Unit 7 The natural world 单元复习 课件 2025-2026学年译林版英语八年级上册

该初中英语课件系统梳理了译林版八年级上册Unit 7“The natural world”的核心内容，通过话题梳理明确“了解生态系统、学习保护方法、提出建议、理解重要性”四大功能，结合考点突破（如so...that...、make up等句型）和语法突破（动词及基本句型、并列连词），构建完整的知识网络。 其亮点在于融合语言能力与思维品质培养，如Lead-in环节通过词汇速答和句子填空夯实基础，角色扮演和写作任务引导学生运用语言提建议、解决生态问题，分层设计满足不同学生需求，助力教师精准复习，有效巩固单元知识。

复习课件 Unit 7 The natural world Unit review 单元复习 英语译林版八年级上册 penguin include hold return act harm therefore sadly ton noisy cover stay solve create  kill 杀死 创造 解决 伤害 停留 罩子 行动 吨 悲伤地 因此 返回 拿着 包括 企鹅 Lead-in Look and say: Say the words according to Chinese quickly. 吵闹的 1. Ecosystems can be _ different sizes, from small ponds to large grasslands. 2. The ocean _ (包含,容纳) plenty of salt water. 3. The ocean _ (覆盖,占) around 71% of the earth’s surface. 4. Quite _(相当多的) students attended the lecture yesterday afternoon. 5. He knows how to _ (解决) difficult problems. Complete the sentences with the right words or phrases. holds of Lead-in a few solve covers 话题梳理 话题:The natural world (自然界) 功能:Read about different ecosystems. (了解不同的生态系统) Learn about protecting ecosystems. (学习保护生态系统) Give suggestions on how to protect ecosystems. (给出一些保护生态的建议) Better understand the importance of protecting ecosystems. (更好地了解保护生态的重要性) 话题梳理 The natural world Read about different ecosystems. Learn about protecting ecosystems. Give suggestions on how to protect ecosystems. ... The ocean is a very large ecosystem on earth. It covers around...Wetlands only cover about 6% of the earth’s land area... Forests make up nearly ... …are really important for wildlife, so we must... Governments can do this by creating laws to stop people from... We should keep ... clean and use more environment-friendly products. It is also a good idea to tell people how to protect... We can also... Better understand the importance of protecting ecosystems. ... is home to many kinds of ... It provides us with food and offers us space to have fun... 考点突破 考点突破 1. Yes, the climate in deserts is so awful that only a few animals and plants can live there. (1) The lesson was _ easy _ everyone finished it quickly. 这节课太简单了,大家很快就完成了。 (2) The movie was _ interesting _ I watched it twice. 电影太有趣了,我看了两遍。 so that so that 考点突破 知识复现 句意:是的,沙漠的气候非常恶劣,只有少数动植物能够在那里存活。 so ... that ...意思是“如此……以至于……”,that引出结果状语从句,so后面加形容词或副词。 The bag is so heavy that I cannot carry it. 这个袋子太重了,我提不动。 1. Yes, the climate in deserts is so awful that only a few animals and plants can live there. 考点突破 考点突破 2. Each ecosystem has a role to play and helps keep the balance between all its members and the greater environment. (1) Everyone _ in protecting the environment. 每个人在保护环境中都有自己的角色。 (2) Have you anything _? 你有什么要说的吗? to say has a role to play 考点突破 知识复现 句意:每个生态系统都要发挥作用,从而帮助保持其所有成员和更大的环境之间的平衡。 have a role to play 表示“发挥作用,有责任”,动词不定式 to play 充当定语,修饰前面的名词 role,并与名词构成动宾关系。 I have a report to write this afternoon. 今天下午我有份报告要写。 There are lots of things to do in the park. 在这个公园有许多事情可做。 2. Each ecosystem has a role to play and helps keep the balance between all its members and the greater environment. 考点突破 (1) The class is _ of 30 students. 这个班由30名学生组成。 (2) These chapters _ the first part of the book. 这些章节组成了这本书的第一部分。 考点突破 3. Forests make up nearly a third of the earth’s land area. made up make up 考点突破 知识复现 句意:森林占地球陆地面积的近三分之一。 make up 意思是“形成,构成”。be made up of ... 意思是“由……构成”,强调由部分组成整体。 Girls make up 40 per cent of the whole class. 女孩占整个班级的 40%。 Life is made up of happiness and sadness. 生活是由快乐和悲伤共同组成的。 3. Forests make up nearly a third of the earth’s land area.. 考点突破 (1) Too much stress can _ health problems. 过大的压力可能会导致健康问题。 (2) Eating junk food every day may _ obesity. 每天吃垃圾食品可能会导致肥胖。 