombs. 考点突破 知识复现 ②在表示目的时，in order to短语通常可以转换为in order that 引导的目的状语从句。 We ran quickly in order to catch the first bus. =We ran quickly in order that we could catch the first bus. 为了能赶上首班公交车，我们飞快地跑。 3．In order to store honey, they create honeycombs. ①Social media______a big part in our daily lives. 社交媒体在我们的生活中起着很大的作用。 ②Tools will ______ _____ major part in your work. 工具将在你的工作中起到重要的作用。 考点突破 考点突破 4．Bees play an important part in the ecosystem of our planet. plays play a 考点突破 知识复现 句意：蜜蜂在地球的生态系统中起到重要作用。 play a/an... part/role in... 表示“在（做）……中扮演……角色，起…… 作用”。 Everyone can play a part in protecting the environment. 每个人都能参与环保。 Teachers play an important part in students' growth. 在学生的成长过程中老师扮演着重要的角色。 4．Bees play an important part in the ecosystem of our planet. 考点突破 考点突破 5．However, the number of bees is dropping, and scientists are worried. ①The number of the students in our school _____ 600, and a number of students ______living in the school. A. are, is B. is, are C. are, are D. is, is ②— Are there ____ number of students in your school? —Yes, _____ number of the students is about 2000. A. a, the B. the, the C. the, a D. a, a √ √ 考点突破 知识复现 句意：然而，蜜蜂的数量正在减少，科学家们都很担忧。 ①the number of 意为“……的数量”，后面接可数名词复数，作主语时谓语动词用第三人称单数形式。 The number of the little kids in this picture is 18. ②a number of... 意为“许多……”，后面接可数名词复数，作主语时谓语动词用复数形式。 A number of girls are dancing. 5．However, the number of bees is dropping,and scientists are worried. 考点突破 ①My dad likes the __________ bike because he can take it on the subway. 我爸爸喜欢折叠自行车因为他可以把它带上地铁。 ②I bought the ______ ______ last year. 我去年买了这把折扇。 考点突破 6．It’s a folding fan. folding folding fan 考点突破 知识复现 句意：它是一把折叠扇。 我们经常用动词-ing形式来作定语，来描述名词的功能或者特性，“folding”在这里用来描述扇子的功能或特性，即这种扇子是可以折叠的。 the waiting room 等候室 the sleeping bag 睡袋 the swimming pool 游泳池 6．It’s a folding fan. 考点突破 ①We use water ‌___________‌ (clean) the windows. ②People use mobile phones ‌______________‌ (communicate). ③We use maps ‌___________‌ (find) directions. 考点突破 7．People can use it to build houses and make tools and instruments. to clean to find to communicate 考点突破 知识复现 句意：人们可以用它来建筑房子、制造工具和器具。 ①use sth. to do sth. 用……来做…… She uses a pen to write a letter. 她用钢笔来写信。 ②use sth. as... 把……用作…… My brother uses a chair as a step ladder. 我哥哥把椅子当梯凳用。 7．People can use it to build houses and make tools and instruments. 考点突破 ①Feel _____ _____ contact me anytime. 可以随时联系我。 ②Feel free _____ explore the museum. 可随意参观博物馆。 ③ We are free _____ ______. 我们可以自由决定。 ‌ 考点突破 8． Please feel free to ask me any questions you have. free to to decide to 考点突破 知识复现 句意：如果有任何问题，请随意问我。 feel/be free to do sth.‌ 表示“随意或自由地做某事”，强调不受限制或约束。 You are free to choose your own path. 你可以自由选择自己的道路。 She feels free to express her opinions. 她可以自由表达意见。 8． Please feel free to ask me any questions you have. 考点突破 ①She ______ _____understand the lesson. 她似乎理解了这节课。 ② This forest has over 20 _________. 森林里有20多种竹子。 ③ The song is popular ______ the old. 这首歌很受老人们的欢迎。 考点突破 9．Bamboo seems to be a very popular plant in China. seems to bamboos with 考点突破 知识复现 句意：在中国，竹子似乎是一种很受欢迎的植物。 ①bamboo泛指竹子时为不可数名词，但是强调种类时为可数名词。 The panda eats bamboo. The climate here support all kinds of bamboos.​ ②seem to do sth.​ 似乎做某事 He seems to know the answer. 9．Bamboo seems to be a very popular plant in China. 考点突破 知识复现 ​③popular作形容词，意为“受欢迎的”。​其副词形式为popularly​。 ​popular with/among​... 受……欢迎。 popular culture​ 流行文化 ​popular opinion​ 大众观点 The app is ​popular with​ teenagers. 这个app受青少年的欢迎。 ​​ 9．Bamboo seems to be a very popular plant in China. 考点突破 ①She saved money ___________ (buy) a new car.​ ​②He exercises daily __________ (stay) healthy.​ ​③They left early __________ (catch) the train.​ ​④I called you _____________ (discuss) the project.​ 考点突破 10．Think about what you can do to protect one of the most amazing animals on earth. to buy to stay to catch to discuss 考点突破 知识复现 句意：思考下你能做什么来保护地球上最神奇的动物之一。。 ①think about 思考，考虑 I need to ​think about​ this plan carefully. ​She is ​thinking about​ changing her job. ② to protect...