Unit 4 The Earth 单元写作专项训练 2026-2027学年沪教版英语七年级上册

**基本信息** 以“地球保护”为主题，构建“词汇-句型-篇章”三阶写作体系，通过五步高分法实现从基础表达向逻辑化写作的能力跃升。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |写作素材库|6类主题词汇、12个高频搭配、4类功能表达|按“描述-问题-建议-观点”功能分类，建立主题词汇网络|从地球概况到保护行动，形成“现象-问题-对策”认知链条| |黄金句型库|12个基础句型、6组升级对比|通过“基础句-升级句”对照，掌握细节拓展与逻辑连接技巧|句型难度梯度递进，从简单描述到复杂论证| |高分写作方法|5步成文法（审题-结构-内容-语言-检查）|提供“三段式”结构模板，强调原因、细节、影响的内容丰富策略|写作流程标准化，培养有序思维与问题解决能力| |阶梯训练|句子训练（3Level共22题）、篇章训练（3篇范文）|从汉译英到句型仿写再到句子升级，实现语言能力分层突破|从单句准确表达到篇章逻辑构建，契合语言能力发展规律|

Unit 4 The Earth 单元写作专项训练 一、单元核心信息 二、写作素材库 1. 主题词汇 地球概况 Earth 地球 planet 行星 solar system 太阳系 field 田野 mountain 山 river 河流 sea 海；海洋 forest 森林 desert 沙漠 land 陆地 ocean 海洋 自然特征 amazing 令人大为惊奇的 hot 炎热的 freezing 极冷的 high 高的 deep 深的 wide 宽的；宽阔的 bright 明亮的 dark 黑暗的 动物与植物 whale 鲸 tiger 老虎 lion 狮子 bird 鸟 butterfly 蝴蝶 seahorse 海马 bear 熊 fish 鱼 plant 植物 tree 树 grain 谷粒 animal 动物 环境问题 pollution 污染 plastic 塑料 plastic pollution 塑料污染 water pollution 水污染 air pollution 空气污染 sandstorm 沙暴 harmful 有害的 disappear 消失；不见 cut down 砍倒 保护行动 protect 保护 provide 提供；供应 support 支持；维持 explore 探索 take care of 照顾；照料 blow away 吹走 solve 解决 solution 解决办法 地理术语 equator 赤道 North Pole 北极 South Pole 南极 sea level 海平面 groundwater 地下水 2. 高频搭配 be covered by ... 被……覆盖 as far as we know 据我们所知 sea level 海平面 what’s more 更重要的是 provide ... with ... 提供；供应；给予 take care of 照顾；照料 hundreds of 数以百计 blow away 吹走 cut down 砍倒 end up in 最终落入 fewer and fewer 越来越少 more and more 越来越多 3. 写作功能表达 描述地球 The Earth is our home. 地球是我们的家。 About 70% of the Earth is covered by water. 地球约70%被水覆盖。 The Earth provides us with ... 地球为我们提供…… 描述问题 The Earth is facing ... problems. 地球正面临……问题。 There is more and more ... 有越来越多的…… ... are in danger. ……处于危险之中。 ... are dying because of ... ……因为……而死亡。 提出建议 We should ... 我们应该…… We can ... 我们可以…… It is important to ... ……是重要的。 Let’s ... 让我们…… 表达观点 The Earth is an amazing planet. 地球是一颗令人惊叹的行星。 We only have one Earth. 我们只有一个地球。 Everyone should play a part in ... 每个人都应该在……中发挥作用。 三、黄金句型库 1. 开头句型 The Earth is an amazing planet！ 地球是一颗令人惊叹的行星！ The Earth is our home and it provides us with everything we need. 地球是我们的家，它为我们提供我们所需要的一切。 Let’s explore，learn about and take care of our home. 让我们探索、了解并照顾我们的家园。 As far as we know，out of all the planets，only the Earth can support life. 据我们所知，在所有行星中，只有地球能支持生命。 2. 主体句型 Some places are very hot，like the areas near the equator. 有些地方非常热，比如赤道附近的地区。 About 70% of the Earth is covered by water. 地球约70%被水覆盖。 The Earth is home to millions of animals. 地球是数百万动物的家园。 The Earth provides us with all the things we need，such as food，water，air and energy. 地球为我们提供我们所需的一切，比如食物、水、空气和能源。 There is more and more plastic pollution in the sea. 海洋中的塑料污染越来越多。 We are harming the Earth in many ways. 我们正在以多种方式伤害地球。 3. 结尾句型 We only have one Earth，so we have to protect it. 我们只有一个地球，所以我们必须保护它。 Let’s take care of our home. 让我们照顾好自己的家园。 I hope everyone can do something to protect the Earth. 我希望每个人都能为保护地球做些什么。 It is our duty to protect the environment. 保护环境是我们的责任。 4. 句型升级 基础句 升级句 The Earth is a beautiful planet. 地球是一颗美丽的星球。 The Earth is a beautiful planet with high mountains，blue seas and beautiful rivers. 地球是一颗美丽的星球，有高山、蓝色的大海和美丽的河流。 Some places are hot. 有些地方很热。 Some places are very hot，like the areas near the equator. 有些地方非常热，比如赤道附近的地区。 The Earth has many plants. 地球上有很多植物。 The plants on Earth are wonderful in many different ways. 地球上的植物在很多方面都很奇妙。 The sea is important. 海洋很重要。 The sea is important because it covers about 70% of the Earth and is home to many animals. 海洋很重要，因为它覆盖了地球约70%的面积，并且是许多动物的家园。 There is pollution. 有污染。 There is more and more plastic pollution in the sea，and many sea animals get ill because of it. 海洋中的塑料污染越来越多，许多海洋动物因此生病。 We should protect the Earth. 我们应该保护地球。 We only have one Earth，so we should take care of it and protect it for our future. 我们只有一个地球，所以我们应该照顾它，为我们的未来保护它。 四、高分写作方法 Step 1 审题定位 明确写作主题为“介绍地球并呼吁保护地球”，写作内容应包括地球的美丽之处、地球面临的环境问题以及我们可以采取的保护行动。 Step 2 搭建结构 第一段：引出主题 描述地球是一颗美丽的星球，介绍地球的基本情况（海洋、陆地、山脉、河流等）。 