考点突破 4. This will lead to less space for wildlife. lead to lead to 考点突破 知识复现 句意:这将导致野生生物的(生存)空间越来越小。 lead to 意思是“导致,造成(后果)”,后常接名词。 A poor diet will finally lead to illness. 糟糕的饮食终将导致疾病。 Poor time management often leads to stress. 时间管理不善常常导致压力。 4. This will lead to less space for wildlife. 考点突破 (1) They plan to _ a new company next year. 他们计划明年成立一家新公司。 (2)This policy aims to _ the city _ pollution. 这项政策旨在使城市免于污染。 考点突破 5. They can set up volunteer groups to help keep wetlands free from pollution. set up keep free from 考点突破 知识复现 句意:他们可以成立志愿者小组来保护湿地免受污染的危害。 (1)set up 意思是“建立,创立”。 They set up a team to help solve the problem. (2)keep ... free from ... 意思是“保护……免受……伤害(或影响)”。 Parents always want to keep their kids free from harm. 5. They can set up volunteer groups to help keep wetlands free from pollution. 考点突破 (1) The Amazon rainforest _countless species of plants and animals. 亚马逊雨林是无数动植物物种的栖息地。(2)Australia _ some of the most unique wildlife in the world. 澳大利亚是世界上最独特的野生动物的家园之一。 考点突破 6. I know that grasslands in different places are home to different animals. is home to is home to 考点突破 知识复现 句意:我知道不同地方的草原栖息着不同的动物。 be home to的意思是“……的故乡/所在地/发源地/栖息地”。 China is home to pandas. 中国是熊猫的故乡。 This small town is home to only about a thousand people. 这个小镇只有大约一千居民。 6. I know that grasslands in different places are home to different animals. 考点突破 (1) She _ the information quickly during the lecture. 她在讲座中迅速吸收了信息。 (2)The roots of the tree _ nutrients from the soil. 树的根系从土壤中吸收养分。 考点突破 7. Plants there take in carbon dioxide from the air and produce oxygen. took in take in 考点突破 知识复现 句意:那里的植物从空气中吸收二氧化碳并产生氧气。 take in可以用来表示“吸收,缩小等”。 The sponge takes in water quickly. 海绵迅速吸收水分。 She needs to take in her dress before the party. 她需要在聚会前把裙子改小。 7. Plants there take in carbon dioxide from the air and produce oxygen. 考点突破 (1) Climate change is _ (great) damaging the ocean’s environment. 气候变化正在严重破坏海洋环境。 (2)a _ village festival 一年一度的乡村节庆 考点突破 8. Most birds are active in the daytime, so you can easily watch them there. greatly yearly 考点突破 知识复现 句意:大多数鸟类在白天活动,所以你可以轻易地在那里观察它们。 我们可以在一些形容词后面加上后缀-ly来构成副词或形容词。我们也可以在一些名词后面加上后缀-ly来构成形容词。 8. Most birds are active in the daytime, so you can easily watch them there. 考点突破 知识复现 8. Most birds are active in the daytime, so you can easily watch them there. 形容词 副词 real really easy easily careful carefully simple simply 名词 形容词 friend friendly love lovely day daily week weekly 形容词 形容词 dead 死的 deadly 致命的 live 活的 lively 活泼的 注意:daily、weekly既可以用作形容词,也可以用作副词。 (1) My father bought a new bike _ me. (2) He _(给我们讲了一个有趣的故事). (3) The teacher showed a picture _ the students. (4) Please _(请保持房门处于打开状态). (5) I want you _ (finish) your homework before dinner. (6) I hear her _ (sing) in the next room. 语法专练 9. Verbs and sentence structures II (动词及基本句型 II) for told us an interesting story keep the door open to finish singing to 知识复现 (1)有些及物动词后面可以跟两个宾语,通常其中一个指人,另一个指物;指人的叫间接宾语,指物的叫直接宾语。由这类动词构成的句子结构是“主语+谓语+间接宾语+直接宾语”。 He showed me his driving licence. 他向我出示了他的驾照。 I will buy you some flowers. 我会给你买一些花。 语法突破 9. Verbs and sentence structures II (动词及基本句型 II) 知识复现 (2)在含有双宾语的结构中,当直接宾语在间接宾语之前时,间接宾语前通常加 to 或 for 引导的短语。 He gave me some food. (= He gave some food to me. ) I will make Grandpa some jiaozi. (= I will make some jiaozi for Grandpa. ) 语法突破 9. Verbs and sentence structures II (动词及基本句型 II) 知识复现 (3)能与 to 搭配的动词有 bring、feed、give、hand、lend、offer、pass、pay、post、read、sell、send、show、take、teach、tell、write 等。 能与 for 搭配的动词有bring、build、buy、cook、find、get、leave、make、order、pick、save 等。 语法突破 9. Verbs and sentence structures II (动词及基本句型 II) 知识复现 (4)有些及物动词后面常跟宾语补足语,用来补充说明宾语的行为或状态等。这样构成的句子结构是 “主语+谓语+宾语+宾语补足语”。