为不定式短语作状语，表示目的。 She studies hard ​to pass​ the exam. 10．Think about what you can do to protect one of the most amazing animals on earth. 考点突破 ①He trained _____ _____ _____ 60 miles a week.‌ 他每周训练多达60英里。 ② He eats _____ _____ rice as his father. 他吃的米饭和他爸爸一样多。 考点突破 11．It can weigh as much as 200 tons. as much as as much 考点突破 知识复现 句意：它可以重达200吨。 ①as much as后接具体数字，表示“多达”。 The temperature can reach ​as much as​ 40°C. ②as much as还可以用于比较两个事物在数量或程度上相同，修饰或替代不可数名词。 She earns ​as much as​ her brother. 11．It can weigh as much as 200 tons. 考点突破 ①We can invite ______ ______ 20 people. 我们可以邀请最多20个人。 ②The teacher told us that ______ ______ 5 errors are acceptable. 老师告诉我们最多5处错误是可以接受的。 考点突破 12．Blue whales can live up to 90 years. up to up to 考点突破 知识复现 句意：蓝鲸可以存活多达90年。 up to后接数字，强调上限。 This room holds ​up to​ 50 people. 这个房间最多可容纳50人。 The library is open ‌up to 6 p.m.‌ 学校图书馆开放至下午6点。 ​ 12．Blue whales can live up to 90 years. 语法突破 语法突破 1. I think winter is the ____________ (beautiful) season in Harbin. 2. Peter is strong. He is the ________ (heavy) student in his class. 3. The Yangtze River is ________ than the Yellow River. Actually it is the ________ river in China. (long) 4. —Which is the ________, a monkey, an elephant, or a lion? —The elephant is ________ than the other two. (big) 形容词和副词的最高级 most beautiful heaviest bigger biggest longer longest 语法突破 语法突破 5. Staying with family and friends is one of __________ (happy)things in the world. 6. ________ the five students, Lucy plays volleyball ________(well). 7. Friday is my ________ (busy) day in a week. 8. Of all the students in my class, Mary writes _______________(careful). 形容词和副词的最高级 the happiest Of best busiest most carefully 知识复现 （1）形容词、副词的最高级用于三个或三个以上的人或事物之间的比较；常用of/in来说明比较的范围；形容词和副词最高级前要加定冠词the，副词最高级前的the有时可省略。 Tom is the tallest of the three students. Tom runs fastest in his class. “one of + 最高级”是英语中表示“最……之一”的常用结构，后面通常接可数名词复数。 Beijing is ‌one of the biggest cities‌ in China. 语法突破 形容词和副词的最高级 知识复现 （2）最高级的构成（规则变化）： ①单音节词及部分双音节词​直接加 ​-est​（tall → tallest）；以 ​-e​ 结尾时加 ​-st​（fast → fastest）；以辅音字母+y结尾​时变 ​y​ 为 ​i​，再加 ​-est​（happy → happiest）；以重读闭音节结尾且末尾仅一个辅音字母​时，双写辅音字母加 ​-est​（big → biggest）。 ​②多音节词及部分双音节词​在词前加 ​the most​（beautiful → the most beautiful）。 ​ 语法突破 形容词和副词的最高级 知识复现 （3）最高级的构成（不规则变化​） good/well → best bad/badly → worst far → farthest/furthest little（少的）→least最少的 语法突破 形容词和副词的最高级 Task 1 Let’s role-play Imagine you work in the zoo. Think about your favourite animal. Discuss it with your partner. Then role-play the conversation. —What animal do you like best? —I like...best. —What’s amazing about ... —It’s one of the ... It has... Task 2 Let’s write Imagine you are a guide, you must introduce a special plant or animal to the important tourists. Write a script first. What does it look like? Why are you interested in it? How are we connected with them? What’s special about it? Explore the meaning of home. Summary Talk about some amazing plants and animals. 话题梳理 Amazing plants and animals Use superlatives to compare more than two things. Discuss the connection between plants, animals and our lives. Explore why animals and plants are important to us. Summary 要点回顾 （1）imagine的含义和用法 （2）disappointed的含义和用法 （3）In order to store honey, they create honeycombs. （4）Bees play an important part in the ecosystem of our planet. （5）However, the number of bees is dropping, and scientists are worried. （6）It’s a folding fan. Summary （7）People can use it to build houses and make tools and instruments. （8） Bamboo seems to be a very popular plant in China. （9） Please feel free to ask me any questions you have. (10) Think about what you can do to protect one of the most amazing animals on earth. (11) It can weigh as much as 200 tons. (12) Blue whales can live up to 90 years. (13) 形容词和副词的最高级 要点回顾 Homework 1．Review what we learned in this unit. 2．Preview Unit 5 What a delicious meal! $