第二段：具体描述 列举地球面临的环境问题（水污染、塑料污染、砍伐森林等），说明这些问题对动植物的危害。 第三段：总结感受和计划 提出保护地球的具体行动，呼吁大家一起保护我们唯一的家园。 Step 3 丰富内容 不要只写简单观点，要加入原因、细节和影响。例如不只写“There is pollution.”，还要写“There is more and more plastic pollution in the sea. Fish and other sea animals eat plastic and get ill.” Step 4 提升语言 使用There is / are ... 句型、连接词（so，because，however，such as）、形容词和表示递进的连接词（what’s more），使文章逻辑清晰、内容丰富。 Step 5 检查修改 检查内容是否完整、结构是否清晰（三段式）、there be 句型是否正确、拼写和标点是否有误。 五、阶梯训练 （一）句子训练 Level 1 汉译英（共5题） 1. 地球是一颗令人惊叹的星球！ ____________________________________________________________ 2. 地球约70%被水覆盖。 ____________________________________________________________ 3. 地球是数百万动物的家园。 ____________________________________________________________ 4. 地球为我们提供食物、水、空气和能源。 ____________________________________________________________ 5. 我们只有一个地球，所以我们必须保护它。 ____________________________________________________________ Level 2 句型仿写（参照例句完成句子） 句型 1：Some places are...，like...（描述不同地方的特征） 例句： Some places are very hot，like the areas near the equator. （1）有些地方非常寒冷，比如北极地区。 ____________________________________________________________ （2）有些地方很高，比如喜马拉雅山。 ____________________________________________________________ 句型 2：About...% of the Earth is covered by...（描述覆盖面积） 例句： About 70% of the Earth is covered by water. （1）地球约30%被陆地覆盖。 ____________________________________________________________ （2）地球约三分之二的表面被水覆盖。 ____________________________________________________________ 句型 3：The Earth is home to...（描述栖息地） 例句： The Earth is home to millions of animals. （1）森林是许多动物的家园。 ____________________________________________________________ （2）海洋是许多鱼类的家园。 ____________________________________________________________ 句型 4：The Earth provides us with...（描述地球提供之物） 例句： The Earth provides us with all the things we need. （1）地球为我们提供食物和水。 ____________________________________________________________ （2）太阳为我们提供光和热。 ____________________________________________________________ 句型 5：There is / are...（描述存在的问题） 例句： There is more and more plastic pollution in the sea. （1）地球正面临越来越多的环境问题。 ____________________________________________________________ （2）每年有数百万吨塑料进入海洋。 ____________________________________________________________ 句型 6：We should...（提出建议） 例句： We should organize a Beach Clean-up Day. （1）我们应该停止污染河流和湖泊。 ____________________________________________________________ （2）我们应该带自己的购物袋去超市。 ____________________________________________________________ Level 3 句子升级 要求：参照下方示例，将基础句升级为内容更丰富、表达更高级的句子。 示例： 基础句：The Earth is beautiful. 升级句：The Earth is a beautiful planet with high mountains，blue seas and beautiful rivers. 1. 基础句：Some places are hot. 升级句：____________________________________________________________ 2. 基础句：The Earth has many plants. 升级句：____________________________________________________________ 3. 基础句：The sea is important. 升级句：____________________________________________________________ 4. 基础句：There is pollution. 升级句：____________________________________________________________ 5. 基础句：Animals are in danger. 升级句：____________________________________________________________ 6. 基础句：We should protect the Earth. 升级句：____________________________________________________________ （二）篇章训练 1．假如你是李华，请你以Protect Our Earth为题，写一篇英语短文，呼吁大家保护地球。 内容要点： 1. 地球是人类唯一的家园； 2. 地球目前存在的环境问题； 3. 我们可以采取的保护措施； 4. 发出呼吁。 写作要求： 1. 词数70-90词； 2. 条理清晰，语句通顺，语法正确； 3. 不得出现真实校名、人名。 Protect Our Earth __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2．地球是人类、动物、植物共同的家园，但随着各类污染越来越严重，地球正面临许多环境问题。学校校刊 school life 正在征集以“Let’s protect the Earth”为题的文章。请你根据以下提示，写一篇不少于80词的短文。不得出现真实人名、学校名。 提示： 1. 重要性：地球是一个美丽的行星，有……；是动植物、人类的家园。 2. 主要问题：说出地球面临的污染问题和危害。 3. 措施：从日常生活中的小事做起，停止污染，保护地球。（至少列举两项措施） Let’s protect the Earth __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3．假如你是李华，你最近观看了法国的地理纪录片《家园》(Home)，真切地认识到地球的壮丽与脆弱如此并存。请根据以下要点写一篇短文，呼吁人们爱护环境，保护地球。 The Earth is amazing. (1)… (2)… The Earth is easily hurt. (1)… (2)… We should... (1)… (2)… 要求： （1）字数80词左右，开头已给出，不计入总词数； （2）文中不得出现真实姓名和校名； （3）可适当增加细节，以使条理清楚、行文连贯； （4）标点正确，书写工整，文章连贯。 