宾语补足语常由形容词、名词、介词短语、动词 -ing 形式、动词 -ed 形式、动词不定式来充当。 I saw him crossing the street. 我看见他在过马路。 We call them mooncakes. 我们把它们叫作月饼。 I had my computer repaired. 我找人修好了我的电脑。 语法突破 9. Verbs and sentence structures II (动词及基本句型 II) (1) She is tired, _ she continues to work. (2) Would you like tea _ coffee? (3) She is smart _ hardworking. (4) It was raining , _ we stayed at home. (5) You should hurry, _ you will miss the train. (6) I don’t want books _ pens. 语法专练 10. Using and, but, or and so (并列连词 and、but、or 和 so) but or and so or or 知识复现 我们可以用并列连词 and、but、or 和 so来连接单词、短语或者句子。 Our English teacher is kind and helpful. The boy is not very tall, but he runs very fast. Do you often go home on foot or by bicycle? She was ill, so she did not go to school. 语法突破 10. Using and, but, or and so (并列连词 and、but、or 和 so) (1)并列连词 and 意思是“和,又”,表示并列关系。 Mike likes playing football and singing songs. 迈克喜欢踢足球和唱歌。 Tom and Mary are both from America. 汤姆和玛丽都来自于美国。 知识复现 语法突破 10. Using and, but, or and so (并列连词 and、but、or 和 so) (2)并列连词 but 意思是“但是”,表示转折关系,所连接的成分意思往往相反或相对。 The room was small but comfortable. 房间虽小,但很舒适。 She is very smart, but she doesn’t like studying. 她很聪明,但是她不喜欢学习。 知识复现 语法突破 10. Using and, but, or and so (并列连词 and、but、or 和 so) (3)并列连词 or 意思是“或者”,表示选择关系。 Which do you like better, juice or coffee? 果汁和咖啡,你更喜欢哪一个? 注意:在否定句中并列成分通常用 or 连接,而不用 and。 I cannot speak Japanese or French. 我不会说日语和法语。 知识复现 语法突破 10. Using and, but, or and so (并列连词 and、but、or 和 so) (4)并列连词 so 意思是“因此,所以”,表示因果关系,常用来连接两个简单句。 It began to rain, so we went home. 注意:并列连词so 和从属连词because(因为)不能一起使用。 The dog was hungry, so we gave it something to eat. (=Because the dog was hungry, we gave it something to eat. ) 知识复现 语法突破 10. Using and, but, or and so (并列连词 and、but、or 和 so) Task 1 Let’s role-play Assume you are a volunteer for an environmental protection department, and you need to discuss with your partners what should be done. Think about what to say. Then role-play the conversation. —What can we do to help protect... —Well, we should not... We can also work with... —That’s a good idea... causes pollution and damages the ecosystem in... —That’s true. And maybe we can... when... It’s a great way to save... —Yes. We can encourage people to protect... too. — You said it! We can show people different ways to save... —... Task 2 Let’s write Imagine you are a member of an eco-club. You are going to write a proposal asking people to protect an ecosystem and help solve the problems it faces. What ecosystem do you want to protect? Why is it important for us? What can we do to protect it? What problems does it face? Summary Learn about protecting ecosystems. 话题梳理 The natural world Give suggestions on how to protect ecosystems. Better understand the importance of protecting ecosystems. Read about different ecosystems Summary 要点回顾 (1)Yes, the climate in deserts is so awful that only a few animals and plants can live there. (2)Each ecosystem has a role to play and helps keep the balance between all its members and the greater environment. (3)Forests make up nearly a third of the earth’s land area. (4)This will lead to less space for wildlife. (5) They can set up volunteer groups to help keep wetlands free from pollution. Summary (6) I know that grasslands in different places are home to different animals. (7)Plants there take in carbon dioxide from the air and produce oxygen. (8)Most birds are active in the daytime, so you can easily watch them there. (9)Verbs and sentence structures II (动词及基本句型 II) (10)Using and, but, or and so (并列连词 and、but、or 和 so) 要点回顾 Homework 1.Review what we learned in this unit. 2. Preview unit 8 Safe and sound. Bye-bye! $