Recently, I watched the documentary Home. It made me see two sides of our planet: it is not only amazing but also easily hurt. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 参考答案 Level 1 汉译英 1. The Earth is an amazing planet！ 2. About 70% of the Earth is covered by water. 3. The Earth is home to millions of animals. 4. The Earth provides us with food，water，air and energy. 5. We only have one Earth，so we have to protect it. Level 2 句型仿写 句型 1 （1）Some places are very cold，like the areas near the North Pole. （2）Some places are very high，like the Himalayas. 句型 2 （1）About 30% of the Earth is covered by land. （2）About two thirds of the Earth’s surface is covered by water. 句型 3 （1）Forests are home to many animals. （2）The sea is home to many kinds of fish. 句型 4 （1）The Earth provides us with food and water. （2）The sun provides us with light and heat. 句型 5 （1）The Earth is facing more and more environmental problems. （2）There are millions of tonnes of plastic ending up in the sea every year. 句型 6 （1）We should stop polluting rivers and lakes. （2）We should bring our own shopping bags to the supermarket. Level 3 句子升级 （以下为参考升级答案，其他合理升级也可接受） 1. 升级句：Some places are very hot，like the areas near the equator，and some are freezing cold，like the North and South Poles. 2. 升级句：The plants on Earth are wonderful in many different ways. The tallest trees can reach over 100 metres in height. 3. 升级句：The sea is important because it covers about 70% of the Earth and is home to many amazing animals. 4. 升级句：There is more and more plastic pollution in the sea. Fish and other sea animals eat plastic and get ill. 5. 升级句：Many animals are in danger because we cut down too many trees and pollute their homes. 6. 升级句：We only have one Earth，so we should take care of it and protect it for ourselves and for the future. 篇章训练（参考范文） 1．例文 Protect Our Earth The Earth is our only home. It gives us clean air, fresh water and rich resources. We can’t live without it. But our Earth is in danger. There’s serious air, water and land pollution. People waste resources and cut too many trees. Many animals lose homes. It’s time to protect it. We can save water and power daily. Reuse goods and reject plastic. Planting more trees helps a lot. Let’s work together to guard our beautiful home and make it better. 2．例文 Let’s protect the Earth The Earth is a beautiful planet. There are many blue seas and high mountains and beautiful clouds flowing in the sky. The Earth is home to all animals and plants. However, the Earth is facing a lot of problems. People are harming the Earth in many ways. For example, people put rubbish into rivers and seas. The sea is becoming dirtier and dirtier. Some people are cutting down trees. There are fewer and fewer trees in the world, which causes many natural disasters. Factories and family burn things to make energy. It pollutes the air and makes many people get ill. We only have one Earth, so we have to protect it. Let’s take action. First, we shouldn’t throw away rubbish. We should put it into the dustbin. Second, we must plant more trees. Trees can make the air clean and the world beautiful. Third, we should take the bus or underground more to go to school or go to work. All in all, if we don’t want anything bad happen to our only home, it’s important for us to protect the Earth. 3．例文 Recently, I watched the documentary Home. It made me see two sides of our planet: it is not only amazing but also easily hurt. As we all know, the Earth is amazing. We can see beautiful landscapes everywhere. However, the Earth is easily hurt. People burn things and this pollutes the air. Besides, people put rubbish into the sea and under the ground. This pollutes the water and soil. We must protect our Earth. First, we should plant more trees. Second, we mustn’t throw rubbish everywhere. Most importantly, we must turn off the lights when we leave the room. If we can do these, our Earth will become more and more beautiful. 学科网（北京）股份有限公司 $